MyJournals Home  

RSS FeedsRemote Sensing, Vol. 10, Pages 235: Seismic Remote Sensing of Super Typhoon Lupit (2009) with Seismological Array Observation in NE China (Remote Sensing)

 
 

4 february 2018 00:30:03

 
Remote Sensing, Vol. 10, Pages 235: Seismic Remote Sensing of Super Typhoon Lupit (2009) with Seismological Array Observation in NE China (Remote Sensing)
 


The p-wave double-frequency (DF) microseisms generated by super typhoon Lupit (14-26 October 2009) over the western Pacific Ocean were detected by an on-land seismological array deployed in Northeastern China. We applied a frequency-domain beamforming method to investigate their source regions. Comparing with the best-track data and satellite observations, the located source regions of the p-wave DF microseisms, which corresponded to the strongest ocean wave-wave interactions, were found to be comparable to the typhoon centers in the microseismic frequency band of ~0.18-0.21 Hz. The p-wave DF microseisms were probably excited by the nonlinear interaction of ocean waves generated by the typhoon at different times, in good agreement with the Longuet-Higgins theory for the generation of DF microseisms. The localization deviation, which was ~120 km for typhoon Lupit in this study, might depend on the speed and direction of typhoon movement, the geometry of the seismological array, and the heterogeneity of the solid Earth structure. The p-wave DF microseisms generated in coastal source regions were also observed in the beamformer outputs, but with relatively lower dominant frequency band of ~0.14-0.16 Hz. These observations show that the p-wave DF microseisms generated near typhoon centers could be used as a seismic remote sensing proxy to locate and track typhoons over the oceans from under water in a near-real-time and continuous manner.


 
163 viewsCategory: Geology, Physics
 
Remote Sensing, Vol. 10, Pages 219: Atmospheric and Radiometric Correction Algorithms for the Multitemporal Assessment of Grasslands Productivity (Remote Sensing)
Remote Sensing, Vol. 10, Pages 259: Vertical Displacements Driven by Groundwater Storage Changes in the North China Plain Detected by GPS Observations (Remote Sensing)
 
 
blog comments powered by Disqus


MyJournals.org
The latest issues of all your favorite science journals on one page

Username:
Password:

Register | Retrieve

Search:

Physics


Copyright © 2008 - 2024 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures News Tweets Nachrichten