Collaborative Research: Soil-Snow-Atmosphere Exchange of Mercury in the Interior Arctic Tundra
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Project details
The goal of this project is to characterize soil-snow-atmosphere dynamics of mercury (Hg) in the snow-dominated Arctic tundra. Chemical conversion of Hg in snowpack from non-volatile forms to gaseous elemental mercury (GEM) can lead to substantial degassing of Hg from snow, thereby reducing the impact of atmospheric deposition. Contrary to the GEM chemistry seen in the midlatitude snowpack, preliminary observations from Toolik Lake, on the north slope of the Brooks Range, Alaska, provide evidence that photochemical GEM formation and degassing are suppressed in tundra snow and that for much of the winter, interstitial GEM is actually converted into non-volatile Hg. These patterns result in extended periods when interstitial snowpack air is depleted in GEM. If confirmed, this chemistry would likely signify a net transfer of atmospheric GEM to snow or underlying soils, thereby increasing Hg deposition to tundra ecosystems. Project objectives are to investigate (1) the frequency and underlying processes that determine GEM depletion and formation in arctic snowpack and tundra soils; (2) the degree to which GEM dynamics cause vertical Hg exchange between soils, snow, and the atmosphere; and (3) how these processes provide additional sources − or sinks − of Hg via atmosphere-surface transfer and snowmelt input. GEM concentrations in soils, snow, and air, as well as vertical exchanges, will be characterized at Toolik Field Station. Measurements will be made by means of a snow-sampling manifold system allowing for fully automated and continuous all-winter measurements of trace gases at multiple depths in the undisturbed snowpack and the atmosphere. These experiments will be supplemented by flux chamber measurements to assess the contribution of the underlying tundra soils. Other trace gas observations, and chemical characterization of soil, snow, melt water, and soil water will be incorporated to assess the environmental and biogeochemical controls on GEM dynamics and the Hg budget. This research will leverage ongoing LTER and NEON projects at the Toolik Field station, providing linkages between in-snow processes, tundra soil and freshwater biogeochemical cycling, pollution import into the Arctic, and ecosystem processes. The project will directly involve high school, undergraduate, graduate students, and a postdoctoral scientist. It will expand an existing partnership with local high school chemistry classes through research presentations in classrooms, laboratory tours, and data analyses using study results. Dissemination to the scientific community will be accomplished through peer-reviewed publications and conference presentations, and by communication with U.S. and international regulatory agencies. The general public will be reached through news releases, institutional publications, open house events, and a web site. Data will be archived at the National Snow and Ice Data Center at the University of Colorado for distribution to the national and international polar research community.
Title | Project start | End date | Organisation | Department | Project study region |
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NNA: Remote Sensing of Arctic Sea Ice Using the Super Dual Auroral Radar Network | 01.01.2018 | 31.12.2021 | Dartmouth College | Dartmouth College, Department | |
Investigation of the mechanisms that drive intraseasonal Arctic surface air temperature variability during the winter | 01.01.2017 | 31.12.2020 | Penn State University | Penn State University, Department | |
Collaborative Research: Characterizing the Roles of Atmospheric Structure and Clouds on the Radiation and Precipitation Budgets at Summit, Greenland | 01.01.2013 | 31.12.2016 | Washington State University | Department of Civil and Environmental Engineering | |
Collaborative Research: The Influence of Arctic - Lower-Latitude Interactions on Weather and Climate Variability: Mechanisms, Predictability, and Prediction | 01.01.2017 | 31.12.2020 | Woods Hole Oceanographic Institute | Woods Hole Oceanographic Institute, Department | |
Scientific Program Overview: Troposphere High latitude INhibitors to multi-scale sea ICE Predictability (THINICE) | 01.01.2019 | 31.12.2021 | University of Oklahoma | University of Oklahoma Norman Campus, dept. | |
Collaborative Proposal: The Role of Arctic Amplification in Modifying Mid-latitude Atmospheric Circulation and Promoting Extreme Weather Events | 01.01.2013 | 31.12.2016 | University of Wisconsin | University of Wisconsin, Madison, Space Science and Engineering Center | |
The role of uncertainty in waveguide perturbations on midlatitude predictability with DOWNSTREAM | 01.01.2015 | 31.12.2018 | State University of New York | State University of New York at Albany, dept. | |
Collaborative Research: The Influence of Arctic - Lower-Latitude Interactions on Weather and Climate Variability: Mechanisms, Predictability, and Prediction | 01.01.2017 | 31.12.2020 | National Center for Atmospheric Research | National Center for Atmospheric Research, Department | |
Sensitivity of the mid-latitude waveguide to the dynamics and observations of Arctic tropopause-based vortices | 01.01.2015 | 31.12.2018 | University of Oklahoma | University of Oklahoma Norman Campus, dept. | |
The Seasonal Atmospheric Circulation and Climate Response to Arctic Sea Ice Loss: Mechanisms and Robustness across Models | 01.01.2012 | 31.12.2015 | National Center for Atmospheric Research | National Center for Atmospheric Research, Department | |
Collaborative Research: Assessing the Impact of Arctic Sea Ice Variability on the Greenland Ice Sheet Surface Mass and Energy Balance | 01.01.2013 | 31.12.2016 | University of Colorado Boulder | University of Colorado Boulder, Department | |
Collaborative Research: The Combined Influence of sea ice and snow cover on Northern Hemisphere Atmospheric Climate Variability | 01.01.2015 | 31.12.2018 | Atmospheric and Environmental Research Inc (AER) | Atmospheric and Environmental Research Inc, dept. | |
Collaborative Research: Characterizing the Roles of Atmospheric Structure and Clouds on the Radiation and Precipitation Budgets at Summit, Greenland | 01.01.2013 | 31.12.2016 | University of Colorado Boulder | University of Colorado Boulder, Department | |
Collaborative Research-HIARC: Anthropogenic Heat Islands in the Arctic. Windows to the Future of the Regional Climates, Ecosystems and Societies | 01.01.2015 | 31.12.2019 | George Washington University | George Washington University, dept. | |
NNA: Bridging the Atomistic Deformation Mechanisms to the Microscopic Adhesive-to-Cohesive Fracture at Ice-Metal Interfaces | 01.01.2018 | 31.12.2021 | Idaho State University | Idaho State University, dept. | |
Collaborative Research: Characterizing the Roles of Atmospheric Structure and Clouds on the Radiation and Precipitation Budgets at Summit, Greenland | 01.01.2013 | 31.12.2016 | University of Wisconsin | University of Wisconsin, Madison, Space Science and Engineering Center | |
RUI: Quantifying and Predicting the Impact of the Madden-Julian Oscillation on the State of the Arctic | 01.01.2012 | 31.12.2015 | United States Naval Academy | United States Naval Academy, dept. | |
Collaborative Proposal: The Role of Arctic Amplification in Modifying Mid-latitude Atmospheric Circulation and Promoting Extreme Weather Events | 01.01.2013 | 31.12.2016 | Rutgers University New Brunswick | Rutgers University New Brunswick, Department | |
Collaborative Research: Assessing the Impact of Arctic Sea Ice Variability on the Greenland Ice Sheet Surface Mass and Energy Balance | 01.01.2016 | 31.12.2017 | City University of New York | City University of New York (CUNY), dept. | |
Impacts of distant pollution sources on microphysical transitions in Arctic clouds | 01.01.2013 | 31.12.2016 | University of Utah | University of Utah, dept. | |
NNA Track 2: PredictFest: To Build Capacity for Arctic Stakeholders in Need of Multi-Scale Predictions | 01.01.2020 | 31.12.2022 | University of Alaska | University of Alaska Fairbanks, Department | |
Collaborative Research: Assessing the Impact of Arctic Sea Ice Variability on the Greenland Ice Sheet Surface Mass and Energy Balance | 01.01.2013 | 31.12.2016 | Rutgers University New Brunswick | Rutgers University New Brunswick, Department | |
Collaborative Research: Assessing the Simulated Arctic Freshwater System in CMIP5 Models, the CESM Large Ensemble, and Forced Simulations | 01.01.2015 | 31.12.2018 | University of Colorado Boulder | University of Colorado Boulder, Department | |
Collaborative Research-HIARC: Anthropogenic Heat Islands in the Arctic. Windows to the Future of the Regional Climates, Ecosystems and Societies | 01.01.2015 | 31.12.2019 | University of Colorado Boulder | University of Colorado Boulder, Department | |
Collaborative Research: Arctic sea ice variability: Remote drivers and local processes | 01.01.2018 | 31.12.2021 | University of California | University of California, Santa Barbara, dept. | |
Collaborative Research: Decoding & Predicting Greenland's Surface Melt History & Future with Observations, Regional Atmospheric Modeling and GCMs | 01.01.2013 | 31.12.2017 | University of Tennessee | University of Tennessee, dept. | |
Collaborative Research: Decoding & Predicting Greenland's Surface Melt History & Future with Observations, Regional Atmospheric Modeling and GCMs | 01.01.2013 | 31.12.2018 | Penn State University | Penn State University, Department | |
The Impact of the Stratosphere on Arctic Climate | 01.01.2016 | 31.12.2019 | Columbia University | Columbia University, Lamont-Doherty Earth Observatory | |
Collaborative Research: Integrated Characterization of Energy, Clouds, Atmospheric state, and Precipitation at Summit (ICECAPS) | 01.01.2013 | 31.12.2014 | Washington State University | Department of Civil and Environmental Engineering | |
Collaborative Research: Characterizing the Roles of Atmospheric Structure and Clouds on the Radiation and Precipitation Budgets at Summit, Greenland | 01.01.2013 | 31.12.2016 | National Oceanic & Atmospheric Administration (NOAA) | National Oceanic & Atmospheric Administration (NOAA), Dept | |
Unraveling the history of the Greenland Ice Sheet from its internal radiostratigraphy | 01.01.2015 | 31.12.2018 | University of Washington | School of Oceanography | |
Collaborative Research: Assessing the Impact of Arctic Sea Ice Variability on the Greenland Ice Sheet Surface Mass and Energy Balance | 01.01.2013 | 31.12.2016 | City University of New York | City University of New York (CUNY), dept. | |
Facilitating Arctic System Science using the Community Earth System Model | 01.01.2014 | 31.12.2017 | National Center for Atmospheric Research | National Center for Atmospheric Research, Department | |
Collaborative Research: Arctic sea ice variability: Remote drivers and local processes | 01.01.2018 | 31.12.2021 | University of Washington | School of Oceanography | |
Collaborative Research: Decoding & Predicting Greenland's Surface Melt History & Future with Observations, Regional Atmospheric Modeling and GCMs | 01.01.2013 | 31.12.2016 | University of Maryland | University of Maryland College Park, dept. | |
Collaborative Research: Assessing the Simulated Arctic Freshwater System in CMIP5 Models, the CESM Large Ensemble, and Forced Simulations | 01.01.2015 | 31.12.2018 | McGill University | McGill University, Dept | |
Assessing Transport Pathways into the Arctic and Their Efficiencies | 01.01.2019 | 31.12.2022 | Columbia University | Columbia University, Lamont-Doherty Earth Observatory | |
Collaborative Research: The Combined Influence of sea ice and snow cover on Northern Hemisphere Atmospheric Climate Variability | 01.01.2015 | 31.12.2018 | Massachusetts Institute of Technology | Massachusetts Institute of Technology, Department | |
Timing and Paleoceanographic Impacts of the Onset of Arctic-Baffin Bay Throughflow | 01.01.2018 | 31.12.2021 | University of Colorado Boulder | University of Colorado Boulder, Department | |
Collaborative Research: An examination of human social and cultural adaptation through archaeological and paleoclimate data from the Aleutian Islands | 01.01.2016 | 31.12.2019 | Western Washington University | Western Washington University, dept. | |
Analysis to evaluate and improve model performance in the Central Arctic: Unique perspectives from autonomous platforms during MOSAiC | 01.01.2018 | 31.12.2022 | University of Colorado Boulder | University of Colorado Boulder, Department | Arctic (entire region) |
Identifying the Origins of Summertime Arctic Cloud Condensation Nuclei Using Online Fine Aerosol Composition Measurements | 01.01.2017 | 31.12.2020 | University of California | University of California, Irvine, dept. | Arctic (entire region) |
UV-index service | 01.03.2012 | 28.02.2022 | Danish Meteorological Institute (DMI) | Research and Development | Arctic (entire region) |
DMI service of weather stations east Greenland 2018 | 01.08.2018 | 31.08.2018 | Danish Meteorological Institute (DMI) | Arctic (entire region) | |
Deciphering the role of sea-ice microorganisms on cloud processes in the Arctic | 01.06.2019 | 30.05.2021 | Aarhus University (AU) | Department of Bioscience | Denmark |
GeoBasis-Zackenberg 2020 | 01.04.2020 | 31.03.2021 | Aarhus University (AU) | Department of Bioscience | Denmark |
Collaborative Research: Improving research coordination for Summit Station and the Dry-Snow Zone of Greenland | 01.01.2019 | 31.12.2022 | Washington State University | Department of Civil and Environmental Engineering | Greenland Ice Sheet |
Collection and Analysis of GEOSummit Aerosols | 01.01.2016 | 31.12.2021 | University of California | University of California, Davis, dept. | Greenland Ice Sheet |
NNA: AON: EAGER: Closing the Water Vapor Exchange Budget Between the Ice Sheets and Free Atmosphere | 01.01.2018 | 31.12.2020 | University of Colorado Boulder | University of Colorado Boulder, Department | Greenland Ice Sheet |
North East Greenland Automated Weather Station and GPS | 01.01.2016 | 31.12.2017 | University of California | University of California, Irvine, dept. | Greenland Ice Sheet |
NNA: NSFGEO-NERC: Collaborative Research: The Integrated Characterization of Clouds, Energy, Atmospheric state, and Precipitation at Summit, Aerosol-Cloud Experiment (ICECAPS-ACE) | 01.01.2018 | 31.12.2021 | Washington State University | Department of Civil and Environmental Engineering | Greenland Ice Sheet |
Collaborative Research: Improving research coordination for Summit Station and the Dry-Snow Zone of Greenland | 01.01.2019 | 31.12.2022 | University of New Hampshire | University of New Hampshire, Department | Greenland Ice Sheet |
Collaborative Research: Reconstruction of Carbon Monoxide in the Pre-Industrial Arctic Atmosphere from Ice Cores at Summit, Greenland | 01.01.2015 | 31.12.2017 | University of Rochester | University of Rochester, Dept | Greenland Ice Sheet |
Collaborative Research: Refining Long-term Climate Records from the Renland Ice Cap | 01.01.2014 | 31.12.2017 | University of Colorado Boulder | University of Colorado Boulder, Department | Greenland, Mid-East |
Collaborative Research: Integrated Characterization of Energy, Clouds, Atmospheric state, and Precipitation at Summit (ICECAPS) | 01.01.2014 | 31.12.2018 | Washington State University | Department of Civil and Environmental Engineering | Greenland, Mid-West |
Collaborative Research: Improving research coordination for Summit Station and the Dry-Snow Zone of Greenland | 01.01.2019 | 31.12.2022 | Dartmouth College | Dartmouth College, Department | Greenland, Mid-West |
Collaborative Research: Integrated Characterization of Energy, Clouds, Atmospheric state, and Precipitation at Summit (ICECAPS) | 01.01.2014 | 31.12.2018 | University of Colorado Boulder | University of Colorado Boulder, Department | Greenland, Mid-West |
Atmospheric Hydrocarbons at GEOSummit, Greenland, as Tracers for Climate Change, Air Pollution Transport, and Oxidation Chemistry in the Arctic | 01.01.2018 | 31.12.2019 | University of Colorado Boulder | University of Colorado Boulder, Department | Greenland, Mid-West |
The response of the Greenland Ice Sheet to Holocene climate change: Testing ice sheet models and forcing mechanisms of ice margin change | 01.01.2012 | 31.12.2015 | University at Buffalo | University at Buffalo, Department | Greenland, Mid-West |
Collaborative Research: Integrated Characterization of Energy, Clouds, Atmospheric state, and Precipitation at Summit (ICECAPS) | 01.01.2014 | 31.12.2018 | University of Wisconsin | University of Wisconsin, Madison, Space Science and Engineering Center | Greenland, Mid-West |
A Glacier Dynamics and Ice-Ocean Interactions Perspective for IceBridge Science | 01.01.2014 | 31.12.2016 | University of California | University of California, Irvine, dept. | Greenland, Mid-West |
Collaborative Research: Refining Long-term Climate Records from the Renland Ice Cap | 01.01.2014 | 31.12.2017 | Penn State University | Penn State University, Department | Greenland, Mid-West |
Reconstruction of climate at the Norse Settlements of Greenland over the last two millennia using organic biomarkers in lake sediments | 01.01.2016 | 31.12.2019 | University of Massachusetts | University of Massachusetts, Amherst, dept. | Greenland, Mid-West |
Collaborative Research: Science coordination office for Summit Station/ISI Observatory and the Greenland Traverse | 01.01.2017 | 31.12.2018 | University of California | University of California, Merced, dept. | Greenland, Mid-West |
Collaborative Research: Reconstruction of Carbon Monoxide in the Pre-Industrial Arctic Atmosphere from Ice Cores at Summit, Greenland | 01.01.2015 | 31.12.2017 | Columbia University | Columbia University, Lamont-Doherty Earth Observatory | Greenland, Mid-West |
Collaborative Research: Reconstruction of Carbon Monoxide in the Pre-Industrial Arctic Atmosphere from Ice Cores at Summit, Greenland | 01.01.2015 | 31.12.2017 | Desert Research Institute | Desert Research Institute, Earth and Ecosystem Sciences | Greenland, Mid-West |
High Resolution, Active Remote Sensing of Cloud Microphysics at Summit, Greenland with Polarized Raman Lidar | 01.01.2013 | 31.12.2018 | University of Leeds | University of Leeds, dept. | Greenland, Mid-West |
Collaborative Research: Integrated Characterization of Energy, Clouds, Atmospheric state, and Precipitation at Summit (ICECAPS) | 01.01.2014 | 31.12.2018 | National Oceanic & Atmospheric Administration (NOAA) | National Oceanic & Atmospheric Administration (NOAA), Dept | Greenland, Mid-West |
Collaborative Research: Science coordination office for Summit Station/ISI Observatory and the Greenland Traverse | 01.01.2017 | 31.12.2018 | Dartmouth College | Dartmouth College, Department | Greenland, Mid-West |
Polarsonde: A Meteorological Sensor To Detect Aircraft Icing Hazard | 01.01.2012 | 31.12.2013 | University of Adelaide | The University of Adelaide, dept. | Greenland, Mid-West |
Collaborative Research: Science coordination office for Summit Station/ISI Observatory and the Greenland Traverse | 01.01.2017 | 31.12.2018 | University of New Hampshire | University of New Hampshire, Department | Greenland, Mid-West |
2019 Undergraduate Greenland Workshop | 01.01.2018 | 31.12.2019 | University of Michigan | University of Michigan, Department | Greenland, Mid-West |
NNA: NSFGEO-NERC: Collaborative Research: The Integrated Characterization of Clouds, Energy, Atmospheric state, and Precipitation at Summit, Aerosol-Cloud Experiment (ICECAPS-ACE) | 01.01.2018 | 31.12.2020 | University of Wisconsin | University of Wisconsin, Madison, Space Science and Engineering Center | Greenland, Mid-West |
Collaborative Research: Continuous Records of Greenhouse Gases and Aerosol Deposition During the Holocene: Testing the Fidelity of New Methods for Reconstructing Atmospheric Change | 01.01.2012 | 31.12.2015 | Oregon State University | Oregon State University, College of Earth, Ocean and Atmospheric Sciences | Greenland, Mid-West |
Collaborative Research: Reconstruction of Carbon Monoxide in the Pre-Industrial Arctic Atmosphere from Ice Cores at Summit, Greenland | 01.01.2015 | 31.12.2017 | State University of New York | State University of New York at Stony Brook, dept. | Greenland, Mid-West |
NNA: NSFGEO-NERC: Collaborative Research: The Integrated Characterization of Clouds, Energy, Atmospheric state, and Precipitation at Summit, Aerosol-Cloud Experiment (ICECAPS-ACE) | 01.01.2018 | 31.12.2020 | University of Colorado Boulder | University of Colorado Boulder, Department | Greenland, Mid-West |
Collaborative Research: Continuous Records of Greenhouse Gases and Aerosol Deposition During the Holocene: Testing the Fidelity of New Methods for Reconstructing Atmospheric Change | 01.01.2012 | 31.12.2015 | Desert Research Institute | Desert Research Institute, Earth and Ecosystem Sciences | Greenland, Mid-West |
MaxDOAS | 15.04.2017 | 29.04.2017 | Aarhus University (AU) | Department of Environmental Science | Greenland, North-East |
Arctic monitoring Assessment program | 01.01.2017 | 31.12.2017 | Aarhus University (AU) | Department of Environmental Science | Greenland, North-East |
ObsArktis | 03.07.2017 | 21.08.2017 | Aarhus University (AU) | Arctic Research Centre (ARC) | Greenland, North-East |
METAPOL (Meteorological and pollutant observations in the High Arctic) | 10.08.2017 | 20.08.2017 | Aarhus University (AU) | Department of Environmental Science | Greenland, North-East |
Evaluation of existing measurements in 2015 and 2016; new measurements of Short lived greenhouse forcers in 2017 and 2018 (EVAM-SLCF) and 2017-2019 | 01.08.2017 | 31.07.2019 | Aarhus University (AU) | Department of Environmental Science | Greenland, North-East |
Integrated Carbon Observation System (ICOS) | 01.07.2018 | 31.07.2018 | Aarhus University (AU) | Arctic Research Centre (ARC), Department of Bioscience | Greenland, North-East |
Drivhusgas-observationer i Arktis (ObsArktis) | 31.07.2018 | 29.08.2018 | Aarhus University (AU) | Arctic Research Centre (ARC), Department of Bioscience | Greenland, North-East |
AMAP | 01.03.2020 | 15.12.2020 | Aarhus University (AU) | Department of Environmental Science | Greenland, North-East |
GeoBasis-Zackenberg 2018 | 16.04.2018 | 01.11.2018 | Aarhus University (AU) | Department of Bioscience | Greenland, North-East |
The cloud forming potential of atmospheric particles | 01.04.2016 | 30.04.2016 | Aarhus University (AU) | Department of Environmental Science | Greenland, North-East |
ICOS atmospheric | 29.11.2017 | 08.12.2022 | Aarhus University (AU) | Arctic Research Centre (ARC), Department of Environmental Science, Department of Bioscience | Greenland, North-East |
The dynamics of mercury in the Arctic atmosphere | 25.02.2016 | 15.05.2016 | Aarhus University (AU) | Department of Environmental Science | Greenland, North-East |
GeoBasis | 01.04.2019 | 31.03.2020 | Aarhus University (AU) | Department of Bioscience | Greenland, North-East |
Long-range transport of particle pollution to the Arctic and physical properties of Arctic aerosols | 29.04.2015 | 22.05.2015 | Aarhus University (AU) | Department of Environmental Science | Greenland, North-East |
Microbial atmospheric-terrestrial coupling driven by long distance transport and deposition | 11.04.2015 | 03.05.2015 | Aarhus University (AU) | Department of Bioscience | Greenland, North-East |
Snow data collection on Greenland scale | 25.02.2014 | 20.03.2014 | Aarhus University (AU) | Arctic Research Centre (ARC) | Greenland, North-West |
Greenland AWS technology | 01.01.2016 | 31.12.2018 | University of California | University of California, Irvine, dept. | Greenland, North-West |
Snow data collection on Greenland scale | 25.02.2014 | 20.03.2014 | Aarhus University (AU) | Arctic Research Centre (ARC) | Greenland, North-West |
Integrating novel molecular techniques to disentangle the roles of climate, time, and human agency on the evolution of the Icelandic landscape | 01.01.2019 | 31.12.2022 | University of Colorado Boulder | University of Colorado Boulder, Department | Iceland |