Inter-calibration Results of the Advanced Microwave Scanning Radiometer-2 Over Ocean

Author

Alsweiss, Suleiman O. ; Jelenak, Zorana ; Chang, Paul S. ; Jun Dong Park ; Meyers, Patrick

Author_Institution

Center for Satellite Applic. & Res., Nat. Oceanic & Atmos. Adm., College Park, MD, USA

Volume

8

Issue

9

fYear

2015

Firstpage

4230

Lastpage

4238

Abstract

In this paper, the oceanic radiometric calibration biases of the Advanced Microwave Scanning Radiometer-2 (AMSR2) onboard the Global Change Observation Mission-Water (GCOM-W1) are analyzed. The double difference (DD) approach is utilized to perform inter-sensor inter-calibration for AMSR2 with the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) as the reference radiometer. This technique utilizes radiative transfer model (RTM) simulations and near-simultaneous clear-sky ocean-only observed brightness temperatures from the two microwave radiometers to estimate and correct the radiometric biases of ocean scenes for AMSR2 on a channel by channel basis.

Keywords

calibration; oceanographic equipment; oceanographic techniques; radiometers; Advanced Microwave Scanning Radiometer-2; Global Change Observation Mission-Water; Tropical Rainfall Measuring Mission; double difference approach; inter-sensor inter-calibration; microwave imager; near-simultaneous clear-sky ocean-only brightness temperatures; oceanic radiometric calibration biases; radiative transfer model simulations; reference radiometer; Instruments; Microwave FET integrated circuits; Microwave imaging; Microwave integrated circuits; Microwave measurement; Microwave radiometry; Microwave theory and techniques; Advanced Microwave Scanning Radiometer-2 (AMSR2); Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI); double difference (DD); inter-calibration; ocean;

fLanguage

English

Journal_Title

Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of

Publisher

ieee

ISSN

1939-1404

Type

jour

DOI

10.1109/JSTARS.2014.2330980

Filename

6847110