Technical note: First spectral measurement of the Earth´s upwelling emission using an uncooled wideband Fourier transform spectrometer

Year: 2006

Authors: Palchetti L., Belotti C., Bianchini G., Castagnoli F., Carli B., Cortesi U., Pellegrini M., Camy-Peyret C., Jeseck P., Té Y.

Autors Affiliation: Istituto di Fisica Applicata Nello Carrara – Consiglio Nazionale Delle Ricerche, IFAC-CNR, Sesto Fiorentino, Firenze, I-50019, Italy; Laboratoire de Physique Moléculaire Pour l\’Atmosphère et l\’Astrophysique, LPMAA, Universite Pierre et Marie Curie – CNRS, Paris CEDEX 05, F-75252, France

Abstract: The first spectral measurement of Earth’s emitted radiation to space in the wideband range from 100 to 1400 cm(-1) with 0.5 cm(-1) spectral resolution is presented. The measurement was performed from a stratospheric balloon in tropical region using a Fourier transform spectrometer, during a field campaign held in Brazil in June 2005. The instrument, which has uncooled components including the detector module, is a prototype developed as part of the study for the REFIR ( Radiation Explorer in the Far InfraRed) space mission. This paper shows the results of the field campaign with particular attention to the measurement capabilities of the prototype. The results are compared with measurements taken by IASI-balloon ( Infrared Atmospheric Sounding Interferometer – Balloon version), aboard the same platform, and with forward model estimations. The infrared signature of clouds is observed in the measurements.

Journal/Review: ATMOSPHERIC CHEMISTRY AND PHYSICS

Volume: 6      Pages from: 5025  to: 5030

KeyWords: FTIR spectroscopy; infrared radiation; spectral analysis; stratosphere; tropical region, Brazil; South America
DOI: 10.5194/acp-6-5025-2006

Citations: 32
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