Integrating computer vision technique to support Tsunami Early Warning System

2012 ◽  
Author(s):  
Setiawan Hadi ◽  
Dian Nursantika ◽  
Ika Purwanti
Keyword(s):  
Computer Vision ◽  
Early Warning ◽  
Early Warning System ◽  
Warning System ◽  
Tsunami Early Warning ◽  
Vision Technique ◽  
Computer Vision Technique

scholarly journals Near real-time GPS applications for tsunami early warning systems

2010 ◽  
Vol 10 (2) ◽  
pp. 181-189 ◽  
Author(s):  
C. Falck ◽  
M. Ramatschi ◽  
C. Subarya ◽  
M. Bartsch ◽  
A. Merx ◽  
...  
Keyword(s):  
Real Time ◽  
Early Warning ◽  
Early Warning System ◽  
Tide Gauge ◽  
Warning System ◽  
Early Warning Systems ◽  
Time Data ◽  
Essential Information ◽  
Tsunami Early Warning ◽  
Land Mass

Abstract. GPS (Global Positioning System) technology is widely used for positioning applications. Many of them have high requirements with respect to precision, reliability or fast product delivery, but usually not all at the same time as it is the case for early warning applications. The tasks for the GPS-based components within the GITEWS project (German Indonesian Tsunami Early Warning System, Rudloff et al., 2009) are to support the determination of sea levels (measured onshore and offshore) and to detect co-seismic land mass displacements with the lowest possible latency (design goal: first reliable results after 5 min). The completed system was designed to fulfil these tasks in near real-time, rather than for scientific research requirements. The obtained data products (movements of GPS antennas) are supporting the warning process in different ways. The measurements from GPS instruments on buoys allow the earliest possible detection or confirmation of tsunami waves on the ocean. Onshore GPS measurements are made collocated with tide gauges or seismological stations and give information about co-seismic land mass movements as recorded, e.g., during the great Sumatra-Andaman earthquake of 2004 (Subarya et al., 2006). This information is important to separate tsunami-caused sea height movements from apparent sea height changes at tide gauge locations (sensor station movement) and also as additional information about earthquakes' mechanisms, as this is an essential information to predict a tsunami (Sobolev et al., 2007). This article gives an end-to-end overview of the GITEWS GPS-component system, from the GPS sensors (GPS receiver with GPS antenna and auxiliary systems, either onshore or offshore) to the early warning centre displays. We describe how the GPS sensors have been installed, how they are operated and the methods used to collect, transfer and process the GPS data in near real-time. This includes the sensor system design, the communication system layout with real-time data streaming, the data processing strategy and the final products of the GPS-based early warning system components.

scholarly journals GPS water level measurements for Indonesia's Tsunami Early Warning System

2011 ◽  
Vol 11 (3) ◽  
pp. 741-749 ◽  
Author(s):  
T. Schöne ◽  
W. Pandoe ◽  
I. Mudita ◽  
S. Roemer ◽  
J. Illigner ◽  
...  
Keyword(s):  
Water Level ◽  
Early Warning ◽  
Early Warning System ◽  
Warning System ◽  
Deep Ocean ◽  
Ocean Bottom ◽  
Tsunami Early Warning ◽  
Tsunami Waves ◽  
Gps Technology ◽  
Water Level Measurements

Abstract. On Boxing Day 2004, a severe tsunami was generated by a strong earthquake in Northern Sumatra causing a large number of casualties. At this time, neither an offshore buoy network was in place to measure tsunami waves, nor a system to disseminate tsunami warnings to local governmental entities. Since then, buoys have been developed by Indonesia and Germany, complemented by NOAA's Deep-ocean Assessment and Reporting of Tsunamis (DART) buoys, and have been moored offshore Sumatra and Java. The suite of sensors for offshore tsunami detection in Indonesia has been advanced by adding GPS technology for water level measurements. The usage of GPS buoys in tsunami warning systems is a relatively new approach. The concept of the German Indonesian Tsunami Early Warning System (GITEWS) (Rudloff et al., 2009) combines GPS technology and ocean bottom pressure (OBP) measurements. Especially for near-field installations where the seismic noise may deteriorate the OBP data, GPS-derived sea level heights provide additional information. The GPS buoy technology is precise enough to detect medium to large tsunamis of amplitudes larger than 10 cm. The analysis presented here suggests that for about 68% of the time, tsunamis larger than 5 cm may be detectable.

Community participation in tsunami early warning system in Pangandaran town

2017 ◽  
Author(s):  
Sapari D. Hadian ◽  
Ute Lies Siti Khadijah ◽  
Encang Saepudin ◽  
Agung Budiono ◽  
Ayu Krishna Yuliawati
Keyword(s):  
Community Participation ◽  
Early Warning ◽  
Early Warning System ◽  
Warning System ◽  
Tsunami Early Warning

Development of a tsunami early warning system for the South China Sea

2015 ◽  
Vol 100 ◽  
pp. 1-18 ◽  
Author(s):  
Simon C. Lin ◽  
Tso-Ren Wu ◽  
Eric Yen ◽  
Hsin-Yen Chen ◽  
John Hsu ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Early Warning ◽  
Early Warning System ◽  
Warning System ◽  
The South China Sea ◽  
The South ◽  
Tsunami Early Warning ◽  
China Sea

scholarly journals Kajian Kerentanan Fasilitas Darat Ina-CBT terhadap Guncangan Gempabumi

2020 ◽  
Vol 4 (1) ◽  
pp. 28-40
Author(s):  
Mulyo Harris Pradono
Keyword(s):  
Real Time ◽  
Early Warning ◽  
Early Warning System ◽  
Warning System ◽  
Tsunami Early Warning

Ina-CBT adalah Indonesia Cable-Based Tsunamimeter (atau Tsunameter). Ina-CBT adalah bagian dari Ina-TEWS (Indonesia Tsunami Early Warning System) yang merupakan sistem peringatan dini tsunami di Indonesia yang bertujuan memberikan peringatan dini tsunami saat kejadian berlangsung. Cable-Based Tsunamimeter ini terdiri dari sensor bawah laut yang mengukur getaran gempa dan tekanan air. Data getaran dan tekanan kemudian diteruskan melalui kabel bawah laut sampai ke daratan. Fasilitas di daratan menjadi sangat penting karena secara real time mengirim data melalui radio ke pusat pemantauan. Fasilitas daratan terdiri dari Beach Man Hole (BMH), Menara, dan Rumah Listrik. Semua fasilitas ini harus tetap bekerja walaupun guncangan gempa besar terjadi yang mengawali terjadinya tsunami. Fasilitas ini juga harus dibuat aman terhadap terjangan tsunami. Di dalam makalah ini, kerentanan fasilitas tersebut dikaji terhadap guncangan gempa sesuai dengan standar yang berlaku.

scholarly journals Recent Advances in the Indian Tsunami Early Warning System

2016 ◽  
Vol 82 (3) ◽  
Author(s):  
Sunanda Manneela ◽  
E. Uma Devi ◽  
Dipankar Saikia ◽  
T. Srinivasa Kumar ◽  
S. S. C. Shenoi
Keyword(s):  
Early Warning ◽  
Early Warning System ◽  
Warning System ◽  
Tsunami Early Warning ◽  
Recent Advances
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