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Laboratories and People  

Numerous tree-ring sites around the world have set up their own Home Pages on the World Wide Web. You can browse to see other projects that are currently being conducted by the various institutions. Do you need to find a tree-ring laboratory nearby to your home town? This is the place to look - I think you'll be surprised to see the numerous laboratories around the world that practice tree-ring research. If you or any of your colleagues know of an institution that should be added to this page, by all means contact me at the e-mail address at the bottom of this page. If you establish your own web site, please let me know so I can add your address to this page.

Major laboratories at academic institutions (arranged alphabetically by institution name)
Major laboratories at other institutions (arranged alphabetically by laboratory name)
Personal home pages for individuals (arranged alphabetically by last name)

Be sure to check out this Google Map of tree-ring laboratories located in the United States created by Dr. Chris Gentry of Austin Peay State University! Go Peay!

Tree-ring labs in the U.S.

Major Laboratories at Academic Institutions


University of Alabama
Dendrochronology Research Lab

Directed by Dr. Matt Therrell, the Dendrochronology Research Lab (some call it “Drill”) focuses on using tree rings to study past climate. The “DRL team” are particularly focused on the reconstruction of extreme climate events such as drought and flooding. The purpose of the research is to compare the data stored in trees centuries of years old to the limited weather and climate data that people have recorded over the past 100 to 150 years. This web site is well done, visually appealing with beautiful photos, with links to personnel, current projects, and publications.


University of Alabama
Forest Dynamics Lab

Directed by Dr. Justin Hart, the lab focuses on forest community and ecosystem ecology and plant geography. Major emphasis is placed on the elucidation of forest development and successional patterns. Much of our work examines the influence of disturbance events, land-use history, and physical environmental conditions (such as climate) on forests at the community and ecosystem levels. Links are provided to personnel in laboratory, research projects underway, publications, coursework offered, and photos.


Appalachian State University
Appalachian Tree Ring Lab

Located in Boone, North Carolina, this newly created lab is directed by Dr. Saskia van de Gevel and Dr. Pete Soule of the Department of Geography and Planning. Current projects are being conducted in Montana, North Carolina, and Tennessee, and the lab welcomes inquiries from interested undergraduates and potential graduate students. Their research focuses on annual resolution information about climate, disturbance regimes, and cultural history. Projects in their laboratory have been funded by the National Science Foundation, The Nature Conservancy, Grandfather Mountain, and others.


University of Arizona
Laboratory of Tree-Ring Research

Located at The University of Arizona in Tucson, Arizona, the LTRR was the first laboratory of its kind anywhere in the world, first established in 1937 by the father of dendrochronology, A.E. Douglass. Today, it serves as one of the premier tree-ring research facilities with nearly 90 personnel investigating nearly all topics in dendrochronology. Their Web Home Page states, "Current research efforts are directed toward the quantification of tree-ring parameters, the establishment of new tree-ring chronologies throughout the world, the use of tree rings in the study of forest ecosystems, the reconstruction of paleohydrologic and paleoclimatic variables, and the documentation and development of prehistoric chronological controls."

LUHNA Project - Southwestern United States

LUHNA (Land Use History of North America) is an ambitious project in which the Laboratory of Tree-Ring Research (with Dr. Thomas W. Swetnam) is involved. The goal of LUHNA is to document the history of land use in various sectors of the United States to provide "clues from the past about our future environment." Dendroecological analyses will play a major role in this project, especially for characterizing changes in the landscape due to wildfires.

News stories about the LTRR:

Two UA Environment Experts Named Regents' Professors
Climate, Mediterranean cultures, change
Giant sequoia slice planted at new home in tree-ring lab
How The Smokey Bear Effect Led To Raging Wildfires

The life and times of a dendrochronologist: The story is in the tree rings
Ancient tree-ring records from southwest U.S. suggest today's megafires are truly unusual
Tree Rings Tell Ancient Tales
University of Arizona professor discusses historic precipitation data obtained from tree rings
20th Century One of Driest in Nine Centuries for Northwest Africa
Growth Spurt in Tree Rings Prompts Questions About Climate Change
Marvin Stokes, Botanist Who Harvested Navajo History From Trees, Dies at 82
Tree-Ring Curator Works to Manage Massive Research Collection


The University of Arkansas
Tree-Ring Laboratory

This university has had a long and storied tradition in dendrochronology, headed by Drs. David W. Stahle and Malcolm K. Cleaveland in the Department of Geography. Recently, a Ph.D. program in Environmental Science was announced that could well involve tree-ring research. This link also provides information on the "Ancient Cross Timbers Project" initiated by this lab, "dedicated to the location and appreciation of these authentic ancient forest remnants." A wonderfully illustrated and informative site.

News stories about the Tree-Ring Laboratory:

Climatology: Lessons from the Past and the Reality of Global Warming
Megadeath in Mexico
Researchers find evidence of 16th century epic drought over North America
Extreme droughts played major role in tragedies at Jamestown, "Lost Colony" 


Austin Peay State University
Biogeography, Environment, and Tree-Ring Laboratory (BETR)

This is a newly established research unit as of November 2009 within the Department of Geosciences at Austin Peay State University, Tennessee, U.S.A. Faculty and students in the B.E.T.R. Lab perform research in the fields of biogeography, dendrochronology, geospatial analysis, and environmental studies. Created by Dr. Christopher Gentry, this lab's web site provides information on research projects, personnel, news items about the lab, a fantastic photo gallery, and links to other sites. This lab is also one of the very few conducting research in urban forestry!


Universität Bern
Laboratory of Dendrogeomorphology

Located in scenic western Switzerland, this laboratory specializes in the use of tree-ring data to learn about past land-surface processes, such as rock fall, activity, debris flows, erosion rates, and snow avalanches. Dr. Markus Stoffel is the laboratory coordinator of this impressive lab, which includes many advanced graduate and undergraduate students. At this site, you can learn about their projects and publications, and even access a very nice photo gallery.


Carleton University
Palaeoecological Laboratory

Headed by Dr. Michael Pisaric, this laboratory focuses on a variety of palaeoecological techniques to learn about the past environment, including both lake sediment analysis (fossil pollen, stomata and charcoal) and dendrochronology. Current projects are being conducted in the Yukon Territory, northern British Columbia, Northwest Territories and eastern Ontario. On their web site, you'll find information about their facilities, projects, personnel, publications, and important links. They're also interested in recruiting graduate students!


Chinese Academy of Sciences, Institute of Botany
Tree-Ring Laboratory

Located in the Center of Plant Ecology at the Institute of Botany, Chinese Academy of Sciences, in Beijing, China, this laboratory is directed by Dr. Qi-bin Zhang, who has a host of talented technicians and students working and learning in this impressive laboratory. The web site contains information about current projects, lab personnel, facilities, publications, and a photo gallery, and the laboratory also encourages collaboration with other institutes. The Institute of Botany and the Tree-Ring Laboratory hosted the Seventh International Conference on Dendrochronology in the summer of 2006.


Institute of Prehistoric Archaeology at the University of Cologne
Laboratory of Dendroarchaeology

Dr. Thomas Frank is the head of this laboratory since 2008, which has a long history of conducting tree-ring research in Europe under the leadership of Dr. Burghart Schmidt from 1972 to 2008. The web pages for this laboratory (in German, English texts in preparation) provide general information on tree-ring dating, the development of a continuous tree-ring chronology back to 7237 BC, the many projects being conducted by this laboratory (even arranged by period), the numerous publications of this laboratory (including mostly books and edited volumes but also downloadable PDF-files), information on contact and services, a growing picture gallery and a page of links.


Columbia University
Lamont-Doherty Earth Observatory Tree-Ring Laboratory

Founded in 1975 by Dr. Gordon Jacoby and Dr. Edward R. Cook, this laboratory is one of the most active in the tree-ring sciences, publishing some of the most influential articles in dendrochronology (see under "Classic References"). Their scientists "...have been involved in a variety of research applications in tree-ring analysis, including dendroclimatology, paleoseismology, forestry, resource management, volcanology and archaeology." Their Home Page provides information about personnel, research interests, research sponsors, and facilities.

News stories about the LDEO Tree-Ring Laboratory:

Bidding Farewell to the Jewel of the Lotus
Tree ring study shows the southeast USA drought was mild compared to past events
Trees Tell the Story of 500 Years of NYC Drought History
Timelines In Timber: Inside A Tree-Ring Laboratory
Tree Rings Tell Epic Tale of Asian Droughts
Tree rings map 700 years of Asian monsoons
Tree-Ring Laboratory receives $5.5 million to study climate dynamics
A New Twist on Tree Rings
Tree rings reveal 'mega-droughts'

Tree rings show earth was warm 800 years ago
Mongolian Tree Rings Confirm Global Warming Findings

Tree Rings Show Rising Earth Temperatures


Cornell University
The Malcolm and Carolyn Wiener Laboratory for Aegean and Near Eastern Dendrochronology

Headed and directed by Prof. Sturt Manning of the Department of the History of Art and Archaeology at Cornell University, this project has as its goal "...to build a single master tree-ring chronology for the Aegean and Near East that will extend from the present to the seventh millennium B.C. or whenever timbers began to be used in quantity as construction material in settled communities." These informative Web pages also provide links to the many reports published by this highly productive laboratory.

News stories about the laboratory:

How old trees and ancient wood are helping rewrite history
X-rays Track Tree-Ring Growth Anomalies
Can ancient tree rings help us understand climate change?
Scientists Use Tree Rings to Date 3,000-Year-Old Volcanic Eruption
Scientists hope tree rings will tell Mediterranean's age
Cornell Researchers Precisely Date Wood From Ancient Tomb In Turkey


University of East Anglia
Climatic Research Unit

The Climatic Research Unit is located in Norwich, England. Researchers here, such as Dr. Keith R. Briffa and Dr. Phil Jones, have conducted some of the most influential tree-ring research yet published, concentrating especially on long-term (> 2,000 years) climate reconstructions for northern Eurasia. This link is well worth a look.


Eastern Kentucky University
Cumberland Laboratory of Forest Science

Led by Dr. Neil Pederson, this laboratory conducts tree-ring research throughout the Southeastern U.S. Projects include research on drought history in Kentucky, the dendroecology of non-leucobalanus trees, and carbon sequestration in Great Smoky Mountains National Park. These pages introduce you to the students involved with these projects, the publications of the laboratory, and Kentucky's old-growth forests. Neil also maintains the Eastern Oldlist, the database that contains the maximum ages so far yet discovered for many eastern tree species.


Eidgenössiche Technische Hochschule Zürich
Swiss Federal Institute of Technology Zürich
Tree-Ring Laboratory

A component of the Chair of Forest Ecology at ETH Zürich, headed by Prof. Dr. Harald Bugmann, this laboratory is directed by Dr. Christof Bigler. Their research focuses on dendroecological studies by using "tree rings to study forest dynamics such as regeneration, growth and mortality processes, and we investigate the effects of climate and natural disturbances on trees, forests and landscapes." The research conducted in this lab concentrates on mountain environments.


University of Forestry, Bulgaria
Dendrochronology Laboratory

This new laboratory in Bulgaria actually has been publishing in tree-ring science for a number of years now. Led by  Dr. Stefan Mirtchev, Dr. Ilia Vakarelov, and Dr. Momchil Panayotov, this laboratory engages in such diverse research as stressors in Pinus sylvestris plantations, limiting factors at treeline afforestations, and avalanches along the Northwestern slope of Todorka Peak, Pirin mountains. These pages contain links to lab members, publications, research projects, and photo galleries.


Albert-Ludwigs-Universität Freiburg
Institut für Waldwachstum
Institute for Forest Growth

The Institute for Forest Growth (IWW) is located in Freiburg i. Br., Germany. Staff of the IWW study the growth of forest trees in their environment and develop decision tools for controlling forest growth. The web pages are bilingual, and provide information about the main topics of research, the teaching courses and educational program, listing of its staff, events, recent publications, as well as facilities and services of the institute.


University of Göttingen
International Tree-Ring Laboratory:
Tree-Ring Research in Temperate, Tropical and Subtropical Regions

Dr. Martin Worbes is perhaps the world's leading expert on the dendrochronology of tropical and subtropical tree species, and has created a set of web pages that describes his laboratory. Here, you'll find links to current science and research projects, the dendroecological fieldweeks operated by the Forstbotanisches Institut, collaborative projects, and a publications list.


University Griefswald

The dendroecological laboratory DendroGreif was established in 2005 at the University of Greifswald, Germany, with the goal to use dendrochronology and dendroecology to improve the understanding of ecological processes at scales ranging from the individual plant to the landscape. Their major research foci are shrubs and trees in arctic, boreal, and alpine environments and forests in central Europe. They apply anatomical analyses of wood cell features and new equipment, e.g. an ITRAX Multiscanner for density coupled with XRF Element analysis for dendrochemistry.


University of Guelph
Climate & Ecosystem Dynamics Research Lab (CEDaR)

Led by Dr. Ze'ev Gedalof, this laboratory conducts research on a diverse range of problems relating to climatic variability and forest ecology. Most of their research involves the analysis of tree rings in order to understand past patterns of climatic variability, stand dynamics, and disturbance regimes. The Lab is is equipped with state-of-the-art facilities for the analysis of ecological and dendrochronological data.


University of Hamburg
Institute for Wood Biology and Wood Protection

Located at the University of Hamburg, Germany, the purpose of this research center is to develop "...a purpose-orientated forestry and an efficient wood-processing technology." Their Home Page provides links to their various institutions, including one to the Institute for Wood Biology and Wood Protection, headed by the eminent dendrochronologist, Prof. Dr. Dieter Eckstein.


University of Helsinki
Department of Geology

This university has a long history of conducting quality tree-ring research, especially using subfossil Scots pine mega-fossil samples that abound in Finland. Professor Matti Eronen along with post-doctoral fellow Samuli Helama have been been very proficient publishing many articles in recent years. At their web site, you can read about their graduate students, the current research of the department, and access a list of their recent publications.


University of Hohenheim
Hohenheim Tree-Ring Laboratory

This tree-ring lab was formed in the 1980s by Dr. Bernd Becker. Today, the archive consists of more than 40,000 wood samples of living, historical and subfossil trees. The precise dated samples form a 12,500 year-long tree-ring chronology spanning the entire Holocene and are suited for paleo-environmental studies. In addition to “classical” tree-ring research, they focus on quantitative wood anatomy and on the development of high-resolution imaging techniques.


Humboldt State University
Dendroecology Lab

Directed by Dr. Dr. Rosemary Sherriff, this lab "supports both undergraduate and graduate research in biogeography, landscape ecology, forest ecology, climate change and forest disturbance ecology, dendrochronology, and environmental applications of GIS and related spatial analyses." Links at this site will tellyou about the lab's members, research projects, publicaitons, and outreach.


University of Idaho
PaleoEcology and Fire Ecology Lab

Directed by Dr. Philip Higuera, this laboratory is part of the College of Natural Resources and "focuses on understanding the interactions among climate, vegetation, and fire regimes over a range of spatial and temporal scales, in the past, present, and future." Lab members work at sites in Alaska, Canada, the Rocky Mountains, and Australia, analyzing lake sediments, tree-ring records, and historical records to learn about past environments.


Indiana State University
Biogeography and Dendrochronology Laboratory

Dr. Jim Speer is well-known to all of us and he's been at Indiana State University for several years now. In this time, he's developed a world-class laboratory devoted to Biogeography and the use of Dendrochronology to answer questions about the environment. Current projects include effects of cicadas on tree growth, effects of recent climate change in central Indiana, and climate response in regional tree species. This site provides information on past presentations, graduate students and personnel, publications, and links to valuable sites.


University of Innsbruck
Dendroecology and Tree Physiology

This laboratory focuses on impact of past and present climate conditions on tree growth at boundaries of tree existence in the Alps, especially at the Alpine timberline and within dry inner Alpine environments. They analyse radial growth increments (tree rings) at the inter-annual and intra-annual scale together with tree physiological parameters to better understand the ecological relationships between tree growth, climate and site conditions. Because there is a lack of knowledge in the physiological basis of climate-growth relationships, the influence of climatic variables and site conditions on cambial activity and dynamics of wood formation is a major concern.


Universität Innsbruck
Alpine Tree-Ring Group

Led by Dr. Kurt Nicolussi of the Institute of Geography, this group is well-known for their research in alpine areas of Europe, developing extremely long tree-ring chronologies for the late Holocene. They conduct research on treeline dynamics, climate reconstruction, and dendroarchaeology, heavily relying on subfossil wood. Special emphasis is given on the analysis and reconstruction of the environmental and climatic evolution of high-mountain regions of the Alps during the Holocene. Links on this web site gives details on their publications, group members, and research projects.


James Cook University
Tropical Dendrochronology Laboratory

The Tropical Dendrochronology Laboratory (TDL) specializes in developing proxies of past climate from the tree rings and chemistry of tropical plants, including trees and cactus. This lab is especially interested in long records of climate that show climate before CE 1850 (before weather instruments were widespread) and records from the tropics, an important region for many global climate features and a region where these records are relatively rare. The TDL also administers the Australasian Dendrochronology Page on Facebook.


University of Joensuu
Laboratory of Dendrochronology

Directed by Pentti Zetterberg, the studies in this laboratory (established 1985) concern mainly Scots pine (Pinus sylvestris L.) but also common (or Norway) spruce (Picea abies (L.) H. Karst.) and pedunculate oak (Quercus robur L.) in Finland and adjacent areas in northern Norway and Russian Karelia. The many research topics of this laboratory are quite impressive (and you can read about these through the lab's searchable list of research topics), from dating of shipwrecks and underwater wooden structures, to the dating of medieval castles, to the development of 7589-year subfossil pine tree-ring chronology for Finnish Lapland.


University of Joensuu
SAIMA Unit of the Savonlinna Department of Teacher Education

This famous center for research is administered by the University of Joensuu, Karelian Research Institute, Section of Ecology. Markus Lindholm, Jouko Meriläinen, Petteri Vanninen, and 2-4 technicians conduct research in various aspects of dendroecology, and you can access their extensive list of publications that gives details on their accomplishments. The link that shows pictures is well worth exploring as these photographs show how these researchers pluck subfossil pine trees from the depths of high-latitude lakes to build very long tree-ring chronologies.


Université Joseph Fourier
Centre d'Ecologie Alpine

This laboratory has been one of the most productive dendroecological research teams in recent years. Created and assembled by Dr. Christian Rolland, this web site provides a large amount of information on their investigators (including Véronique Petitcolas, Carole Desplanque, Richard Michalet, and Jeanne Florence Schueller), their publications, the tree species they've analyzed, and the sites they've examined. They also have macrophotographs available of the species they've investigated.


Université Laval
Centre d'études nordiques

Located in Sainte-Foy, Québec, the CEN is a multifaceted center for the study of natural history. Concentrating on arctic and subarctic environments, the center is home to several top dendrochronologists, such as Louise Filion, Serge Payette, and Yves Bégin. Their research has covered practically all topics in dendrochronology, including climate reconstructions and interpretations, dendrogeomorphology, palaeoecology, and dendroecology.


University of Ljubljana
Laboratory of Wood Anatomy and Dendrochronology

Directed under the Chair of Wood Science (Head, Dr. Katarina Cufar), this laboratory has been conducting significant tree-ring research since 1993. The laboratory conducts investigations and teaching in the fields of wood anatomy, dendrochronology, biological, physical and mechanical properties of wood, and wood drying. The goal of this laboratory "is to develop dated tree ring chronologies of the most important species in the region and to develop different aspects of dendrochronological research in cooperation with different research fields like archaeology, restoration, history, ethnology, and ecology." The pictures and explanations on dendrochronology found on this site are some of the best I've ever seen.


Lund University
Laboratory of Wood Anatomy and Dendrochronology

Located at Lund University in Sweden, the primary focus of research at this laboratory "...is devoted to dendrochronology - constructing reference chronologies on oak, pine and spruce for different regions of Sweden." The chronologies are later used for absolute dating of timber from archaeological excavations (settlements, etc.) and standing structures (houses, etc.). Their Home Page provides information about research personnel, research projects, and recent publications.


University of Melbourne
UniMelb Forest Dynamics Lab

Directed by Dr. Patrick Baker, this lab seeks to "understand how native forests develop, how they respond to disturbances and climate, and how this knowledge can inform better forest management." Currentprojects focus on dendroclimatic and dendroecological projects, including one that addrresses the divergence phenomenon. Their web site provide sinformation onpersonnel in the lab, current projects, a list of publications, and some excellent images!


University of Minnesota
Center for Dendrochronology

umn logo

The Center for Dendrochronology is based in the Department of Geography at the University of Minnesota. Led by faculty members Dr. Kurt Kipfmueller and Dr. Scott St. George, the Center has faculty and students conducting research in a variety of environments and on a number of topics, including disturbance ecology, fire climatology, water resources and natural hazards.

News stories about the laboratory:

U student's flood data project gets national attention


University of Missouri-Columbia
Tree-Ring Laboratory

Perhaps one of the most artistic web sites in dendrochronology, the Missouri Tree-Ring Laboratory web site is masterfully organized and a pleasure to browse. Links are supplied to learn about the facilities, the faculty and staff (including the effervescent Dr. Richard Guyette), current projects (and there are many), and recent publications. This laboratory is involved in everything from fire history to dendroarchaeology!


University of Montreal
Groupe de Recherche en Dendrochronologie Historique

The Research Group in Historical Dendrochronology (GRDH) is an official non-profit organization that began operation in January 2002. The organization is based at the Department of Anthropology of the University of Montreal, and brings together researchers who wish to advance the field of historical dendrochronology (dendroarchaeology) and the dating of historic and prehistoric sites in Quebec. The web pages, all in French, provide background information on archaeological dendrochronology, current projects, and services offered.


Mount Allison University
MAD Laboratory

Launched in Fall 2003, this laboratory is led by Colin Laroque who, along with his impressive crew, has put together a very entertaining and informative web site. For those of you (like me) who have no clue where Mount Allison University is, it's located in Sackville, New Brunswick, Canada. "The first priority of the MAD Lab is to establish extensive tree-ring chronologies in the region.  These chronologies will form the foundation of various projects, from researching annually-resolved proxy climatic records for the Atlantic region, to dating historic structures in Maritime Canada."


News stories about the laboratory:

  Mount Allison solves Titanic mystery for PBS - Arts & Entertainment


University of Nevada, Reno
Tree-Ring Laboratory

Dr. Franco Biondi heads this laboratory, along with Scotty Strachan, Kishor Waikul, and Peter Hartsough. This site contains information on the lab's current projects, the lab's emphasis on GIS, pictures of the lab facilities, and links to downloadable forms for skeleton plotting. Of particular interest is the lab's programming expertise, which has resulted already in significant new software for analyzing the climate/tree growth relationship.


University of North Carolina-Chapel Hill
Climate & Tree Ring Environmental Science Lab

The C-TRĒS research group, led by Dr. Erika Wise, uses dendrochronology to answer questions concerning pre-instrumental synoptic climatology, ocean-atmosphere oscillations, and water resources.  The geographical focus thus far has been on western North America, especially the Pacific Northwest and the Intermountain West. The lab facilities, renovated in 2014, include a custom-built measuring table, separate wood preparation and storage areas, standing work benches, and student research carrels.


University of North Carolina-Greensboro
Carolina Tree-Ring Science Laboratory

This laboratory was established by long-time tree-ring researcher Dr. Paul Knapp, who has published some important articles that concern tree-ring dating of western junipers and ponderosa pines all over the western U.S. with colleague Pete Soule from Appalachian State University. Begun in 2006, this lab has all the amenities: wood preparation, measurement, and crossdating. Paul states: "My observations over the past decade have led me to believe that tree-ring science is a great sub-discipline for physical geographers, with extensive, relevant, and timely applications that are often interdisciplinary."


University of Nottingham
Nottingham Tree-Ring Dating Laboratory

Nottingham Tree-Ring Dating Lab
Robert Howard and Alison Arnold lead this laboratory which has been one of the most prolific laboratories in all of Europe for dating historic structures over the past 30 years. Their web site gives a history of the laboratory, an introduction to tree-ring dating (especially for standing buildings), links to the many sites that this laboratory has dated, and they provide a bibliography of published books, academic papers, and general articles.

Pennsylvania State University
Vegetation Dynamics Laboratory

Part of the Department of Geography, this laboratory was initiated by Dr. Alan H. Taylor, who has conducted considerable tree-ring research on fire history and vegetation change. This site provides information on their research projects (fire history, climate reconstructions, vegetation change, and archaeology), internship possibilities, and also a virtual tour of the laboratory.


Université du Québec
Laboratoire de Dendroécologie

Located at the Lake Duparquet Research and Teaching Forest and directed by Igor Drobyshev, this educational and research laboratory teaches dendrochronology and dendroecology to students and researchers at the Université du Québec en Abitibi-Témiscamingue and the Université du Québec à Montréal. Links are provided showing recent upcoming events, ongoing collaborative projects, equipment available at the laboratory, links to other sites, and a special link to the First Dendroweek FERLD.


University of Regina
Tree-Ring Laboratory

Established in 1998, this multidimensional laboratory has its processing and measuring facility located in the Department of Geography while the researchers and data processing lab are based at the Prairie Adaptation Research Collaborative (PARC), a climate change research center. Personnel have focused on developing a network of 60 tree-ring chronologies encompassing the island forests of eastern Montana, and the foothills and boreal forests of Alberta, Saskatchewan and the Northwest Territories. Their web site provides information on theses, personnel (past and current), projects, presentations, and sites sampled.


University of Southern Mississippi
Dendron Lab

Directed by Dr. Grant Harley of the Department of Geography and Geology, this lab focuses on Quaternary landscape dynamics and paleoenvironmental reconstruction. They use a variety of research methods, tools, and techniques to investigate the spatiotemporal variability of landscape-scale vegetation dynamics. This smartly-designed web site features the personnel of the lab (including graduate students), research projects underway, laboratory news, and lists of equipment.


University of St. Andrews
Tree-Ring Laboratory

Dr. Rob Wilson of the School of Geography & Geosciences now has a formal laboratory where the "research foci are varied - from reconstructing past climate, dating historical structures and undertaking ecological analysis. Although tree rings are our proxy focus, research is also undertaken using historical, mollusc and coral archives." At this site, you'll find links to the lab's staff and students, information on undergraduate projects, links to collaborating individuals, and an extensive publications list (with PDF links).


Swedish Agricultural University Alnarp
Dendrochronological Laboratory

The laboratory here was set up in 1997, and consists of the two well-known dendroecologists Igor Drobyshev and Matts Niklasson. The lab works mainly in southern Scandinavia and central-eastern Europe, and focuses on dendrochronology, dendroecology, forest ecology, forest history, and past climate variability, with links to biodiversity and conservation. This site provides information on master projects, research programs, publications, news, links, staff and contact information, and the First Dendroweek FERLD.


Swiss Federal Institute, Birmensdorf
The Swiss Federal Institute for Forest, Snow and Landscape Research (WSL)

The WSL, located in Birmensdorf, Switzerland, is home to many dendrochronologists, including Drs. Fritz H. Schweingruber, Otto Bräker, Paolo Cherubini, Klaus Felix Kaiser, and many others. These web pages are multilingual, and provide information about the main topics of research, a full listing of its staff, recent publications, and even a separate page for radiodensitometry! These pages are a wealth of information concerning dendrochronology, all at your finger tips.

News stories about the WSL:

Drought affects Mediterranean truffle harvest
Climate in northern Europe reconstructed for the past 2,000 years: Cooling trend calculated precisely


The University of Tennessee
Laboratory of Tree-Ring Science

This laboratory has been conducting research in dendrochronology for nearly 15 years. Directed by Dr. Henri D. Grissino-Mayer, the lab consists of an Associate Director (Dr. Sally Horn), six graduate students (currently as of 2014), and several undergraduates. From time to time, we host visitors form other departments as well as international scholars. The web site contains detailed information on their current and completed projects, the lab's facilities, and its impressive amount of equipment. The lab specializes in conducting research in fire history, climate reconstructions, and archaeological investigations.

Current Projects of the LTRS
Equipment of the LTRS
Teaching Dendro at the LTRS
Facilities of the LTRS
Awards for the LTRS

News stories about the LTRS:

Tennessee schools need to teach geography better  -- The Tennessean
The Brilliance of a Stradivari Violin Might Rest Within Its Wood -- New York Times
After the flames, ‘mountain tough’ Gatlinburg looks to the future -- Washington Post
Gatlinburg’s Inferno: Why It Started, How It Spread, and What Needs to Happen Next -- Knoxville Mercury
'Gatlinburg was made to burn,' professor says -- CNN International
Tennessee college professor predicted Gatlinburg wildfire: Town was ‘made to burn’  -- WNCN
UT Geography Expert: Though Tragic, Gatlinburg Fire was ‘A Safe Prediction’ -- Winchester Herald Chronicle
University Professor Predicted Gatlinburg Wildfire for Years -- FireFighter Nation
Gatlinburg Wildfires Cause 3 Deaths, Hundreds Displaced -- Daily Beacon
University of Tennessee Professor Predicted Gatlinburg Fire for Years  -- Knoxville News Sentinel
Maps at McClung Museum Offer Glimpse into History -- Knoxville News Sentinel
Researchers Use Tree-Ring Science To Study Area Log Cabins -- Watauga Online
Lord of the Rings -- Low Country Weekly
The Bell Tolls for a Tough Old Tree -- Albuquerque Journal
Death of Yoda the 650-Year-Old Tree Tells Tale of Southwest Drought -- NBC News
Shortleaf pine declining without fire in the Smokies -- Knoxville News Sentinel
Without fire, No Name Key could lose its pine forests -- Keynews.com
Dendroarchaeology Expert to Talk Tree-Ring Dating and Historic Structures -- University of Wisconsin-Platteville, University News
The Longest Measure of Drought: 21 Centuries of Rainfall in New Mexico -- NYTimes.com
Timbers from Dam Hold Record of Past -- Fredericksburg Free-Lance Star
Dire Drought Ahead, May Lead to Massive Tree Death -- AAAS EurekAlert
Trees Tell the History of Fire -- National Park Service
Reading history - one ring at a time -- Indiana State University Newsroom
UF, UT Researchers Join Forces to Bring Tree-Ring Dating Technology to Heart of Southeast -- University of Florida News
Dr. Grissino-Mayer to Speak -- Historic City News
UT Pre-Game Faculty Showcase Focuses on Tree Ring Science, Wildfire Predictions in Smokies
UT researchers' work reveals 220-year hurricane history -- Tennessee Today
Tree rings provide a 200-year-old hurricane record -- NSF News
Tree rings could settle global warming hurricane debate -- MongaBay.com
Every tree has a story to tell -- Christian Science Monitor
Did "Little Ice Age" Create Stradivarius Violins' Famous Tone? -- National Geographic News
Does climate explain prized violins' tone? -- MSNBC
£10m violin 'the real thing' -- BBC News
Secret ingredient in Stradivari may be heaven sent -- USA Today
Chill might be Stradivarius secret -- London Free Press
Validity of Stradivari examined -- University of Tennessee Daily Beacon
Climatologist: Georgia unprepared for drought -- Augusta Chronicle
Specialist pushing deliberate burning -- Augusta Chronicle

University of Toronto-Mississauga
Northern Paleoenvironments Laboratory

Established by Dr. Trevor Porter in 2015, the Northern Paleoenvironments Lab at UTM specializes in reconstructing paleoclimate and environmental change in northern regions of Canada using natural proxies such as tree-ring width and tree-ring geochemistry (Hg and stable isotopes). Other proxies of interest include stable water isotopes in permafrost and fossil leaf waxes in the sedimentary record.

The University of Victoria
Tree-Ring Laboratory

Headed by Dr. Dan Smith in the Department of Geography at the University of Victoria in British Columbia, Canada, researchers at this laboratory have investigated the past climate of the Canadian Rockies during the last 1,000 years, especially the impact of the Little Ice Age (LIA). Other projects include the dendrochronological dating of LIA glacier advances, and the investigation of snow avalanche impacts.


Vytautas Magnus University
Group of Dendroclimatology and Radiometrics

This web site will inform you of a laboratory that has a long tradition in dendrochronology. Many of us know about the famous Teodoras Bitvinskas -- this research group continues his legacy in Kaunas, Lithuania. The group consists of Rutile Pukiene, Adomas Vitas, Jonas Karpavicius, Algimantas Daukantas, Emilija Podžarova, and Elvyra Šimkūnienė. These web pages describe their current projects, their history, and their activities. Pages are also provided with important links and for contact information.


Wageningen University
Dendrolab FEM

Established in 2005 by Dr. Ute Sass-Klaassen the Forest Ecology and Forest Management Group, the lab focuses on Dendrochronology and Quantitative Wood Anatomy, touching everything from Dendroclimatology, Tropical Dendrochronology, Dating and Dendroprovenancing, Wood Science, and Dendrobiology. Available are links to publications by year, information on facilities for sample preparation and measuring, personnel, recent news items, and information on their educational outreach.


West Virginia University
Montane Forest Dynamics Lab

Directed by Dr. Amy Hessl, this lab specializes on the "on the interaction between ecosystem processes, climate variability and human activities in forested systems." Particularly interesting is the research by Dr. Hessl and her colleagues on the climate dynamics during the time of the Mongul Empire using ancient trees and remnant wood found on lava flows in Mongolia. The web site provides information on lab personnel, publications, research projects, and relevant courses taught by Dr. Hessl.


The University of Western Ontario
Dendrogeomorphology Laboratory

Headed by Dr. Brian Luckman, the dendrogeomorphology laboratory has been one of the most active and productive laboratories of its kind anywhere in the world. These pages provide a brief history of this facility, a summary of the current research bring conducted, and information on their facilities and graduate students. A photo gallery adds a personal touch to this laboratory and highlights the many locations where they are conducting their research.

News stories about the laboratory:

 Unusual tree growth patterns in the Southern Hemisphere linked to climate change


University of Western Washington
Huxley Tree-Ring Laboratory

Led By Dr. Andy Bunn,this lab does tree-ring research projects around the globe and has created a broad collection of chronologies spanning the Pacific Northwest region as well and the Canadian and Siberian boreal forest. The lab strives towards an interdisciplinary research based educational environment with a focus on both graduate and undergraduate research. This lab is also the home of the the Dendrochronology Program Library in R (dplR), an open-source software package for analyzing tree rings.


University of Wisconsin–Parkside
Biogeography and Dendrochronology Lab

This lab was developed in 2000 by Dr. Joy Wolf. She and her students use dendrochronology to study fire, climate variability and population dynamics on Midwestern oak savanna and conifer stands. Together, they designed a unique method in measuring rings in extremely large specimens. Her lab includes state-of-the-art equipment to conduct dendrochronological analysis.


University of Wisconsin-Platteville
Tree-Ring, Earth, and Environmental Sciences Laboratory

 Directed by Dr. Evan Larson, the TREES lab conducts dendroecological analyses as well as analyses in geomorphic processes and charcoal analyses. ­ Dendrochronological research conducted by TREES faculty and staff include studies of past climate variability, forest disturbance and development, invasive species impacts, building dates of historical structure, and the effects of human activities on forest dynamics.


College of Wooster
Tree Ring Laboratory

Directed by Greg Wiles, this laboratory focuses primarily on tree-ring research in Alaska (climate change and dendroglaciology) and Ohio (climate studies and dating historical structures). This lab also specializes in student-based research, with many senior projects highlighted. The lab's web site has links to current projects, facilities, a photo gallery, personnel, and publications.


Universidad Zaragoza

The Dendroteam research group consists of professors and researchers from the Department of Geography and Regional Planning at the University of Zaragoza, Department of Ecology, University of Alicante, and the Biotechnical Faculty of the University of Ljubljana. The research is focused on the analysis of spatial and temporal patterns of growth forests in relation to climate.


Major Laboratories at Other Institutions


Laboratory of Dendrochronology
Rheinisches Landesmuseum Trier

Since 1970, wood samples from archeological excavations and architectural historic investigations from Rhineland-Palatinate and beyond have been analyzed regarding their tree-ring characteristics. In addition to these application-oriented dating, a further focus of the scientific work is on the basic research in dendrochronology, particularly regarding the creation of supraregional long-term chronologies (e.g. Central European oak chronology by Ernst Hollstein). On their web site, you can view a list of their externsive puiblications, learn some basics about dendrochronology, learn about archaeological preservation, and view upcoming events.


Laboratorio Dendrocronologia
Geologi Associati

This laboratory has a long history in dendrochronology, led by Dr. Rosanna Fantucci, as part of the Geology Associates group. This web site provides considerable background on techniques and principles in dendrochronology with excellent photos describing the process of tree-ring dating. Separate web pages explain their research on dendroecology, dendroseismology (earthquakes), dendrovolcanology, dendrohydrology, and even dendroastronomy!

Wasatch Dendroclimatology Research Group

This group combines the expertise from interrelated fields (dendrochronology, geography, geology, tree physiology, climatology, and anthropology) and multiple institutions (Utah State University, US Forest Service, Brigham Young University, Columbia University, NOAA-Western Water Assessment) to examine the climate record of the past ~2000 years for northern Utah.


English Heritage - Centre for Archaeology

This laboratory is a part of the English Heritage's Archaeology Division, and has funded numerous archaeological tree-ring projects aimed at elucidating the construction history of structures such as farmhouses, manors, and churches. A very informative link.


Institute of Archaeology, University College London

Dr. Martin Bridge has been conducting tree-ring research in Great Britain since 1979, and is currently involved in the dating of many structures throughout the English countryside. These web pages provide some information on how the dating is done on these structures, a list of his publications, and information on the ship Mary Rose.


Institute of Environmental Physics

This Radiocarbon Laboratory at the Universität Heidelberg in Heidelberg, Germany, is part of the Institute for Environmental Physics. Dr. Bernd Kromer is in charge of this laboratory, and he and his research have been instrumental for developing and extending the radiocarbon calibration time scale. Dr. Kromer has worked extensively with the late Dr. Bernd Becker. This site provides detailed information about their research, and also provides a list of their publications.


Laboratory for Paleoclimatology and Climatology

"The LPC is a laboratory of the Department of Geography at the University of Ottawa (Ottawa, Ontario, Canada). We are involved in the analysis and modelling of climate changes and their impacts on ecosystems. These pages describe the people working in the laboratory, the projects in which we are involved, and the facilities available for research on environmental change. The emphasis of our work is the analysis of the past (the fossil record) as a way to better understand the present and the future."


Micha Beuting, Musical Instruments and Art Objects

Dr. Beuting's special fields are the microscopic identification of wood species and the age determination of musical instruments and art objects by analyzing the tree-ring structure. This non-destructive scientific method addresses itself as a service to museums, collectors, insurance agencies, auction houses, dealers, and luthiers. Dr. Beuting has worked closely with Dr. Peter Klein and his dissertation research concerned the wood structure and dendrochronological analyses of musical instruments.


Lone Pine Research

Created in 2000 by John C. King, this consulting firm conducts research for public agencies and environmental engineering firms, and John is a contributing author on several scientific publications and technical reports. Recent projects have focused on riparian forest dynamics and forest disturbance events. John's prolific research has involved assembling over 150 tree-ring chronologies, including 28 records greater than 1000 years and 51 records archived with the International Tree-Ring Data Bank.


Ökologie Büro Hofmann

Frieder Hofmann notes that the special topic of this laboratory is dedicated to environmental pollution issues and forensic dendrochronology using chemical and isotopic fingerprinting methods. This lab is also involved with  monitoring emission effect by means of biological and technical monitoring procedures, the development of pollution histories from tree-ring data, and integrated environmental monitoring.


Oxford Dendrochronology Laboratory

This laboratory, operated by Daniel H. Miles and Martin Bridge, is an independent tree-ring dating facility that maintains close ties with the Research Laboratory for Archaeology and the History of Art, Oxford University (see below). Their research concentrates primarily on the dating and analysis of standing timber structures, although other projects have involved Medieval wet wood, development of a miniature core extraction system, and collection of juniper samples from the Sierra Nevada of California.


Oxford Tree-Ring Laboratory

The Oxford Tree-Ring Laboratory was formed in 2010 by Michael Worthington and Jane Seiter to provide cutting-edge dendrochronological services to archaeologists, architectural historians, art historians, cultural resource managers, and private house owners. Although they specialize in the tree-ring dating of standing buildings, they also provide dates for archaeological artifacts, boats, wooden panel paintings, and live trees. They accept private and commercial commissions throughout the USA, the UK, continental Europe, and the Caribbean.


Paleofloods in the Red River Basin

"The Geological Survey of Canada (GSC) and the Manitoba Geological Survey (MGS) have initiated a large, multi-disciplinary research program on flood hazards in the Red River Basin. This project will develop an accurate record of high magnitude floods in the Red River over the last 500 years and determine the impact of long-term climatic and environmental changes on flood frequency and magnitude." Be sure to visit their "Accomplishments" which provides detailed information on their dendrochronology laboratory and the results to date.


Pressler GmbH

The laboratory at Pressler GmbH has more than 25 years of experience in Dendrochronology. Currently, nearly 20,000 samples from Central Europe have been analyzed, evaluated, and dated. Chronologies from Germany, France, the Benelux countries, Scandinavia, and the Baltic countries are at the disposal of the laboratory. Work at the laboratory is accompanied and supported by longtime experience and work in the field of building research and recently in the field of archaeology as well. All disciplines complement each other in the company in an ideal way.


Rocky Mountain Tree-Ring Research, Inc.

Peter Brown, one of the most active scientists in dendrochronology, began this non-profit company in 1997, having received his formal training at the Laboratory of Tree-Ring Research. He is very active in reconstructions of fire history, and has recently begun research in climate reconstructions and the development of ecosystem management plans. These pages provide information on RMTRR, Inc., and are well-organized and easy to navigate.

The OLDLIST database: oldest individual trees for each species


Tree-Ring Services

This independent company is located in Berkshire, United Kingdom, and offers a tree-ring dating and dendroclimatological analysis for companies, professional archaeologists, historians and individuals alike. The firm is operated by Dr. Andy Moir, who provides "tree-ring analysis of live trees and archaeological timbers". The site contains an introduction to dendrochronology, a list of tree species (with useful photographs) suitable for tree-ring dating (in the United Kingdom), and a listing of services and pricing information.


Links to Personal Home Pages

Marc D. Abrams, School of Forest Resources, Penn State University, Pennsylvania, USA
Craig Allen
, Jemez Mountains Field Station, Los Alamos, New Mexico, USA
Kevin Anchukaitis
, School of Geography and Development, University of Arizona, USA
Fred Baes, III, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
Michael G.L. Baillie
, Queen's University of Belfast, United Kingdom
David J. Barclay, Department of Geology, State University of New York College at Cortland, USA
Bruce Bauer, National Centers for Environmenal Information, Asheville, North Carolina, USA
Yves Bégin
, Centre d'études nordiques, Université Laval, Canada
Yves Bergeron
, Groupe de recherche en ecologie forestiere, Université du Québec a Montreal, Canada
Franco Biondi
, Department of Geography, University of Nevada - Reno, USA
Peter Brewer, Laboratory of Tree-Ring Research, The University of Arizona, USA
Keith Briffa, Climatic Research Unit, University of East Anglia, United Kingdom
Peter M. Brown, Rocky Mountain Tree-Ring Research, Ft. Collins, Colorado, USA
Brendan Buckley, Lamont-Doherty Earth Observatory, Columbia University, USA
William M. Buhay
, Department of Geography, University of Winnipeg, Canada
Andy Bunn, Department of Environmental Sciences, Western Washington University, USA
David Butler
, Department of Geography, Texas State University, USA
Marco Carrer, Treeline Ecology Research Unit, Università degli Studi di Padova, Italy
Paolo Cherubini
, Swiss Federal Institute for Forest, Snow and Landscape Research, Switzerland
Malcolm Cleaveland
, Department of Geography, University of Arkansas, USA
Ed Cook, Lamont-Doherty Earth Observatory, Columbia University, USA
Adam Csank, Laboratory of Tree-Ring Research, The University of Arizona, USA
Katarina Cufar, Dendrochronological Laboratory, University of Ljubljana, Slovenia
Rosanne D'Arrigo, Lamont-Doherty Earth Observatory, Columbia University, USA
Nicole K. Davi, Lamont-Doherty Earth Observatory, Columbia University, USA
Andrew De Volder, Quaternary Studies Program, Northern Arizona University, USA
David R. DeWalle
, School of Forest Resources, The Pennsylvania State University, USA
Michèle Kaennel Dobbertin
, Swiss Federal Institute for Forestry, Birmensdorf, Switzerland
Jim Ehleringer, Department of Biology, University of Utah, USA
Michael N. Evans, Department of Geology, The University of Maryland, USA
Donald A. Falk, Laboratory of Tree-Ring Research, The University of Arizona, USA
Calvin Farris, Laboratory of Tree-Ring Research, The University of Arizona, USA
Xiahong Feng, Department of Earth Sciences, Dartmouth College, USA
Louise Filion
, Département de géographie, Université Laval, Canada
Harold C. Fritts, Laboratory of Tree-Ring Research, The University of Arizona, USA
Gregg Garfin
, Institute of the Environment, The University of Arizona, USA
Holger Gärtner, Swiss Federal Institute for Forest, Snow and Landscape Research, Switzerland
Jeffrey H. Gove, Northeastern Forest Experiment Station, Durham, NH, USA
John Grattan
, Institute of Geography and Earth Sciences, Aberystwyth University, United Kingdom
Carol Griggs, Cornell Tree-Ring Laboratory, Cornell University, USA
Henri D. Grissino-Mayer, Department of Geography, The University of Tennessee, USA
Christine Hallman, Laboratory of Tree-Ring Research, The University of Arizona, USA
Justin L. Hart, Department of Geography, University of Alabama, USA
Katie Hirschboeck, Laboratory of Tree-Ring Research, The University of Arizona, USA
Frieder Hofmann
, Ökologiebüro, TIEM Integrated Environmental Monitoring, Germany
Sally Horn
, Department of Geography, University of Tennessee, Knoxville, Tennessee, USA
Laurie Huckaby, USDA Forest Service, Rocky Mountain Research Station
Gordon Jacoby, Lamont-Doherty Earth Observatory, Columbia University, USA
Glenn Juday, Department of Forest Ecology, University of Alaska - Fairbanks, USA
Margot W. Kaye, School of Forest Resources, The Pennsylvania State University, USA
Cornelia Krause, Laboratoire d'écologie végétale - Université du Québec à Chicoutimi - Canada
Barbara L. Lachenbruch, Department of Wood Science and Engineering, Oregon State University, USA
Peter Ian Kuniholm, Laboratory of Tree-Ring Research, The University of Arizona, USA
Lisa LaForest, Department of Ecology and Evolutionary Biology, University of Tennessee, USA
Colin Laroque
, Mount Allison University, Sackville, New Brunswick, Canada
Steven W. Leavitt, Laboratory of Tree-Ring Research, The University of Arizona, Tucson, USA
Ken Lertzman
, Resource and Environmental Management, Simon Fraser University, Canada
Andrea H. Lloyd, Department of Biology, Middlebury College, Vermont, USA
Brian Luckman
, Department of Geography, University of Western Ontario, Canada
Glen MacDonald
, Department of Geography, University of California - Los Angeles, USA
Sturt Manning, Cornell Tree-Ring Laboratory, Cornell University, USA
Ellis Margolis, Laboratory of Tree-Ring Research, The University of Arizona, Tucson, USA
Jesus Julio Camarero Martinez, ARAID-Instituto Pirenaico de Ecología (CSIC), Zaragoza, Spain
Brian C. McCarthy, Dept. of Environmental and Plant Biology, Ohio University, Athens, USA
Dave M. Meko, Laboratory of Tree-Ring Research, The University of Arizona, Tucson, USA
Renzo Motta
, Dipartimento di Agronomia, Selvicoltura e Gestione del Territorio, Università degli Studi di Torino, Italy
Martin Munro, Laboratory of Tree-Ring Research, The University of Arizona, Tucson, USA
Steve Norman, U.S. Forest Service, Southern Research Station, Asheville, North Carolina
Momchil Panayotov, Dendrochronology Laboratory, University of Forestry, Bulgaria
Irina P. Panyushkina, Laboratory of Tree-Ring Research, The University of Arizona, Tucson, USA
Serge Payette, Centre d'études nordiques, Université Laval, Canada
Charlotte Pearson, Laboratory of Tree-Ring Research, The University of Arizona, Tucson, USA
Neil Pederson
, Harvard Forest, Harvard University, USA
Shelly Rayback, Department of Geography, University of Vermont, USA
John Sakulich, Department of Biology, Regis University, USA
Matt Salzer, Laboratory of Tree-Ring Research, The University of Arizona, USA
Paul Sheppard, Laboratory of Tree-Ring Research, The University of Arizona, USA
Dan Smith, Tree-Ring Laboratory, The University of Victoria, Canada
R. Scott St. George, Department of Geography, University of Minnesota, USA
Dave Stahle
, Department of Geosciences, University of Arkansas, USA
Tom Swetnam
, Laboratory of Tree-Ring Research, The University of Arizona, USA
Jacques Tardif, Centre for Forest Interdisciplinary Research, University of Winnipeg, Canada
Alan Taylor, Department of Geography, The Pennsylvania State University, USA
Ramzi Touchan
, Laboratory of Tree-Ring Research, The University of Arizona, USA
Ronald H. Towner
, Laboratory of Tree-Ring Research, The University of Arizona, USA
Cathy Tyers, Sheffield Dendrochronology Laboratory, Sheffield, United Kingdom
Saskia van de Gevel, Department of Geography and Planning, Appalachian State University, USA
Barbara Vokal, Department of Physical and Organic Chemistry, Jozef Stefan Institute, Ljubljana, Slovenia
Tomasz Wazny, Cornell Tree-Ring Laboratory, Cornell University, USA
Carola Wenk, Department of Computer Sciences, Tulane University, USA
Greg Wiles
, Department of Geology, The College of Wooster, USA
Erika Wise, Department of Geography, University of North Carolina-Chapel Hill, USA
Connie Woodhouse, School of Geography and Development, University of Arizona, USA
Pentti Zetterberg, Karelian Institute, University of Joensuu, Joensuu, Finland

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