| DOI: | 10.1175/JCLI-D-11-00119.1
|
| Scopus记录号: | 2-s2.0-84867686164
|
| 论文题名: | Adjustment to radiative forcing in a simple coupled ocean-atmosphere model |
| 作者: | Miller R.L.
|
| 刊名: | Journal of Climate
|
| ISSN: | 8948755
|
| 出版年: | 2012
|
| 卷: | 25, 期:22 | | 起始页码: | 7802
|
| 结束页码: | 7821
|
| 语种: | 英语
|
| Scopus关键词: | Aerosol layers
; Aerosol radiative forcing
; Air sea interactions
; Atmosphere-ocean interactions
; Dust aerosols
; Heat exchange
; Lateral mixing
; Mixed layer
; Model assumptions
; Ocean response
; Ocean temperature
; Ocean-atmosphere models
; Primary control
; Radiative forcings
; Surface flux
; Surface forcing
; Surface heating
; Top of the atmospheres
; Tropical cyclone
; Aerosols
; Atmospheric radiation
; Atmospheric thermodynamics
; Dust
; Oceanography
; Range finding
; Atmospheric temperature
; aerosol
; air-sea interaction
; atmosphere-ocean coupling
; heat transfer
; hurricane
; radiative forcing
; surface flux
; top of atmosphere
; typhoon
|
| 英文摘要: | This study calculates the adjustment to radiative forcing in a simple model of a mixed layer ocean coupled to the overlying atmosphere. One application of the model is to calculate how dust aerosols perturb the temperature of the atmosphere and ocean, which in turn influence tropical cyclone development. Forcing at the top of the atmosphere (TOA) is the primary control upon both the atmospheric and ocean temperature anomalies, both at equilibrium and during most of the adjustment to the forcing. Ocean temperature is directly influenced by forcing only at the surface, but is indirectly related to forcing at TOA due to heat exchange with the atmosphere. Within a few days of the forcing onset, the atmospheric temperature adjusts to heating within the aerosol layer, reducing the net transfer of heat from the ocean to the atmosphere. For realistic levels of aerosol radiative forcing, the perturbed net surface heating strongly opposes forcing at the surface. This means that surface forcing dominates the ocean response only within the first few days following a dust outbreak, before the atmosphere has responded. This suggests that, to calculate the effect of dust upon the ocean temperature, the atmospheric adjustment must be taken into account explicitly and forcing at TOA must be considered in addition to the surface forcing. The importance of TOA forcing should be investigated in a model where vertical and lateral mixing of heat are calculated with fewer assumptions than in the simple model presented here. Nonetheless, the fundamental influence of TOA forcing appears to be only weakly sensitive to the model assumptions. © 2012 American Meteorological Society. |
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/52161
|
| Appears in Collections: | 气候变化事实与影响
|
|
There are no files associated with this item.
|
|
作者单位: | NASA Goddard Institute for Space Studies, Department of Applied Physics and Applied Math, Columbia University, New York, NY, United States
|
| Recommended Citation: | |
Miller R.L.. Adjustment to radiative forcing in a simple coupled ocean-atmosphere model[J]. Journal of Climate,2012-01-01,25(22)
|
|
|