USTH Space Talk: On the beauty of the phase for ground motion detection from space
The Department of Space and Aeronautics, University of Science and Technology of Hanoi wishes to notify and invite you to the seminar given by Dr. Habil. Dinh HO TONG MINH (INRAE, TETIS, University of Montpellier) which will be held at 17h, on Thursday, December 19th, 2019.
Many areas in Vietnam, and in particular the deltaic regions of Hanoi, Ho Chi Minh city and the Mekong, are vulnerable to ground subsidence due to both natural (poorly consolidated deltaic sediments) and anthropogenic (ground water exploitation) reasons. The effect of subsidence may be increased due to climate change and related sea level changes. The natural question is raised: How to measure precisely the ground subsidence for large scale? As far as we know, the synthetic aperture radar interferometry (InSAR) is breakthrough technique and a unique answer for that question. In fact, InSAR quantifies a phase shift of radar waves to measure the ground motion with millimetric accuracy from space. The aim of this talk is: (1) to provide a better understanding of the capabilities of the interferometric phase for detection and monitoring the ground subsidence; (2) to demonstrate examples in Hanoi, Ho Chi Minh city and the Mekong; (3) to highlight the implication on a new Vietnam X-band SAR mission (JV-LOTUSat) which has been scheduled for launch for the 2023 timeframe.
The talk can be either in English or in Vietnamese.
We are looking forward to welcoming all those who are interested in attending.
- Title: On the beauty of the phase for ground motion detection from space
- Speaker: Dr. Habil. Dinh HO TONG MINH (INRAE, TETIS, University of Montpellier)
- Time: 17:00, Thursday, December 19th, 2019.
- Venue: Room 702, A21 Building, University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi.
Abstract
Many areas in Vietnam, and in particular the deltaic regions of Hanoi, Ho Chi Minh city and the Mekong, are vulnerable to ground subsidence due to both natural (poorly consolidated deltaic sediments) and anthropogenic (ground water exploitation) reasons. The effect of subsidence may be increased due to climate change and related sea level changes. The natural question is raised: How to measure precisely the ground subsidence for large scale? As far as we know, the synthetic aperture radar interferometry (InSAR) is breakthrough technique and a unique answer for that question. In fact, InSAR quantifies a phase shift of radar waves to measure the ground motion with millimetric accuracy from space. The aim of this talk is: (1) to provide a better understanding of the capabilities of the interferometric phase for detection and monitoring the ground subsidence; (2) to demonstrate examples in Hanoi, Ho Chi Minh city and the Mekong; (3) to highlight the implication on a new Vietnam X-band SAR mission (JV-LOTUSat) which has been scheduled for launch for the 2023 timeframe.
The talk can be either in English or in Vietnamese.
We are looking forward to welcoming all those who are interested in attending.