Seasonal And Annual Climate Profile of Boset District, East Shewa, Ethiopia

International Journal of Geoinformatics and Geological Science

© 2020 by SSRG - IJGGS Journal

Volume 7 Issue 2

Year of Publication : 2020

Authors : Abdisa Hirko, Gezehagn Mergia, Tilahun Dandesa, Asalifew Nigussie

10.14445/23939206/IJGGS-V7I2P109

How to Cite?

Abdisa Hirko, Gezehagn Mergia, Tilahun Dandesa, Asalifew Nigussie, "Seasonal And Annual Climate Profile of Boset District, East Shewa, Ethiopia," SSRG International Journal of Geoinformatics and Geological Science, vol. 7,  no. 2, pp. 65-74, 2020. Crossref, https://doi.org/10.14445/23939206/IJGGS-V7I2P109

Abstract:

This study scrutinizes the climate profile and appraises its social and economic values in reducing climaterelated impacts on Agricultural products over the Boset district. The study used CHIRPS data, daily, decadal, monthly, seasonal, and annual station data used from NMA. Statistical methods applied to generate recent climate characteristics and climate events of district and secondary data from published and unpublished sources, and systematically analyzes the data both using qualitative and quantitative analysis. The result showed that the trend of gradual, extreme events and meteorological drought increased agriculture vulnerability in the study area. According to the 38 years (1981-2019), CHRIPS Rainfall Estimates from Rain Gauge and Satellite Observations/CHIRP Blended with station data/ and the 31 years meteorological gauged station data(NMA). Averagely the season starts during the end of May while the season starts at the minimum period of April 1st decade. The season ends averagely at the end of September to October the first decade, and the minimum ends on September 2nddekade. Averagely the LGP of the district is more than 4 months, and the minimum and maximum are 3 and 5 months, respectively. The highest Annual and seasonal average Maximum and Minimum Temperature recorded over the district is 31.70Cand 32.90Cduring 2017and 2015, and the lowest is14.30C (2017) and10.00C (2017), respectively. The maximum temperature trend has been increasing, but the minimum temperature has been decreasing, which shows the climate changes over the district. Overall, the results of Belg and annual rainfall trends have been decreasing while Bega and Kiremt seasonal rainfall amount has been increasing. The driest year over the district has happened during El-Nino years 1987, 2002, and 2015in contrast to the wettest year of the district during La-Nina Year 1999, 2000, and 1998. The coldest year and the warmest were during 2014 and 2017correspondingly. Kiremt and Belg season rainfall variability increases in the recent decade.

Keywords:

CHRIPS, Rainfall, Temperature, Season, CV, SPI

References:

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