Concept
Michelson Interferometer for Passive Atmospheric Sounding
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1087/ | ||
|---|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | ||
| Alternative Labels | MIPAS | ||
| Definition | A Fourier Transform Spectrometer, designed to perform natural occultation limb measurements to infer the chemical composition of the middle and upper atmosphere. Using a fore and side limb scanning technique, the instrument detects limb emission spectra, which is generated by sunrays that had been scattered in the atmosphere within an altitude of 5-150 km before reaching the instrument. From these measurements, the atmospheric concentration of approximately twenty chemical species can be spectroscopically identified. The space segment of MIPAS comprises front-end optics, a Michelson interferometer, a focal plane subsystem and a signal processing subsystem. On-board calibration is carried out using deep space and a blackbody inside the instrument as references. The ground segment of MIPAS calibrates the interferogram produced by the space segment and calculates the concentration profiles of the various chemical species. The spectral range is (4.15 - 14.6) um, equivalent to (685 - 2410) cm^-1. The spatial resolution is 3 km (vertical), and the field of view is 3 km by 30 km; the unapodised spectral resolution is 0.035 cm^-1. The radiometric precision is 1% within the (685-970) cm^-1 spectral range, and 3% at 2410 cm^-1. Flown on Envisat. http://www.wmo-sat.info/oscar/instruments/view/286 | ||
| Date | 2016-11-15T15:28:05 | ||
| Identifier | SDN:L22::TOOL1087 | ||
| Note | accepted | ||
| Has Current Version | 1 | ||
| version | 1 | ||
| inScheme | http://vocab.nerc.ac.uk/scheme/SDNDEV/current/ | ||
| Broader | L05:314 |
Atmospheric chemistry remote sensors | Mapping: 885534 |
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