NDLI: Changma onset definition in Korea using the available water resources index and its relation to the Antarctic oscillation

Content Provider	Springer Nature Link
Author	Choi, Ki Seon Wang, Bin Kim, Do Woo
Copyright Year	2010
Abstract	This study defines the Changma onset using the available water resources index (AWRI) for 25 years (1985–2009) and verifies the validity of this definition. The three conditions for defining the Changma onset are established as follows: (i) The first day exceeding the June AWRI (threshold) averaged over the 25-year period. (ii) The continuation of the value over the threshold for at least 1 week after the onset. (iii) After the continuation of more than 1 week, the non-continuation of the value under the threshold for at least 1 week. The 25-year average Changma onset date is 24 June with a standard deviation of 9 days. The defined Changma onset is verified through the analysis on the relationship with the Antarctic oscillation (AAO). AAO in June shows a high correlation with not only the Changma onset but also the June precipitation (AWRI) in Korea. These three variables are influenced by Mascarene and Australian (positive AAO pattern) highs from in the preceding March. When these two pressure systems develop, the cold cross-equatorial flow in the direction from the region around Australia to the equator is intensified, which in turn, forces a western North Pacific high (WNPH) to develop northward; this eventually drives the rain belt north. As a result, the Changma begins early in the positive AAO phase, and the June precipitation increases in Korea. In addition, a WNPH that develops more northward increases the landfalling frequency of tropical cyclones in Korea, which plays an important role in increasing the June precipitation.
Starting Page	547
Ending Page	562
Page Count	16
File Format	PDF
ISSN	09307575
Journal	Climate Dynamics
Volume Number	38
Issue Number	3-4
e-ISSN	14320894
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-12-19
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Available water resources index Antarctic oscillation Changma Mascarene high Australian high Tropical cyclone Meteorology/Climatology Oceanography Geophysics/Geodesy
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Changma onset definition in Korea using the available water resources index and its relation to the Antarctic oscillation

The Intra-Seasonal Oscillation and its control of tropical cyclones simulated by high-resolution global atmospheric models

Bimodal representation of the tropical intraseasonal oscillation

How is the Indian Ocean Subtropical Dipole excited?

Possible connection between summer tropical cyclone frequency and spring Arctic Oscillation over East Asia

Associations with the interannual variations of onset and withdrawal of the Changma

Interannual variability of the South Pacific Convergence Zone and implications for tropical cyclone genesis

Strong modulations on the Bay of Bengal monsoon onset vortex by the first northward-propagating intra-seasonal oscillation

Influence of the Mascarene high and Australian high on the summer monsoon in East Asia: Ensemble simulation

Changma onset definition in Korea using the available water resources index and its relation to the Antarctic oscillation

Similar Documents

Changma onset definition in Korea using the available water resources index and its relation to the Antarctic oscillation

The Intra-Seasonal Oscillation and its control of tropical cyclones simulated by high-resolution global atmospheric models

Bimodal representation of the tropical intraseasonal oscillation

How is the Indian Ocean Subtropical Dipole excited?

Possible connection between summer tropical cyclone frequency and spring Arctic Oscillation over East Asia

Associations with the interannual variations of onset and withdrawal of the Changma

Interannual variability of the South Pacific Convergence Zone and implications for tropical cyclone genesis

Strong modulations on the Bay of Bengal monsoon onset vortex by the first northward-propagating intra-seasonal oscillation

Influence of the Mascarene high and Australian high on the summer monsoon in East Asia: Ensemble simulation

Changma onset definition in Korea using the available water resources index and its relation to the Antarctic oscillation