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Sensors 2008, 8(12), 8016-8026; doi:10.3390/s8128016

Retrieval of Surface Air Specific Humidity Over the Ocean Using AMSR-E Measurements

School of Marine Science and Technology, Tokai University/ Orido, 3-20-1, Shimizu, Shizuoka, Shizuoka, Japan 424-8610
*
Author to whom correspondence should be addressed.
Received: 7 October 2008 / Revised: 29 November 2008 / Accepted: 3 December 2008 / Published: 8 December 2008
(This article belongs to the Special Issue Ocean Remote Sensing)
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Abstract

We have developed a new algorithm to estimate the surface air specific humidity over the ocean from AMSR-E data. It should be noted that remarkably reduced random errors of the estimated surface air specific humidity result from using the surface air specific humidity provided by reanalysis data. We validated our new algorithm using independent ship and buoy data. The bias, RMS error, and correlation coefficient of the products obtained using our algorithm for global buoys are 0.38 g/kg, 0.61 g/kg and 0.99, respectively. It should be noted that surface specific humidity having similar accuracy to the reanalysis data near in situ data could be derived from AMSR-E data by the present algorithm.
Keywords: AMSR-E; surface air specific humidity; ocean; microwave radiometer AMSR-E; surface air specific humidity; ocean; microwave radiometer
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Kubota, M.; Hihara, T. Retrieval of Surface Air Specific Humidity Over the Ocean Using AMSR-E Measurements. Sensors 2008, 8, 8016-8026.

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