Existing observations

The maps below show locations of land stations in the GLAMODv8.1 pressure dataset in each of the years of 1877 and 1878.

Interactive views: 1877, 1878

There are a few more stations which will be added to GLAMOD from ISPDv4.7, and some location corrections needed.

For ships, maps of observation density are found here with one example from December 1877 below