Climate Change Suppresses Santa Ana Winds of Southern California and Sharpens Their Seasonality

Guzman‐Morales, Janin; Gershunov, Alexander

doi:10.1029/2018gl080261

i

Climate Change Suppresses Santa Ana Winds of Southern California and Sharpens Their Seasonality

Supporting Files

2019
By Guzman‐Morales, Janin ; Gershunov, Alexander

Details

Journal Title:

Geophysical Research Letters
Personal Author:

Guzman‐Morales, Janin ; Gershunov, Alexander
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research)
Description:

We downscale Santa Ana winds (SAWs) from eight global climate models (GCMs) and validate key aspects of their climatology over the historical period. We then assess SAW evolution and behavior through the 21st century, paying special attention to changes in their extreme occurrences. All GCMs project decreases in SAW activity, starting in the early 21st century, which are commensurate with decreases in the southwestward pressure gradient force that drives these winds. The trend is most pronounced in the early and late SAW season: fall and spring. It is mainly determined by changes in the frequency of SAW events, less so by changes in their intensity. The peak of the SAW season (November–December–January) is least affected by anthropogenic climate change in GCM projections.
Keywords:

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

Geophysical Research Letters, 46(5), 2772-2780
DOI:

https://doi.org/10.1029/2018gl080261
ISSN:

0094-8276 ; 1944-8007
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
Funding:

Grant no. NA11OAR43101
Rights Information:

Other
Compliance:

Library
Main Document Checksum:

urn:sha256:6d3b59cd9c52a09f93d4d50d9ea52603a7de43384147883dadc6f03e8c773e01
Download URL:

https://repository.library.noaa.gov/view/noaa/59680/noaa_59680_DS1.pdf
File Type:

[PDF - 1.93 MB ]

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