[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["缺少我需要的資訊","missingTheInformationINeed","thumb-down"],["過於複雜/步驟過多","tooComplicatedTooManySteps","thumb-down"],["過時","outOfDate","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["示例/程式碼問題","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],[],[],["This Landsat 4 dataset, provided by USGS, spans from 1982 to 1993 and is now superseded. It uses Level L1T orthorectified scenes with top-of-atmosphere reflectance to create annual composites. The Normalized Difference Snow Index (NDSI), derived from Green and Mid-IR bands with values from -1.0 to 1.0, is used to identify snow. The dataset is complete and public domain. It's recommended to use Collection 1-based datasets, and cite the USGS when using this data.\n"]]