1. - Digitization of historical data at DWD -
Wolfgang Gloeden
Marine Data Archive, Hamburg

2. KLIDADIGI Overseas HISTOR
DWD-Projects to make historical data available
KLIDADIGI
Digitization of all historical data from German land stations
Overseas
Digitization of data from overseas stations
HISTOR
Digitization of historical navigation logbooks and meteorological ship journals

3. KLIDADIGI Overseas HISTOR
DWD-Projects to make historical data available
KLIDADIGI
Digitization of all historical data from German land stations
Overseas
Digitization of data from oberseas stations
HISTOR
Digitization of historical navigation logbooks and meteorological ship journals

4. Example of a climate table from 1896
Example of a climate record from the Baltic Sea island POEL from January 1896 with corrections from the Weather Service. It makes no sense to use OCR (optical character recognition) to digitize such handwritten and corrected documents.
DWD / ACRE / 09/2009

5. Temporal availability of digital temperature data
Climate stations: Measurements: temperature, humidity, precipitation, in parts: pressure, sunshine duration, soil temperature; estimates: wind, cloudiness.
Monthly: digital available monthly means of temperature
KLIDADIGI: in the project KLIDADIGI digitized three times a day (most at 07, 14, 21 local time)
Daily: allready digitized
The potential for digitization is the difference between the monthly –minus- daily data
DWD / ACRE / 09/2009

6. Progress in digitization of daily climate records
Hamburg
100 years records with less than 3 years of missing data
Records prolonged in the KLIDADIGI project
Future plans
Spatial distribution of the available long time series (100 years) for climate stations, those in the last three years prolonged series (more than 10 years) and the future plans (most of these records are on micro films)
DWD / ACRE / 09/2009

7. Precipitation network
Digitized amount and future plans
Precipitation network
Climate network
Total potential (100%):
station-years
= 330 person-years
Total potential (100%): station-years
= 460 person-years
There are about 10 DWD-staff members who are typing the data: one person could digitize 30 to 50 station years per year or station years of precipitation.
The project KLIDADIGI runs till 2013 and we hope it will be continued.
Up to now digitized: 7%
10%
Plan until 2013: 4%

8. KLIDADIGI Overseas HISTOR
DWD-Projects to make historical data available
KLIDADIGI
Digitization of all historical data from German land stations
Overseas
Digitization of data from oberseas stations
HISTOR
Digitization of historical navigation logbooks and meteorological ship journals

9. Archive of historical manuscripts of climate observations from overseas
At Deutscher Wetterdienst in Hamburg, there exists an extensive archive with original historical manuscripts of climate observations of more than 600 stations covering the period to 1939.
Most records are written in German language and script.
There are monthly, yearly, daily and in some cases hourly data of the traditional climate elements.
The picture shows an weather station for climat observation in the tropics.
About half of the records are from stations in Africa.
The Metadata are complete available.
The digitized records will go back to the countries, where the data came from. The original manuscripts will stay at DWD.
DWD / ACRE / 09/2009

10. Geographical distribution of historical stations
Labrador
China and Korea
Africa
Micronesia
South America
Melanesia
DWD / ACRE / 09/2009

11. Number of stations subject to length of observation periods
The digitization has just started, but will most probably need years because of lacking resources.
DWD / ACRE / 09/2009

12. KLIDADIGI Overseas HISTOR
DWD-Projects to make historical data available
KLIDADIGI
Digitization of all historical data from German land stations
Overseas
Digitization of data from oberseas stations
HISTOR
Digitization of historical navigation logbooks and meteorological ship journals

13. The Archive

14. The Navigation Logbooks

15. The Navigation Logbooks

16. State of the archive Archive No. of books No. of Obs completed
Digitization
Instr. Corr.
Date, Time, Pos
Met. Check
Archive
No. of books
No. of Obs
completed
ca.  16.900
POS-Files
2.754
ERF-Files
157
52.000
MarkObs
4.735
Σ done ca
Σ total - Σ done ca ca

17. Barque DORADE
After the HISTOR-Project all observations are keyed, each gap is defined – but sometimes there are other reasons for data loss …
Punta Arenas
Iquique
North- and Southatlantic
Pacific Ocean
North- and Southatlantic

18. Barque DORADE
After the HISTOR-Project all observations are keyed, each gap is defined – but sometimes there are other reasons for data loss … ?
Punta Arenas
Iquique
North- and Southatlantic
Pacific Ocean
North- and Southatlantic

19. Barque DORADE
After the HISTOR-Project all observations are keyed, each gap is defined – but sometimes there are other reasons for a data loss …
The recording of the next 12 days were ripped out of the rough book by our board dog „Carlo“, and before we could grab it from him, these pages were gone …

20. Thank you for your attention !
DWD / ACRE / 09/2009