DOI: 10.1016/j.jag.2015.04.004
Scopus记录号: 2-s2.0-84943636344
论文题名: Development of a scheme for atmospheric correction of Resourcesat-2 AWiFS data
作者: Pandya M ; R ; , Pathak V ; N ; , Shah D ; B ; , Trivedi H ; J ; , Chipade R ; A ; , Singh R ; P ; , Kirankumar A ; S
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2015
卷: 40 起始页码: 65
结束页码: 73
语种: 英语
英文关键词: Atmospheric correction
; AWiFS
; IRS
; Resourcesat
; SACRS2
; Surface reflectance
Scopus关键词: aerosol property
; atmospheric correction
; IRS (satellite)
; ozone
; radiative transfer
; remote sensing
; Resourcesat
; satellite data
; surface reflectance
; water vapor
英文摘要: This paper presents a method called SACRS2, a scheme for atmospheric correction of RS2-AWiFS (Resourcesat2-Advanced Wide Field Sensor) data. The SACRS2 is a computationally fast scheme developed from a physics-based detailed radiative transfer model 6SV for correcting large amount of data from the high-repetivity AWiFS sensor. The method is based on deriving a set of equations with coefficients which depend on the spectral bands of the RS2-AWiFS sensor through forward signal simulations by 6SV. Semi-empirical formulations provided in the SMAC method with a few improvements have been used to describe various atmospheric interactions. A total of 112 coefficients for different equations are determined using the best fit equations against the computations of the 6SV. After the specific coefficients for the RS2-AWiFS spectral bands are determined, the major inputs of the scheme are raw digital numbers recorded by RS2-AWiFS sensor, atmospheric columnar water vapour content, ozone content, aerosol optical thickness at 550nm and viewing-illumination conditions. Results showed a good performance of the SACRS2 with a maximum relative error in the SACRS2 simulations ranged between 1% for a reflectance of 0.5 and 8.6% for reflectance of 0.05 with respect to 6SV computations. Validation of retrieved surface reflectance using the SACRS2 scheme with respect to in-situ measurements at two sites indicated a capability of this scheme to determine the surface reflectance within 10%. This is a first of its kind scheme developed for the atmospheric correction of any Indian Remote Sensing satellite data. A package containing the SACRS2 software is available on the MOSDAC website for the researchers. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79606
Appears in Collections: 气候变化事实与影响
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作者单位: Space Applications Centre, ISRO, Ahmedabad, India; Department of Physics, S. P. University, Vallabh Vidyanagar, India; N. V. Patel College of Pure and Applied Sciences, Vallabh Vidyanagar, India; Sir P.T. Sarvajanik College of Science, Surat, India
Recommended Citation:
Pandya M,R,, Pathak V,et al. Development of a scheme for atmospheric correction of Resourcesat-2 AWiFS data[J]. International Journal of Applied Earth Observation and Geoinformation,2015-01-01,40