[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["必要な情報がない","missingTheInformationINeed","thumb-down"],["複雑すぎる / 手順が多すぎる","tooComplicatedTooManySteps","thumb-down"],["最新ではない","outOfDate","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["サンプル / コードに問題がある","samplesCodeIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-07-26 UTC。"],[[["The Vegetation Change Tracker (VCT) automatically reconstructs forest disturbance history using dense Landsat time series stacks."],["VCT identifies disturbances by analyzing changes in spectral indices like NDVI, dNBR, and UD composite over time."],["The output provides a per-pixel disturbance magnitude for each year within the analyzed Landsat time series."],["Users can customize parameters like maximum UD composite value and minimum NDVI for forest detection."],["VCT requires input Landsat time series collections with specific bands, including B3, B4, B5, B7, thermal, NDVI, DNBR, and COMP."]]],["Vegetation Change Tracker (VCT) reconstructs forest disturbance history using Landsat time series. It requires yearly image collections of `timeSeries` (containing specific bands) and `landCover` to produce a per-pixel 2D array. This array contains information for each year, including the VCT landcover mask, and the magnitude of disturbances based on UD composite, B4, NDVI, and dNBR. VCT's function can be customized by using arguments like `maxUd`, `minNdvi`, `forThrMax`, and `nYears`.\n"]]