Spatial Resolution Enhancement of AMSR Tb Images based on Measurement Local Time of Day

Author

Gunn, Brian A. ; Long, David G.

Author_Institution

Brigham Young Univ., Provo, UT

Volume

5

fYear

2008

fDate

7-11 July 2008

Abstract

Advanced Microwave Scanning Radiometer (AMSR) brightness temperature (Tb) data are typically organized into daily average images characterized by compromised temporal resolution. An alternate approach considers the location-dependent measurement time of each sample and organizes data by local time-of-day (LTOD), producing bi-daily images with high temporal locality and reduced noise. These LTOD images show greater improvement and fewer artifacts than daily images when spatial resolution enhancement algorithms are applied. LTOD ice edges are on average 8 km closer to MODIS ice edges than daily ice edges.

Keywords

geophysical signal processing; ice; image enhancement; image resolution; radiometers; AMSR TB images; Advanced Microwave Scanning Radiometer; ice edges; local time-of-day; location-dependent measurement time; spatial resolution enhancement; temporal resolution; Clouds; Extraterrestrial measurements; Ice; Image resolution; MODIS; Microwave radiometry; Ocean temperature; Sea measurements; Spatial resolution; Time measurement; Ice Concentrations; Ice Edges; Polar Studies; Remote Sensing; Spatial Resoluton Enhancement; Temporal Resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International

Conference_Location

Boston, MA

Print_ISBN

978-1-4244-2807-6

Electronic_ISBN

978-1-4244-2808-3

Type

conf

DOI

10.1109/IGARSS.2008.4780020

Filename

4780020