Check map information

[jrfep]

TF1.5: Currently missing from the md file, but available in official site.

[jrfep]

T1.3: several valid maps, T1.3.WM.nwx v1.0, T1.3.web.alt v2.1, etc

[jrfep]

T7.2 also missing

[jrfep]

For pelagic ocean waters (M2.2, M2.5, etc) most of the distribution layer is hidden by the generic ocean layer