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A group of INSTAAR Directorate members, February 2005. Photo: T. Pfeffer (INSTAAR). |
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David M. Anderson
Fellow of INSTAAR; Adjoint Associate Professor of Geological Sciences, Univ. of Colorado at Boulder; Director, World Data Center for Paleoclimatology and Chief of Paleoclimatology Branch of the National Climatic Data Center, United States Department of Commerce, National Oceanographic and Atmospheric Administration.
PhD: 1991, Brown University.
Specialty: Paleoceanography, marine geology, quantitative paleoenvironmental reconstruction.
Research Interests: Research on the marine geologic record of
climate change, with emphasis on quantitative estimates of past ocean
temperature and ocean upwelling/productivity. Projects include reconstructions
of ocean carbonate ion concentration related to the ocean's role in the
global carbon cycle, reconstruction of long term trends in the Asian
summer monsoon, and projects to reconstruct the coastal ocean currents
in the eastern Pacific and their influence of the climates of North and
South America.
Robert S. Anderson
Fellow of INSTAAR; Professor of Geological Sciences, Univ. of Colorado at Boulder.
PhD: 1986, University of Washington.
Specialty: Geomorphology, mechanics and timing of landscape evolution.
Research Interests: My academic interests focus on the processes
that drive landscape evolution, studied through monitoring of modern
systems, numerical modeling of these systems constrained by modern rates,
and establishment of a chronology that constrains the longer term pace
of landscape evolution. Recent research has focused on alpine landscapes,
and the glaciers and rivers that carve them.
Suzanne Prestrud Anderson
Research Scientist of INSTAAR; Assistant Professor of Geography.
PhD: 1995, University of California, Berkeley.
Specialty: Geomorphology, weathering, hydrology, glaciology.
Research Interests: Field-based mechanistic understanding of the chemical and physical processes that shape the Earth's surface and control chemical denudation rates. Current focuses including studying the effect of glaciers on chemical weathering rates and the global carbon cycle, the linkage between glacier dynamics and subglacial hydrology, glacier outburst floods (jökulhlaups), and catchment-scale hydrology and hydrochemistry. Specializes in collection of detailed field observations to constrain models of geomorphic systems.
John T. Andrews
Fellow of INSTAAR; Professor Emeritus of Geological Sciences, Univ. of Colorado at Boulder
PhD 1965; DSc 1978, University of Nottingham, UK.
Specialty: Glacial and marine sedimentology and chronologies, high-resolution marine studies.
Research Interests: Late Quaternary history of ice sheet/ocean interactions and abrupt climate change during the last 10,000 to 40,000 yrs. Identification of iceberg rafting events. Detailed study of the paleoceanography of the East Greenland and Iceland margins on Holocene time scales.
John C. Behrendt
Fellow of INSTAAR.
PhD: 1961, University of Wisconsin, Madison.
Specialty: Antarctic and marine geophysics, glaciology.
Research Interests: Presently studying lithospheric controls on the behavior of the West Antarctic Ice Sheet. Also investigating the tectonics of the West Antarctic rift system including the continental margin. Deep crustal seismic investigations of continental rifts and rifted continental margins. Charleston, S.C. earthquake studies. Atlantic continental margins of U.S. and West Africa. Use of gravity and aeromagnetic surveys to investigate continental tectonics.
William D. Bowman
Fellow and Director of the Mountain Research Station of INSTAAR; Professor of Ecology and Evolutionary Biology, Univ. of Colorado at Boulder.
PhD: 1987, Duke University.
Specialty: Plant ecology.
Research Interests: Biotic control over community and ecosystem properties, resource use by plants, alpine ecology.
T. Nelson Caine (Fellow Emeritus)
Fellow Emeritus of INSTAAR; Professor Emeritus of Geography, Univ. of Colorado at Boulder.
PhD: 1966, Australian National University.
Specialty: Geomorphology and hydrology.
Research Interests: Present-day processes of erosion and sedimentation in mountain environments. This includes studies of snow hydrology, streamflow generation, and sediment transport. It incorporates work on periglacial processes, mountain permafrost, and hillslope processes.
Mark B. Dyurgerov
Fellow of INSTAAR; Senior Scientist and Professor of Institute of Geography, Russian Academy of Science.
PhD: 1974, Moscow State University, Doctor of Science, 1990, Institute of Geography, Russian Academy of Sciences.
Specialty: Glaciology and terrestrial hydrology.
Research Interests: Mountain glaciers and ice caps in relation to climate change and the global-water cycle, glacier mass balance monitoring, spatial and temporal distribution of glacier properties, measurement methods for glacier mass balance and runoff, all aspects of glacier regime and meltwater production worldwide, with particular emphasis in the Arctic, Alaska, and Central Asia.
Detlev Helmig
Fellow and Associate Research Professor of INSTAAR, Univ. of Colorado at Boulder.
Ph.D. 1989, University of Duisburg, Germany.
Specialty: Surface-Atmosphere Interactions, Atmospheric Chemistry and Transport, Atmospheric Measurement Techniques, Polar Atmospheric Chemistry, Oceanic Gas Fluxes.
Research Interests: Biosphere-atmosphere trace gas fluxes and their environmental controls, in particular emissions of biogenic volatile organic compounds (BVOC) from vegetation; atmospheric transport; deposition processes and atmospheric chemistry; polar snow-atmosphere gas exchange processes; development, development and application of analytical tools for field research; urban atmospheres and hazardous pollution; intercontinental atmospheric transport. Current capabilities include atmospheric sampling and monitoring instrumentation, gas chromatography, gas chromatography/mass spectrometry, field methods for BVOC emission studies, eddy correlation techniques, meteorological and chemical instrumentation for flux measurements and boundary layer profiling from tethered balloon platforms.
John F. Hoffecker
Fellow of INSTAAR.
PhD: 1986, University of Chicago.
Specialty: Archaeology and human paleoecology
Research Interests: The evolution of human adaptations to cold environments during the Quaternary period. Studies of archaeological sites in Eastern Europe and Alaska. Currently investigating the earliest modern human sites in Russia and the dispersal of modern humans into Eastern Europe (and related disappearance of local Neanderthals). Special focus on the role of technology in the dispersal process. Current research also includes interdisciplinary study of coastal middens in northern Alaska and the origins of modern Inuit culture with a focus on technological innovation.
John T. Hollin (Fellow Emeritus)
Fellow Emeritus of INSTAAR; Research Scientist Emeritus of University of Colorado.
PhD: 1972, Princeton University.
Specialty: Glaciology, Quaternary especially last interglacial history.
Research Interests: Glacier and ice-sheet profiles, empirical and theoretical. Sea-level evidence for Antarctic melting and/or surging. Gondwana ice surges and Carboniferous coal cyclothems.
Chris Jenkins
Senior Research Scientist of INSTAAR (not a Directorate Member), Univ. of Colorado at Boulder.
Ph.D. 1979, Cambridge.
Anne E. Jennings
Fellow of INSTAAR; Assistant Professor of Geological Sciences, Univ. of Colorado.
PhD: 1989, University of Colorado at Boulder.
Specialty: Paleoceanography, glacial history, foraminifera.
Research Interests: Paleoceanography, glacial history, and climate change in high latitude regions, specifically Greenland, Baffin Island, Iceland, and Antarctica. Specializes in using foraminifera for interpreting paleoenvironments and chronology on high-latitude continental shelves.
Scott J. Lehman
Fellow and Research Professor of INSTAAR.
PhD: 1989, University of Colorado at Boulder.
Specialty: Paleoclimatology, paleoceanography, radiocarbon research.
Research Interests:The role of the oceans in climate change, cycling of heat, fresh water, and carbon by the oceans, paleotemperature applications of marine biomarkers and amino acids, dynamics and consequences of abrupt climate change, radiocarbon calibration, bomb 14C as a tracer in the recent carbon cycle.
Wesley E. LeMasurier
Fellow of INSTAAR, Professor Emeritus of Geology, University of Colorado at Denver.
PhD: 1965, Stanford University.
Specialty: Volcanology and igneous petrology.
William F. Manley
Fellow of INSTAAR.
PhD: 1995, University of Colorado at Boulder.
Specialty: Quaternary Geology, GIS, Paleoclimatology, and High-Latitude Environmental Change.
Research Interests: Pleistocene glacier fluctuations and paleoclimate forcing for Alaska, through field research and data analysis, including spatial analysis with GIS. Spatial analysis of modern Alaskan glaciers, including links between equilibrium line altitudes and climate. Icefield archeology and remote sensing. Arctic coastal erosion and flooding.
Tom Marchitto
Research Scientist of INSTAAR; Assistant Professor of Geological Sciences, Univ. of Colorado at Boulder.
PhD: 1999, MIT/WHOI Joint Program.
Specialty: Quaternary paleoclimate, paleoceanography, and past ocean chemistry.
Research Interests: Rapid climate change during the late Quaternary, particularly large-scale changes in ocean circulation and chemistry. Specializing in the use the calcitic foraminifera as recorders of physical and chemical properties of seawater, including temperature, salinity, the isotopic composition of dissolved inorganic carbon, and the concentrations of various nutrients.
Vera Markgraf (Fellow Emeritus)
Fellow Emeritus of INSTAAR; Research Professor of Geography, Univ. of Colorado at Boulder.
PhD: 1968, Bern, Switzerland.
Specialty: South America and Southern Hemisphere paleoclimates and inter-hemispheric paleoclimate correlations.
Research Interests: High resolution, multi-proxy paleoclimate analysis, using pollen (vegetation history), charcoal (fire history), and stable isotopes (temperature history) from late-Quaternary lake and bog sediments in southern South America, in collaboration with J. W. C. White and E. Pendall (both INSTAAR) and INSTAAR graduate students. International cooperative research: Patagonian Lake Drilling Project (PATO), focusing on recovery and multi-proxy analysis of sediment cores from large, extra-Andean lakes. Editor of volume "Interhemispheric Climate Linkages", published in 2000 by Academic Press, representing the outcome of the "Pole-Equator-Pole Paleoclimates of the Americas" (PEP 1) IGBP-PAGES research initiative, that I previously chaired. Co-editor with H.F. Diaz of the volume "El Niño and the Southern Oscillation: Multiscale Variability and Global and Regional Impacts", published in 2000 by Cambridge University Press.
Mark F. Meier (Fellow Emeritus)
Fellow Emeritus of INSTAAR; Professor Emeritus of Geological Sciences, Univ. of Colorado at Boulder.
PhD: 1957, California Institute of Technology.
Specialty: Glaciology, Global Change
Research Interests: Glaciers in the Earth system, causes and projections of sea-level change, iceberg calving, surging and calving glaciers, climate change, and global change in general.
Diane M. McKnight
Fellow of INSTAAR; Professor of Civil, Environmental and Architectural Engineering, Univ. of Colorado at Boulder.
PhD: 1979, Massachusetts Institute of Technology.
Specialty: Limnology, biogeochemistry of lakes and streams.
Research Interests: Research focuses on interactions between hydrologic, chemical and biological processes in controlling the dynamics in aquatic ecosystems. This research is carried out through field-scale experiments, modeling, and laboratory characterization of natural substrates. Main field sites are located in the Rocky Mountains and in the Transantarctic Mountains, and include pristine and stressed ecosystems. Conducts research focusing on interactions between freshwater biota, trace metals, and natural organic material in diverse freshwater environments, including lakes and streams in the Colorado Rocky Mountains, and in the McMurdo Dry Valleys in Antarctica. Develops interactions with state and local groups involved in mine drainage and watershed issues in the Rocky Mountains. A co-principal investigator in the McMurdo Dry Valley LTER and in the Niwot Ridge LTER.
Gifford H. Miller
Fellow of INSTAAR; Professor of Geological Sciences, Univ. of Colorado at Boulder.
PhD: 1975, University of Colorado at Boulder.
Specialty: Quaternary stratigraphy, geochronology, and paleoclimatology.
Research Interests: My primary scholarly interests focus on gaining an improved understanding of how the physical earth system operates. Toward this end, I am specifically interested in using the Quaternary as a means to reconstruct the coupled ocean/atmospheric/ice climate system. By reconstructing past environmental changes it is possible to get a better understanding of the rates and magnitude of natural climate variability, and the various feedback mechanisms in the global climate system. I am also interested in the role of humans in the modification of landscapes and ecosystem on Quaternary timescales.
Diana R. Nemergut
Research Scientist of INSTAAR; Assistant Professor of Environmental Studies, Univ. of Colorado at Boulder.
PhD, 2004, University of Colorado, Boulder.
Specialty: Microbial ecology and evolution.
Research Interests: Horizontal gene transfer in microbial communities. I am currently looking at the role of integrons in genetic exchange in soil and aquatic environments. I am interested in the types of genes that can be exchanged via integrons, as well as the phylogenetic diversity of the organisms that contain integrons.
Astrid E. J. Ogilvie
Fellow of INSTAAR.
PhD: 1982, University of East Anglia, Norwich, UK.
Specialty: The transcription, analysis, and calibration of historical documentary climate records, in particular unpublished manuscript sources, in Icelandic, Danish, Norwegian and Swedish.
Research Interests: The environmental, social, and human history of countries bordering the North Atlantic regions, in particular Iceland, Greenland, Norway, and the United Kingdom; the past climate and sea-ice record of Iceland; human and social dynamics in the context of climatic and environmental changes; syntheses of proxy climate records; North Atlantic fisheries history; the Viking period; the Icelandic Sagas; the history and anthropology of wetlands in Iceland and Norway; history of science; constructions of images of the north, especially Iceland; also interdisciplinary research with colleagues in a variety of fields including archaeology and anthropology, in particular through NABO (the North Atlantic Biocultural Organization) - chair of climate working group - and climate history, especially as co-chair of EACH (European and Atlantic Climate Historians).
Irina Overeem
Research Scientist of INSTAAR.
PhD: 2002, Delft University of Technology, the Netherlands.
Specialty: Stratigraphy, Numerical modeling of river and delta processes, Arctic surface processes and geomorphology, Community Surface Dynamics Modeling System.
Research Interests: My longterm research goal is to develop predictive sedimentary models, which form a tool to quantify responses of sedimentary systems to changing environmental conditions. I do have a keen interest in using field studies to critically assess model performance. Current projects involve Arctic Rivers and their Sediment Supply, and Arctic Coastal Erosion.
Scott D. Peckham
INSTAAR Fellow.
PhD: 1995, University of Colorado
Specialty: Surface water hydrology, geomorphology, scaling analysis, and mathematical modeling
Research Interests: Physically-based mathematical and numerical modeling of watershed-scale hydrologic systems, source-to-sink sediment transport, scaling analysis, river networks, theoretical geomorphology, grid-based computational methods, efficient computer algorithms and fluvial landscape evolution models.
W. Tad Pfeffer
Fellow of INSTAAR; Professor of Civil, Environmental, and Architectural Engineering, Univ. of Colorado at Boulder.
PhD: 1987, University of Washington.
Specialty: Glaciology, continuum mechanics, heat transfer.
Research Interests: Dynamics of present and past glaciers and ice sheets, through field observational methods and numerical modeling, with emphasis on analysis of stress, deformation and defracture, and iceberg calving and ice/ocean interaction. Also, heat and mass transfer in seasonal and perennial snowpacks and atmospheric and snowpack temperature measurement methods.
Tim R. Seastedt
Fellow of INSTAAR.; Professor of Ecology and Evolutionary Biology, Univ. of Colorado at Boulder.
PhD: 1979, University of Georgia.
Specialty: Terrestrial ecosystems and biogeochemistry.
Research Interests: Biotic interactions with physical and chemical properties of the environment to control patterns of energy flow and material cycling. Emphasis is placed on soil phenomena, particularly those of grassland and tundra ecosystems.
Robert F. Stallard
Fellow of INSTAAR; Research Hydrologist of US Geological Survey.
PhD: 1980, MIT-WHOI
Specialty: Biogeochemistry, hydrology, and geomorphology.
Research Interests: The earth-surface environment and how it changes on human and geologic time scales. My emphasis is on climate and land-use changes and how these affect processes that control the composition and dispersal of dissolved and solid phases in rivers and trace gases in the atmosphere.
James P. M. Syvitski
Fellow and Former Director of INSTAAR; Executive Director of CSDMS; Professor of Geological Sciences, Univ. of Colorado at Boulder.
PhD: 1978. University of British Columbia (1) Geological Sciences, 1st class, (2) Oceanography, 1st Class.
Specialty: Sedimentology, oceanography, hydrology, numerical modeling (climate-ice-water-sediment interactions), marine geophysics, slope instabilities, seafloor acoustics.
Research Interests: Presently investigating: (1) the discharge dynamics of global rivers and the sediment load they carry, (2) the morphology and deposits of continental margins, (3) the impact of high-energy weather events on our coastline; and (4) the impact of ice sheets on high-latitude shelves and slopes.
Alan R. Townsend
Fellow and Associate Director of INSTAAR; Associate Professor of Ecology and Evolutionary Biology, Univ. of Colorado at Boulder.
PhD: 1994, Stanford University.
Specialty: Biogeochemistry/ecosystem ecology.
Research Interests: Carbon and nitrogen dynamics at regional to
global scales; phosphorus controls over C and N in moist tropical systems;
nutrient controls over soil carbon storage; human health effects of a changing
N cycle.
James W.C. White
Fellow and Director of INSTAAR; Professor of Geological Sciences, Univ. of Colorado at Boulder.
PhD: 1983, Columbia University.
Specialty: Global change, paleoclimate dynamics, biogeochemistry.
Research Interests: Stable isotope laboratory: global scale climate and environmental dynamics, carbon dioxide concentrations and climate from stable hydrogen isotopes peats and other organics, climate from deuterium excess and hydrogen isotopes in ice cores; isotopes in general circulation models; modern carbon cycle dynamics via isotopes of carbon dioxide and methane.
Mark W. Williams
Fellow of INSTAAR; Professor of Geography, Univ. of Colorado at Boulder.
PhD: 1991, University of California-Santa Barbara.
Specialty: Alpine biogeochemistry, hydrology, and snow hydrology.
Research Interests:The processes that determine the hydrochemistry and biogeochemistry of high-elevation basins including the storage and release of solutes from the snowpack, biogeochemical modifications of snowpack runoff, nutrient cycling, and hydrologic pathways and residence time. Current projects include the Rocky Mountains, Ecuadorian and Bolivian Andes, and Central Asian areas of Kazakhstan, Kirghizia, and China.
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