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Utilizing Brightness Temperature Histograms for Microwave Radiometer High Frequency (150–183 GHz) Calibration
- Source :
- IGARSS
- Publication Year :
- 2018
- Publisher :
- IEEE, 2018.
-
Abstract
- Spaceborne microwave radiometers with high frequency channels (150 – 183 GHz) are important for retrieving many geophysical parameters such as snowfall, ice water path, and atmospheric water vapor profiles. In order to obtain accurate retrievals from the brightness temperature measurements, the radiometers must be properly calibrated. Several methods have been developed to analyze the on-orbit calibration, including comparisons with radiative transfer models, comparisons with radiosonde profiles, and cross-calibration with similar radiometers. This paper introduces a new method to calibrate high frequency channels that utilizes TB histograms. This new method gives an independent approach that can be used by itself to analyze radiometer calibration or in conjunction with other methods to corroborate results.
- Subjects :
- Radiometer
010504 meteorology & atmospheric sciences
Microwave radiometer
Astrophysics::Instrumentation and Methods for Astrophysics
0211 other engineering and technologies
02 engineering and technology
01 natural sciences
Physics::Geophysics
law.invention
Microwave imaging
law
Brightness temperature
Radiosonde
Radiative transfer
Calibration
Environmental science
Physics::Atmospheric and Oceanic Physics
Microwave
021101 geological & geomatics engineering
0105 earth and related environmental sciences
Remote sensing
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium
- Accession number :
- edsair.doi...........e643d4d6505e8c25830f93ba0fd938b4