S1-GRiTS: Descending-Pass Sentinel-1 Gridded Time Series for MGRS Tile 17MPU, Ecuador, 2017–2025

This dataset component contains scene-level Sentinel-1 SAR backscatter time series for MGRS tile 17MPU in descending passes from 2017 to 2025, generated by the S1-GRiTS. The data are organized as gridded Zarr stores and preserve individual Sentinel-1 acquisition records rather than temporally aggregated composites. The component includes separate descending-orbit data cubes. This track-specific organization allows users to analyze temporal behavior under distinct acquisition geometries, compare ascending and descending observations, and examine long-term Sentinel-1 backscatter dynamics used by S1-GRiTS. This component supports the decadal time-series and acquisition-geometry analyses in the associated manuscript.本数据集组件包含由S1-GRiTS生成的、覆盖MGRS瓦片（MGRS tile）17MPU且时间跨度为2017年至2025年的降轨过境场景级Sentinel-1合成孔径雷达（Sentinel-1 SAR）后向散射时间序列数据。该数据以网格化Zarr存储（gridded Zarr store）的形式组织，保留单条Sentinel-1获取记录而非时间聚合合成产物。 本组件包含独立的降轨数据立方体。这种轨道专属的组织形式，可支持研究者分析不同获取几何条件下的时间序列特征、对比升轨与降轨观测结果，以及探究S1-GRiTS所采用的长期Sentinel-1后向散射动态变化规律。本组件可辅助相关学术论文中的年代际时间序列与获取几何条件分析研究。