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Trends of rainfall onset, cessation, and length of growing season in northern Ghana: comparing the rain gauge, satellite, and farmer's perceptions

dc.contributor.authorAtiah, W.A.
dc.contributor.authorMuthoni, F.K.
dc.contributor.authorKotu, B.H.
dc.contributor.authorKizito, F.
dc.contributor.authorAmekudzi, L.K.
dc.date.accessioned2022-09-19T09:22:31Z
dc.date.available2022-09-19T09:22:31Z
dc.date.issued2021-12-13
dc.identifier.citationAtiah, W.A., Muthoni, F.K., Kotu, B., Kizito, F. & Amekudzi, L.K. (2021). Trends of rainfall onset, cessation, and length of growing season in northern Ghana: comparing the rain gauge, satellite, and farmer's perceptions. Atmosphere, 12(12):1674, 1-20.
dc.identifier.issn2073-4433
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7766
dc.description.abstractRainfall onset and cessation date greatly influence cropping calendar decisions in rain-fed agricultural systems. This paper examined trends of onsets, cessation, and the length of growing season over Northern Ghana using CHIRPS-v2, gauge, and farmers’ perceptions data between 1981 and 2019. Results from CHIRPS-v2 revealed that the three seasonal rainfall indices have substantial latitudinal variability. Significant late and early onsets were observed at the West and East of 1.5◦ W longitude, respectively. Significant late cessations and longer growing periods occurred across Northern Ghana. The ability of farmers’ perceptions and CHIRPS-v2 to capture rainfall onsets are time and location-dependent. A total of 71% of farmers rely on traditional knowledge to forecast rainfall onsets. Adaptation measures applied were not always consistent with the rainfall seasonality. More investment in modern climate information services is required to complement the existing local knowledge of forecasting rainfall seasonality.
dc.description.sponsorshipUnited States Agency for International Development
dc.format.extent1-20
dc.language.isoen
dc.subjectFarmers
dc.subjectRainfall
dc.subjectClimate Change Adaptation
dc.titleTrends of rainfall onset, cessation, and length of growing season in northern Ghana: comparing the rain gauge, satellite, and farmer's perceptions
dc.typeJournal Article
cg.contributor.crpMaize
cg.contributor.affiliationKwame Nkrumah University of Science and Technology
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryGhana
cg.coverage.hubEastern Africa Hub
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiometrics
cg.researchthemeNatural Resource Management
cg.identifier.bibtexciteidATIAH:2021
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectClimate Change
cg.iitasubjectCrop Systems
cg.iitasubjectFood Security
cg.iitasubjectFood Systems
cg.journalAtmosphere
cg.notesOpen Access Journal; Published online: 13 Dec 2021
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://doi.org/10.3390/atmos12121674
cg.iitaauthor.identifierMuthoni, Francis: 0000-0001-6785-0550
cg.iitaauthor.identifierBekele Hundie Kotu: 0000-0001-5788-6461
cg.iitaauthor.identifierFred Kizito: 0000-0002-7488-2582
cg.futureupdate.requiredNo
cg.identifier.issue12: 1647
cg.identifier.volume12


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