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Typhoon Lan - 2017/10/21 1200 UTC

Flight route of DOTSTAR

The flight route of DOTSTAR

Storm symbol in black: Location of the storm center at 2017/10/21 1200 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
12017/10/21 09:53:35123.926.090635319.718.518.2
22017/10/21 10:05:44125.926.5738347---19.717.9
32017/10/21 10:24:23127.426.058400317.519.117.5
42017/10/21 10:37:20127.224.654835023.721.020.4
52017/10/21 10:54:19128.423.1418320---19.417.5
62017/10/21 11:08:44129.822.0327------21.1---
72017/10/21 11:23:07131.721.6241------------
82017/10/21 11:34:08133.221.8221226---28.325.8
92017/10/21 11:47:48134.323.2188159---25.621.4
102017/10/21 12:01:45134.025.0195121---22.118.5
112017/10/21 12:14:25133.126.529609616.720.216.8
122017/10/21 12:28:52131.427.4404053---13.612.9
132017/10/21 12:39:36129.828.1537------------
142017/10/21 12:55:53127.828.3677020---18.418.9
152017/10/21 13:09:40126.128.5817357---16.013.6
162017/10/21 13:21:33124.628.4938357---18.116.7

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)

TEMPDROP Download

WMO/TEMPDROP format code. [ZIP archive file]

If you need the raw data, please see the page of Ask for Data .