Changes in Terrestrial Evaporation across Poland over the Past Four Decades Dominated by Increases in Summer Months

Given the importance of terrestrial evaporation (ET) for the water cycle, a fundamental understanding of the water quantity involved in this process is required. As recent observations reveal a widespread ET intensification across the world, it is important to evaluate regional ET variability. The s...

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Main Author: Urszula Somorowska
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Resources
Subjects:
Online Access:https://www.mdpi.com/2079-9276/11/1/6
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author Urszula Somorowska
author_facet Urszula Somorowska
author_sort Urszula Somorowska
collection DOAJ
description Given the importance of terrestrial evaporation (ET) for the water cycle, a fundamental understanding of the water quantity involved in this process is required. As recent observations reveal a widespread ET intensification across the world, it is important to evaluate regional ET variability. The specific objectives of this study are the following: (1) to assess annual and monthly ET trends across Poland, and (2) to reveal seasons and regions with significant ET changes. This study uses the ET estimates acquired from the Global Land Evaporation Amsterdam Model (GLEAM) dataset allowing for multi-year analysis (1980–2020). The Mann–Kendall test and the Sen’s slope were applied to estimate the significance and magnitude of the trends. The results show that a rising temperature, along with small precipitation increase, led to the accelerated ET of 1.36 mm/y. This was revealed by increased transpiration and interception loss not compensated by a decrease in bare soil evaporation and sublimation. The wide-spread higher water consumption especially occurred during the summer months of June, July, and August. Comparing the two subperiods of 1980–2020, it was found that in 2007–2020, the annual ET increased by 7% compared to the reference period of 1980–2006. These results can serve as an important reference for formulating a water resources management strategy in Poland.
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spelling doaj.art-4a97923e9da84c6a851e16cc5878957c2023-11-23T15:17:46ZengMDPI AGResources2079-92762022-01-01111610.3390/resources11010006Changes in Terrestrial Evaporation across Poland over the Past Four Decades Dominated by Increases in Summer MonthsUrszula Somorowska0Department of Hydrology, Faculty of Geography and Regional Studies, University of Warsaw, Krakowskie Przedmieście 30, 00-927 Warsaw, PolandGiven the importance of terrestrial evaporation (ET) for the water cycle, a fundamental understanding of the water quantity involved in this process is required. As recent observations reveal a widespread ET intensification across the world, it is important to evaluate regional ET variability. The specific objectives of this study are the following: (1) to assess annual and monthly ET trends across Poland, and (2) to reveal seasons and regions with significant ET changes. This study uses the ET estimates acquired from the Global Land Evaporation Amsterdam Model (GLEAM) dataset allowing for multi-year analysis (1980–2020). The Mann–Kendall test and the Sen’s slope were applied to estimate the significance and magnitude of the trends. The results show that a rising temperature, along with small precipitation increase, led to the accelerated ET of 1.36 mm/y. This was revealed by increased transpiration and interception loss not compensated by a decrease in bare soil evaporation and sublimation. The wide-spread higher water consumption especially occurred during the summer months of June, July, and August. Comparing the two subperiods of 1980–2020, it was found that in 2007–2020, the annual ET increased by 7% compared to the reference period of 1980–2006. These results can serve as an important reference for formulating a water resources management strategy in Poland.https://www.mdpi.com/2079-9276/11/1/6terrestrial evaporationcomponentsGlobal Land Evaporation Amsterdam Model (GLEAM)increasing trendsspatial–temporal patternevaporative ratio
spellingShingle Urszula Somorowska
Changes in Terrestrial Evaporation across Poland over the Past Four Decades Dominated by Increases in Summer Months
Resources
terrestrial evaporation
components
Global Land Evaporation Amsterdam Model (GLEAM)
increasing trends
spatial–temporal pattern
evaporative ratio
title Changes in Terrestrial Evaporation across Poland over the Past Four Decades Dominated by Increases in Summer Months
title_full Changes in Terrestrial Evaporation across Poland over the Past Four Decades Dominated by Increases in Summer Months
title_fullStr Changes in Terrestrial Evaporation across Poland over the Past Four Decades Dominated by Increases in Summer Months
title_full_unstemmed Changes in Terrestrial Evaporation across Poland over the Past Four Decades Dominated by Increases in Summer Months
title_short Changes in Terrestrial Evaporation across Poland over the Past Four Decades Dominated by Increases in Summer Months
title_sort changes in terrestrial evaporation across poland over the past four decades dominated by increases in summer months
topic terrestrial evaporation
components
Global Land Evaporation Amsterdam Model (GLEAM)
increasing trends
spatial–temporal pattern
evaporative ratio
url https://www.mdpi.com/2079-9276/11/1/6
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