Technology for Small Spacecraft (1994) / Chapter Skim
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Appendix F: NASA Earth-Observing Instruments
Appendix F: NASA Earth-Observing Instruments
Pages 133-140
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From page 133... ...
Appendix F: NASA Earth-Observing Instruments 133
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From page 134... ...
Active Cavity Radiometer Will extend the long-term solar 39 40 Under JPL Irradiance Monitor luminosity data base, providing a development long-term precision of 5 parts per million per year in its monitoring of the variability of total solar irradiance. Atmospheric Infrared High-resolution, high-precision 140 240 Phase C/D Loral Sounder sounder employing 2,300 (since 1991)
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From page 135... ...
Status Developer Clouds and Earth's Radiant Energy System Ocean Color Instrument Earth Observing Scanning Polarimeter Lightning Imaging Sensor Will provide an accurate, selfconsistent cloud and radiation data base. Clouds and Earth's Radiant Energy System employs two broadband scanning radiometers, with each radiometer having three channels.
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From page 136... ...
The molecules to be studied include 03, H2O, CH4, N2O, NO2, HNO3, N2O5, CFC,,, and CFC,2. Multifrequeney Imaging Passive microwave radiometer that 223 200 Phase B Alenia Microwave Radiometer measures precipitation rate, cloud Phase C/D in water content, atmospheric water 1995 vapor, sea-surface roughness, sea surfaee temperature, global ice and snow cover, and soil moisture.
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From page 137... ...
Solar Stellar Irradiance Four-channelprecision ultraviolet 99.5 42 Phase C/D start National Comparison Experiment II spectrometer that provides daily date has not Center for measurements of the full-disk solar been set Atmospheric ultraviolet irradiance with calibration Research maintained by comparison of the signal with that from bright, early type stars. The spectral coverage of the instrument is from 5 to 440 nanometers.
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From page 138... ...
The instrument will also characterize upper tropospheric and stratospheric clouds and extend the solar occultation data sets begun in 1978. The instrument uses solar and lunar occultations to measure aerosols and gases in the atmosphere, measuring extinction of transmitted energy in the spectral region from 0.29 to 1.55 micrometers.
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From page 139... ...
Tropospheric Emission Provides very high spectral 340 460 Data not Data not Spectrometer resolution measurements from 2.3 to available available 15.4 micrometers using an infrared imaging Fourier transform technique. Its objective is to produce global three-dimensional profiles of nearly all infrared active gases from the Earth's surface to the lower stratosphere.
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