global_surface_water_change

Global Surface Water Occurrence Change Intensity visualisation script

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{% highlight javascript %} {% include_relative script.js %} {% endhighlight %}

General description of the script

This script visualizes the Occurrence Change Intensity layer from the Global Surface Water dataset according to the official symbology (Table 1). The Occurrence Change Intensity layer visualises changes in water occurrence between two different epochs, the first ranging from March 1984 to December 1999, and the other covering the period from January 2000 to December of the selected review year.

Table 1: Occurrence Change Intensity Symbology

Value	Symbol	Colour	Label
0		0xff0000	-100% loss of occurrence
100		0x000000	No change
200		0x00ff00	100% increase in occurrence
253		0xffffff	Not water
254		0x888888	Unable to calculate a value due to no homologous months
255		0xcccccc	No data

Description of representative images

Occurrence Change Intensity layer visualisation in EO Browser for a section of the Padma River, the main distributary of the Ganges, in Bangladesh.

Resources

• Data Source

• Entry in public collections

• Entry in public collections repository