[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],[],[],["The dataset, provided by Google from 1984 to 2012, features Landsat 5 TM Collection 1 Tier 1 composites. It uses the Normalized Difference Snow Index (NDSI) to detect snow based on reflectance differences. Composites are generated from 8-day periods, with the most recent pixel used for each composite value. The NDSI band is measured in 30-meter pixels. This data is public domain and provided by USGS. Earth Engine access requires registration.\n"]]