Low Flow and Drought in a German Low Mountain Range Basin

Rising temperatures and changes in precipitation patterns in the last decades have led to an increased awareness on low flow and droughts even in temperate climate zones. The scientific community often considers low flow as a consequence of drought. However, when observing low flow, catchment proces...

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Main Authors: Paula Farina Grosser, Britta Schmalz
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/13/3/316
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author Paula Farina Grosser
Britta Schmalz
author_facet Paula Farina Grosser
Britta Schmalz
author_sort Paula Farina Grosser
collection DOAJ
description Rising temperatures and changes in precipitation patterns in the last decades have led to an increased awareness on low flow and droughts even in temperate climate zones. The scientific community often considers low flow as a consequence of drought. However, when observing low flow, catchment processes play an important role alongside precipitation shortages. Therefore, it is crucial to not neglect the role of catchment characteristics. This paper seeks to investigate low flow and drought in an integrative catchment approach by observing the historical development of low flows and drought in a typical German low mountain range basin in the federal state of Hesse for the period 1980 to 2018. A trend analysis of drought and low flow indices was conducted and the results were analyzed with respect to the characteristics of the Gersprenz catchment and its subbasin, the Fischbach. It was shown that catchments comprising characteristics that are likely to evoke low flow are probably more likely to experience short-term, seasonal low flow events, while catchments incorporating characteristics that are more robust towards fluctuations of water availability will show long-term sensitivities towards meteorological trends. This study emphasizes the importance of small-scale effects when dealing with low flow events.
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spelling doaj.art-3f7f4371f2a7423c8178d98bd0de9ef42023-12-03T14:59:12ZengMDPI AGWater2073-44412021-01-0113331610.3390/w13030316Low Flow and Drought in a German Low Mountain Range BasinPaula Farina Grosser0Britta Schmalz1Chair of Engineering Hydrology and Water Management, Technical University of Darmstadt, 64287 Darmstadt, GermanyChair of Engineering Hydrology and Water Management, Technical University of Darmstadt, 64287 Darmstadt, GermanyRising temperatures and changes in precipitation patterns in the last decades have led to an increased awareness on low flow and droughts even in temperate climate zones. The scientific community often considers low flow as a consequence of drought. However, when observing low flow, catchment processes play an important role alongside precipitation shortages. Therefore, it is crucial to not neglect the role of catchment characteristics. This paper seeks to investigate low flow and drought in an integrative catchment approach by observing the historical development of low flows and drought in a typical German low mountain range basin in the federal state of Hesse for the period 1980 to 2018. A trend analysis of drought and low flow indices was conducted and the results were analyzed with respect to the characteristics of the Gersprenz catchment and its subbasin, the Fischbach. It was shown that catchments comprising characteristics that are likely to evoke low flow are probably more likely to experience short-term, seasonal low flow events, while catchments incorporating characteristics that are more robust towards fluctuations of water availability will show long-term sensitivities towards meteorological trends. This study emphasizes the importance of small-scale effects when dealing with low flow events.https://www.mdpi.com/2073-4441/13/3/316low flowdroughtcatchment characteristicslow flow indicesdrought indicestrend analysis
spellingShingle Paula Farina Grosser
Britta Schmalz
Low Flow and Drought in a German Low Mountain Range Basin
Water
low flow
drought
catchment characteristics
low flow indices
drought indices
trend analysis
title Low Flow and Drought in a German Low Mountain Range Basin
title_full Low Flow and Drought in a German Low Mountain Range Basin
title_fullStr Low Flow and Drought in a German Low Mountain Range Basin
title_full_unstemmed Low Flow and Drought in a German Low Mountain Range Basin
title_short Low Flow and Drought in a German Low Mountain Range Basin
title_sort low flow and drought in a german low mountain range basin
topic low flow
drought
catchment characteristics
low flow indices
drought indices
trend analysis
url https://www.mdpi.com/2073-4441/13/3/316
work_keys_str_mv AT paulafarinagrosser lowflowanddroughtinagermanlowmountainrangebasin
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