Hydroclimate Impact Analyses and Water Management in the Central Rift Valley Basin in Ethiopia

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F23%3A94346" target="_blank" >RIV/60460709:41210/23:94346 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2073-4441/15/1/18" target="_blank" >https://www.mdpi.com/2073-4441/15/1/18</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/w15010018" target="_blank" >10.3390/w15010018</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hydroclimate Impact Analyses and Water Management in the Central Rift Valley Basin in Ethiopia

Popis výsledku v původním jazyce

This study explores the impacts of climate change on the major components of the water balance such as surface runoff (Q), water yield (WY), and evapotranspiration (ET) in the Central Rift Valley Basin (CRVB) in Ethiopia. Projected climate data from the climate emission scenarios were used for the analyses. Representative concentration pathway (RCP) data from the MIROC-RCA4 ensemble driving climate models were downscaled, bias-corrected, and applied for impact analyses. Climate scenario analyses for the near-term (2031-2060) and long-term (2070-2099) periods were used to assess the conditions of the water balance components. The endo hydrogenic CRVB was divided into three sub-basins, and their respective hydroclimatic impacts were simulated separately with calibrated Arc-SWAT models. The future impacts simulated on the annual average basis vary in their maximum ranges from -65,2% to +85,8% in Q, from -42,2% to +23,9% in WY, and from -4,1% to +17,3% in ET compared to the baseline data outputs in the individual sub-basin. Water management options according to the water balance sensitivities to the climate impacts were proposed for each of the sub-basins. SWAT-based studies aimed at balanced water resources management in combination with agricultural practices within the CRVB are recommended for future research.

Název v anglickém jazyce

Hydroclimate Impact Analyses and Water Management in the Central Rift Valley Basin in Ethiopia

Popis výsledku anglicky

This study explores the impacts of climate change on the major components of the water balance such as surface runoff (Q), water yield (WY), and evapotranspiration (ET) in the Central Rift Valley Basin (CRVB) in Ethiopia. Projected climate data from the climate emission scenarios were used for the analyses. Representative concentration pathway (RCP) data from the MIROC-RCA4 ensemble driving climate models were downscaled, bias-corrected, and applied for impact analyses. Climate scenario analyses for the near-term (2031-2060) and long-term (2070-2099) periods were used to assess the conditions of the water balance components. The endo hydrogenic CRVB was divided into three sub-basins, and their respective hydroclimatic impacts were simulated separately with calibrated Arc-SWAT models. The future impacts simulated on the annual average basis vary in their maximum ranges from -65,2% to +85,8% in Q, from -42,2% to +23,9% in WY, and from -4,1% to +17,3% in ET compared to the baseline data outputs in the individual sub-basin. Water management options according to the water balance sensitivities to the climate impacts were proposed for each of the sub-basins. SWAT-based studies aimed at balanced water resources management in combination with agricultural practices within the CRVB are recommended for future research.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10503 - Water resources

Projekt

<a href="/cs/project/QK1910086" target="_blank" >QK1910086: Snižování zátěže povrchových vod zdroji plošného zemědělského znečištění při uplatnění regulace drenážního odtoku na stávajících stavbách zemědělského odvodnění</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Water

ISSN

2073-4441

e-ISSN

2073-4441

Svazek periodika

15

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

22

Strana od-do

—

Kód UT WoS článku

000909157200001

EID výsledku v databázi Scopus

2-s2.0-85146051495