Joint Dependence of Longwave Feedback on Surface Temperature and Relative Humidity

McKim, Brett A.; Jeevanjee, Nadir; Vallis, Geoffrey K.

doi:10.1029/2021gl094074

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Joint Dependence of Longwave Feedback on Surface Temperature and Relative Humidity

2021
By McKim, Brett A. ; Jeevanjee, Nadir ; Vallis, Geoffrey K.
Source: Geophysical Research Letters, 48(18)

[PDF-1.40 MB]

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Details:

Journal Title:

Geophysical Research Letters
Personal Author:

McKim, Brett A. ; Jeevanjee, Nadir ; Vallis, Geoffrey K.

McKim, Brett A. ; Jeevanjee, Nadir ; Vallis, Geoffrey K. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; GFDL (Geophysical Fluid Dynamics Laboratory)

OAR (Oceanic and Atmospheric Research) ; GFDL (Geophysical Fluid Dynamics Laboratory) Less -
Description:

Various studies have suggested that Earth's clear-sky outgoing longwave radiation (OLR) varies linearly with surface temperature, with a longwave clear-sky feedback that is, independent of surface temperature and relative humidity. However, this uniformity conflicts with the notion that humidity controls tropical stability (e.g., the “furnace” and “radiator fins” of Pierrehumbert (1995, https:// doi.org/10.1175/1520-0469(1995)052%3C1784:TRFATL%3E2.0.CO;2 )). Here, we use a column model to explore the dependence of longwave clear-sky feedback on both surface temperature and relative humidity. We find that a strong humidity dependence in the feedback emerges above 275 K, which stems
Keywords:

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General Earth And Planetary Sciences Geophysics
Source:

Geophysical Research Letters, 48(18)
DOI:

https://doi.org/10.1029/2021gl094074
ISSN:

0094-8276;1944-8007;
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
License:

https://creativecommons.org/licenses/by/4.0/
Rights Information:

CC BY
Compliance:

Library
Main Document Checksum:

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urn:sha256:9772db343ec32f9a45532082888c38318ce2776e69c79fb8ee833113f6cc2d63
Download URL:

https://repository.library.noaa.gov/view/noaa/54061/noaa_54061_DS1.pdf
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