SciSat-1: ACE-FTS and MAESTRO
type: Dataset
keyword: DIF10
keyword: EARTH SCIENCE>ATMOSPHERE
keyword: EARTH SCIENCE>ATMOSPHERE>AIR QUALITY
keyword: EARTH SCIENCE>CLIMATE INDICATORS>ATMOSPHERIC/OCEAN INDICATORS
keyword: SCISAT-1/ACE
keyword: ACE-FTS
keyword: MAESTRO
keyword: Orthoimagery
keyword: Atmosphere
keyword: Air Quality
keyword: Atmospheric Indicators
keyword: UV (0.01 - 0.4) µm
keyword: VIS (0.40 - 0.75) µm
keyword: NIR (0.75 - 1.30) µm
keyword: SWIR (1.3 - 3.0) µm
keyword: MWIR (3.0 - 6.0) µm
keyword: TIR (6.0 - 15.0) µnm
keyword: Inclined, non-sun-synchronous
keyword: Low Resolution - LR (500 - 1200) m
keyword: Very Low Resolution - VLR (> 1200) m
keyword: 650 km
keyword: 1.25 mrad
keyword: Spectrometers
keyword: RESTRICTED
keyword: ESA_open_and_free
keyword: SCISAT-1
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description: SCISAT-1 data aim at monitoring and analysing the chemical processes that control the distribution of ozone in the upper troposphere and stratosphere. It provides acquisitions from the 2 instruments MAESTRO and ACE-FTS. • MAESTRO: Measurement of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation. Dual-channel optical spectrometer in the spectral region of 285-1030 nm. The objective is to measure ozone, nitrogen dioxide and aerosol/cloud extinction (solar occultation measurements of atmospheric attenuation during satellite sunrise and sunset with the primary objective of assessing the stratospheric ozone budget). Solar occultation spectra are being used for retrieving vertical profiles of temperature and pressure, aerosols, and trace gases (O3, NO2, H2O, OClO, and BrO) involved in middle atmosphere ozone distribution. The use of two overlapping spectrometers (280 - 550 nm, 500 - 1030 nm) improves the stray-light performance. The spectral resolution is about 1-2 nm. • ACE-FTS: Fourier Transform Spectrometer The objective is to measure the vertical distribution of atmospheric trace gases, in particular of the regional polar O3 budget, as well as pressure and temperature (derived from CO2 lines). The instrument is an adapted version of the classical sweeping Michelson interferometer, using an optimized optical layout. The ACE-FTS measurements are recorded every 2 s. This corresponds to a measurement spacing of 2-6 km which decreases at lower altitudes due to refraction. The typical altitude spacing changes with the orbital beta angle. For historical reasons, the retrieved results are interpolated onto a 1 km "grid" using a piecewise quadratic method. For ACE-FTS version 1.0, the results were reported only on the interpolated grid (every 1 km from 0.5 to 149.5 km). For versions 2.2, both the "retrieval" grid and the "1 km" grid profiles are available. SCISAT-1 collection provides ACE-FTS and MAESTRO Level 2 Data. As of today, ACE-FTS products…
qualified attribution: Attribution
  agent: Organization
    has name: ESA/ESRIN
    has URL: https://www.esa.int
temporal: PeriodOfTime
  start date: 2003-08-13T00:00:00.000Z
license: other