Meridional Heat Transport During Atmospheric Rivers in High‐Resolution CESM Climate Projections

Shields, Christine A.; Rosenbloom, Nan; Bates, Susan; Hannay, Cecile; Hu, Aixue; Payne, Ashley E.; Rutz, Jonathan J.; Truesdale, John

doi:10.1029/2019gl085565

i

Meridional Heat Transport During Atmospheric Rivers in High‐Resolution CESM Climate Projections

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2019
By Shields, Christine A. ; Rosenbloom, Nan ; Bates, Susan ; ...

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Journal Title:

Geophysical Research Letters
Personal Author:

Shields, Christine A. ; Rosenbloom, Nan ; Bates, Susan ; Hannay, Cecile ; Hu, Aixue ; Payne, Ashley E. ; Rutz, Jonathan J. ; Truesdale, John
NOAA Program & Office:

NOAA General Documents
Description:

Meridional sensible and latent heat transport is evaluated for regions with landfalling atmospheric rivers using both MERRA‐2 reanalysis and fully coupled CESM1.3 high‐resolution climate projections. Western North America, the United Kingdom, and the Iberian Peninsula are chosen to represent the regions significantly impacted by atmospheric rivers (ARs). CESM1.3 historical simulations can accurately represent both sensible and latent regional meridional heat transports compared to MERRA‐2 both for the total period analyzed (1980–2016) and for days with atmospheric rivers only. Uncertainty in these calculations due to AR identification is assessed by applying available Tier 1 AR‐catalogs from Atmospheric Tracking Method Intercomparison Project (ARTMIP) to the MERRA‐2 analysis. CESM1.3 climate projections suggest that under global warming, latent heat transport increases across all regions in the mid‐latitudes where sensible heat decreases (increases) for western North America (Europe). Generally, changes to the meridional heat transport are forced by the upper‐level meridional wind component.
Keywords:

General Earth And Planetary Sciences Geophysics General Earth And Planetary Sciences General Earth And Planetary Sciences
Source:

Geophysical Research Letters, 46(24), 14702-14712
DOI:

https://doi.org/10.1029/2019gl085565
ISSN:

0094-8276 ; 1944-8007
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PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
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urn:sha256:2b85a4a1d05adc858efd388214aec013c9963aeb2a8ada2c7fc4005b3e8fb803
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https://repository.library.noaa.gov/view/noaa/59802/noaa_59802_DS1.pdf
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[PDF - 18.15 MB ]

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