A comparison between two algorithms for the retrieval of soil moisture using AMSR-E data
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چکیده
منابع مشابه
A comparison between two algorithms for the retrieval of soil moisture using AMSR-E data
A comparison between two algorithms for estimating soil moisture with microwave satellite data was carried out by using the datasets collected on the four Agricultural Research Service (ARS) watershed sites in the US from 2002 to 2009. These sites collectively represent a wide range of ground conditions and precipitation regimes (from natural to agricultural surfaces and from desert to humid re...
متن کاملSoil moisture retrieval from AMSR-E
The Advanced Microwave Scanning Radiometer (AMSR-E) on the Earth Observing System (EOS) Aqua satellite was launched on May 4, 2002. The AMSR-E instrument provides a potentially improved soil moisture sensing capability over previous spaceborne radiometers such as the Scanning Multichannel Microwave Radiometer and Special Sensor Microwave/Imager due to its combination of low frequency and higher...
متن کاملSoil moisture retrieval over the Mackenzie River basin using AMSR-E 6.9 GHz brightness temperature
An approach is proposed to estimate soil moisture and to monitor its change from AMSR-E 6.9 GHz passive microwave data acquired over a large northern basin. The lack of in situ direct measurements is a major issue to be resolved to reach the aim of this work. Therefore, “external” ancillary data were used as a surrogate for available measurements. The methodology is based on the inversion of a ...
متن کاملRetrieval of Soil Moisture Data at Global Scales with Amsr-e
An algorithm for the estimate of the soil moisture content on a global scale from dual-frequency (Cand Xbands) microwave data of the Advanced Microwave Scanning Radiometer (AMSR-E) is presented in this paper. The algorithm is based on the brightness temperature at C-band and uses the Polarization Index at X-band to correct for vegetation effects. The retrieval is obtained by inverting a simplif...
متن کاملA Pre-operational Algorithm for the Retrieval of Snow Water Equivalent and Soil Moisture from Amsr-e Data
During the past decades, natural hazards such as floods, landslides and forest fires have caused major loss of human lives and the destruction of economic land social infrastructure, as well as environmental damages. The Italian National Project: PROSA (PRodotti di Osservazione Satellitari per l'Allerta Meteorologica) is a pilot project funded by the Italian Space Agency, which aims at contribu...
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ژورنال
عنوان ژورنال: Frontiers in Earth Science
سال: 2015
ISSN: 2296-6463
DOI: 10.3389/feart.2015.00016