Evaluating the performances of gridded satellite/reanalysis products in representing the rainfall climatology of Ethiopia

Endeg Aniley; Temesgen Gashaw; Tesfalem Abraham; Sintayehu Fetene Demessie; Haimanote Kebede Bayabil; Abeyou W. Worqlul; Pieter R. van Oel; Yihun T. Dile; Abebe Demissie Chukalla; Amare Haileslassie; Gizachew Belay Wubaye

doi:10.1080/10106049.2023.2278329

Geocarto International (Dec 2023)

Evaluating the performances of gridded satellite/reanalysis products in representing the rainfall climatology of Ethiopia

Endeg Aniley,
Temesgen Gashaw,
Tesfalem Abraham,
Sintayehu Fetene Demessie,
Haimanote Kebede Bayabil,
Abeyou W. Worqlul,
Pieter R. van Oel,
Yihun T. Dile,
Abebe Demissie Chukalla,
Amare Haileslassie,
Gizachew Belay Wubaye

Affiliations

Endeg Aniley: Department of Natural Resource Management, College of Agriculture and Environmental Science, Bahir Dar University, Bahir Dar, Ethiopia
Temesgen Gashaw: Department of Natural Resource Management, College of Agriculture and Environmental Science, Bahir Dar University, Bahir Dar, Ethiopia
Tesfalem Abraham: Department of Water Resources and Irrigation Engineering, Institute of Technology, Hawassa University, Hawassa, Ethiopia
Sintayehu Fetene Demessie: Africa Center of Excellence for Climate-Smart Agriculture and Biodiversity Conservation, Haramaya University, Dire Dawa, Ethiopia
Haimanote Kebede Bayabil: Department of Agricultural and Biological Engineering, Tropical Research and Education Center, IFAS, University of Florida, Homestead, FL, USA
Abeyou W. Worqlul: International Center for Agricultural Research in the Dry Areas (ICARDA), Addis Ababa, Ethiopia
Pieter R. van Oel: Wageningen University & Research, Water Resources Management Group, Wageningen, Netherlands
Yihun T. Dile: College of Agriculture and Life Sciences, Texas A&M University, College Station, TX, USA
Abebe Demissie Chukalla: The Department of Land and Water Management, IHE Delft Institute for Water Education, Delft, Netherlands
Amare Haileslassie: International Water Management Institute, Addis Ababa, Ethiopia
Gizachew Belay Wubaye: Department of Natural Resource Management, College of Agriculture and Environmental Science, Bahir Dar University, Bahir Dar, Ethiopia

DOI: https://doi.org/10.1080/10106049.2023.2278329
Journal volume & issue: Vol. 38, no. 1

Abstract

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AbstractThis study evaluated performances of the Climate Hazard Group Infrared Precipitation with stations version 2.0 (CHIRPS v2.0) and Multi-Source Weighted-Ensemble Precipitation version 2.8 (MSWEP v2.8) products against observed data. Rainfall climatology was simulated for different agro-ecological zones (AEZs) of Ethiopia during 1991–2020 at different temporal scales. Performance evaluations were made using continuous and statistical performance measures as well as Probability Density Function (PDF). CHIRPS v2.0 for estimating monthly, seasonal, and annual rainfall totals, and MSWEP v2.8 for daily rainfall have shown better performance over all AEZs. The two products display comparable performance for detecting daily rainfall occurrences over alpine AEZ, but MSWEP v2.8 is superior in the rest four AEZs. CHIRPS v2.0 outperforms MSWEP v2.8 for detecting most of the daily rainfall intensity classes over all AEZs. The findings will play a noteworthy role to improve the quality of hydro-climate studies in Ethiopia.

Published in Geocarto International

ISSN: 1010-6049 (Print); 1752-0762 (Online)
Publisher: Taylor & Francis Group
Country of publisher: United Kingdom
LCC subjects: Geography. Anthropology. Recreation: Physical geography
Website: https://www.tandfonline.com/tgei

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