Reverse relationship between drought of mid-latitudes in East Asia and Northwest Pacific tropical cyclone genesis frequency in summer

被引：2

作者：

Choi J.-W. ^{[1
]}

Cha Y. ^{[1
]}

Kim J.-Y. ^{[1
]}

机构：

[1] National Institute of Meteorological Sciences, 33, Seohobuk-ro, Seogwipo, 63568, Jeju

来源：

Geoscience Letters | / 3卷 / 1期

关键词：

Effective drought index; Secondary circulation; Tropical cyclone frequency;

D O I：

10.1186/s40562-016-0061-4

中图分类号：

学科分类号：

摘要：

This study found that there is a significant negative correlation between summer drought in Korea, China and Japan and the frequency of tropical cyclone (TC) in the subtropical western North Pacific (SWNP) using effective drought index (EDI). The frequency of TCs that affect Korea is low (high) in a year of summer drought (non-drought). As a case study, in 1994 when there is extremely severe summer drought in Korea, there was high frequency of TCs while in 2003 when there was least severe summer drought, the frequency of TCs is the lowest. Changes in the anomalous secondary circulation, namely anomalous upward (downward) flow in the SWNP and anomalous downward (upward) flow in the mid-latitudes of East Asia, are one of the causes of drought (non-drought). © 2016, The Author(s).

引用

共 24 条

[1]

Akhtari R., Morid S., Mahdian M.H., Smakhin V., Assessment of areal interpolation methods for spatial analysis of SPI and EDI drought indices, Int J Climatol, 29, pp. 135-145, (2009)

[2]

Byun H.R., Lee D.K., Defining three rainy seasons and the hydrological summer monsoon in Korea using available water resources index, J Meteor Soc Japan, 80, pp. 33-44, (2002)

[3]

Byun H.R., Wilhite D.A., Objective quantification of drought severity and duration, J Clim, 12, pp. 2747-2756, (1999)

[4]

Chen T.C., Wang S.Y., Yen M.C., Gallus W.A., Role of the monsoon gyre in the interannual variation of tropical cyclone formation over the western North Pacific, Weather Forecast, 19, pp. 776-785, (2004)

[5]

Chia H.H., Ropelewski C.F., The interannual variability in the genesis location of tropical cyclones in the Northwest Pacific, J Clim, 15, pp. 2934-2944, (2002)

[6]

Choi K.S., Wu C.C., Cha E.J., Change of tropical cyclone activity by Pacific-Japan teleconnection pattern in the western North Pacific, J Geophys Res, 115, (2010)

[7]

Guan Z., Yamagata T., The unusual summer of 1994 in East Asia: IOD teleconnections, Geophys Res Lett, 30, pp. 1544-1547, (2003)

[8]

Jin R.H., Jiao M.Y., Xu J., Qui H.F., Characteristics and cause analysis of Western Pacific subtropical high with the Huaihe River floods in 2003, Second Korea-Japan-China Joint Conference on Meteorology, (2006)

[9]

Kim Y.W., Byun H.R., On the causes of summer droughts in Korea and their return to normal, Asia-Pac J Atmos Sci, 42, pp. 237-251, (2006)

[10]

Kim K.O., Park C.K., Ahn J.N., Characteristics of atmospheric circulation over East Asia and unusual climate of Korea in summer 2003, Asia-Pac J Atmos Sci, 41, pp. 519-532, (2005)

← 1 2 3 →