Extreme Floods in the Eastern Part of Europe: Large-Scale Drivers and Associated Impacts

The role of the large-scale atmospheric circulation in producing heavy rainfall events and floods in the eastern part of Europe, with a special focus on the Siret and Prut catchment areas (Romania), is analyzed in this study. Moreover, a detailed analysis of the socio-economic impacts of the most ex...

Full description

Bibliographic Details
Main Authors: Monica Ionita, Viorica Nagavciuc
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/13/8/1122
_version_ 1797537142419750912
author Monica Ionita
Viorica Nagavciuc
author_facet Monica Ionita
Viorica Nagavciuc
author_sort Monica Ionita
collection DOAJ
description The role of the large-scale atmospheric circulation in producing heavy rainfall events and floods in the eastern part of Europe, with a special focus on the Siret and Prut catchment areas (Romania), is analyzed in this study. Moreover, a detailed analysis of the socio-economic impacts of the most extreme flood events (e.g., July 2008, June–July 2010, and June 2020) is given. Analysis of the largest flood events indicates that the flood peaks have been preceded up to 6 days in advance by intrusions of high Potential Vorticity (PV) anomalies toward the southeastern part of Europe, persistent cut-off lows over the analyzed region, and increased water vapor transport over the catchment areas of Siret and Prut Rivers. The vertically integrated water vapor transport prior to the flood peak exceeds 300 kg m<sup>−1</sup> s<sup>−1</sup>, leading to heavy rainfall events. We also show that the implementation of the Flood Management Plan in Romania had positive results during the 2020 flood event compared with the other flood events, when the authorities took several precaution measurements that mitigated in a better way the socio-economic impact and risks of the flood event. The results presented in this study offer new insights regarding the importance of large-scale atmospheric circulation and water vapor transport as drivers of extreme flooding in the eastern part of Europe and could lead to a better flood forecast and flood risk management.
first_indexed 2024-03-10T12:10:53Z
format Article
id doaj.art-b6a655b9c3704895bfdbbdc8967933b6
institution Directory Open Access Journal
issn 2073-4441
language English
last_indexed 2024-03-10T12:10:53Z
publishDate 2021-04-01
publisher MDPI AG
record_format Article
series Water
spelling doaj.art-b6a655b9c3704895bfdbbdc8967933b62023-11-21T16:14:11ZengMDPI AGWater2073-44412021-04-01138112210.3390/w13081122Extreme Floods in the Eastern Part of Europe: Large-Scale Drivers and Associated ImpactsMonica Ionita0Viorica Nagavciuc1Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, 27570 Bremerhaven, GermanyAlfred Wegener Institute Helmholtz Center for Polar and Marine Research, 27570 Bremerhaven, GermanyThe role of the large-scale atmospheric circulation in producing heavy rainfall events and floods in the eastern part of Europe, with a special focus on the Siret and Prut catchment areas (Romania), is analyzed in this study. Moreover, a detailed analysis of the socio-economic impacts of the most extreme flood events (e.g., July 2008, June–July 2010, and June 2020) is given. Analysis of the largest flood events indicates that the flood peaks have been preceded up to 6 days in advance by intrusions of high Potential Vorticity (PV) anomalies toward the southeastern part of Europe, persistent cut-off lows over the analyzed region, and increased water vapor transport over the catchment areas of Siret and Prut Rivers. The vertically integrated water vapor transport prior to the flood peak exceeds 300 kg m<sup>−1</sup> s<sup>−1</sup>, leading to heavy rainfall events. We also show that the implementation of the Flood Management Plan in Romania had positive results during the 2020 flood event compared with the other flood events, when the authorities took several precaution measurements that mitigated in a better way the socio-economic impact and risks of the flood event. The results presented in this study offer new insights regarding the importance of large-scale atmospheric circulation and water vapor transport as drivers of extreme flooding in the eastern part of Europe and could lead to a better flood forecast and flood risk management.https://www.mdpi.com/2073-4441/13/8/1122floodsatmospheric circulationimpactSiret RiverPrut River
spellingShingle Monica Ionita
Viorica Nagavciuc
Extreme Floods in the Eastern Part of Europe: Large-Scale Drivers and Associated Impacts
Water
floods
atmospheric circulation
impact
Siret River
Prut River
title Extreme Floods in the Eastern Part of Europe: Large-Scale Drivers and Associated Impacts
title_full Extreme Floods in the Eastern Part of Europe: Large-Scale Drivers and Associated Impacts
title_fullStr Extreme Floods in the Eastern Part of Europe: Large-Scale Drivers and Associated Impacts
title_full_unstemmed Extreme Floods in the Eastern Part of Europe: Large-Scale Drivers and Associated Impacts
title_short Extreme Floods in the Eastern Part of Europe: Large-Scale Drivers and Associated Impacts
title_sort extreme floods in the eastern part of europe large scale drivers and associated impacts
topic floods
atmospheric circulation
impact
Siret River
Prut River
url https://www.mdpi.com/2073-4441/13/8/1122
work_keys_str_mv AT monicaionita extremefloodsintheeasternpartofeuropelargescaledriversandassociatedimpacts
AT vioricanagavciuc extremefloodsintheeasternpartofeuropelargescaledriversandassociatedimpacts