Atmospheric System Research (ASR)

Atmospheric System Research (ASR) is sponsored by U.S. Department of Energy (DOE) Office of Science (SC). The ASR program aims to quantify the interactions among aerosols, clouds, precipitation, and radiation to improve understanding of key processes affecting Earth's radiative balance and hydrological cycle.

BER Atmospheric System Research ... | U.S. DOE Office of Science (SC) Atmospheric System Research (ASR) Program The goal of ASR ( http://asr. science.

energy. gov/ ), is to improve understanding of the key cloud, aerosol, precipitation, and radiation processes that affect the Earth’s radiative balance and hydrological cycle, especially processes that limit the predictive ability of regional and global models.

ASR coordinates closely with the ARM scientific user facility, utilizing ARM’s measurements of radiation, aerosols, clouds, precipitation, dynamics, and thermodynamics.

ARM’s continuous observational datasets are supplemented with process models, laboratory studies, and shorter-duration ground-based and airborne field campaigns to target specific atmospheric processes in different locations and across a range of spatial and temporal scales. Program Funding Opportunity Announcements Funding of projects by the program is contingent on adherence to the BER data sharing policy.

Program Research Activities ASR’s four priority research areas correspond to atmospheric regimes with large uncertainties in earth system prediction: aerosol processes, warm boundary-layer processes, convective processes, and high-latitude processes.

To better connect research teams working on the processes and process interactions within each of these areas, ASR is organized into four working groups: The Aerosol Processes working group seeks to improve the understanding of processes governing the spatial and temporal distribution of atmospheric particles and their chemical, microphysical, and optical properties.

The Warm Boundary Layer Processes working group seeks to improve understanding and model representation of processes controlling the structural and radiative properties of clouds, aerosols and their interactions with the underlying surface in the lowest few kilometers of the atmosphere.

The Convective Processes working group seeks to improve the understanding and model representation of convective cloud processes and properties including cloud cover, precipitation, life cycle, dynamics, and microphysics over a range of spatial scales.

The High Latitude Processes working group seeks to improve understanding and model representation of cloud, aerosol, and surface-interaction processes controlling the surface energy budgets in northern and southern high latitude regions.

Collaborations with other EESSD activities ASR-supported research results are incorporated into earth system models supported by EESSD both to understand the processes that govern atmospheric components and to advance the earth system model capabilities with greater certainty of predictions.

Observational process research is also deployed in the CMDV activity to incorporate new process knowledge and validate physics components of next-generation models in the ACME framework.

Summaries of currently funded research projects Earth and Environmental Systems Sciences Division Department of Energy -- GTN Bldg 1000 Independence Ave, SW Washington, DC 20585-1290 Dr. Shaima Nasiri (301) 903-0207 Dr. Jeff Stehr (301) 903-1964 Peering into the Soil: New Technology Maps Nutrient Exchange with Laser Precision A novel laser-based method provides unprecedented detail on the nutrient cycle in root ecosystems.

In Peatland Soil, a Warmer Climate and Elevated Carbon Dioxide Rapidly Alter Soil Organic Matter Experiments find increased temperatures and carbon dioxide rapidly altered peatland carbon stocks, highlighting peatlands’ vulnerability to climate change. U.S. Department of Energy SC-33/Germantown Building 1000 Independence Ave.

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