Environmental monitoring in the Lake Victoria region

This interface supports station-based datasets, gridded WMS datasets, and sub-catchment polygon data, with functionality tailored to each type.

Sub-catchment polygons

Selecting a variable:

• Updates the colour of each sub-catchment according to the legend.
• Displays a graph of all stations.
• Clicking a sub-catchment shows a timeseries graph.

Year buttons update the map data and graph of all sub-catchments accordingly.

Station-based datasets

Selecting a variable:

• Updates the radius of each station marker on the map.
• Displays a graph of all stations for the selected variable.
• Clicking a station shows a timeseries graph or datatable as appropriate to the dataset.

Year buttons update the map data and graph of all stations accordingly.

Gridded WMS datasets

Selecting a variable:

• Loads the associated WMS layer onto the map.
• Clicking on a grid cell displays a timeseries graph.

In comparison mode:

• Two years for a specific variable or two variables for a specific year can be shown side-by-side using separate WMS layers.
• If comparing variables, both appear on the timeseries graph for the selected grid cell.