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Seen from Space 2004

Super Typhoon No. 23 Hits Japan

 
Fig. 1 Typhoon No. 23 observed by MODIS Fig. 2 Typhoon No. 23 observed by AMSR-E

Typhoon No. 23 (Tokage) brought major damage to Japan for the first time since Typhoon No.10 in 1982. It affected Hyogo, Kyoto and Kagawa Prefectures severely. Ninety-one people were lost or killed during October 19 and 21, 2004. Typhoon No. 23 developed into a super typhoon (as of the afternoon of October 19) that covered a very wide area with 30 kt (15 m/s) winds or more. The damaged areas suffered from sustained strong winds and heavy rains over a long period while the typhoon was passing.

Figure 1 is a composite image based on the data acquired at 1109 (JST) on October 19 by MODIS on NASA's Earth-observation satellite Terra and the data acquired at 1249 (JST) on the same day by MODIS on NASA's Earth-observation satellite Aqua. The diameter of the typhoon was approximately 1,200 km. The figure shows that the typhoon was accompanied by a large group of clouds from the front north and northeast of the typhoon. Ice, represented in light blue, formed in the high-altitude well-developed clouds caused by the typhoon and the front.

Figure 2, an AMSR-E near-real-time image observed at 0231 (JST) on October 20,depicts a large volume of water vapor in the atmosphere (dark blue part over the ocean) and the well-developed clouds (yellow part) of Typhoon No. 23.

Fig. 3 Rain rate distribution acquired by PR and cloud image acquired by VIRS Fig. 4 Rain rate image acquired by TMI

Figure 3 is a super-imposed image of rain rates near the Earth's surface observed by PR and the cloud image observed at 1034 (JST) on October 20 by VIRS; both sensors are aboard the TRMM satellite. Figure 4 presents the precipitation observed by TMI aboard the TRMM satellite at the same time. You can see that the heavy precipitation area (red and yellow) is distributed in parts of Kyushu and Shikoku.

Typhoon No. 23 was also named Typhoon Tokage, after the Japanese constellation name "Tokage-za" which means Lizard (Lacerta).

Please visit here for more information on the names of typhoons.



Explanation of the images
Fig. 1
Satellite: Terra and Aqua(NASA)
Sensor: MODIS: Moderate Resolution Imaging Spectro-radiometer (NASA)
Time and date: 1109 (JST) on October 19, 2004 (Terra)
1249 (JST) on October 19, 2004 (Aqua)
Fig. 2
Satellite: Aqua (NASA)
Sensor: AMSR-E: Advanced Microwave Scanning Radiometer- EOS (JAXA)
Time and date: 0231 (JST) on October 20, 2004
Fig. 3
Satellite: TRMM: Tropical Rainfall Measuring Mission (Built and operated by NASA, launched by JAXA)
Sensor: PR: Precipitation Radar (JAXA),
VIRS: Visible and Infrared Scanner (NASA)
Time and date: 1034 (JST) on October 20, 2004
Fig. 4
Satellite: TRMM: Tropical Rainfall Measuring Mission (Built and operated by NASA, launched by JAXA)
Sensor: TMI: TRMM Microwave Imager (NASA)
Time and date: 1034 (JST) on October 20, 2004)

Related sites:
TRMM Tropical Cyclone Database
TRMM Tropical Cyclone Quick Report
AMSR-E Tropical Cyclone Quick Report
AMSR-E Today's Image
MODIS Near-real-time Images
FAQ on Tropical Cyclone within NOAA site
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