Water Bodies

Short description

The Global Water Bodies product shows the surface extent covered by inland water on permanent, seasonal or occasional basis. The product available here is the Water Bodies 100m Version 1 collection which is derived from Sentinel-2 level 1C data, starting from October 2020 after the end of the PROBA-V mission and is delivered as a monthly composite product at 100m resolution. The Water Bodies product contain one main Water Bodies detection layer (WB) and one Quality layer (QUAL) that provides information on the seasonal dynamics of the detected water bodies. Water Bodies detection layer (WB) shows water bodies detected using the Modified Normalized Difference Water Index (MNDWI) derived from Sentinel-2 Level 1C data. The Quality layer (QUAL) is generated from water body occurrence statistics computed from previous monthly Water Bodies products.The occurrence statistics is ranked from low occurrence to permanent occurrence.More information about the data can be obtained from the Water Bodies product page.

Band information

Water Bodies product contain 2 bands (WB and QUAL) and are described in Table 1 below. Table 1: Bands

Name	Units	Values	Description
WB	DN	70	Main Water Bodies detection layer showing water pixels and non-water pixels 0 = Sea 70 = Water 251 = No data 255 = No water
QUAL	DN	71 - 76	Quality layer which gives information on water bodies occurrence 0 = Sea 71 = Very low occurence 72 = Low occurence 73 = Medium occurence 74 = High occurence 75 = Very high occurence 76 = Permanent occurence 251 = No data 252 = Cloud 255 = Not water

More information

• Data Source
• Product User Manual

October 2020 monthly composite map showing surface water body extent around Russia's largest freshwater lake Baikal visualised in EO browser
December 2020 water body occurrence on Iran's second largest salt lake Bakhtegan and lake Tashk visualised in EO browser

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