TY - JOUR
T1 - Significant Impact of Heat Supply From the Gulf Stream on a “Superbomb” Cyclone in January 2018
AU - Hirata, Hidetaka
AU - Kawamura, Ryuichi
AU - Nonaka, Masami
AU - Tsuboki, Kazuhisa
N1 - Funding Information:
The authors thank Editor Suzana Camargo and the two anonymous reviewers for their very helpful comments. The CReSS model was developed by Nagoya University (http://www.isee.nagoya‐u.ac.jp/en/co‐ re.html). The ERA‐interim reanalysis data were obtained from the ECMWF (https://apps.ecmwf.int/datasets/). The GSM data are available at the Web site of the Research Institute for Sustainable Humanosphere, Kyoto University (http://database.rish.kyoto‐u.ac.jp/ index‐e.html). The NOAA provided the OISST (https://www.ncdc.noaa.gov/ oisst) and CFSv2 (https://www.ncdc. noaa.gov/data‐access/model‐data/ model‐datasets/climate‐forecast‐ system‐version2‐cfsv2). The GPM‐GMI data can be downloaded from the JAXA G‐Portal (https://gportal.jaxa.jp/gpr/? lang=en). The WindSat data, which are produced by Remote Sensing Systems and sponsored by the NASA Earth Science MEaSUREs DISCOVER Project and the NASA Earth Science Physical Oceanography Program, are available at www.remss.com. The numerical experiments were performed using the Earth Simulator of Japan Agency for Marine‐Earth Science and Technology (JAMSTEC). This work was supported by JSPS KAKENHI JP17J04041 and JP16H01846.
Funding Information:
The authors thank Editor Suzana Camargo and the two anonymous reviewers for their very helpful comments. The CReSS model was developed by Nagoya University (http://www.isee.nagoya-u.ac.jp/en/co-re.html). The ERA-interim reanalysis data were obtained from the ECMWF (https://apps.ecmwf.int/datasets/). The GSM data are available at the Web site of the Research Institute for Sustainable Humanosphere, Kyoto University (http://database.rish.kyoto-u.ac.jp/index-e.html). The NOAA provided the OISST (https://www.ncdc.noaa.gov/oisst) and CFSv2 (https://www.ncdc.noaa.gov/data-access/model-data/model-datasets/climate-forecast-system-version2-cfsv2). The GPM-GMI data can be downloaded from the JAXA G-Portal (https://gportal.jaxa.jp/gpr/?lang=en). The WindSat data, which are produced by Remote Sensing Systems and sponsored by the NASA Earth Science MEaSUREs DISCOVER Project and the NASA Earth Science Physical Oceanography Program, are available at www.remss.com. The numerical experiments were performed using the Earth Simulator of Japan Agency for Marine-Earth Science and Technology (JAMSTEC). This work was supported by JSPS KAKENHI JP17J04041 and JP16H01846.
Publisher Copyright:
©2019. The Authors.
PY - 2019/7/16
Y1 - 2019/7/16
N2 - On 4 January 2018, an extremely rapidly developing extratropical cyclone (“superbomb” cyclone) appeared over the Gulf Stream. To clarify the key process of the intensification of the superbomb cyclone, we specifically examined the role of heat supply from the Gulf Stream by performing cloud-resolving numerical experiments. When the cyclone rapidly developed, sensible and latent heat fluxes from the warm current predominated around the cold conveyor belt (CCB) of the cyclone. These fluxes created a convectively unstable layer near the surface. When the instability was released around the cyclone center, latent heating (LH) occurred. The increased LH further intensified the cyclone and its associated CCB. These findings indicate that the positive feedback process between the CCB and LH played a key role in intensification over the Gulf Stream. In this way, the heat supply from the Gulf Stream significantly impacted the development of the superbomb cyclone.
AB - On 4 January 2018, an extremely rapidly developing extratropical cyclone (“superbomb” cyclone) appeared over the Gulf Stream. To clarify the key process of the intensification of the superbomb cyclone, we specifically examined the role of heat supply from the Gulf Stream by performing cloud-resolving numerical experiments. When the cyclone rapidly developed, sensible and latent heat fluxes from the warm current predominated around the cold conveyor belt (CCB) of the cyclone. These fluxes created a convectively unstable layer near the surface. When the instability was released around the cyclone center, latent heating (LH) occurred. The increased LH further intensified the cyclone and its associated CCB. These findings indicate that the positive feedback process between the CCB and LH played a key role in intensification over the Gulf Stream. In this way, the heat supply from the Gulf Stream significantly impacted the development of the superbomb cyclone.
UR - http://www.scopus.com/inward/record.url?scp=85068383544&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85068383544&partnerID=8YFLogxK
U2 - 10.1029/2019GL082995
DO - 10.1029/2019GL082995
M3 - Article
AN - SCOPUS:85068383544
SN - 0094-8276
VL - 46
SP - 7718
EP - 7725
JO - Geophysical Research Letters
JF - Geophysical Research Letters
IS - 13
ER -