Latest News

2020/11/05

Typhoon Atsani(data provided by CWB)

read more ...

2020/10/08

Typhoon Chan-Hom(data provided by CWB)

read more ...

2019/10/20

Typhoon Neoguri(data provided by CWB)

read more ...

Typhoon Matmo - 2014/07/21 1200 UTC

Flight route of DOTSTAR

The flight route of DOTSTAR

Storm symbol in black: Location of the storm center at 2014/07/21 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
12014/07/21 10:17:14123.420.1304041---13.613.5
22014/07/21 10:29:44124.219.2168041---16.515.9
32014/07/21 10:38:33124.218.2141014---16.617.3
42014/07/21 10:47:32124.817.0171------------
52014/07/21 11:02:56125.515.6306------------
62014/07/21 11:09:58126.315.5340------------
72014/07/21 11:18:06127.116.1313194---16.914.8
82014/07/21 11:24:47127.616.6312176---16.416.9
92014/07/21 11:30:28128.317.2336------------
102014/07/21 11:41:23128.518.4331155---15.415.2
112014/07/21 11:49:57127.919.1276128---16.014.1
122014/07/21 12:00:21126.719.9218112---16.714.1
132014/07/21 12:11:50125.620.825107617.116.614.7
142014/07/21 12:12:20124.721.7354------------
152014/07/21 12:36:01125.323.1502092---11.710.8
162014/07/21 12:49:32126.024.7680------------

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).