A Multi-Scale Validation Strategy for Albedo Products over Rugged Terrain and Preliminary Application in Heihe River Basin, China
A Multi-Scale Validation Strategy for Albedo Products over Rugged Terrain and Preliminary Application in Heihe River Basin, China
复制标题
崎岖地形反照率产品多尺度验证策略及在中国黑河流域的初步应用
DOI：
10.3390/rs10020156
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发表时间：
2018-01
期刊：
影响因子：
5
通讯作者：
Wu Xiaodan
中科院分区：
文献类型：
--
作者：
Lin Xingwen;Wen Jianguang;Liu Qinhuo;Xiao Qing;You Dongqin;Wu Shengbiao;Hao Dalei;Wu Xiaodan
地形复杂导致的参考反照率测量值与粗尺度反照率产品之间的尺度效应是起伏地形遥感反照率产品验证的问题。本文给出了一种多尺度验证策略，用于粗糙地形反照率的验证。在将细尺度反照率聚合到粗尺度的多尺度验证策略中，提出了一种基于山辐射传输的反照率升尺度模型。利用参考粗比例尺反照率和参考细比例尺反照率的模拟数据，对基于磁共振成像的反照率升尺度模型的性能和不确定性进行了评估。结果表明，基于mrt的模型能较好地反映高低起伏地形上的反照率尺度效应，为不同平均坡度和不同太阳天顶角条件下的反照率从细尺度向粗尺度升级提供了较好的解决方案。黑天反照率（BSA）和白天反照率（WSA）的均方根误差（RMSE）分别为0.0029和0.0017，与模拟的粗尺度反照率具有较好的一致性。然后，将基于mrt的模型初步应用于崎岖地形上每日MODIS反照率收集V006产品（MCD43A3 C6）的评估。结果表明，基于mrt的模型是有效的，适合在崎岖地形上进行MODIS反照率产品的验证。结果表明，采用全反演算法的MCD43A3 C6产品与黑河流域崎岖地形上粗尺度综合参考反照率基本一致，BSA RMSE为0.0305，WSA RMSE为0.0321，略高于平坦地形上的反照率。
The issue for the validation of land surface remote sensing albedo products over rugged terrain is the scale effects between the reference albedo measurements and coarse scale albedo products, which is caused by the complex topography. This paper illustrates a multi-scale validation strategy specified for coarse scale albedo validation over rugged terrain. A Mountain-Radiation-Transfer-based (MRT-based) albedo upscaling model was proposed in the process of multi-scale validation strategy for aggregating fine scale albedo to coarse scale. The simulated data of both the reference coarse scale albedo and fine scale albedo were used to assess the performance and uncertainties of the MRT-based albedo upscaling model. The results showed that the MRT-based model could reflect the albedo scale effects over rugged terrain and provided a robust solution for albedo upscaling from fine scale to coarse scale with different mean slopes and different solar zenith angles. The upscaled coarse scale albedos had the great agreements with the simulated coarse scale albedo with a Root-Mean-Square-Error (RMSE) of 0.0029 and 0.0017 for black sky albedo (BSA) and white sky albedo (WSA), respectively. Then the MRT-based model was preliminarily applied for the assessment of daily MODerate Resolution Imaging Spectroradiometer (MODIS) Albedo Collection V006 products (MCD43A3 C6) over rugged terrain. Results showed that the MRT-based model was effective and suitable for conducting the validation of MODIS albedo products over rugged terrain. In this research area, it was shown that the MCD43A3 C6 products with full inversion algorithm, were generally in agreement with the aggregated coarse scale reference albedos over rugged terrain in the Heihe River Basin, with the BSA RMSE of 0.0305 and WSA RMSE of 0.0321, respectively, which were slightly higher than those over flat terrain.
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影响因子：
8.2
作者：
D. Kimes;J. A. Kirchner
通讯作者：
D. Kimes;J. A. Kirchner
卫星反照率产品多尺度验证策略及其不确定性分析
DOI：
10.1007/s11430-014-4997-y
发表时间：
2015
期刊：
Science China Earth Sciences
影响因子：
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作者：
Peng JingJing;Liu Qiang;Wen JianGuang;Liu QinHuo;Tang Yong;Wang LiZhao;Dou BaoCheng;You DongQin;Sun ChangKui;Zhao XiaoJie;Feng YouBin;Shi Jian
通讯作者：
Shi Jian
影响因子：
3.4
作者：
R. Richter
通讯作者：
R. Richter
影响因子：
--
作者：
W. Lucht
通讯作者：
W. Lucht
DOI：
10.1109/jstars.2012.2186118
发表时间：
2012-08-01
影响因子：
5.5
作者：
Darvishzadeh, Roshanak;Matkan, Ali A.;Ahangar, Abdolhamid Dashti
通讯作者：
Ahangar, Abdolhamid Dashti