DOI: 10.5194/hess-20-3393-2016
Scopus记录号: 2-s2.0-84983751870
论文题名: Recent changes and drivers of the atmospheric evaporative demand in the Canary Islands
作者: Vicente-Serrano S ; M ; , Azorin-Molina C ; , Sanchez-Lorenzo A ; , El Kenawy A ; , Martín-Hernández N ; , Peña-Gallardo M ; , Beguería S ; , Tomas-Burguera M
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2016
卷: 20, 期: 8 起始页码: 3393
结束页码: 3410
语种: 英语
Scopus关键词: Aerodynamics
; Available energy
; Canary islands
; Decadal variability
; Evaporative demands
; High quality
; Meteorological factors
; Meteorological variables
; Penman-Monteith equations
; Atmospheric humidity
; aerodynamics
; decadal variation
; evaporation
; evapotranspiration
; moisture content
; radiative forcing
; relative humidity
; time series
; water vapor
; Canary Islands
; Spain
英文摘要: We analysed recent evolution and meteorological drivers of the atmospheric evaporative demand (AED) in the Canary Islands for the period 1961-2013. We employed long and high-quality time series of meteorological variables to analyse current AED changes in this region and found that AED has increased during the investigated period. Overall, the annual ETo, which was estimated by means of the FAO-56 Penman-Monteith equation, increased significantly by 18.2 mm decade-1 on average, with a stronger trend in summer (6.7 mm decade-1). In this study we analysed the contribution of (i) the aerodynamic (related to the water vapour that a parcel of air can store) and (ii) radiative (related to the available energy to evaporate a quantity of water) components to the decadal variability and trends of ETo. More than 90 % of the observed ETo variability at the seasonal and annual scales can be associated with the variability in the aerodynamic component. The variable that recorded more significant changes in the Canary Islands was relative humidity, and among the different meteorological factors used to calculate ETo, relative humidity was the main driver of the observed ETo trends. The observed trend could have negative consequences in a number of water-depending sectors if it continues in the future. © 2016 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78756
Appears in Collections: 气候变化事实与影响
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作者单位: Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (IPE-CSIC), Zaragoza, Spain; Department of Geography, Mansoura University, Mansoura, Egypt; Estación Experimental Aula Dei, Consejo Superior de Investigaciones Científicas (EEAD-CSIC), Zaragoza, Spain
Recommended Citation:
Vicente-Serrano S,M,, Azorin-Molina C,et al. Recent changes and drivers of the atmospheric evaporative demand in the Canary Islands[J]. Hydrology and Earth System Sciences,2016-01-01,20(8)