Typhoon Megi - 2010/10/17 0000 UTC

Flight route of DOTSTAR

The flight route of DOTSTAR

Storm symbol in black: Location of the storm center at 2010/10/17 0000 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

NO.TIMELongitudeLatitudeDISTWDWSMBLWL150
12010/10/16 21:56:29121.021.076704511.211.710.6
22010/10/16 22:11:42122.720.858903415.913.712.4
32010/10/16 22:28:15124.620.941705811.110.58.8
42010/10/16 22:44:23126.420.9285036---17.216.6
52010/10/16 23:00:06126.019.3195021---17.116.9
62010/10/16 23:14:57126.517.8158------------
72010/10/16 23:28:36127.817.0190253---14.113.8
82010/10/16 23:43:42129.417.3253171---13.111.7
92010/10/16 23:59:37129.918.9255------------
102010/10/17 00:12:37129.920.4320------19.0---
112010/10/17 00:35:24128.621.432606120.518.717.5
122010/10/17 00:50:35128.723.352906514.712.412.6
132010/10/17 01:10:28126.922.6441041---13.412.5
142010/10/17 01:23:54125.623.354604213.512.411.9
152010/10/17 01:41:37126.724.767304211.610.510.2
162010/10/17 02:02:30125.226.083904413.811.511.7

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.

CWB QPESUMS Image

CWB QPESUMS Image

(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).