Instrument : In-situ Aerosol Profiles (Cessna Aerosol Flights) (IAP)

Instrument Categories
Atmospheric Profiling, Airborne Observations, Aerosols

General Overview

The In-situ Aerosol Profiles (IAP) campaign is a joint effort between the ARM Program and the Climate Monitoring and Diagnostics Laboratory (CMDL) of the U.S. National Oceanic and Atmospheric Administration (NOAA). The objective is to obtain a statistically-significant data set of the vertical distribution of aerosol properties (e.g., light scattering and absorption, particle chemistry) by flying a light aircraft over the SGP site. By utilizing a similar aerosol instrument package as the Aerosol Observing System (AOS) at SGP, the aircraft will fly level legs at altitudes between 500 m and 3500 m several times per week. See the IAP website for more information.

Output Datastreams

  • iap : In-situ Aerosol Profiles (Cessna Aerosol Flights), 1-second
  • iapavg : In-situ Aerosol Profiles (Cessna Aerosol Flights), averaged at various flight levels
  • iapmfr : In-situ Aerosol Profiles MultiFilter Radiometer (Cessna Aerosol Flights)

Primary Measurements

The following measurements are those considered scientifically relevant.


Southern Great Plains
SGPC1 Browse DataCentral Facility, Lamont, OK


Gary Hodges
(303) 497-6460