Journal Article10.1016/J.RSE.2005.10.008
Estimating accuracy in optimal deconvolution of synthetic AMSR-E observations
TL;DR: In this paper, the authors used the footprint overlap in microwave observations to estimate the earth's brightness temperatures (TB) and compared the accuracy of ODC-estimated TB compared with a standard averaging technique because brightness temperatures cannot be independently verified, they constructed synthetic True TB for accuracy assessment.
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About: This article is published in Remote Sensing of Environment. The article was published on 15 Jan 2006.
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Citations
The development of an algorithm to enhance and match the resolution of satellite measurements from AMSR-E
TL;DR: The Backus-Gilbert method has been applied to the AMSR-E data, which covered the Mexico Gulf and the Amazon River, and the resolution was enhanced, and detailed information was obtained and compared with visible high resolution data.
21
An improved non-linear inter-calibration method on different radiometers for enhancing coverage of daily LST estimates in low latitudes
Peilin Song,Yongqiang Zhang +1 more
TL;DR: In this paper, an improved non-linear model was proposed for calibrating MWRI TB against AMSR-2 TB at 18.7 GHz and 23.8 GHz channels, and the results indicated that the improved inter-calibration method is effective for obtaining daily LST datasets with quasi-complete global coverage and reliable accuracy.
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Impacts of Spatial Scaling Errors on Soil Moisture Retrieval Accuracy at L-Band
TL;DR: A parameterization for effective optical depth based on the standard deviation of optical depth within a footprint is developed in order to improve soil moisture retrieval in the presence of highly variable vegetation density.
19
Soil Moisture From the Advanced Microwave Scanning Radiometer (AMSR) Instruments
E.G. Njoku,S. Chan +1 more
- 01 Jan 2018
TL;DR: The AMSR data have been used to study water-related geophysical phenomena of the Earth's ocean, ice and land surfaces, and lower atmosphere as discussed by the authors, with a brief discussion on data validation and data product applications.
4
An Observing System Simulation Experiment for the Aquarius/SAC-D Soil Moisture Product
TL;DR: Results show that, in heavily vegetated areas, soil moisture retrievals have a positive bias that can be suppressed with an alternative aggregation strategy for ancillary parameter vegetation water content (VWC), and retrieval accuracy was evaluated when adding errors to 1-km VWC.
4
References
Optimum interpolation of imaging microwave radiometer data
TL;DR: In this paper, a technique of interpolating imaging microwave radiometer data is presented as an application of the Backus-Gilbert theory, which is applied to the Special Sensor Microwave/Imager (SSM/I) satellite data and is found to enhance the high-resolution features of the imagery.
193
Passive active L- and S-band (PALS) microwave sensor for ocean salinity and soil moisture measurements
William J. Wilson,Simon Yueh,Steven J. Dinardo,S.L. Chazanoff,A. Kitiyakara,F.K. Li,Yahya Rahmat-Samii +6 more
TL;DR: A passive/active WS-band (PALS) microwave aircraft instrument to measure ocean salinity and soil moisture has been built and tested and indicated a clear and repeatable salinity signal during these three days, which was in good agreement with the Cape Hatteras ship salinity data.
141
Spatial resolution enhancement of terrestrial features using deconvolved SSM/I microwave brightness temperatures
M.R. Farrar,Eric A. Smith +1 more
TL;DR: A method for enhancing the 19, 22, and 37-GHz measurements of the SSM/I (Special Sensor Microwave/Imager) to the spatial resolution and sampling density of the high-resolution 85-GHz channel is presented.
113
A technique for enhancing and matching the resolution of microwave measurements from the SSM/I instrument
TL;DR: A correction technique for matching the resolution of all the frequencies of the SSM/I to the 25-km spatial resolution of the 37-GHz channel is described and it is found that the approach produces adequate enhancement of the spatial resolution to make such a correction worthwhile.
85
Parameter sensitivity of soil moisture retrievals from airborne C- and X-band radiometer measurements in SMEX02
TL;DR: It is concluded that for regions with substantial vegetation, particularly where the vegetation is changing rapidly, any soil moisture retrieval algorithm will require multiple frequencies, polarizations, or look angles to produce stable, reliable soil moisture estimates.
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