Paper Info
Title
Soil Moisture Retrieval Using an L-Band Synthetic Aperture Radiometer During the Soil Moisture Experiments 2003 (SMEX03) and 2004 (SMEX04)
Abstract
There is growing evidence suggesting that accurate soil moisture measurements play an important role in predicting seasonal variability of precipitation and surface temperature. It can also improve our capability to monitor drought and vegetation water stress, and to forecast flood-risk and surface energy fluxes. Spaceborne microwave mission has been an essential part of Earth science community's efforts to achieve the global-scale mapping of soil moisture. Current spaceborne C- and X- band microwave instruments such as the AMSR-E onboard NASA Aqua can map global surface soil moisture every 1 to 3 days. The lack of low-frequency microwave mission, however, limits the ability to estimate soil moisture in moderate-to-high vegetated regions. Future satellite missions utilizing L-band (~ 1.4 GHz) instruments, e.g., SMOS by ESA and Aquarius by NASA, have the potential to further improve the sensing capability of soil moisture from space. L-band microwave is known to be the optimal choice for remote sensing of soil moisture, however, algorithms still need to be tested for a wider range of land surface conditions. The large difference that exists between the truck/tower and satellite footprints makes it difficult to directly relate them. Therefore, airborne experiments using an L-band microwave instrument over various land covers can play a crucial role by providing new data that bridges the gap between these two distinct footprint scales. In this work, we present radiometric observations made by an airborne L-band instrument, the Two-Dimensional Synthetic Aperture Radiometer (2D-STAR), collected during the Soil Moisture Experiments in 2003 (SMEX03) and 2004 (SMEX04).
Year
DOI
Venue
2008
10.1109/IGARSS.2008.4778970
IGARSS
Keywords
Field
DocType
surface temperature,low frequency,plains,crops,moisture,forest,water stress,surface roughness,rough surfaces,l band,information retrieval,remote sensing,soil moisture,synthetic aperture radar,temperature,hydrology,surface energy,surface topography
Soil science,Moisture,Topographic map,Hydrology,Computer science,Synthetic aperture radar,Shrub,Remote sensing,Microwave imaging,Water content,Land cover,Microwave radiometer
Conference
Citations 
PageRank 
References 
1
0.36
1
Authors
5
Name
Order
Citations
PageRank
Dongryeol Ryu1589.54
Thomas J. Jackson21368247.01
Rajat Bindlish323534.58
David M. Le Vine425637.30
Michael Haken516845.02