Title :
Stability of the vicarious cold calibration statistic for the GPM constellation
Author :
Kroodsma, Rachael ; McKague, Darren ; Puckett, John ; Ruf, Christopher
Author_Institution :
Dept. of Atmos., Oceanic, & Space Sci., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
The vicarious cold calibration statistic has been analyzed to determine its stability. Modeled top of atmosphere brightness temperatures representing microwave radiometer observations are computed for the month of July 2005 using a radiative transfer model. The vicarious cold calibration algorithm is applied to the population of brightness temperatures along with two other statistics for comparison. The stability is assessed by perturbing the sea surface temperatures and atmospheric water vapor in the model to simulate a global warming event. The results show that the vicarious cold calibration statistic is the most stable since it has the least variation for the simulated warming event.
Keywords :
global warming; ocean temperature; radiometry; GPM constellation; atmosphere brightness temperatures; atmospheric water vapor; global warming event; microwave radiometer observations; radiative transfer model; sea surface temperatures; stability; vicarious cold calibration statistic; Atmospheric modeling; Calibration; Electromagnetic heating; Microwave radiometry; Microwave theory and techniques; Ocean temperature; Stability analysis; Calibration; Microwave radiometry;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-9565-8
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2010.5653555
