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The L-band PBMR measurements of surface soil moisture in FIFE

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4 Author(s)
Wang, J.R. ; NASA Goddard Space Flight Center, Greenbelt, MD, USA ; Shiue, James C. ; Schmugge, T.J. ; Engman, Edwin T.

The NASA Langley Research Center's L-band pushbroom microwave radiometer (PBMR) aboard the NASA C-130 aircraft was used to map surface soil moisture at and around the Konza Prairie Natural Research Area in Kansas during the four intensive field campaigns of FIFE in May-October 1987. A total of 11 measurements were made when soils were known to be saturated. This measurement was used for the calibration of the vegetation effect on the microwave absorption. Based on this calibration, the data from other measurements on other days were inverted to generate soil moisture maps. Good agreement was found when the estimated soil moisture values were compared with those independently measured on the ground at a number of widely separated locations. There was a slight bias between the estimated and measured values, the estimated soil moisture on the average being lower by about 1.8%

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Geoscience and Remote Sensing, IEEE Transactions on  (Volume:28 ,  Issue: 5 )