Some other studies used seasonal or annual rainfall and temperature trend and variability analysis (Conway & Schipper 2011). The convergence of Northeast Trade winds and the Equatorial Westerlies forms theITCZ, which is a low-pressure zone.The inter-annual oscillation of the surface position of theITCZ causes a variation in the Wind flow patterns over Ethiopia and the Horn. However, some parts of thecountry enjoy a temperate climate. The moving average is possibly acquired by considering the initial subset average. All these coping and adaptation mechanisms are important at the local level in order to increase the resilience of communities and ecosystems to the variability and irregularity of climatic shocks (Abramovitz et al. Explore historical and projected climate data, climate data by sector, impacts, key vulnerabilities and what adaptation measures are being taken. discuss spatiotemporal distribution of temperature and rainfall in ethiopia. Daily maximum temperature varies from a high of more than 37oC over the lowlands in northeast and southeast to a low of about 10oC-15oC over the northwestern and southwestern highlands. This study analyses spatiotemporal variability and trends in rainfall and temperature in Alwero watershed, western Ethiopia. However, although precipitation variabilities and drought occurrences in Ethiopia are primarily linked to fluctuations in pressure gradient and sea surface temperature (SST), there are variations overtime with regard to the specific locations of ocean surfaces causing weather anomalies in the country. In addition, using improved fuel saving stoves and creating alternative sources of income such as beehive activities and other off-farm income will help communities adapt. 5.1 The region experiences most of its rain during summer (kiremt), while some placesalso receive spring (Belg) rain. It is a rainfall region in the southwestern partof the country. Five years moving average rainfall (19802014). According to a report made by the Intergovernmental Panel on Climate Change (Parry 2007; Pachauri et al. In a study by Mekasha et al. It lies between 1500-2,300 meters above sea level. contribution of working group I to the third assessment report of the intergovernmental panel on climate change, Techniques of trend analysis for monthly water quality data, Global warming and African climate change: a reassessment, Long-term variations and trends in precipitation in Finland, Theory and practice in assessing vulnerability to climate change and facilitating adaptation, The value of large-scale climate variables in climate change assessment: the case of Botswana's rainfall, Precipitation climatology over India: validation with observations and reanalysis datasets and spatial trends, Climate change impacts on groundwater and dependent ecosystems, Downscaled climate change projections with uncertainty assessment over India using a high resolution multi-model approach, Precipitation variability in Northeast China from 1961 to 2008, Adapting cropping systems to climate change in Nepal: a cross-regional study of farmers perception and practices, The UNDP Climate Change Country Profiles: improving the accessibility of observed and projected climate information for studies of climate change in developing countries, Trends in daily observed temperature and precipitation extremes over three Ethiopian eco-environments, http://agris.fao.org/agris-search/search.do?recordID=ET2009000029, Analyses of land use and land cover change dynamics using GIS and remote sensing during 1984 and 2015 in the Beressa Watershed Northern Central Highland of Ethiopia, Contrasting climate variability and meteorological drought with perceived drought and climate change in northern Ethiopia, Using the seasonal and temporal precipitation concentration index for characterizing the monthly rainfall distribution in Spain, Spatial and temporal analysis of rainfall and temperature trend of India, Spatio-temporal trend analysis of precipitation data over Rwanda, Monthly precipitation distribution: a comparative index, Trend analysis in Turkish precipitation data, Spatial and temporal trends of mean and extreme rainfall and temperature for the 33 urban centers of the arid and semi-arid state of Rajasthan, India, Trend analysis of climatic variables in an arid and semi-arid region of the Ajmer District, Rajasthan, India, Climate variability and educational attainment: evidence from rural Ethiopia, An assessment of the potential impact of climate change on flood risk in Mumbai, Assessment of statistical characteristics of point rainfall in the Onkaparinga catchment in South Australia, Assessment of trends in point rainfall using Continuous Wavelet Transforms, Rainfall variability in the Ethiopian and Eritrean highlands and its links with the Southern Oscillation Index, Recent changes in rainfall and rainy days in Ethiopia, Building climate resilience in the Blue Nile/Abay Highlands: a framework for action, Changes in rainfall and relative humidity in river basins in northwest and central India, An investigation into observational characteristics of rainfall and temperature in Central Northeast India a historical perspective 18892008, Long-term historic changes in climatic variables of Betwa Basin, India, Modeling runoffsediment response to land use/land cover changes using integrated GIS and SWAT model in the Beressa watershed, Household level tree planting and its implication for environmental conservation in the Beressa Watershed of Ethiopia, Spatiotemporal analysis of precipitation trends under climate change in the upper reach of Mekong River basin, Long-term trend analysis for major climate variables in the Yellow River basin, Spatial analysis of monthly and annual precipitation trends in Turkey, Power of the MannKendall and Spearman's rho tests for detecting monotonic trends in hydrological series, Canadian streamflow trend detection: impacts of serial and cross-correlation, Analysis of precipitation characteristics during 19572012 in the semi-arid Loess Plateau, China, Uniform distribution of precipitation (lLow concentration), Moderate distribution of precipitation (moderate concentration), Strong irregularity of precipitation distribution, Republic Export Building,Units 1.04 & 1.05. Information should be used to build a strong understanding of current climate conditions in order to appreciate future climate scenarios and projected change. Both increasing and decreasing trends of climatic variables were observed. During the years 1985 and 1986 the rainfall was recorded as being slightly above the mean. The trend of increasing maximum temperature is stronger than the minimum temperature. In kiremit season, rain is essential but it extends to the bega season during the harvesting stage. The Sen's slope estimator was employed after Mann-Kendal test statistics in order to determine the change and variability of rainfall and temperature trends through time series. Contribution of Working Groups I, II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Climate Change 2007 Impacts, Adaptation and Vulnerability: Working Group II Contribution to the Fourth Assessment Report of the IPCC, Climate Change 2007 the Physical Science Basis: Working Group I Contribution to the Fourth Assessment Report of the IPCC, IPCC, 2013: Climate Change 2013: the Physical Science Basis. As presented in Table3, the Sen's slope estimator indicates an upward trend in four stations and a downward trend in three stations for annual rainfall. Crop production showed high correlation with belg and kiremit rainfall; only annual rainfall and barley crops showed stronger correlation. Conversely, low temperatures are recorded fromNovember to February.It is not easy to observe distinct variation in temperature between seasons as the sun is alwayshigh in the tropics. Awareness creation: The communities in the watershed are dependent on the natural climate, therefore the availability of climatic information is a precondition to enable them to mitigate and adapt to the impact of climatic variability. During thisseason, Ethiopia and the Horn come under the influence of the Equatorial Westerlies (Guineamonsoon) and Easterlies.Hence, the Guinea monsoon and the South easterly winds areresponsible for the rain in this season.ii. The exact position of the ITCZchanges over the course of the year, oscillating across the equator. Wondering how to get your business idea off on the right foot in the competitive..Learn More, Are you looking for a digital partner for your agency? Spring (March, April and May)In this season, the noonday sun is shining directly on the equator while shifting north from south.The shift of the ITCZ, results in longer days and more direct solar radiation providing warmerweather for the northern world. Mean annual minimum and maximum temperatures increased from 12.69 to 13.32 C and 26.43 to 26.91 C from 1981 to 2010, respectively. WebEthiopia. The study watershed lies between 39 37E39 32E and 9 40N9 41N. Therefore, long-term analysis of climatic trends has been used to characterize the situations (Singh et al. The possible reason may be monthly, sub-monthly time scale, temporal and spatial distribution of rainfall and temperature, which are determinant factors of production. For this purpose, SST and rainfall data were used to study a wide range of inhomogeneous areas in Ethiopia with uneven distribution of rainfall for both summer (1951–2015) and spring Therefore, in order to know the yields, annual rainfall is less important for prediction. 2015). This is probably due to the fluctuation and variability of the seasonal and inter-annual rainfall pattern of the Beressa watershed during the last few decades, as indicated in Table3, which is similar to other studies (Muhire & Ahmed 2015; Zhao et al. Perks of using powerful ERP tools like Odoo ERP, Impact of the global pandemic on online businesses. Precipitation projections indicate increased mean precipitation with more frequent extreme rainfall during monsoon season in the EH region, and a wetter cold season in the WH region. Therefore, depending on the historical trend of rainfall variability and prolonged temperature increase, appropriate coping and adaptation strategies need to be encouraged. Another study by Di Falco et al. Seasonal analysis of rainfall obtained from MK test statistic results are presented in Table3. Daspal Technology is..Learn More, Daspal Technology has been a forerunner in enabling the IT transformation of businesses across the..Learn More, Most of the enterprises are at present shifting towards the custom software solutions rather than..Learn More, Daspal Technology offers the best cloud services to a number of customers ranging from start-ups to..Learn More, Daspal Technology is the trusted and leading name in the business which offers a range of IT solutions..Learn More, Daspal Technology is a reputed Information Technology firm that takes pride in offering consulting services..Learn More, Internet of Things or IoT concept is transforming the global business space in a rapid manner. Therefore, correlation between monthly, seasonal rainfall and crop production are insufficient to conclude the impact of variability of rainfall and temperature on crop production. (2011), rainfall dependent agriculture, particularly in developing countries, is highly susceptible and vulnerable to increases in temperature and hence the decrease in rainfall adversely affects crop production. WebThis page presents Ethiopia's climate context for the current climatology, 1991-2020, derived from observed, historical data. discuss spatiotemporal distribution of temperature and rainfall in ethiopia happy to be a part of the team synonym 2023 "Moroni's America" - The North During these seasons, rainfall is more highly variable than the main rainy season of the area. Copyrights 2022. Thus temperature, as it is affected by altitude, decreasestowards the interior highlands. Rock and Mineral Resources of Ethiopia, CHAPTER THREE THE TOPOGRAPHY OF ETHIOPIA AND THE HORN, 3.2. Generally, the climate is controlled by the Intertropical Convergence Zone (ITCZ) and has a clear bimodal rainfall pattern: the rainy season is from June to September, and the dry season is from October to April. Autumn (September, October and November)Autumnis the season of the year between summer and winter. 5.1 Reasons that make CRM systems important: Why Zoho CRM is in the hype now. Correlation between crop production, and rainfall and temperature (19972014). Sponsored Schools. The temperature and rainfall of this category is highly suitable for majority of crops grown in Ethiopia. 2013; Irannezhad et al. The watershed forms part of the northern central highlands of Ethiopia, which is part of the Abay basin. If yes, then look no further. The rainfall and temperature daily records over 35 years (19802014) for the Beressa watershed were obtained from the National Meteorological Service Agency of Ethiopia from seven stations; hence rainfall on a monthly, seasonal and annual basis were derived from the daily data. A significant increase in annual mean temperature was observed in all stations, with the magnitude varying from 0.03 C/year and 7.60% in DB station to 0.14 C/year and 31.30% at SD station. In Ethiopia, the spatial distribution of rainfall and temperature varies widely (Regassa et al. The annual rainfall distribution is also variable in time and space. Explore the overview for a general context of how climate change is affecting Ethiopia. Therefore, clear information about the annual and seasonal rainfall distribution is highly important for policy planners and local users. This cereal crop shows stronger correlation with the kiremit rains. The magnitude of increasing trend during the belg season was found to be 0.40 mm/year and 30.00% in DB station and a significantly decreasing trend was found to be 0.12 mm/year and 10.00 in GIN station. Geological Processes and the Resulting Landforms of Ethiopia and the Horn, 2.5. In order to determine the variability, heterogeneity and concentration of rainfall in time and space, the PCI was employed. 2017a, 2017b). Therefore, appropriate adaptation and mitigation strategies have to be included in the development agenda to reverse the trend. In view of this, the incidence of food shortage is a common occurrence. After total observation of the 35-year period, a record 16 years (45.7%) were lower than the total annual rainfall of the area. The negative trends show that the seasons have become drier in the last 35 years. Months in summer gainhighest rainfall whereas the winter months receive the reduced amount. Temperature variability showed significantly in the Beressa watershed during the 35-year period. In the last few decades, incidence of climate change related hazards have manifested in the form of recurrent drought, erosive rain, rainfall variability and flood events (Kenabatho et al. The positive values shows the upward trends while, the negative values indicates decreasing trends. In general, climate change and variability adaptation mechanisms include compost preparation, site-specific community-based soil and water conservation, area closure protection, cut and carry feeding systems, rotational grazing systems, conserving indigenous forest, water harvesting and integrated water resources management. 2013; Pingale et al. The calculated PCI for seasonal as well as inter-annual rainfall distribution for the spatiotemporal time series is shown in Table2. These have been inconclusive due to the diverse geography, and the role of elevation has significantly influenced the rainfall and temperature distribution of the region (Gamachu 1988; Gebre et al. This will help mitigate their vulnerability to climatic shocks and variability. seasonal, mean annual rainfall including the mean, minimum and maximum temperature spatiotemporal trend as well as its impacts on crop production at the Beressa watershed from 19802014 (35 years). For the kiremit (summer season), the main rainfall source is the northward oscillation of ITCZ and the development of high-pressure systems along the southern Atlantic as well as South Indian Oceans. Water Resources Potentials and Development in Ethiopia, CHAPTER FIVE THE CLIMATE OF ETHIOPIA AND THE HORN, 5.2. Explore historical and projected climate data, climate data by sector, impacts, key vulnerabilities and what adaptation measures are being taken. Generally, as can be seen from Figure3, there has been a high increase in overall temperature, which may result in a decrease in productivity and food insecurity. The Geologic Processes: Endogenic and Exogenic Forces, 2.3. Results of correlation analysis between monthly and seasonal rainfall with crop production were insufficient to conclude the impact of rainfall and temperature on crop production. The south-easterlies bring rainfall from the IndianOcean. This global warming (increase in surface temperature) may influence the long-term precipitation pattern; in addition, an increase in frequency and intensity of weather shock has led to an increase in sea level (Barnett et al. About 60 percent of the rain is in autumn and 40 percent in spring. Out of seven stations, long-term annual maximum temperature has shown a significantly increasing trend (three stations at 5% significance level and two stations at 10% significance level). 2015; Pingale et al. 2012; Meshesha et al. 2009). 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