Atmospheric Radiation Measurement (ARM) user facility
Description
The Atmospheric Radiation Measurement (ARM) user facility (www.arm.gov) is a multi-laboratory scientific user facility that provides the research community with strategically located in situ and remote sensing observatories designed to improve the understanding and representation of cloud, aerosol, and precipitation processes in earth system models in support of DOE’s science, energy, and national security missions.
ARM operates a global network of in situ and remote sensing atmospheric observatories in climatically significant locations to sample continental and marine conditions in diverse environments with a goal to improve capabilities of models to make high quality predictions across the globe. There are three fixed sites (U.S. Southern Great Plains, North Slope of Alaska, and the Azores) and three mobile facilities to explore science questions beyond those addressed by ARM's fixed sites. ARM also has an aerial measurement capability to complement the ground measurements by providing information on spatial variability as well as detailed information on aerosol and cloud microphysical properties that can be obtained only through in situ measurements. ARM supports the development of scientific data products from ARM observations and hosts a data archive that provides scientists with quality-assured data in near real time. Users may access ARM data free of charge and may propose experiments or field campaigns using the ARM fixed, mobile, and aerial facilities.
Science
ARM provides the research community with state-of-the-art observational data to understand the role of clouds and aerosols in controlling the Earth’s energy balance. ARM’s multiple instrument systems, long-term data records, high frequency measurements, and three-dimensional capabilities provide a unique resource for studying aerosol and cloud processes, as well as their interactions and coupling with the Earth’s surface. ARM data has led to significant enhancements to the radiation, aerosol, and cloud components of major earth system models. Over the next decade, ARM will couple observations with high-resolution atmospheric models to accelerate the application of ARM observations for understanding key atmospheric processes important for energy security; provide unique observations of critical polar aerosol and cloud processes; enhance ARM’s aerial capabilities to enable critical in situ observations of the spatially variable structure of the atmosphere, aerosols, and clouds; leverage artificial intelligence (AI) to strengthen ARM operations and to develop AI-ready data products, analysis tools, and computational capabilities that facilitate the scientific community’s use of cutting-edge ARM instruments, such as scanning cloud radars; and provide the observations to support integrated studies of the key aerosol, boundary layer, and convective processes driving aerosol-cloud-precipitation-surface-radiation interactions in continental, marine, and polar environments.
