이어도 기상 관측 자료를 활용한 장마 시작일 분석

다국어 초록 (Multilingual Abstract)

The definition of onset date of Changma is revisited in this study using a quality controlled Ieodo ocean research station data. The Ieodo station has great importance in terms of its southwest location from Korean Peninsula and, hence, makes it possible to predict Changma period in advance with less impact of continents. The onset date of Changma using the Ieodo station data is defined by the time that meridional wind direction changes and maintains from northerly to southerly, and then the zonal wind changes from easterly to westerly after first June. This definition comes from a recognition that the establishment and movement of the western North Pacific subtropical high (WNPSH) cause Changma through southwesterly flow. The onset data of Changma has been determined by large-scale dynamic-thermodynamic characteristics or various meteorological station data. However, even the definition based on circulation data at the Ieodo station has a potential for the improved prediction skill of the onset date of Changma. The differences between before and after Changma, defined as Ieodo station data, are also found in synoptic chart. The convective instability and conspicuous circulations, corresponding low-level southwesterly flow related to WNPSH and strong upper-level zonal wind, are represented during Changma.

참고문헌 (Reference)

1 하경자, "한반도 주변의 하계 강수량의 경년 변동과 이에 연관된 동아시아 순환의 특성" 한국기상학회 39 (39): 575-586, 2003

2 하경자, "하계몬순 기간중의 장마의 시작, 종료 및 세기의 정의" 한국기상학회 41 (41): 927-942, 2005

3 서경환, "장마의 재조명" 한국기상학회 21 (21): 109-121, 2011

4 하경자, "이어도 종합해양과학기지에서 관측된 난류 플럭스의 계절적 특성" 한국기상학회 17 (17): 421-433, 2007

5 손준혁, "상당온위를 사용한 동아시아 여름철 몬순의 6월 및 7월 주 변동 모드 분석" 한국기상학회 22 (22): 483-488, 2012

6 Korea Meteorological Administration, "white paper on Changma" Korea Meteorological Administration 36-42, 2011

7 Lim, J. -S., "The Moisture Transport and Budget over Korea during the 1988 Changma Period" 27 : 221-240, 1988

8 Yun, K. -S., "The 30~60 day oscillation in the East Asian summer monsoon and its time-dependent association with the ENSO" 61A : 565-578, 2009

9 Lee, S. -S., "Shift of peak in summer monsoon rainfall over Korea and its association with ENSO" 115 : D02111-, 2010

10 Kang, I. -S., "Relationship between El-Nino and Korean climate variability" 34 : 390-396, 1998

11 Yun, K. -S., "Relationship between ENSO and northward propagating intraseasonal oscillation in the East Asian summer monsoon system" 113 : D14120-, 2008

12 Oh, H. -M., "Quality control and tilt correction effects on the turbulent fluxes observed at an ocean platform" 50 : 700-712, 2011

13 Ha, K. -J., "On the interannual variability of the Bonin high associated with the East Asian summer monsoon rain" 28 : 67-83, 2007

14 Ha, K. -J., "On interannual characteristics of climate prediction center merged analysis precipitation over the Korean peninsula during the summer monsoon season" 25 : 99-116, 2005

15 Hyun-Mi Oh, "On Drag Coefficient Parameterization with Post Processed Direct Fluxes Measurements over the Ocean" 한국기상학회 46 (46): 513-523, 2010

16 Chu, J. -E., "Non-linear, intraseasonal phases of the East Asian summer monsoon:Extraction and analysis using self-organizing maps" 25 : 6975-6988, 2012

17 이순선, "Impact of the Western North Pacific Subtropical High on the East Asian Monsoon Precipitation and the Indian Ocean Precipitation in the Boreal Summertime" 한국기상학회 49 (49): 171-182, 2013

18 Oh, H. -M., "Analysis of marine meteorological characteristics at Ieodo Ocean Research Station from 2003 to 2004" 41 : 671-680, 2004

19 Stull, R. B., "An introduction to boundary layer meteorology" Kluwer academic publishers 377-386, 1988

20 Ahn, J. -B., "A study of correlations between air-temperature and precipitation in Korea and SST over the tropical pacific" 33 : 487-495, 1997

21 De Rooy, W., "A combined physical-statistical approach for the downscaling of model wind speed" 19 : 485-495, 2004