A diurnal difference indicator for freeze-thaw monitoring from Ku band scatterometer applied within the Siberia II project

Author

Kidd, Richard ; Scipal, Klaus ; Bartalis, Zoltan ; Wagner, Wolfgang

Author_Institution

Inst. of Photogrammetry & Remote Sensing, Vienna Univ. of Technol.

Volume

3

fYear

2004

fDate

20-24 Sept. 2004

Firstpage

1671

Abstract

We present and assess a diurnal difference indicator that is related directly to the seasonal freeze-thaw effects, focusing, in this paper, primarily on the onset of snowmelt and terrestrial thawing. In order to be able to provide a level of certainty with the indicator our approach is based upon the development, and application, of a noise model that accounts for instrument noise, speckle, spatial heterogeneity, "environmental" noise and the influence of azimuth angle at which the measurement was acquired

Keywords

atmospheric composition; atmospheric techniques; atmospheric temperature; climatology; geophysical equipment; melting; snow; vegetation mapping; Ku band scatterometer; Siberia II project; atmospheric composition; atmospheric temperature; azimuth angle influence; climatology; diurnal difference indicator; environmental noise; freeze-thaw monitoring; instrument noise; noise model; seasonal freeze-thaw effects; snowmelt; spatial heterogeneity; speckle; terrestrial thawing; vegetation mapping; Backscatter; Carbon dioxide; Data mining; Earth; Noise level; Radar measurements; Remote monitoring; Sampling methods; Scattering; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International

Conference_Location

Anchorage, AK

Print_ISBN

0-7803-8742-2

Type

conf

DOI

10.1109/IGARSS.2004.1370651

Filename

1370651