Nav: Home

NASA satellites dissect Typhoon Dujuan affecting Taiwan

September 28, 2015

NASA's Aqua and Terra satellites provided visible and infrared data on Typhoon Dujuan's clouds while NASA's RapidScat instrument analyzed the storm's powerful winds as it approached Taiwan.

At 8 a.m. EDT Sept. 27, RapidScat identified the strongest area of sustained winds in Typhoon Dujuan were around the center of circulation where they were near 45 meters per second (100 mph/162 kph). The data was analyzed and made into an image at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California.

JPL also analyzed infrared temperature data from the Atmospheric Infrared Sounder or AIRS instrument that flies aboard NASA's Aqua satellite. On Sept. 27 at 17:17 UTC (1:17 p.m. EDT) the AIRS instrument saw very cold, high, powerful thunderstorms with cloud top temperatures in excess of -81F/-63C/210K around the center of Dujuan. Cloud tops that cold have the ability to generate heavy rainfall.

The next day, the Moderate Resolution Imaging Spectroradiometer or MODIS instrument aboard NASA's Terra satellite captured a visible image of Typhoon Dujuan affecting Taiwan on Sept. 28 at 02:45 UTC (Sept. 27 at 10:45 p.m. EDT). The image showed that Dujuan maintained a large and clear eye upon its approach to Taiwan.

At 1500 UTC (11 a.m. EDT), the center of Dujuan was located near 24.4 North latitude and 121.5 East longitude, just 42 miles south of Taipei, Taiwan. Dujuan was moving to the west-northwest at 13 knots (14.9 mph/24 kph) and had maximum sustained winds near 100 knots (115.1 mph/185.2 kph).

Dujuan was moving across Taiwan and is expected to weaken during its trek west. The storm is expected to make another landfall in southeastern China in a day as a typhoon.

For updated forecast tracks visit the Joint Typhoon Warning Center page: For forecast updates from Taiwan's Central Weather Bureau, visit: For forecast updates and warnings and watches from China's Meteorological Administration, visit:

NASA/Goddard Space Flight Center

Related Typhoon Articles:

NASA sees Typhoon Sarika approaching second landfall
NASA-NOAA's Suomi NPP satellite provided a visible look at Typhoon Sarika as it was poised for its second of three expected landfalls.
NASA sees the closing eye of Typhoon Chaba
NASA satellite imagery showed that Typhoon Chaba's eye had closed as the storm weakened between Oct.
NASA sees Chaba intensifying to a super typhoon
As Typhoon Chaba moved to the western Pacific Ocean south of Okinawa over the past few days wind speeds have increased.
NASA sees Typhoon Lionrock approaching Japan
Tropical Storm Lionrock continued crawling toward the main island of Honshu, Japan, as NASA's Aqua and NASA-NOAA's Suomi NPP satellites passed overhead and gathered data on the storm.
Typhoon Lionrock threatening Japan
Depending on the intensity track of Typhoon Lionrock, it could pass over Japan with the strength of a lion or or the weakness of a lamb.
Typhoon Lionrock's intensification seen by NASA's GPM
Typhoon Lionrock's rainfall rates and cloud heights were analyzed as it continued to intensify when the Global Precipitation Measurement mission or GPM core satellite passed overhead.
NASA sees Lionrock strengthen into a typhoon
NASA-NOAA's Suomi NPP satellite passed over Typhoon Lionrock as it strengthened to a typhoon east of Japan's Ryukyu Islands.
NASA sees Typhoon Nida make landfall
NASA's Terra satellite flew over Typhoon Nida shortly after it made landfall just north of Hong Kong.
NASA's GPM finds extreme rainfall in Typhoon In-fa
The Global Precipitation Measurement mission known as GPM passed over Typhoon In-fa and found extreme rainfall occurring in the storm.
NASA's Terra satellite sees Typhoon In-fa stretching
NASA's Terra satellite flew over Typhoon In-fa on Nov. 23 and imagery showed the storm had become elongated to the northeast.

Related Typhoon Reading:

Best Science Podcasts 2019

We have hand picked the best science podcasts for 2019. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Jumpstarting Creativity
Our greatest breakthroughs and triumphs have one thing in common: creativity. But how do you ignite it? And how do you rekindle it? This hour, TED speakers explore ideas on jumpstarting creativity. Guests include economist Tim Harford, producer Helen Marriage, artificial intelligence researcher Steve Engels, and behavioral scientist Marily Oppezzo.
Now Playing: Science for the People

#524 The Human Network
What does a network of humans look like and how does it work? How does information spread? How do decisions and opinions spread? What gets distorted as it moves through the network and why? This week we dig into the ins and outs of human networks with Matthew Jackson, Professor of Economics at Stanford University and author of the book "The Human Network: How Your Social Position Determines Your Power, Beliefs, and Behaviours".