Validation of MODIS albedo product by using field measurements and airborne multi-angular remote sensing observations

被引：0

作者：

Wang, JD ^{[1
]}

Jiao, ZT ^{[1
]}

Gao, F ^{[1
]}

Xie, L ^{[1
]}

Yan, GJ ^{[1
]}

Xiang, YQ ^{[1
]}

Liang, SL ^{[1
]}

Li, XW ^{[1
]}

机构：

[1] Beijing Normal Univ, Ctr Remote Sensing, Beijing 100875, Peoples R China

来源：

IGARSS 2003: IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS I - VII, PROCEEDINGS: LEARNING FROM EARTH'S SHAPES AND SIZES | 2003年

关键词：

albedo; Kernel-based model; inversion; multi angular remote sensing (MARS);

D O I：

暂无

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

dAlbedo is a key parameter in monitoring the energy exchanges between the solar radiations and the land,surfaces. The MODIS team generates the albedo products every 16 days. The products need to be validated by ground truths under different environmental conditions. In this study, we developed a 3-step validation procedure. The Ambrals (Algorithm for Modeling Bidirectional Reflectance Anisotropies of the Land Surface) model inversion was used to retrieve the albedo from the measured BRDF data over the winter wheat fields at the point/plot scale. And then, as our second step, the albedo values from the Airborne Multiangular Thermal-infrared Imaging System (AMTIS) over the same target area were estimated and validated using the ground point measurements. Finally, the retrieved albedo from airborne data were aggregated and compared with the MODIS albedo products. Our validation procedure has demonstrated a practical method to validate that albedo from spacebrone remotely sensed data (e.g., MODIS). The validation results show that the MODIS albedo products are reasonably good.

引用

页码：1888 / 1890

页数：3