Arid
DOI10.1117/12.2061098
Status of Time-dependent Response versus scan-angle (RVS) for Terra and Aqua MODIS Reflective Solar Bands
Geng, Xu; Angal, Amit; Sun, Junqiang; Chen, Hongda; Wu, Aisheng; Li, Yonghong; Link, Daniel; Xiong, Xiaoxiong
通讯作者Geng, Xu
会议名称Conference on Earth Observing Systems XIX
会议日期AUG 18-20, 2014
会议地点San Diego, CA
英文摘要

The MODerate resolution Imaging Spectroradiometer (MODIS) has 20 reflective solar bands (RSB), which are calibrated using a solar diffuser (SD) and near-monthly scheduled lunar observations via a space view (SV) port. The sensor responses observed at two different angles of incidence (AOI) from the SD and lunar measurements are used to track the on-orbit RSB gain changes as well as the response versus scan-angle (RVS) changes. The MODIS RSB have experienced wavelength dependent degradation since launch with the larger degradation observed at the shorter wavelengths. In addition to the SD and lunar observations, the MODIS Characterization Support Team (MCST) regularly monitors the response trending at multiple AOI over selected desert sites. In Collection 6 (C6), a new algorithm using the EV measurements from pseudoinvariant desert sites was developed to better characterize the MODIS scan-angle dependence and it led to a significant improvement in the long-term calibration consistency of the MODIS Level 1B (L1B) products. This approach is formulated for all RSB, and its application was recently extended to Terra band 10, leading to a significant improvement in the ocean-color products. This paper discusses the current status and performance of the on-orbit RVS characterization as applied in C6. Also, the various challenges and future improvement strategies associated with trending the EV response for the high-gain ocean bands are discussed.


英文关键词MODIS Terra Aqua Reflective solar bands Response versus scan-angle
来源出版物EARTH OBSERVING SYSTEMS XIX
ISSN0277-786X
出版年2014
卷号9218
EISBN978-1-62841-245-1
出版者SPIE-INT SOC OPTICAL ENGINEERING
类型Proceedings Paper
语种英语
国家USA
收录类别CPCI-S
WOS记录号WOS:000348319500051
WOS关键词CALIBRATION
WOS类目Remote Sensing ; Optics
WOS研究方向Remote Sensing ; Optics
资源类型会议论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/302998
作者单位Sigma Space Corp, 4601 Forbes Blvd, Lanham, MD 20706 USA
推荐引用方式
GB/T 7714
Geng, Xu,Angal, Amit,Sun, Junqiang,et al. Status of Time-dependent Response versus scan-angle (RVS) for Terra and Aqua MODIS Reflective Solar Bands[C]:SPIE-INT SOC OPTICAL ENGINEERING,2014.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Geng, Xu]的文章
[Angal, Amit]的文章
[Sun, Junqiang]的文章
百度学术
百度学术中相似的文章
[Geng, Xu]的文章
[Angal, Amit]的文章
[Sun, Junqiang]的文章
必应学术
必应学术中相似的文章
[Geng, Xu]的文章
[Angal, Amit]的文章
[Sun, Junqiang]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。