DOI: 10.1002/jgrd.50803
论文题名: A physically based analytical spatial air temperature and humidity model
作者: Yang Y. ; Endreny T.A. ; Nowak D.J.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 18 起始页码: 10449
结束页码: 10463
语种: 英语
英文关键词: absolute humidity
; Air temperature
; latent heat
; microclimate
; sensible heat
; spatial variation
Scopus关键词: Analytical models
; Atmospheric temperature
; Climate models
; Heat flux
; Heat storage
; Latent heat
; Meteorology
; Solar radiation
; Sun
; Topography
; Urban growth
; Water supply
; Absolute humidity
; Air temperature
; microclimate
; Sensible heat
; Spatial variations
; Atmospheric humidity
; climate modeling
; climate variation
; data acquisition
; dew point
; empirical analysis
; humidity
; land cover
; latent heat flux
; solar radiation
; spatial variation
; time series
; urban area
; New York [United States]
; Syracuse
; United States
英文摘要: Spatial variation of urban surface air temperature and humidity influences human thermal comfort, the settling rate of atmospheric pollutants, and plant physiology and growth. Given the lack of observations, we developed a Physically based Analytical Spatial Air Temperature and Humidity (PASATH) model. The PASATH model calculates spatial solar radiation and heat storage based on semiempirical functions and generates spatially distributed estimates based on inputs of topography, land cover, and the weather data measured at a reference site. The model assumes that for all grids under the same mesoscale climate, grid air temperature and humidity are modified by local variation in absorbed solar radiation and the partitioning of sensible and latent heat. The model uses a reference grid site for time series meteorological data and the air temperature and humidity of any other grid can be obtained by solving the heat flux network equations. PASATH was coupled with the USDA iTree-Hydro water balance model to obtain evapotranspiration terms and run from 20 to 29 August 2010 at a 360 m by 360 m grid scale and hourly time step across a 285 km 2 watershed including the urban area of Syracuse, NY. PASATH predictions were tested at nine urban weather stations representing variability in urban topography and land cover. The PASATH model predictive efficiency R2 ranged from 0.81 to 0.99 for air temperature and 0.77 to 0.97 for dew point temperature. PASATH is expected to have broad applications on environmental and ecological models. Key Points Present a physically-based analytical spatial air temperature model.Incoporate the impact of topography and land cover on local climate.The model has been proven efficient. ©2013. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63302
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Environmental Resources Engineering, SUNY ESF, Syracuse, NY, United States; USDA Forest Service Northern Research Station, Syracuse, NY, United States
Recommended Citation:
Yang Y.,Endreny T.A.,Nowak D.J.. A physically based analytical spatial air temperature and humidity model[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(18)