Modelling hydrological processes under climate change scenarios in the Jemma sub-basin of upper Blue Nile Basin, Ethiopia
نویسندگان
چکیده
This study examines the response of hydrological processes to different climate change scenarios in Jemma sub-basin Blue Nile Basin. Future near-term (2021–2050) and long-term (2071–2100) were developed from six statistically bias corrected Regional Climate Models (RCMs) under two Representative Concentration Pathways (RCPs) scenarios: RCP4.5 RCP8.5. The outputs models used as input a calibrated validated Soil Water Assessment Tool (SWAT) model assess impact on hydrology sub-basin. For robust hydrologic representation, SWAT was at three River gauging stations provided an acceptable result. RCMs projected increase temperature all decrease rainfall ensemble mean scenarios. may cause consistent surface runoff total water yield evapotranspiration recommends management structures which can conserve for agriculture other ecosystem services similar areas Ethiopia.
منابع مشابه
Hydrological Response to Climate Change for Gilgel Abay River, in the Lake Tana Basin - Upper Blue Nile Basin of Ethiopia
Climate change is likely to have severe effects on water availability in Ethiopia. The aim of the present study was to assess the impact of climate change on the Gilgel Abay River, Upper Blue Nile Basin. The Statistical Downscaling Tool (SDSM) was used to downscale the HadCM3 (Hadley centre Climate Model 3) Global Circulation Model (GCM) scenario data into finer scale resolution. The Soil and W...
متن کاملLand-Use Change Modelling in the Upper Blue Nile Basin
Land-use and land-cover changes are driving unprecedented changes in ecosystems and environmental processes at different scales. This study was aimed at identifying the potential land-use drivers in the Jedeb catchment of the Abbay basin by combining statistical analysis, field investigation and remote sensing. To do so, a land-use change model was calibrated and evaluated using the SITE (SImul...
متن کاملClimate Change Impacts on Hydrology and Water Resources of the Upper Blue Nile River Basin, Ethiopia
Research Reports IWMI's mission is to improve the management of land and water resources for food, livelihoods and environment. In serving this mission, IWMI concentrates on the integration of policies, technologies and management systems to achieve workable solutions to real problems—practical, relevant results in the field of irrigation and water and land resources. The publications in this s...
متن کاملClimate Change Induced Vulnerability of Smallholder Farmers: Agroecology-Based Analysis in the Muger Sub-Basin of the Upper Blue-Nile Basin of Ethiopia
Ethiopia is also frequently identified as a country that is highly vulnerable to climate variability and change. The potential adverse effects of climate change on Ethiopia’s agricultural sector are a major concern, particularly given the country’s dependence on agricultural production, which is sensitive to climate change and variability. This problem calls the need to understand agroecology b...
متن کاملImpact of Climate Change on Runoff in the Gilgel Abbay Watershed, the Upper Blue Nile Basin, Ethiopia
Hydrological assessment is critical to the successful implementation of adaption measures. In this study, projections of seven global circulation models (GCMs) associated with high and medium–low Representative Concentration Pathways (RCP 8.5 and RCP 4.5) for the period 2021–2040 and 2081–2100 were adopted to assess changes on runoffs in the Gilgel Abbay watershed, the upper Blue Nile basin. A ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Climate Risk Management
سال: 2021
ISSN: ['2212-0963']
DOI: https://doi.org/10.1016/j.crm.2021.100272