Linearity of Outgoing Longwave Radiation: From an Atmospheric Column to Global Climate Models
Author(s): Zhang, Yi; Jeevanjee, Nadir; Fueglistaler, Stephan
DownloadTo refer to this page use:
http://arks.princeton.edu/ark:/88435/pr1445hb9w
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhang, Yi | - |
dc.contributor.author | Jeevanjee, Nadir | - |
dc.contributor.author | Fueglistaler, Stephan | - |
dc.date.accessioned | 2022-01-25T14:59:25Z | - |
dc.date.available | 2022-01-25T14:59:25Z | - |
dc.date.issued | 2020-08-25 | en_US |
dc.identifier.citation | Zhang, Yi, Nadir Jeevanjee, and Stephan Fueglistaler. "Linearity of outgoing longwave radiation: From an atmospheric column to global climate models." Geophysical Research Letters 47, no. 17 (2020). doi:10.1029/2020GL089235. | en_US |
dc.identifier.issn | 0094-8276 | - |
dc.identifier.uri | http://arks.princeton.edu/ark:/88435/pr1445hb9w | - |
dc.description.abstract | The linearity of global‐mean outgoing longwave radiation (OLR) with surface temperature is a basic assumption in climate dynamics. This linearity manifests in global climate models, which robustly produce a global‐mean longwave clear‐sky (LWCS) feedback of 1.9 W/m2/K, consistent with idealized single‐column models (Koll & Cronin, 2018, https//:doi.org/10.1073/pnas.1809868115). However, there is considerable spatial variability in the LWCS feedback, including negative values over tropical oceans (known as the “super‐greenhouse effect”) which are compensated for by larger values in the subtropics/extratropics. Therefore, it is unclear how the idealized single‐column results are relevant for the global‐mean LWCS feedback in comprehensive climate models. Here we show with a simple analytical theory and model output that the compensation of this spatial variability to produce a robust global‐mean feedback can be explained by two facts: (1) When conditioned upon free‐tropospheric column relative humidity (RH), the LWCS feedback is independent of RH, and (2) the global histogram of free‐tropospheric column RH is largely invariant under warming. | en_US |
dc.language.iso | en_US | en_US |
dc.relation.ispartof | Geophysical Research Letters | en_US |
dc.rights | Final published version. Article is made available in OAR by the publisher's permission or policy. | en_US |
dc.title | Linearity of Outgoing Longwave Radiation: From an Atmospheric Column to Global Climate Models | en_US |
dc.type | Journal Article | en_US |
dc.identifier.doi | doi:10.1029/2020GL089235 | - |
dc.identifier.eissn | 1944-8007 | - |
pu.type.symplectic | http://www.symplectic.co.uk/publications/atom-terms/1.0/journal-article | en_US |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Linearity_Outgoing_Longwave_Radiation_From_Atmospheric_Column_Global_Climate_Models.pdf | 4.14 MB | Adobe PDF | View/Download |
Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.