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Heinze, Birte; Olbers, Dirk; König-Langlo, Gert; Olbers, Heinrich W M (2006): H.W.M. Olbers measurements of air temperature in Bremen from 1803 to 1822. Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.494520

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Abstract:
We rediscovered a temperature time series from Heinrich W. M. Olbers. Heinrich W. M. Olbers measured in Bremen, Sandstrasse 15, in Germany from 1803 to 1821 three times a day (7 am, 1-2 pm and 10 pm) the temperature at his window of his study, which is up to 16 m above the zero marking at the Weserbrücke. The temperature values from 1814 are missing. We got the temperature values from different sources in the Olbers estate.
We calculated the daily mean and digitized it in various plots. A very small trend towards cooling is apparent in the data which might be insignificant. But a clear seasonal trend was identifiable: the late winter and the early spring were becoming warmer, while the summer and early autumn became cooler. The average temperature in Bremen was 8.3606 deg C at that time. Additionally we combined the newly discovered Heinrich W. M. Olbers temperature data and the Heinemann and Bätjer data to see whether there are great differences between these two time series. Although the temperatures of Heinrich W. M. Olbers are in general cooler than the Heinemann and Bätjer data they fit together.
Related to:
Heinze, Birte; Olbers, Dirk; König-Langlo, Gert (2006): Clima von Bremen - H.W.M. Olbers measurements of air temperature in Bremen from 1803 to 1821. Traineeship report at Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany, 7 pp, http://store.pangaea.de/Publications/HeinzeB_et_al_2006/BHeinze_et_al_2006.pdf
Coverage:
Latitude: 53.075110 * Longitude: 8.810960
Date/Time Start: 1803-01-15T00:00:00 * Date/Time End: 1822-03-15T00:00:00
Minimum Elevation: 16.0 m * Maximum Elevation: 16.0 m
Event(s):
Sandstrasse15 * Latitude: 53.075110 * Longitude: 8.810960 * Date/Time Start: 1803-01-01T07:00:00 * Date/Time End: 1821-12-31T22:00:00 * Elevation: 16.0 m * Location: Bremen, Germany * Device: Research station (RS) * Comment: By the window of the study of Heinrich Wilhelm Matthias Olbers (1758-1840)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1DATE/TIMEDate/TimeGeocode
2Temperature, air, monthly meanTTT monthly m°COlbers, DirkThermometer7 h
3Temperature, air, monthly meanTTT monthly m°COlbers, DirkThermometer~13:30 h
4Temperature, air, monthly meanTTT monthly m°COlbers, DirkThermometer22 h
5Temperature, air, monthly minimumTTT month min°COlbers, DirkThermometer7 h
6Temperature, air, monthly minimumTTT month min°COlbers, DirkThermometer~13:30 h
7Temperature, air, monthly minimumTTT month min°COlbers, DirkThermometer22 h
8Temperature, air, monthly maximumTTT month max°COlbers, DirkThermometer7 h
9Temperature, air, monthly maximumTTT month max°COlbers, DirkThermometer~13:30 h
10Temperature, air, monthly maximumTTT month max°COlbers, DirkThermometer22 h
Size:
1449 data points

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