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• due to tides that can cover and uncover extensive areas of sand or mud (e.g. around the Frisian Islands) or where the extent of a lake varies substantially during the year (e.g. Lake Kati Thanda–Lake Eyre, Australia).
• due to large areas of burnt vegetation after extensive forest fires.

Fig2Fig2146.1.15A:  Illustration of the albedo field used by the model during the forecast:

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(Note: In older material there may be references to issues that have subsequently been addressed)

Read more on Albedo.

Fig2Fig2146.1.18B: Example surface albedo as shown in the surface parameters charts.  The albedo is taken from climatological data on a monthly basis.

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