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Typhoon Chan-Hom - 2020/10/09 0600 UTC

Flight route of DOTSTAR

The flight route of DOTSTAR

Storm symbol in black: Location of the storm center at 2020/10/09 0600 UTC.
Storm symbol in green: Location of the storm center as the first dropwindsonde reached the surface.
Storm symbol in blue: Location of the storm center as the last dropwindsonde reached the surface.

Wind vector at each pressure level

Dropwindsonde information and the estimated surface wind speed

12020/10/08 04:12:39125.225.483600411.010.810.8
22020/10/08 04:46:59129.426.145435915.212.011.6
32020/10/08 05:06:05131.825.8352298---11.810.9
42020/10/08 05:30:06134.327.5213190---24.221.3
52020/10/08 05:39:48134.628.517815927.527.7---
62020/10/08 05:52:00133.729.612409024.124.722.0
72020/10/08 06:08:48131.729.7149025---32.330.8
82020/10/08 06:18:01130.729.3212017---25.423.8
92020/10/08 06:26:11129.928.6286008---18.919.3
102020/10/08 06:38:25129.227.5384351---8.88.2
112020/10/08 06:57:27127.126.960400411.09.910.1

TIME: Time when dropwindsondes reached the surface. (UTC)
DIST: The distance form each dropwindsonde to the corresponded storm center. (km)
WD: Surface wind direction. (degree)
Surface wind speed: (unit : m/s)
(1) WS: Surface wind speed (at a height of 10 meters) directly from the dropwindsondes.
(2) MBL (Franklin 2003): Averaging the dropwindsonde wind speed over the 0~500 m layer, multiplied by 0.80.
(3) WL150 (Franklin 2003): Averaging the dropwindsonde wind speed over the 0~150 m layer, divided by 1.229.



(925 hPa wind, one full barb = 10 m/s)

Ask for Data

If you want to ask for the raw data of dropwindsondes, please contact with Central Weather Bureau (CWB).