MODIS OWL Summary Maps of surface water for NAWRA

This dataset contains summary maps of surface water using MODIS satellite data from 2000 to 2015, and the Open Water Likelihood (OWL) algorithm produced for the Northern Australia Water Resource Assessment (NAWRA). Flooding can be catastrophic to agricultural production in terms of loss of stock, fodder, topsoil and damage to crops and infrastructure. Flooding is also critical to wetland ecosystems. The MODIS OWL summary maps are produced for the period of 2000 to 2015 to show: Maximum percentage OWL value, Percentage of wet-pixel observations, and Maximum inundation duration for each pixel within the three NAWRA catchments (Fitzroy, Darwin and Mitchell).

本数据集包含利用2000至2015年中分辨率成像光谱仪（MODIS）卫星数据，以及为北澳大利亚水资源评估（Northern Australia Water Resource Assessment，NAWRA）开发的开放式水体概率（Open Water Likelihood，OWL）算法生成的地表水体汇总地图。洪水会对农业生产造成灾难性影响，可导致牲畜、饲料、表层土壤损失，并破坏农作物与基础设施。同时，洪水对湿地生态系统亦具有关键意义。本数据集生成的MODIS OWL地表水体汇总地图覆盖2000至2015年时段，用于呈现NAWRA所辖三个流域（菲茨罗伊、达尔文与米切尔）内各像元的三项核心指标：最大OWL值占比、湿像元观测占比及最大淹没时长。