Calibration of the Microwave Limb Sounder on the Upper Atmosphere Research Satellite
| Autor: | G. E. Peckham, Robert Jarnot, R. E. Cofield, Joe W. Waters, D. A. Flower |
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| Rok vydání: | 1996 |
| Předmět: |
Atmospheric Science
Soil Science Aquatic Science Oceanography Geochemistry and Petrology Earth and Planetary Sciences (miscellaneous) Calibration Astrophysics::Solar and Stellar Astrophysics Physics::Atmospheric and Oceanic Physics Earth-Surface Processes Water Science and Technology Remote sensing Noise temperature Radiometer Ecology Dynamic range Astrophysics::Instrumentation and Methods for Astrophysics Paleontology Forestry Microwave Limb Sounder Geophysics Space and Planetary Science Radiance Environmental science Satellite Astrophysics::Earth and Planetary Astrophysics Noise (radio) |
| Zdroj: | Journal of Geophysical Research: Atmospheres. 101:9957-9982 |
| ISSN: | 0148-0227 |
| DOI: | 10.1029/95jd03792 |
| Popis: | The Microwave Limb Sounder (MLS) is a three-radiometer, passive, limb emission instrument onboard the Upper Atmosphere Research Satellite (UARS). Radiometric, spectral and field-of-view calibrations of the MLS instrument are described in this paper. In-orbit noise performance, gain stability, spectral baseline and dynamic range are described, as well as use of in-flight data for validation and refinement of prelaunch calibrations. Estimated systematic scaling uncertainties (3σ) on calibrated limb radiances from prelaunch calibrations are 2.6% in bands 1 through 3, 3.4% in band 4, and 6% in band 5. The observed systematic errors in band 6 are ∼15%, consistent with prelaunch calibration uncertainties. Random uncertainties on individual limb radiance measurements are very close to the levels predicted from measured radiometer noise temperature, with negligible contribution from noise and drifts on the regular in-flight gain calibration measurements. |
| Databáze: | OpenAIRE |
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