DOI: 10.1002/jgrd.50243
论文题名: Modeled rapid adjustments in diurnal temperature range response to CO <inf>2</inf> and solar forcings
作者: Jackson L.S. ; Forster P.M.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 5 起始页码: 2229
结束页码: 2240
语种: 英语
英文关键词: diurnal temperature range
; feedback
; forcing
; rapid adjustments
; single column modeling
Scopus关键词: Climatology
; Feedback
; Column modeling
; Diurnal temperature ranges
; forcing
; Geographic variation
; National center for atmospheric researches
; rapid adjustments
; Sensible and latent heat fluxes
; Surface energy fluxes
; Carbon dioxide
; atmospheric modeling
; carbon dioxide
; climate feedback
; climate forcing
; climate modeling
; diurnal variation
; geographical variation
; heat flux
; longwave radiation
; solar radiation
; surface flux
; temperature profile
英文摘要: We used the National Center for Atmospheric Research single column climate model to determine if rapid adjustments to surface heat fluxes contribute to a change in skin surface or surface air diurnal temperature range (DTR) under 2 × CO2 and -2% solar forcings. An ensemble of model runs was employed with locations selected to represent a range of different climatic conditions and with forcing implemented hourly throughout the diurnal cycle. The change in skin surface DTR and surface energy fluxes during the 3 days after forcing were used to quantify the rapid adjustment response and temperature related feedback. Averaged over all locations, skin surface DTR reduced by 0.01°C after CO2 forcing and included a rapid adjustment to skin surface DTR of -0.12°C. Skin surface DTR reduced by 0.17°C after solar forcing and included a rapid adjustment of -0.01°C. The rapid adjustments in skin surface DTR were associated with rapid adjustments in surface sensible and latent heat fluxes necessary to balance the energy budget immediately after forcing. We find that the sensitivity of skin surface DTR to mean temperature related feedback is the same for CO2 and solar forcings when skin surface DTR rapid adjustments are allowed for. Rapid adjustments played a key role in the geographic variation of the skin surface DTR response to forcing. Our results suggest that diurnal variations in trends of downwelling longwave radiation and rapid reductions in DTR associated with CO2 forcing potentially contributed to the observed global trend in surface air DTR. © 2013. 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/63878
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
There are no files associated with this item.
作者单位: School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom
Recommended Citation:
Jackson L.S.,Forster P.M.. Modeled rapid adjustments in diurnal temperature range response to CO <inf>2</inf> and solar forcings[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(5)