NDLI: A simplified split-window method for retrieving precipitable water over land area using Advanced Very High Resolution Radiometer

Content Provider	IEEE Xplore Digital Library
Author	Yanxia Du Lisheng Xu Yansong Fang Yujie Zhang Jilie Ding Hailei Liu Xiaobo Deng
Copyright Year	2010
Description	Author affiliation: Shandong Meteorological Bureau, Jinan, China 250031 (Yansong Fang; Yujie Zhang) \|\| Atmospheric Radiation & Satellite Remote Sensing Lab, College of Atmospheric Sounding, Chengdu University of Information Technology, China 610225 (Yanxia Du; Lisheng Xu; Jilie Ding; Hailei Liu; Xiaobo Deng)
Abstract	Some retrieval methods for estimating the atmospheric precipitable water (PW) were reviewed in the study. Then, an improved physically algorithm for the retrieval of PW over cloud-free land surfaces based on the split-window covariance-variance ratio technique (SWCVR) was proposed. The thermal infrared split window channels at 11 and 12 µm of the Advanced Very High Resolution Radiometer(AVHRR) instrument were used. The improved method for estimating the PW is simplified, which is based on a linear relationship between the PW and the ratio of the two split-window channel transmittances (τ12/τ11). The new PW retrieval algorithm was tested with the comparisons from both AVHRR and radiosonde observations in some places of South China. The preliminary results show that the algorithm proposed for estimating PW is acceptable since a RMSE of 0.44 cm is obtained.
Starting Page	100
Ending Page	103
File Size	652004
Page Count	4
File Format	PDF
ISBN	9781424485147
e-ISBN	9781424485178
DOI	10.1109/IITA-GRS.2010.5602959
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-08-28
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Satellites Split-window channels Atmospheric measurements Atmospheric modeling Precipitable water retrieval Satellite broadcasting Transmittance ratio Radiosondes Mathematical model Remote sensing AVHRR
Content Type	Text
Resource Type	Article

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