NOAA NSSL CLAMPS2 TROPoe Retrievals

These files contain 24-hour periods of retrieved thermodynamic profiles derived from observations collected by the CLAMPS2 Atmospheric Emitted Radiance Interferometer (AERI). These retrievals were processed in the IDL (e.g., the AERIoe version) of the TROPoe algorithm (see Turner and Loehnert 2014; Turner and Blumberg 2019). These data were collected during the SPLASH-SAIL project. Quicklook imagery included in QL.zip.

The AERI consists of a Fourier transform interferometer, scene scanning-optics, IR detector, calibration blackbodies, and instrument control hardware. The exact system design and extensive theory of operation can be found in Knuteson et al. (2004). On a clear sky day it is capable of measuring IR radiances throughout the depth of the atmosphere with a wavenumber resolution 1 cm^-1 and temporal resolution of ~20 seconds. The AERI has an absolute accuracy of < 1% of the ambient blackbody radiance and has typical noise < 0.2 mW ( m²sr cm^-1) ^-1. The instrument is not able to collect observations in precipitation and when precipitation is detected a mechanical hatch is closed to protect the instrument. The radiances collected by the AERI contain information that can be used to obtain profiles of temperature, water vapor and trace gases as well as basic cloud properties. Complete detail included in the README file.