Maximum two-monthly surface water extent for MDB from MIM and WOFS - Version 2

The multi-index method (MIM) (refer to Ticehurst, Teng and Sengupta 2022 in the Related Links for a description of the method) was developed for mapping surface water across the Murray-Darling Basin (MDB) based on Landsat surface reflectance data available in Digital Earth Australia. More than thirty years of two-monthly images of surface water extent across the whole MDB have been produced using this method, along with Water Observations from Space (WOfS) to help fill in gaps associated with cloud cover. The data were produced as part of the Murray-Darling Basin Ecosystem Function (MDB-EF) and Murray-Darling Water and Environment Research Program (MD-WERP) projects. This is Version 2 of this product, spanning from 1988 to June 2022. Differences between this version and the original version are described in the metadata document (see Supporting files). Also view the metadata document for a description of the data layers and product limitations.

多指数法（Multi-index Method, MIM）的详细说明可参阅相关链接中Ticehurst、Teng与Sengupta于2022年发表的研究。该方法基于澳大利亚数字地球（Digital Earth Australia）平台提供的陆地卫星（Landsat）地表反射率数据，专为绘制墨累-达令盆地（Murray-Darling Basin, MDB）的地表水分布而开发。研究团队采用该方法，并结合太空水观测（Water Observations from Space, WOfS）产品填补云遮挡造成的数据空白，生成了覆盖整个墨累-达令盆地、跨度超30年的每两月一期的地表水范围影像数据集。本数据集是墨累-达令盆地生态系统功能（Murray-Darling Basin Ecosystem Function, MDB-EF）与墨累-达令水与环境研究计划（Murray-Darling Water and Environment Research Program, MD-WERP）项目的产出成果之一。本产品为第2版，时间跨度为1988年至2022年6月。该版本与初始版本的差异已在元数据文档中说明（详见支持文件）。如需了解数据图层与产品局限性的详细说明，亦可参阅该元数据文档。