Retrieval of columnar water vapor using multispectral radiometer measurements over northern China

Chaoshun Liu; Yun Li; Wei Gao; Runhe Shi; Kaixu Bai

doi:10.1117/1.3647483

1 January 2011 Retrieval of columnar water vapor using multispectral radiometer measurements over northern China

Chaoshun Liu, Yun Li, Wei Gao, Runhe Shi, Kaixu Bai

Author Affiliations +

Journal of Applied Remote Sensing, Vol. 5, Issue 1, 053558 (January 2011). https://doi.org/10.1117/1.3647483

Abstract

Water vapor is an important component in hydrological processes that basically involve all types of seasons, including dry (e.g., drought) or wet (e.g., hurricane or monsoon). This study retrieved columnar water vapor (CWV) with the 939.3 nm band of a multifilter rotating shadowband radiometer (MFRSR) using the modified Langley technique. Such an investigation was in concert with the use of the atmospheric transmission model MODTRAN for determining the instrument coefficients required for CWV estimation. Results of the retrieval of CWV by MFRSR from September 23, 2004 to June 20, 2005 at the XiangHe site are presented and analyzed in this paper. To improve the credibility, the MFRSR results were compared with those obtained from the AErosol RObotic NETwork CIMEL sun-photometer measurements, co-located at the XiangHe site, and the moderate resolution imaging spectroradiometer (MODIS) near-infrared total precipitable water product (MOD05), respectively. These comparisons show good agreement in terms of correlation coefficients, slopes, and offsets, revealing that the accuracy of CWV estimation using the MFRSR instrument is reliable and suitable for extended studies in northern China.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Chaoshun Liu, Yun Li, Wei Gao, Runhe Shi, and Kaixu Bai "Retrieval of columnar water vapor using multispectral radiometer measurements over northern China," Journal of Applied Remote Sensing 5(1), 053558 (1 January 2011). https://doi.org/10.1117/1.3647483

Published: 1 January 2011

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available