Atmospheric Profiling Group

The Atmospheric Profiling Group (APG) deploys the ISS (Integrated Sounding System) for a wide range of field experiments.


An ISS deployed on Diego Garcia in the Indian Ocean for the DYNAMO project.

Deployable Facilities

ISS (Integrated Sounding System)
 A collection of instruments to continuously profile the lower atmosphere. Configurable for a wide range of purposes, the ISS usually consists of a radiosonde sounding system, a wind profiler radar and a surface met tower, however a range of other instrumentation can be added. The ISS can be deployed at fixed sites, or as truck or trailer-based mobile systems, or on board research ships. Three ISS systems are available for deployment.
» Read more about the ISS (Integrated Sounding System)

Supplemental Instruments
The APG has a range of other instruments available, including a Doppler sodar-RASS, ceilometer, basic surface met towers, GPS water vapor, WXT weather sensors, rain gauges, optical disdrometer, all-sky camera and others. Leased or user-supplied instruments can also be deployed, such as lidars, profiling microwave radiometers, radar disdrometers, electric field mills, and other instruments.

Development Activities

The APG is developing a facility known as the Modular Profiler Network (MPN). MPN uses a new 449 MHz wind profiler with a modular design. This system consists of a set of antenna and electronic modules that can be deployed either together to produce a single powerful radar capable of profiling high into the atmosphere, or deployed individually to produce multiple radars for probing just the lower atmosphere over an extended area.