Wednesday, 24 June 2009

Climate change and river discharge

For a number of basins the annual discharge is a linear functionsuch as
discharge= total rainfall on the basin minus a large value

There is a zero discharge for about 700 mm mean rainfall over the Volta (and Chari) basins. A 10 % change in the rainfall leads to a 30 % change in discharge.
Have we got examples for other BFP basins ? Does it apply to wet basins?
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2 comments:

  1. Myles Fisher13 July 2009 at 06:49

    Very useful comment Jacques. I know of no numbers, but maybe Mac Kirby knows of data from the Murray-Darling (or elsewhere of course). Mac?

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  2. Nicolas Nguyen13 July 2009 at 10:16

    For the Yellow, we have increased precipitation, but still lower discharge under CC as a result of higher evapotranspiration requirements.

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