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A pan-Arctic, storm-by-storm isotopic investigation of the influence of Arctic sea ice on precipitation - a crucial link in the coupled climate system
This project will quantify the relationship between the ice-free area of the Arctic Ocean and surrounding seas, and evaporation and precipitation in the Arctic. The methodology... -
Linking Maps, Manuscripts, and Place Names Data to Improve Environmental Knowledge in Alaska
This award supports a project that will compile a geographic database linking place name data found on historic Alaskan maps, manuscripts, and within oral histories and printed... -
Investigating Northern Peatland Methane Dynamics by Synthesizing Measurements, Remote Sensing and Modeling from Local to Regional to Continental Scales
Wetland ecosystems are the largest natural source of methane, a potent and long lasting greenhouse gas, to the atmosphere. Wetland soils in northern latitudes are warming faster... -
An Experiment Relating Black Carbon Content to Reduction of Snow Albedo
Black carbon (BC) in snow and ice has been identified as one of the largest uncertainties in estimates of global radiative forcing for climate change. In this project artificial... -
The Seasonal Atmospheric Circulation and Climate Response to Arctic Sea Ice Loss: Mechanisms and Robustness across Models
The PIs will use 4 state-of-the-art coupled climate models participating in the Intergovernmental Panel on Climate Change 4th and 5th Assessment Reports in a consistent... -
Quantifying changes in the Arctic hydrological cycle at the landscape scale using advances in water vapor isotope (18O & D) techniques and aircraft
The water cycle has a central role in Arctic climate change, and is coupled to alterations of land, rivers and lakes as well as permafrost processes, including shifts in the... -
Exploring the Dynamics of the Active Layer and Near-Surface Permafrost across the North Slope of Alaska
The overall objective of the research is to investigate changes in the dynamics of the active layer and the top layers of ice-rich permafrost on the North Slope of Alaska using... -
LTREB Renewal Lifetime Fitness Consequences of Reproductive Strategies
This project continues a 31-year study of Black Brant geese on the Tutakoke River in Alaska. To date, >45,000 individuals have been marked and ~2,000 previously-marked... -
The Role of Iron and Reactive Oxygen Species in the Oxidation and Fate of DOM in Natural Waters
This study will determine the direct and indirect roles of iron in both light and dark reactions involving DOM degradation, and estimate the importance of iron in determining... -
Carbon, Water, and Energy Balance of the Arctic Landscape at Flagship Observatories in Alaska and Siberia
The arctic landscape interacts with the global and regional climate by exchanging carbon dioxide, methane, water, and energy with the atmosphere. Understanding how these... -
The Arctic Springtime Transition: Dynamics, Impacts, and Future Changes
In the Arctic, the arrival of spring is sudden. The abrupt onset of Arctic spring comes with the development of high pressure over Baffin Bay and the Labrador Sea and shifts in... -
An interdisciplinary monitoring mooring in the western Arctic boundary current: Climatic forcing and ecosystem response
This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). This grant supports the deployment of a single, strategically placed mooring in... -
Multi-Regional Scale Aircraft Observations of Methane and Carbon Dioxide Isotopic Fluxes in the Arctic
This grant directly addresses the release of carbon dioxide and methane from terrestrial melt zones and ocean systems that result from the loss of the Arctic Ocean ice cover.... -
Critical Issues on Cold Region Precipitation Characteristics
The type of precipitation to reach the earth's surface is highly dependent on the lower tropospheric temperature profile. Strong and persistent temperature inversions, a unique... -
Development of an Ice-Tethered Winch for the Seasonal Ice Zone
The ice-tethered winch (ITW) will combine the design of two established technologies, the Ice-Tethered Profiler and Arctic Winch. Merging these technologies will expand upon... -
Observing and characterizing submesoscale dynamics in the Arctic Ocean
Preliminary analysis reveals that the Arctic Ocean mixed layer displays a complicated submesoscale structure with significant horizontal density gradients (fronts) and small... -
Impact of Storm Activity on Recent Changes in Arctic Sea Ice Mass Balance
This project is to investigate impacts of changes in storm track dynamics on the recent rapid reduction in Arctic sea ice extent and volume. The increase of storm intensity and... -
Extreme summer melt: Assessing the habitability and physical structure of rotting first-year Arctic sea ice
This project has two main objectives: 1) determination of the physical and microbial characteristics and microstructural evolution of sea ice exposed to severe melt; and 2)... -
A multi-faceted evaluation of aerosol impacts on Arctic clouds
The project will utilize results from several Arctic measurement sites, including long-term observations at Barrow, Alaska, and shorter-term observations from Summit, Greenland,... -
Indigenous Research Principles, Protocols, and Practices
This project supports a series of scientific workshops among Alaska Native, Hawai'ian Native, and Plains Indian indigenous scholars and scientists. The goal of these workshops...
