下载的哨兵二号都是都需要乘以系数0.0001,通常在ENVI中bandmath实现,然而在数据量大时会有诸多不方便。为此通过python,使用gdal库流程化处理。 # -*- coding: utf-8 -*-importnumpyasnpfromosgeoimportgdal,osrimportjson,sys,os,globimportnumpyasnpclassgeotiffinfo():def__init__(self,rows,cols,bands,geo_...
以Sentinel-2A影像为数据源, 首先使用Sobol方法对PROSAIL模型进行参数敏感性分析, 量化各参数对可见光及近红外波段的敏感性, 为LAI反演提供基础, 其次基于MCMC方法对PROSAIL模型进行了参数标定, 目的是提供区域内玉米各参数的取值范围和分布, 获取更为丰富的参数信息, 最终对比分析了参数标定优化前后LAI反演精度差异, 探...
there is a high atmospheric absorption band and only high altitude clouds are detected. However, this last criterion is only applied after a first detection of cloud pixel in the blue band where cirrus
Progress[%]: 20.43 : PID-20076, L2A_Tables: band SNW exported, elapsed time[s]: 0.340, total: 0:08:42.378000 Progress[%]: 20.45 : PID-20076, L2A_Tables: band CLD exported, elapsed time[s]: 0.503, total: 0:08:42.881000 Progress[%]: 20.47 : PID-20076, L2A_Tables: band AOT exp...
adapt and cope with the effects of such a scenario include integrated water resources management and increased monitoring [7,8]. For instance, the space and time distribution of irrigated areas is a necessary input to simulate the water withdrawal that is crucial information for effective water man...
By using band combinations, we can extract specific information from an image. For example, there areband combinationsthat highlight geologic, agricultural, or vegetation features in an image. If you want to see Sentinel band combinations for yourself, you can check out theSentinel Playground. It...
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Sentinel-2A be able to distinguish between different crop types and will deliver timely data on numerous plant indices, such as leaf area index.
Continuity with Sentinel-2C The Airbus-built Sentinel-2C is the third in this vital Earth observation family and will progressively replace Sentinel-2A which is set to retire in the coming months. It will carry on the legacy by continuing to provide similar types of data allowing to an...
The HLSS30 product provides 30-m Nadir Bidirectional Reflectance Distribution Function (BRDF)-Adjusted Reflectance (NBAR) and is derived from Sentinel-2A and Sentinel-2B MSI data products. The HLSS30 product is provided in Cloud Optimized GeoTIFF (COG) format, and each band is distributed as ...