Temporal and spatial dynamics of C-band brightness temperature over the Brazilian tropical savanna

Author

Giarolla, Angélica ; Sano, Edson E. ; Adami, Marcos ; Jackson, Thomas J.

Author_Institution

Inst. Nacional de Pesquisas Espaciais, Cachoeira Paulista

fYear

2007

fDate

23-28 July 2007

Firstpage

1861

Lastpage

1864

Abstract

The soil moisture is one of the key hydrological parameters that control the water and energy flows between the atmosphere and land surface, the partitioning of rainfall into infiltration, runoff and evapotranspiration, the photosynthetic activities of vegetation, and the respiration of soil microorganisms. Conventional methods of measuring soil moisture are time-consuming and the data are typically point-based estimates. This study presents the results of spatial and temporal variation analyses of Aqua/AMSR-E brightness temperature data from the Brazilian tropical savanna.

Keywords

brightness; hydrology; land surface temperature; microwave imaging; soil; vegetation; Aqua/AMSR-E; Brazilian tropical savanna; c-band brightness temperature; energy flows; evapotranspiration; hydrological parameters; infiltration; land surface; photosynthesis; rainfall; runoff; soil microorganisms; soil moisture; spatial dynamics; temporal dynamics; vegetation; water flows; Atmosphere; Atmospheric measurements; Brightness temperature; Land surface; Microorganisms; Moisture control; Moisture measurement; Soil measurements; Soil moisture; Vegetation; Aqua/AMSR-E; microwave; soil moisture;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International

Conference_Location

Barcelona

Print_ISBN

978-1-4244-1211-2

Electronic_ISBN

978-1-4244-1212-9

Type

conf

DOI

10.1109/IGARSS.2007.4423186

Filename

4423186