Modeling seasonal and annual climate variability trends and their characteristics in northwestern Escarpment of Ethiopian Rift Valley

Ahmed, Jemal Nasir; Assefa, Engdawork; Zeleke, Tesfaye; Gidey, Eskinder

doi:10.1007/s40808-021-01247-9

Cited by 4 publications

(2 citation statements)

References 43 publications

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“…Worku et al [52] reported a decrease of total rainfall in Alemketema and Mehalmeda stations in the Jema subbasin of the Blue Nile. Nasir et al [60], in their study in the northwestern escarpment of Ethiopia, show a significant increase in Tmax and Tmin over the studied livelihood zone. Similar findings were reported by Shawul and Chakma [61] over Upper Awash.…”

Section: Observed Annual Trend In Mean Temperature and Rainfallmentioning

confidence: 82%

Spatiotemporal Changes in Mean and Extreme Climate: Farmers’ Perception and Its Agricultural Implications in Awash River Basin, Ethiopia

Damtew

Teferi

Ongoma

et al. 2022

Climate

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The increase in the intensity and frequency of climate extremes threatens socioeconomic development. This study examines variability of mean and extreme climate, farmers’ perception of the changes, and impacts in the Awash River Basin. Daily rainfall and temperature data were used to analyze 23 extreme climate indices. The Mann–Kendall test was used to assess the magnitude and significance of the changes. Results show an increase in minimum (0.019–0.055 °C/year) and maximum temperatures (0.049–0.09 °C/year), while total rainfall is on a downward trend (from −3.84 mm/year to −10.26 mm/year). Warm extreme temperature indicators, including warmest day (TXx), warmest night (TNx), warm day (TX90p), warm night (TN90p), and warm spell duration indicator (WSDI), show a significant increasing trend (p < 0.05). Nevertheless, except the tepid–cool humid agroecology zone, cold extreme temperature indicators in cool days (TN10p), cool nights (TX10p), and cold spell duration (CSDI) are declining. Extreme precipitation indices, including maximum 1-day precipitation amount (RX1day), count of days when precipitation ≥10 mm (R10 mm), maximum 5-day precipitation amount (RX5day), count of days when precipitation ≥20 mm (R20mm), very wet days (R95p), extreme wet days (R99p), and total precipitation (PRCPTOT), show a decreasing trend. The perception of most farmers’ on climate change and climate extremes agreed with climate records. The major impacts perceived and asserted over all agroecologies are food price inflation, crop productivity decline, crop pests and diseases spread, livestock disease increase, and the emergence of pests and weeds. The increasing trend in extreme warm temperatures, decreasing trend in the cold extreme, and declining trend in precipitation indicators affected agricultural productivity and farmers whose livelihood depends on rainfed agriculture. This agroecology-specific study provides critical information to policymakers, decision makers, and farmers about the potential impacts of climate change and extreme events, leading to the development of agroecology-based adaptation measures.

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Section: Observed Annual Trend In Mean Temperature and Rainfallmentioning

confidence: 82%

Spatiotemporal Changes in Mean and Extreme Climate: Farmers’ Perception and Its Agricultural Implications in Awash River Basin, Ethiopia

Damtew

Teferi

Ongoma

et al. 2022

Climate

View full text Add to dashboard Cite

show abstract

“…Variations in rainfall amount, distribution, trends, and rising temperatures directly impacted rainfed agriculture productivity and farmers' livelihoods who rely heavily on agriculture [ [18] , [19] , [20] ]. In drought-prone parts of Ethiopia, production from rainfed agriculture is highly variable [ [21] , [22] , [23] ], corresponding to the amount, the duration, and the spatial distribution of rainfall [ 24 ]. To tackle the impact of the rainfall variability in the areas of abundant surface water, supplementing rainfed agriculture with small-scale irrigation-based schemes is encouraged by the government of Ethiopia [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Impacts of small-scale irrigation on farmers' livelihood: Evidence from the drought prone areas of upper Awash sub-basin, Ethiopia

Maru

Haileslassie

Zeleke

2023

Heliyon

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Modeling the Vulnerability of Livelihood Systems to Drought along Livelihood Zones in the Northwestern Escarpment of the Ethiopian Rift Valley

Ahmed

Tilahun

Italemahu

et al. 2022

Papers in Applied Geography

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Modeling seasonal and annual climate variability trends and their characteristics in northwestern Escarpment of Ethiopian Rift Valley

Cited by 4 publications

References 43 publications

Spatiotemporal Changes in Mean and Extreme Climate: Farmers’ Perception and Its Agricultural Implications in Awash River Basin, Ethiopia

Spatiotemporal Changes in Mean and Extreme Climate: Farmers’ Perception and Its Agricultural Implications in Awash River Basin, Ethiopia

Impacts of small-scale irrigation on farmers' livelihood: Evidence from the drought prone areas of upper Awash sub-basin, Ethiopia

Modeling the Vulnerability of Livelihood Systems to Drought along Livelihood Zones in the Northwestern Escarpment of the Ethiopian Rift Valley

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