Arid
DOI10.3390/rs10010061
Using a MODIS Index to Quantify MODIS-AVHRRs Spectral Differences in the Visible Band
Fan, Xingwang1,2; Liu, Yuanbo2
通讯作者Liu, Yuanbo
来源期刊REMOTE SENSING
ISSN2072-4292
出版年2018
卷号10期号:1
英文摘要

Spectral band differences are a critical issue for progressing into an integrated earth observation framework and in particular, in sensor intercalibration. The differences are currently normalized using spectral band adjustment factor (SBAF) that is generated from hyperspectral data. In this context, the current study proposes a method for calculating moderate-resolution imaging spectroradiometer (MODIS)-advanced very high resolution radiometers (AVHRRs) SBAF in the visible band, using the MODIS surface reflectance data. The method involves a uniform ratio index calculated using the MODIS 552-nm and 645-nm bands, and a sensor-specific quadratic equation, producing SBAF data at 500-m spatial resolution. The calculated SBAFs are in good agreement at site scale with literature reported data (relative error < 1.0%), and at local scale with Hyperion-derived data (total uncertainty approximate to 0.001), and significantly improve MODIS-AVHRR surface reflectance data consistency in the visible band (better than 1.0% reflectance units). The calculation is more sensitive to atmospheric effects over the vegetated areas. At global scale, MODIS-AVHRRs SBAFs are generally large (>1.0) over densely vegetated areas and extremely low over deserts and barren lands (0.96-0.98), indicative of large MODIS-AVHRRs differences. Deserts show temporally stable SBAF values, while still suffer from intra-annual BRDF effects and short-term cloud contamination. By means of daily MODIS data, the proposed method can produce ongoing SBAF data at a spatial scale that is comparable to AVHRRs. It increases the sampling of MODIS-AVHRRs image pairs for intercalibration, and offers insight into spectral band conversion, finally contributing to an integrated earth observation at moderate spatial resolutions.


英文关键词advanced very high resolution radiometers moderate-resolution imaging spectroradiometer surface reflectance sensor difference spectral band adjustment factor
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000424092300060
WOS关键词RADIOMETRIC CROSS-CALIBRATION ; EO-1 HYPERION DATA ; SURFACE REFLECTANCE ; SATELLITE SENSORS ; TIME-SERIES ; RESPONSE FUNCTIONS ; LANDSAT-7 ETM+ ; CCD CAMERA ; PART I ; INTERCALIBRATION
WOS类目Remote Sensing
WOS研究方向Remote Sensing
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/212590
作者单位1.Chinese Acad Sci, Key Lab Watershed Geog Sci, Nanjing 210008, Jiangsu, Peoples R China;
2.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714
Fan, Xingwang,Liu, Yuanbo. Using a MODIS Index to Quantify MODIS-AVHRRs Spectral Differences in the Visible Band[J],2018,10(1).
APA Fan, Xingwang,&Liu, Yuanbo.(2018).Using a MODIS Index to Quantify MODIS-AVHRRs Spectral Differences in the Visible Band.REMOTE SENSING,10(1).
MLA Fan, Xingwang,et al."Using a MODIS Index to Quantify MODIS-AVHRRs Spectral Differences in the Visible Band".REMOTE SENSING 10.1(2018).
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
[Fan, Xingwang]的文章
[Liu, Yuanbo]的文章
百度学术
百度学术中相似的文章
[Fan, Xingwang]的文章
[Liu, Yuanbo]的文章
必应学术
必应学术中相似的文章
[Fan, Xingwang]的文章
[Liu, Yuanbo]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。