Details:

Journal Title:
Journal of Climate
Personal Author:
Ma, Xiaohui ; Chang, Ping ; Saravanan, R. ; Montuoro, Raffaele ; Nakamura, Hisashi ; ... More +
Ma, Xiaohui ; Chang, Ping ; Saravanan, R. ; Montuoro, Raffaele ; Nakamura, Hisashi ; Wu, Dexing ; Lin, Xiaopei ; Wu, Lixin Less -
Corporate Authors:
United States. National Oceanic and Atmospheric Administration. Office of Oceanic and Atmospheric Research ; Modeling, Analysis, Predictions, and Projections Program (U.S.)
United States. National Oceanic and Atmospheric Administration. Office of Oceanic and Atmospheric Research ; Modeling, Analysis, Predictions, and Projections Program (U.S.) Less -
NOAA Program & Office:
OAR (Oceanic and Atmospheric Research) ; CPO (Climate Program Office)
OAR (Oceanic and Atmospheric Research) ; CPO (Climate Program Office) Less -
Description:
Local and remote atmospheric responses to mesoscale SST anomalies associated with the oceanic front and eddies in the Kuroshio Extension region (KER) are studied using high- (27 km) and low-resolution (162 km) regional climate model simulations in the North Pacific. In the high-resolution simulations, removal of mesoscale SST anomalies in the KER leads to not only a local reduction in cyclogenesis but also a remote large-scale equivalent barotropic response with a southward shift of the downstream storm track and jet stream in the eastern North Pacific. In the low-resolution simulations, no such significant remote response is found when mesoscale SST anomalies are removed. The difference between the high- and low-resolution model simulated atmospheric responses is attributed to the effect of mesoscale SST variability on cyclogenesis through moist baroclinic instability. It is only when the model has sufficient resolution to resolve small-scale diabatic heating that the full effect of mesoscale SST forcing on the storm track can be correctly simulated.
Keywords:
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Cyclones—Tropics Ocean-atmosphere Interaction Storms Tracks Extratropical Cyclones Mesoscale Processes Storm Tracks
Source:
Journal of Climate, 30(5), 1861-1880.
DOI:
https://doi.org/10.1175/JCLI-D-16-0154.1
Document Type:
Journal Article
Funding:
Grant no. NA16OAR4310082 ; Grant no. NA11OAR4310154
Grant no. NA16OAR4310082 ; Grant no. NA11OAR4310154 Less -
Rights Information:
Other
Compliance:
Submitted
Main Document Checksum:
[+]
urn:sha256:07e0aa8b736df72a5340022d5b48fb9240d3424492c13cf5567023dda2db30ca
Download URL:
https://repository.library.noaa.gov/view/noaa/28387/noaa_28387_DS1.pdf
File Type:

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