title: Airborne interferometer for atmospheric emission and solar absorption.
abstract: The interferometer for emission and solar absorption (INTESA) is an infrared spectrometer designed to study radiative transfer in the troposphere and lower stratosphere from a NASA ER-2 aircraft. The Fourier-transform spectrometer (FTS) operates from 0.7 to 50 mum with a resolution of 0.7 cm(-1). The FTS observes atmospheric thermal emission from multiple angles above and below the aircraft. A heliostat permits measurement of solar absorption spectra. INTESA's calibration system includes three blackbodies to permit in-flight assessment of radiometric error. Results suggest that the in-flight radiometric accuracy is ~0.5 K in the mid-infrared.
authors: D W
authors: DW
authors: Keith
authors: J A
authors: JA
authors: Dykema
authors: H
authors: H
authors: Hu
authors: L
authors: L
authors: Lapson
authors: J G
authors: JG
authors: Anderson