Geochemical data on rainfall and groundwater at Douala (Cameroon)
Collected date : from Jul 2006 to Aug 2017
Creators :
Bertil Nlend
Hélène Celle-Jeanton
Stable isotopes (oxygen-18 and deuterium) data on rainfall at monthly and daily scales at Douala. Concerning groundwater, there is two sets of data: one on water stable isotopes (oxygen-18 and deuterium) and another one on major ion chemistry.
DCF77 time of flight measurement
Collected date : from 1 Nov 2016 ongoing
Creators :
Jean-Michel Friedt
DCF77 is a Very Low Frequency (VLF) emitter located in Mainflingen, Germany, about 400 km away from Besançon, France. The objective of the collected data is to measure the time of flight of the 77.5 kHz signal with respect to GPS 1 PPS used as reference, and assess the dependence with ionospheric ...