Preliminary Data for Group Number Backbones
Last updated 2015-09-03


GN-1610-2015 [GN-1610-2015-(V1-2015-06-08), xls]
Group Number

Locarno Backbone [Locarno Backbone Data, V2-2015-10-05, xls]
Locarno

Koyama Backbone [Koyama Backbone Data, V2-2015-08-26, xls]
Koyama

Wolfer Backbone [Wolfer Backbone Data, V2-2015-11-17, xls]
Wolfer

Schwabe Backbone [Schwabe Backbone Data, V2-2015-09-29, xls]
Schwabe

Staudach Backbone [Staudach Backbone Data, V2-2015-09-04, xls]
Staudach

Comparing Greenwich (RGO) group count with those of other observers [V2-2015-11-17]
RGO-Comparison

Group Database [Group Database, V2-2015-09-06, txt]
Station List Database [Station List, V2-2015-09-06, txt]
Group Database Format [Group Database Format, V2-2015-09-06, txt]
Station List Database Format [Station List Database Format, V2-2015-09-06, txt]
GN-Since-1900 [Comparison GN for SS, HS, WEA, CEA, SA]