Analysis of Climate Variability and Trends in Southern Ethiopia

Belay, Abrham; Demissie, Teferi; Recha, John W.M.; Oludhe, Christopher; Osano, Philip; Olaka, Lydia; Solomon, Daniel; Berhane, Zerihun

doi:10.3390/cli9060096

Cited by 75 publications

(53 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The slope of the whole months shows that there is a positive value implying an increase in the mean monthly and seasonal temperature. Belay et al (2021) has revealed similar result in southern Ethiopia. The average monthly and seasonal discharge of the Ajora-Woybo watershed from 1990 to 2015 is depicted in Fig.…”

Section: Analysis Of the Annual Rainfallsupporting

confidence: 60%

“…The global hydrological cycle is currently responding to the effects of global warming (IPCC, 2014), which include increased atmospheric water vapor concentration and shifting precipitation patterns (Belay et al, 2021;IPCC, 2014). Hydro-meteorological characteristics have considerably improved the most common forms of natural disasters in Sub-Saharan Africa, particularly in drought and humidity (Serdeczny et al, 2017;Teshome & Zhang, 2019).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Trend Analysis of Climatic and Hydrological Parameters in Ajora-Woybo Watershed, Omo-Gibe River Basin, Ethiopia

Toma

Belete

Ulsido

2022

Preprint

View full text Add to dashboard Cite

The identification of hydro-meteorological trends is essential for analyzing climate change and river discharge at the watershed level. The Ajora-Woybo watershed in Ethiopia was studied for long-term trends in rainfall, temperature, and discharge at the annual, monthly, and seasonal time scales. The rainfall and temperature data extend 1990 to 2020, whereas the discharge data span 1990 to 2015. The Pettit and SNHT tests were used to determine homogeneity. The Mann-Kendall and Sen's slope tests, as well as several variability measures, were then employed for trend analysis. The degree of relationship between climate variables and river discharge was determined using Pearson correlation coefficients (r). Inhomogeneity was discovered in annual rainfall data from the Angacha and Areka stations. Rainfall and discharge showed insignificant trends over time, with increasing and decreasing variability across stations. Monthly rainfall trends were observed to be significantly falling in February and March. Rainfall and runoff increase just insignificantly during the Kiremt season. Maximum, minimum, and mean annual temperatures, on the other hand, showed significant trends with annual increases of 0.04oC, 0.01oC, and 0.025oC, respectively. In this study, the relationships between discharge and temperature and rainfall were found to be minimal. Overall, the results of the long-term examination of the factors in the watershed show that water resources vary throughout and over time. As a result, caution is essential in designing appropriate strategies for water resource planning and sustainable development in the watershed.

show abstract

Section: Analysis Of the Annual Rainfallsupporting

confidence: 60%

Section: Introductionmentioning

confidence: 99%

Trend Analysis of Climatic and Hydrological Parameters in Ajora-Woybo Watershed, Omo-Gibe River Basin, Ethiopia

Toma

Belete

Ulsido

2022

Preprint

View full text Add to dashboard Cite

show abstract

“…In Ethiopia, the impact of climate change on the socio-economic fabric of society is tremendous (Auci et al, 2018). The southern parts of Ethiopia are most vulnerable, with significant rainfall variability and change resulting in prolonged drought and flood occurrences (Belay et al, 2021).…”

Section: Introduction and Problem Statementmentioning

confidence: 99%

Major climatic changes experienced by farm households: Evidence from the lowlands of Southern Ethiopia

2022

View full text Add to dashboard Cite

Ethiopia is one of the world’s most vulnerable countries experiencing drought and floods as a result of climate variability and change. This study examined the major climatic changes experienced by farm households in the lowlands of Southern Ethiopia. It utilized a mixed methods sequential explanatory design approach to triangulate quantitative data with qualitative data. Using a multi-stage sampling procedure, 400 farm household heads participated. Moreover, meteorological data were acquired from the National Meteorology Agency for the period from 2000 to 2019. Descriptive statistics, rainfall anomalies, and coefficient variation were used for data analysis. The findings show that over the last 20 years, the frequency and intensity of extreme weather had increased, and there was an overall change in the seasonality of rainfall. Drought assessment results showed that 2004, 2009, 2012, 2015, and 2017 were all drought years in the study districts. The results revealed that reduced crop production, flooding, crop losses, drought, malaria, and animal disease were the major climate change impacts that farm households experienced in the lowlands of Southern Ethiopia. The study suggests that drought-resistant crops and water harvesting schemes should be promoted to minimize the effects of climate change.

show abstract

“…According to Funk et al [13], continued warming in the Indian Ocean contributes to spring and summer droughts. Climate change is widely believed to be occurring in various parts of Ethiopia [14][15][16]. Observed changes in extremes in the country are dependent on the reliability and quantity of available data.…”

Section: Introductionmentioning

confidence: 99%

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

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.

show abstract

Analysis of Climate Variability and Trends in Southern Ethiopia

Cited by 75 publications

References 58 publications

Trend Analysis of Climatic and Hydrological Parameters in Ajora-Woybo Watershed, Omo-Gibe River Basin, Ethiopia

Trend Analysis of Climatic and Hydrological Parameters in Ajora-Woybo Watershed, Omo-Gibe River Basin, Ethiopia

Major climatic changes experienced by farm households: Evidence from the lowlands of Southern Ethiopia

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

Contact Info

Product

Resources

About