Details
| Translated title of the contribution | Trends in observed time series of temperature and precipitation in Lower Saxony |
|---|---|
| Original language | German |
| Pages (from-to) | 28-36 |
| Number of pages | 9 |
| Journal | Hydrologie und Wasserbewirtschaftung |
| Volume | 54 |
| Issue number | 1 |
| Publication status | Published - Feb 2010 |
Abstract
Trend analyses have been carried out with observed time series of temperature and precipitation in Lower Saxony. The investigations are based on daily data from 18 temperature stations and 263 precipitation stations in the time period from 1951 until 2005. The trends were studied separately for the winter, spring, summer and autumn seasons as well as for the whole year. Specific indices like maximum 5-day rainfall sum, maximum number of consecutive dry days etc. were used here to address especially the behaviour of extreme values. The Mann-Kendall-Test was applied to detect trends and the linear regression to assess its magnitude. Temperature showed significant positive trends in all seasons without spatial differences. In winter significant positive trends were found in precipitation, especially in the northern and southern parts of Lower Saxony. In the summer season, significant positive trends were detected in the duration of dry spell especially in the central region of Lower Saxony. The correction of precipitation regarding systematic undercatch led to a certain reduction in the number of significant positive winter trends, but did not change the overall picture.
ASJC Scopus subject areas
- Environmental Science(all)
- Water Science and Technology
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In: Hydrologie und Wasserbewirtschaftung, Vol. 54, No. 1, 02.2010, p. 28-36.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Trends in beobachteten Zeitreihen von temperatur und niederschlag in Niedersachsen
AU - Haberlandt, Uwe
AU - Belli, Asian
AU - Hölscher, Joseph
PY - 2010/2
Y1 - 2010/2
N2 - Trend analyses have been carried out with observed time series of temperature and precipitation in Lower Saxony. The investigations are based on daily data from 18 temperature stations and 263 precipitation stations in the time period from 1951 until 2005. The trends were studied separately for the winter, spring, summer and autumn seasons as well as for the whole year. Specific indices like maximum 5-day rainfall sum, maximum number of consecutive dry days etc. were used here to address especially the behaviour of extreme values. The Mann-Kendall-Test was applied to detect trends and the linear regression to assess its magnitude. Temperature showed significant positive trends in all seasons without spatial differences. In winter significant positive trends were found in precipitation, especially in the northern and southern parts of Lower Saxony. In the summer season, significant positive trends were detected in the duration of dry spell especially in the central region of Lower Saxony. The correction of precipitation regarding systematic undercatch led to a certain reduction in the number of significant positive winter trends, but did not change the overall picture.
AB - Trend analyses have been carried out with observed time series of temperature and precipitation in Lower Saxony. The investigations are based on daily data from 18 temperature stations and 263 precipitation stations in the time period from 1951 until 2005. The trends were studied separately for the winter, spring, summer and autumn seasons as well as for the whole year. Specific indices like maximum 5-day rainfall sum, maximum number of consecutive dry days etc. were used here to address especially the behaviour of extreme values. The Mann-Kendall-Test was applied to detect trends and the linear regression to assess its magnitude. Temperature showed significant positive trends in all seasons without spatial differences. In winter significant positive trends were found in precipitation, especially in the northern and southern parts of Lower Saxony. In the summer season, significant positive trends were detected in the duration of dry spell especially in the central region of Lower Saxony. The correction of precipitation regarding systematic undercatch led to a certain reduction in the number of significant positive winter trends, but did not change the overall picture.
KW - Air temperature
KW - Correction of precipitation
KW - Extreme events
KW - Lower Saxony
KW - Precipitation
UR - http://www.scopus.com/inward/record.url?scp=79751496143&partnerID=8YFLogxK
M3 - Artikel
AN - SCOPUS:79751496143
VL - 54
SP - 28
EP - 36
JO - Hydrologie und Wasserbewirtschaftung
JF - Hydrologie und Wasserbewirtschaftung
SN - 1439-1783
IS - 1
ER -