Atmospheric Radiation Measurement (ARM) Program
ARM was created to help resolve scientific uncertainties related to global climate change, with a specific focus on the crucial role of clouds and their influence on radiative feedback processes in the atmosphere. The primary goal of the ARM Program is to improve the treatment of cloud and radiation physics in global climate models in order to improve the climate simulation capabilities of these models. ARM's scientists research a broad range of issues that span remote sensing, physical process investigation and modeling on all scales.
ARM's climate research sites serve as a national scientific user facility for collaborative research primarily with university, government agency, and national laboratory researchers. These sites provide significant research capability for the global scientific community. The resulting new ARM Climate Research Facility (ACRF) has been designated a national user facility for the purpose of providing this unique asset for the study of global change to a broader national and international research community. Proposed projects at the ACRF are reviewed by the ACRF Science Board, a highly respected group of scientists who assist with reviewing proposals for use of the facility.
The ACRF sites were located to represent different climatic conditions. The three locations are the Southern Great Plains, the Tropical Western Pacific, and the North Slope of Alaska. Each site has been heavily instrumented to gather massive amounts of climate data. Using these data, scientists are studying the effects and interactions of sunlight, radiant energy, and clouds to understand their impact on temperatures, weather, and climate. In addition to the fixed sites, the ARM Mobile Facility will provide the Program with the capability of performing atmospheric measurements similar to those at the other ARM sites for periods up to a year at a time anywhere in the world.
ACRF operations focus on obtaining continuous field measurements and providing data products to promote the advancement of climate models. Data from the sites are are readily available in near-real-time to the scientific community through the data archive established at ORNL.
Research Questions. The research involves a network of ground-based remote-sensing instruments along with campaign studies that use manned and unmanned aircraft. Measurements include vertical profiles of temperature, water vapor, trace gases, aerosols, and solar and infrared radiation. The ARM data provide the testbed for the process models representing the cloud-climate feedbacks in the currently available GCMs as well as in the future climate-change-prediction models of regional-scale resolution.
Additional programmatic information is available via the ARM homepage.

Program Managers

Dr. Wanda R. Ferrell
ARM Climate Research Facility Program Director
Climate and Environmental Sciences Division, SC-23.1
Department of Energy GTN Bldg
1000 Independence Ave, SW
Washington, DC 20585-1290
(301) 903-0043
Fax: (301) 903-8519
Internet:
wanda.ferrell@science.doe.gov

Dr. Kiran Alapaty
ARM Science Director
Climate and Environmental Sciences Division, SC-23.1
Department of Energy GTN Bldg
1000 Independence Ave, SW
Washington, DC 20585-1290
(301) 903-3175
Fax: (301) 903-8519
Internet:
kiran.alapaty@science.doe.gov

Mr. Rick Petty
Program Manager
ARM Aerial Vehicles
Climate and Environmental Sciences Division, SC-23.1
Department of Energy GTN Bldg
1000 Independence Ave, SW
Washington, DC 20585-1290
(301) 903-5548
Fax: (301) 903-8519
Internet:
rick.petty@science.doe.gov