EOL's In-Situ Sensing Facility serves the atmospheric science community's advanced observational needs by providing a flexible, state-of-the-art backbone measurement capability applicable to a wide range of experimental needs - emphasizing advanced sensor capabilities, sensor integration, system mobility, and the ability to deploy to remote or rugged locations.

We provides in-situ and remote measurement systems for observations that target the lower atmosphere.  We collect in-situ data directly at the Earth's surface, on towers, on balloons and on packages dropped from research aircraft.  Remote profiling measurements are made using vertically pointing radar, lidar, and acoustic sensors.

ISF is divided into three groups:

Surface Group

The Surface Group focuses on systems to measure the surface layer, surface energy budget, and surface properties. This group deploys the Integrated Surface Flux System (ISFS) and operates the EOL Calibration Laboratory.


Sounding Group

The Sounding Group focuses on sensors dropped from aircraft and balloons, as well as their associated data systems. This group deploys the AVAPS Dropsonde System on the NSF/NCAR research aircraft. The group also developed and deployed the high latitude long-duration balloon-based Driftsonde system.


Atmospheric Profiling Group

The Atmospheric Profiling Group focuses on instruments to profile the atmosphere, particularly radar wind profilers, radiosonde soundings and basic surface measurements. This group deploys the Integrated Sounding System (ISS).