nmnmty?- &i?^ H46^t 2005^3^ · 10 s 8 7 6 3 2 1 0 METEOROLOGICAL SATELLITE CENTER TECHNICAL NOTE...
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nmnmty?- &i?^ H46^t 2005^3^ Characteristics of the Developmental Sequence of Typhoons in the Northwest PacificOcean NONAKA, Nobuhide Abstract In thisresearch, 118 typhoons for five years from 1999 to 2003 in the northwest Pacific Ocean are investigated with satelliteimages focusing on each typhoon's formation point, time, and development type. The development classificationsof typhoons usingsatelliteimages are (1) S-EC type originated at low latitude,and which is from a cloud cluster moving westward alternatingthe direction between south and north; (2) S-SH type is caused by wind shear between southwesterly winds blowing from Indian Ocean to Indochina, or from the south hemisphere toward across the equator and the trade winds blowing from the subtropical;(3) S-UC type formed in the vicinityof upper-level cold low; and (4) S-mixed type which has both characteristicsof S-EC and S-SH. Data from satelliteimages have revealed that S-EC, S-SH, and S-mixed types are about 30 percent of the totalnumbers over the study period respectively. Also, the formation of S-SH and S-UC tvoes is concentrated in summer season. HE 1=^- isv^-c^kHifefi1 Li^^H^lRll^^S^ 9-> K^ 9^^-±.X-^^.t41),S-SHMC-f > K#^ WSrSrrw, s-ECM> s-shM, s-iff^M^H^SiJ^ii-ett^ti^^oltisfJ-e^^ii:, s-shM t S-＼JCm<D&tkltWmizMLtP1-Z>MfarfJhZ>Z.hti:b*tffrfr^tZn cECS ±111 JKM≫ ^ITCZ(Sl:fi?JRm:ffir)±O^ 7 ･? Y9y*9-h<DiJ -y-fi)>?M ■8―15° N^ffi cshM 15-
Transcript of nmnmty?- &i?^ H46^t 2005^3^ · 10 s 8 7 6 3 2 1 0 METEOROLOGICAL SATELLITE CENTER TECHNICAL NOTE...
nmnmty?- &i?^ H46^t 2005^3^
Characteristics of the Developmental Sequence of Typhoons in the Northwest PacificOcean
NONAKA, Nobuhide
Abstract
In thisresearch, 118 typhoons for five years from 1999 to 2003 in the northwest Pacific Ocean are
investigated with satelliteimages focusing on each typhoon's formation point, time, and development
type. The development classificationsof typhoons using satelliteimages are (1) S-EC type originated at
low latitude,and which is from a cloud clustermoving westward alternatingthe direction between south
and north; (2) S-SH type is caused by wind shear between southwesterly winds blowing from Indian
Ocean to Indochina, or from the south hemisphere toward across the equator and the trade winds blowing
from the subtropical;(3) S-UC type formed in the vicinityof upper-level cold low; and (4) S-mixed type
which has both characteristicsof S-EC and S-SH. Data from satelliteimages have revealed that S-EC,
S-SH, and S-mixed types are about 30 percent of the totalnumbers over the study period respectively.
Also, the formation of S-SH and S-UC tvoes is concentrated in summer season.
HE 1=^-
isv^-c^kHifefi1 Li^^H^lRll^^S^ 9-> K^ 9^^-±.X-^^.t41),S-SHMC-f > K#^
WSrSrrw, s-ECM> s-shM, s-iff^M^H^SiJ^ii-ett^ti^^oltisfJ-e^^ii:, s-shM
t S-＼JCm<D&tkltWmizMLtP1-Z>MfarfJhZ>Z.hti:b*tffrfr^tZn
cECS
±111 JKM≫ ^ITCZ(Sl:fi?JRm:ffir)±O 7 ･?
Y9y*9-h<DiJ -y-fi)>?M ■8―15° N^ffi
cshM
15-
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