First Modern Bathymetric Map (10 фев 1872 г. – 11 июл 1878 г.)
Описание:
New high density soundings were taken by the coast survey streamer blake in the gulf of mexico. This event is important because it is the first time the bathyspheric map is almost perfected.Добавлено на ленту времени:
Дата:
10 фев 1872 г.
11 июл 1878 г.
~ 6 years and 4 months
