青藏高原Landsat系列卫星遥感盐分指数(SI)产品(2022)
收藏资源简介:
1)数据内容:本数据集包含2022年青藏高原地区Landsat时序SI产品。2)数据来源及加工方法:主要是在青藏高原Landsat系列卫星地表反射率数据集的基础上,通过SI的计算公式进行生产的,即基于红光波段和蓝光波段能够很好地反映土壤盐分的原理;3)数据质量描述:为了标识云、冰雪,并相应生产了质量标识文件(QA)。4) 数据应用成果及前景:该指数能很好的反映土壤的盐分程度,可用于定量化评价盐渍化土壤。
1) Data Content: This dataset includes time-series Soil Salinity Index (SI) products of the Qinghai-Tibet Plateau region in 2022, sourced from Landsat series satellite imagery. 2) Data Source and Processing Method: The products were primarily developed using the SI calculation formula, based on the Landsat series surface reflectance dataset of the Qinghai-Tibet Plateau. The underlying principle is that the red and blue spectral bands can effectively reflect soil salinity levels. 3) Data Quality Description: Corresponding quality assessment (QA) files were generated to identify clouds, snow and ice. 4) Data Application Achievements and Prospects: This index can effectively characterize the degree of soil salinity, and can be applied for quantitative evaluation of salinized soils.




