Spatio-temporal Variability and Trends of Rainfall and Temperature Over Gamo Gofa Zone, Ethiopia
Tefera Ashine Teyso, Agena Anjulo
Journal of Scientific Research and Reports · pp. 1–11 · Published 4 Oct 2016
10.9734/JSRR/2016/28667Abstract
This study examined spatiotemporal climate variability and trends of observed rainfall and temperature data from 1991-2010 over Gamo Gofa zone, southern Ethiopia. Normalized anomaly and coefficient of variation were analyzed to observe the variability of climate. Linear regression was used to analyze trends; Mann Kendall trend test was used for testing the significance and ArcGIS was used to map trend magnitudes and the statistical significance. Normalized anomaly of annual rainfalls showed the variability of dry and wet years at all stations. Coefficient of variation analysis indicated that variability of annual and seasonal rainfalls increased from west to east and to the south. Annual, June to August and September to November rainfalls showed both significant decreasing and increasing trends at different stations in the zone. Generally, most of the land area of the zone had experienced insignificant trends for both annual and seasonal rainfalls. Normalized anomaly of mean maximum and minimum temperature showed 2000s were warmer than 1990s at most of the stations. Mean annual and seasonal maximum temperature at all stations in the zone showed warming trends. Significant land of the zone had experienced both warming and cooling trends of minimum temperature for annual and seasonal timescales. These may result in failure of agricultural production that necessitates developing and implementing systematic planning and management activities in the crop calendar.
Cited by 26
Daniel Assefa Tofu, T. Woldeamanuel, Firafis Haile · Journal of Agriculture and Food Research · 2022
Mesfin Anteneh · Air, Soil and Water Research · 2022
Sibilo Gashure, Desalegn Wana · African Geographical Review · 2021
A. Habte, G. Mamo, W. Worku · Advances in Meteorology · 2021
Markato Markos, Mettu · Journal of environment and earth science · 2021
Yoseph Arba Orke, Ming-Hsu Li · Climate · 2021
D. Assefa, Mesfin Mengistu · 2021
D. Assefa, Firafis Haile · 2021
Andrea Zirulia, Mariantonietta Brancale, Alessio Barbagli · Rendiconti Lincei SCIENZE FISICHE E NATURALI · 2021
Ashenafi Hailu Shekuru, Arega B Berlie, Yechale Kebede Bizuneh · Arabian Journal of Geosciences · 2020
Related research
- Tropical Forest: A Potential Resource for Climate Change Mitigation in Ghana — shares topic coverage
- Investigation of Climate Variability Over High Rainfall Zone of Tamil Nadu, India — shares topic coverage
- Assessment of Croplands’ Exposure to Climate Variability in the Federal Capital Territory (FCT), Abuja, Nigeria — shares topic coverage
- Opportunities and Constraints for Disaster Risk Reduction and Resilience Building among the Kenyan Pastoral Communities, Mandera County, Kenya — shares topic coverage
- Local Perception of Climate Variability as a Guide to Weather Forecasting and Farmer Decision Making in Beaniky and Antseky Ambovombe – Androy, Madagascar — shares topic coverage
Article metrics
Real usage data collected on this platform.
0
Page views
0
PDF downloads
0
Outbound clicks
26
Citations
Views by country
Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".
No views recorded yet.
Traffic sources
Referring site, by host.
No traffic recorded yet.
Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.