18/41 
with the aim of saving and digitizing old, not yet digitized observation records and considera 
bly enlarging the number of time series longer than 50 years. 
The aim of the NKDZ is the archiving and documentation of the data, the establishment of 
quality control procedures to the historical data and the provision of access and distribution 
methods to make the data available for application and research. The current data of the 
NKDZ are distributed via the GTS. A web access to the historical database and a data cata 
logue according to ISO metadata standards is provided on the web. All precipitation data are 
provided to the GPCC (Global Precipitation Climatology Centre). 
Another project HISTOR, DWD aims in rescuing marine weather observations contained in 
37.000 logbooks of sailing ships and steamer from the period of “Norddeutscher” and 
“Deutscher Seewarte” from 1868 to 1945. The meteorological data and meta data includes in 
the logbooks are digitized, quality controlled, stored and provided for purposes of climate 
research and climate modelling. 
2.4.1 Surface-Based Atmospheric ECV’s 
The following gives some explanations for each row of Table 1a). 
GCOS Surface Network (GSN): 
see section 2.2.1 
Full World Weather Watch / Global Observing System (WWW/GOS) surface network: 
(see section 2.3.1) 
The network of weather stations in Germany consists of: 
• 202 main meteorological watch offices and automatic weather stations, including 19 
surface weather stations run by the German Federal Armed Forces 
• 15 surface weather stations run by the German Federal Armed Forces with temporari 
ly measurements 
• 1839 secondary weather and precipitation stations with voluntary observers, of which 
810 are automatic stations for 10-minute data (49 stations measured only wind pa 
rameter and 468 only precipitation) 
Baseline Surface Radiation Network (BSRN): 
A total of three stations are involved in BSRN: the DWD station Lindenberg and the two AWI 
stations Neumayer and Spitsbergen. 
The WRMC with all BSRN measurements is now managed by the AWI. 
Solar radiation and radiation balance data: 
These parameters were measured at selected 109 stations. 29 stations are equipped with 
pyranometer (high level) and 80 stations with Scanning Pyrheliometer Pyranometer 
(SCAPPs, lower level). 
Ocean drifting buoys: 
Germany runs no drifting buoys on its own, but contributes to EUCOS/E-SURFMAR. More 
information is given in chapter 3. 
Moored buoys: 
The eight maritime stations currently consist of: 
• 3 moored buoys Nordseeboje II 
Nordseeboje III 
Fehmarn belt 
• 1 navigation beacon Bake Zulu