DOI: 10.1016/j.atmosres.2018.11.015
Scopus记录号: 2-s2.0-85057232397
论文题名: On the short-term simulation of heat waves in the Southeast Mediterranean: Sensitivity of the WRF model to various physics schemes
作者: Giannaros C. ; Melas D. ; Giannaros T.M.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2019
卷: 218 起始页码: 99
结束页码: 116
语种: 英语
英文关键词: Evaluation
; Heat waves
; Land surface models
; Planetary boundary layer schemes
; Sensitivity study
; WRF model
Scopus关键词: Atmospheric thermodynamics
; Boundary layers
; Climatology
; Heat flux
; Soil moisture
; Surface measurement
; Evaluation
; Heat waves
; Land surface models
; Planetary boundary layers
; Sensitivity studies
; WRF Model
; Weather forecasting
; algorithm
; boundary layer
; extreme event
; heat wave
; land surface
; latent heat flux
; parameterization
; sensible heat flux
; sensitivity analysis
; weather forecasting
; Balkans
; Mediterranean Sea
; Mediterranean Sea (Southeast)
英文摘要: The current study investigated the impact of the Weather Research and Forecasting (WRF) (a) surface layer (SL), (b) land surface and (c) planetary boundary layer (PBL) physics on the short-term simulation of the meteorological and human thermal comfort conditions during 15 heat waves identified between 2004 and 2013 in the southeast Mediterranean and Balkan Peninsula. Four widely used PBL-SL schemes (YSU-MM5, MYJ-Eta, ACM2-Revised MM5, YSU-Revised MM5) and land surface models (LSMs; Noah, Noah-MP, CLM4, RUC) were tested. Comparisons with ground-based observations in 60 measuring sites showed that the WRF model is characterized by a cold bias leading to the underestimation of the extreme heat stress conditions over the entire study region. The MYJ-Eta experiment simulated greater sensible heat fluxes compared to the other PBL-SL scenarios due to the high surface heat exchange coefficient provided by the Eta SL scheme. This contributed to the high MYJ-Eta-modeled daytime 2-m air temperature (T2) and physiologically equivalent temperature (PET) values that were close to the observations. The ACM2 PBL algorithm produced significantly higher PBL heights compared to rest of the tested PBL parameterizations reflecting the strong vertical mixing generated in this scheme. This contributed to the most accurate ACM2-Revised MM5-modeled T2 and PET results in overall. The use of the RUC LSM strengthened significantly the modeled sensible heat fluxes contributing directly to the satisfactory replication of the observed T2 and PET values. However, the RUC-induced enhanced sensible heating relative to the latent heating is may related to a possible underestimation of the soil moisture, as indicated by the notable dry biases during the RUC experiment. Thus, the most accurate T2 and PET results provided by the RUC model may arise from the wrong reason. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122350
Appears in Collections: 气候变化事实与影响
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作者单位: Laboratory of Atmospheric Physics, Aristotle University of Thessaloniki, PO Box 149, Thessaloniki, 54124, Greece; National Observatory of Athens, Institute for Environmental Research and Sustainable Development, Vas. Pavlou & I. Metaxa, Penteli, 15236, Greece
Recommended Citation:
Giannaros C.,Melas D.,Giannaros T.M.. On the short-term simulation of heat waves in the Southeast Mediterranean: Sensitivity of the WRF model to various physics schemes[J]. Atmospheric Research,2019-01-01,218