plotting and visualizing lake change

[mnky9800n]

[walter comment] I think the narrative was quite clear from the beginning, but there is a fair chance that lake change is indeed explained by changes within the catchment area of the lake. It is likely that this works best for endorheic catchments, because in those cases all hydrological changes that occur in the catchment have a direct influence on the lake. For exorheic catchments, that drain to downstream regions, this effect will be less as there isa maximum water level and then all water drains. However if it could still work for low lake levels. We anyhow have to test it.

TODO: systematically summarize and interpret the GSW results. Where and when is there growth and shrinkage of lakes within catchments?

[mnky9800n]

TODO:

1. make a plot that shows the cumulative aggregate changes over time
2. make a plot that shows the cumulative changes over time per catchment with the mean value
3. make a plot that colors catchments based on cumulative water balance