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A sensitivity study of land surface temperature to soil moisture using in-situ and spaceborne observations

AuthorsPablos, Miriam ; Piles, María ; Sánchez, Nilda; González, Verónica ; Vall-llossera, Mercè; Camps, Adriano ; Martínez-Fernández, José
KeywordsLand surface temperature
Surface soil moisture
Passive microwave remote sensing
L-band radiometer
TIR sensors
REMEDHUS network
Terra/Aqua mission
SMOS mission
Soil Moisture and Ocean Salinity
Issue Date2014
PublisherInstitute of Electrical and Electronics Engineers
CitationGeoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International. Proceedings: 3267-3269 (2014)
AbstractSurface Soil Moisture (SSM) affects the soil surface energy balance and thus affects the Land Surface Temperature (LST), and viceversa. Currently, LST and SSM are remotely sensed using TIR sensors and L-band radiometers, respectively. The NASA's Terra/Aqua missions provide full coverage of LST measurements under clear sky conditions using MODIS. The ESA's SMOS mission is the first satellite providing frequent SSM and ocean salinity observations at global scale. In this paper, a sensitivity study about the relationship of the LST and SSM is performed using in-situ measurements from the REMEDHUS network and spaceborne observations from MODIS and SMOS. Results show that the correlation between SSM and LST (both in-situ and remotely sensed) is highest using the daily maximum LST. This could help improving SSM algorithms and deriving new SSM products at higher resolution from the synergy of microwave and TIR observations
Description2014 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2014) & 35th Canadian Symposium on Remote Sensing, 13-18 july 2014, Québec City, Québec, Canada.-- 3 pages, 3 figures
Publisher version (URL)http://dx.doi.org/10.1109/IGARSS.2014.6947176
Identifiersdoi: 10.1109/IGARSS.2014.6947176
isbn: 978-1-4799-5775-0
Appears in Collections:(ICM) Libros y partes de libros
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