Spatiotemporal monitoring of drought using satellite precipitation products: The case of Borena agro-pastoralists and pastoralists regions, South Ethiopia
Drought is increasingly affecting farmers in agro-pastoralist and pastoralists region. It is one of the most harmful natural disasters that significantly affects rain-fed agriculture in developing countries. Drought assessment is an important component of drought risk management. This study used CHI...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-03-01
|
| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023011970 |
| _version_ | 1797851901871521792 |
|---|---|
| author | Indale Niguse Dejene Mitiku Badasa Moisa Dessalegn Obsi Gemeda |
| author_facet | Indale Niguse Dejene Mitiku Badasa Moisa Dessalegn Obsi Gemeda |
| author_sort | Indale Niguse Dejene |
| collection | DOAJ |
| description | Drought is increasingly affecting farmers in agro-pastoralist and pastoralists region. It is one of the most harmful natural disasters that significantly affects rain-fed agriculture in developing countries. Drought assessment is an important component of drought risk management. This study used CHIRPS rainfall data to monitor the characteristics of drought in Borena Zone in southern Ethiopia. The standardized precipitation index (SPI) is used to calculate the magnitude, intensity, and severity of drought during the rainy season. Results show that severe and extreme droughts were detected in the first rainy season (March to May) and second wet season (September to November). Severe and extreme droughts were detected in the first rainy/wet season in 1992, 1994, 1999, 2000, 2002–2004, 2008,2009, 2011, 2019–2021. The spatial and temporal variability of drought is highly influenced by El Nino-Southern Oscillation (ENSO) in Ethiopia. Results revealed that most of the first rainy season was dry. 2011 was the driest year during the first wet season. Drought risk events in the first wet season were greater than in the second wet season. Results show that drought more frequently occurred in the northern and southern part in the first wet season. In the second rainy season extreme drought was detected in 1990, 1992, 1993, 1994, 1996, and 1997. The results of this study will promote the importance of early warning measures, drought risk management, and food security management in the study area. |
| first_indexed | 2024-04-09T19:24:15Z |
| format | Article |
| id | doaj.art-351de055bae844c9992d8a13581c4d39 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-09T19:24:15Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-351de055bae844c9992d8a13581c4d392023-04-05T08:20:14ZengElsevierHeliyon2405-84402023-03-0193e13990Spatiotemporal monitoring of drought using satellite precipitation products: The case of Borena agro-pastoralists and pastoralists regions, South EthiopiaIndale Niguse Dejene0Mitiku Badasa Moisa1Dessalegn Obsi Gemeda2Department of Earth Sciences, College of Natural and Computational Sciences, Wollega University, Nekemte Campus, EthiopiaDepartment of Agricultural Engineering, Faculty of Technology, Wollega University, Shambu Campus, EthiopiaDepartment of Natural Resource Management, College of Agriculture and Veterinary Medicine, Jimma University, Ethiopia; Corresponding author.Drought is increasingly affecting farmers in agro-pastoralist and pastoralists region. It is one of the most harmful natural disasters that significantly affects rain-fed agriculture in developing countries. Drought assessment is an important component of drought risk management. This study used CHIRPS rainfall data to monitor the characteristics of drought in Borena Zone in southern Ethiopia. The standardized precipitation index (SPI) is used to calculate the magnitude, intensity, and severity of drought during the rainy season. Results show that severe and extreme droughts were detected in the first rainy season (March to May) and second wet season (September to November). Severe and extreme droughts were detected in the first rainy/wet season in 1992, 1994, 1999, 2000, 2002–2004, 2008,2009, 2011, 2019–2021. The spatial and temporal variability of drought is highly influenced by El Nino-Southern Oscillation (ENSO) in Ethiopia. Results revealed that most of the first rainy season was dry. 2011 was the driest year during the first wet season. Drought risk events in the first wet season were greater than in the second wet season. Results show that drought more frequently occurred in the northern and southern part in the first wet season. In the second rainy season extreme drought was detected in 1990, 1992, 1993, 1994, 1996, and 1997. The results of this study will promote the importance of early warning measures, drought risk management, and food security management in the study area.http://www.sciencedirect.com/science/article/pii/S2405844023011970Borena ZoneCHRIPSDrought intensityDrought severitySatellite rainfall product |
| spellingShingle | Indale Niguse Dejene Mitiku Badasa Moisa Dessalegn Obsi Gemeda Spatiotemporal monitoring of drought using satellite precipitation products: The case of Borena agro-pastoralists and pastoralists regions, South Ethiopia Heliyon Borena Zone CHRIPS Drought intensity Drought severity Satellite rainfall product |
| title | Spatiotemporal monitoring of drought using satellite precipitation products: The case of Borena agro-pastoralists and pastoralists regions, South Ethiopia |
| title_full | Spatiotemporal monitoring of drought using satellite precipitation products: The case of Borena agro-pastoralists and pastoralists regions, South Ethiopia |
| title_fullStr | Spatiotemporal monitoring of drought using satellite precipitation products: The case of Borena agro-pastoralists and pastoralists regions, South Ethiopia |
| title_full_unstemmed | Spatiotemporal monitoring of drought using satellite precipitation products: The case of Borena agro-pastoralists and pastoralists regions, South Ethiopia |
| title_short | Spatiotemporal monitoring of drought using satellite precipitation products: The case of Borena agro-pastoralists and pastoralists regions, South Ethiopia |
| title_sort | spatiotemporal monitoring of drought using satellite precipitation products the case of borena agro pastoralists and pastoralists regions south ethiopia |
| topic | Borena Zone CHRIPS Drought intensity Drought severity Satellite rainfall product |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023011970 |
| work_keys_str_mv | AT indalenigusedejene spatiotemporalmonitoringofdroughtusingsatelliteprecipitationproductsthecaseofborenaagropastoralistsandpastoralistsregionssouthethiopia AT mitikubadasamoisa spatiotemporalmonitoringofdroughtusingsatelliteprecipitationproductsthecaseofborenaagropastoralistsandpastoralistsregionssouthethiopia AT dessalegnobsigemeda spatiotemporalmonitoringofdroughtusingsatelliteprecipitationproductsthecaseofborenaagropastoralistsandpastoralistsregionssouthethiopia |