Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3390/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
![]() |
ISSN | 2072-4292 |
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。