The Impact of Climate on Hydrological Extremes

Manfreda, Salvatore; Iacobellis, Vito; Gioia, Andrea; Fiorentino, Mauro; Kochanek, Krzysztof

doi:10.3390/w10060802

Cited by 17 publications

(8 citation statements)

References 19 publications

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“…Given the impact of climate change, hydrological extremes are occurring more frequently. The low streamflow that is associated with droughts is one of the extreme hydrological phenomena that is mainly caused by meteorological abnormalities and human activities in the catchments [1]. Hydrological drought has had negative impacts on humankind's water supply, ecological stability, and agricultural systems [2].…”

Section: Introductionmentioning

confidence: 99%

A 40-Year Analysis of the Hydrological Drought Index for the Tigris Basin, Turkey

Ozkaya

Zerberg²

2019

Water

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Drought is a natural disaster that occurs globally when water availability is significantly below normal levels. Drought assessment is important for water resource planning, and therefore indexes can be used to characterize drought magnitudes. Using the monthly streamflow data at 47 stations from 1972 to 2011, the streamflow drought index (SDI) series with 3- (SDI-3), 6- (SDI-6), and 12-month (SDI-12) time scales were calculated, and the hydrological drought of the upper Tigris Basin in Turkey has been assessed. The results showed that almost all stations experienced at least one severe drought during the study period. The results revealed that since the early 1990s the study area has become drier. Using the data for a 12-month period and the area of the sub-basins for each flow monitoring station, area-weighted SDI-12 (WSDI) values were constructed. According to the WSDI results, the intensity and number of drought conditions increased during every 10-year period. This outcome has been verified using the maps of averaged SDI-12 values over the Tigris Basin. We noticed from observations of the maps that the time domain zones in lower latitudes experienced drought earlier as compared with zones in higher latitudes.

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Section: Introductionmentioning

confidence: 99%

A 40-Year Analysis of the Hydrological Drought Index for the Tigris Basin, Turkey

Ozkaya

Zerberg²

2019

Water

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“…• The rainfall analysis, which considers the recorded rainfall data and applies the usual statistical methods for rainfall analysis [57] to estimate the DDF curve (Equation ( 3)) and the IDF curve (Equation ( 4)) for different return period T r…”

Section: Hydrological Analysismentioning

confidence: 99%

Hydromorphic Impact of Matera’s Urban Area

Ermini,

Fattore,

Zoubi

2024

Geographies

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Urban transformations change land use, permeability, and morphology of the areas involved in the evolution process; this, consequently, modifies the impact produced by the precipitation phenomena and increases the risk of flooding or uncontrolled runoff in different areas.The proposed watershed hydrologic approach enables us to consider the morphology of the territory together with the transformations implemented by human activities, and this allows us to evaluate the effects of each area on neighboring areas, emphasizes the hydrological roles of upper, intermediate, and lower parts, and reveals urban and non-urban connections. This elucidates hydromorphic complexities in urban transformations and assesses climate change adaptability. The suggested methodology has been implemented in the urban district of “Sasso Caveoso” within the city of Matera. This application facilitates a quantitative synthesis of the contextual response, allowing for an analysis across various scenarios and offering decision-support tools of practical utility.

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“…Extreme flood disasters caused by climate change are prevalent worldwide [1][2][3]. For example, climate change has exacerbated hydrological extremes in Tanzania, resulting in severe flood disasters [4], and changes in the sea surface temperature in the equatorial Pacific have led to extreme rainfall and floods in the Andes in Colombia [5].…”

Section: Introductionmentioning

confidence: 99%

Extreme Flood Levels during the Operation of Cascade Reservoirs: A Case Study of the Lower Yangtze River in 2020

Zhu

2023

Water

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Flood disasters related to climate change are becoming increasingly frequent, indicating the potential for repeated future incidence. It is essential to fully understand the causes and mechanisms of flood formation to reduce future losses. By taking the extreme flood in the lower Yangtze River in 2020 as an example and using hydrological and rainfall data of the basin, the formation process and triggering factors of a flood disaster were analyzed in this study. The flooding process can be divided into six typical stages, in which the long duration plum rain season, frequent and high-intensity rainstorms, and high overlapping rainfall areas are the preconditions for flood formation, whereas frequent encounters of floods in the main stream and tributaries of the middle and lower Yangtze River are the decisive factors. In addition, flood drainage along the lower reaches and the jacking effect of the downstream tide level play a role in promoting flooding. During this process, the joint operation of cascade reservoirs plays a key role in the prevention of catastrophic floods. The aforementioned results can provide a reference for flood control strategies in case of similar floods in the future.

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The Impact of Climate on Hydrological Extremes

Cited by 17 publications

References 19 publications

A 40-Year Analysis of the Hydrological Drought Index for the Tigris Basin, Turkey

A 40-Year Analysis of the Hydrological Drought Index for the Tigris Basin, Turkey

Hydromorphic Impact of Matera’s Urban Area

Extreme Flood Levels during the Operation of Cascade Reservoirs: A Case Study of the Lower Yangtze River in 2020

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