DOI: 10.1002/2017JD027511
Scopus记录号: 2-s2.0-85040727168
论文题名: Moisture Balance Over the Iberian Peninsula According to a Regional Climate Model: The Impact of 3DVAR Data Assimilation
作者: González-Rojí S.J. ; Sáenz J. ; Ibarra-Berastegi G. ; DíazdeArgandoña J.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 2 起始页码: 708
结束页码: 729
语种: 英语
英文关键词: 3DVAR data assimilation
; dynamical downscaling
; Iberian Peninsula
; moisture balance
; regional climate modeling
; WRF
Scopus关键词: climate forcing
; climate modeling
; data assimilation
; data set
; downscaling
; evaporation
; hydrological cycle
; MODIS
; moisture
; moisture flux
; numerical method
; parameterization
; precipitable water
; precipitation (climatology)
; radiosonde
; regional climate
; seasonal variation
; water budget
; weather forecasting
; Iberian Peninsula
; Mediterranean Region
英文摘要: An analysis of the atmospheric branch of the hydrological cycle by means of a 15 km resolution numerical integration performed using Weather Research and Forecasting (WRF) nested in ERA Interim is presented. Two WRF experiments covering the period 2010–2014 were prepared. The first one (N) was configured as in standard numerical downscaling experiments. The second one (D), with the same parameterizations, included a step of 3DVAR data assimilation every 6 h. Apart from comparing our results with ERA Interim data, several observational data sets were used to validate the precipitable water (radiosondes and MODIS data), precipitation (EOBS, ECA&D, TRMM, and GPCP), or evaporation (GLEAM). The verification results showed that the D experiment systematically performs better than N and in many instances, too, better than the forcing reanalysis. According to the results, the leading terms of the water balance are the tendency of the precipitable water, the divergence of moisture flux, evaporation, and precipitation. No spatial patterns were recognizable for the annual accumulated evaporation, but the effect of the Atlantic fronts was detected in the precipitation patterns. The transboundary moisture fluxes through the contour of the Iberian Peninsula behave differently depending on the season during 2010–2014. During winter, they show a net moisture import through the boundaries. During spring, summer, or autumn moisture is exported specially through the Mediterranean coast, and only during midday, this feature is reversed due to sea breezes. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114636
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Applied Physics II Department, University of the Basque Country UPV/EHU, Leioa, Spain; Joint Research Unit BEGIK, Spanish Oceanographic Institute-University of the Basque Country, Plentziako Itsas Estazioa, University of the Basque Country UPV/EHU, Plentzia, Spain; Fluid Mechanics and N.I. Department, University of the Basque Country UPV/EHU, Bilbao, Spain; Applied Physics I Department, University of the Basque Country UPV/EHU, Vitoria-Gazteiz, Spain
Recommended Citation:
González-Rojí S.J.,Sáenz J.,Ibarra-Berastegi G.,et al. Moisture Balance Over the Iberian Peninsula According to a Regional Climate Model: The Impact of 3DVAR Data Assimilation[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(2)