000 03464nab a22003617a 4500
999 _c62011
_d62003
001 62011
003 MX-TxCIM
005 20240826224818.0
008 200602s2020 ne ||||| |||| 00| 0 eng d
022 _a2212-0947
024 8 _ahttps://doi.org/10.1016/j.wace.2020.100263
040 _aMX-TxCIM
041 _aeng
100 1 _913713
_aAdeme, D.
245 1 0 _aClimate trends and variability at adaptation scale :
_bpatterns and perceptions in an agricultural region of the Ethiopian Highlands
260 _aAmsterdam (Netherlands) :
_bElsevier,
_c2020.
500 _aPeer review
500 _aOpen Access
520 _aAnalysis of climate variability and trends frequently takes place at large scale. For agricultural applications, however, highly localized climate conditions can be critically important. This certainly applies to tropical highland regions, where dissected topography and convectively dominated precipitation processes can lead to strong variability in both mean climate conditions and year-to-year climate variability. This study examines recent climate variability and trends (1981–2016) on Choke Mountain, located in the western Ethiopian Highlands. Through analysis of precipitation and temperature records at monitored locations, we explore observed variability in climate patterns and trends across sites and seasons. The lens for our spatial analysis is the agroecosystem (AES), defined on the basis of prevailing climate and cropping systems, which currently serve as the foundation for climate adaptation planning in the region. We find that interannual temperature variability is greatest in the hottest, driest AES, and is most pronounced in the dry season. All AES warmed significantly in all seasons over the analysis period, but the magnitude of trend was greatest in high elevation AES. Precipitation variability was also large across AES, with largest interannual variability found in the dry season. This season is frequently excluded in climate analyses, but it is a critical harvest time and irrigation period. Trends in rainfall anomaly and precipitation concentration index are less clear, but there is a tendency towards drying and increasing irregularity of rainfall. Interestingly, we find little association between the El Niño Southern Oscillation (ENSO) and temperature or precipitation variability at our study sites. This suggests that even though ENSO is a widely recognized driver of large-scale rainfall variability in the region, its impacts are highly spatially variable. This has implications for applying ENSO-based precipitation outlooks to agricultural management decisions. Farmer interviews reveal that local perceptions of climate variability and trends are generally consistent with the objective observations.
546 _aText in English
650 7 _2AGROVOC
_95511
_aClimate change adaptation
650 7 _2AGROVOC
_95507
_aTrends
650 0 _aAnalysis
_gAGROVOC
_927824
651 7 _2AGROVOC
_92025
_aEthiopia
700 1 _913714
_aZiatchik, B.F.
700 1 _aFantaye, K.T.
_gSocioeconomics Program
_gSustainable Agrifood Systems
_8INT3458
_9956
700 1 _9427
_aBelay Simane
700 1 _913715
_aAlemayehu, G.
700 1 _913716
_aAdgo, E.
773 0 _dAmsterdam (Netherlands) : Elsevier, 2020.
_gv. 29, art. 100263
_tWeather and Climate Extremes
_x2212-0947
856 4 _yOpen Access through DSpace
_uhttps://hdl.handle.net/10883/20888
942 _2ddc
_cJA
_n0