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Erosion effects ass...
Erosion effects assessed by repeated gravity measurements in southern Taiwan
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- Mouyen, Maxime, 1982 (författare)
- National Chiao Tung University,Université de Strasbourg,University of Strasbourg
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- Masson, Frederic (författare)
- Université de Strasbourg,University of Strasbourg
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- Hwang, Cheinway (författare)
- National Chiao Tung University
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- Chen, Ching-Chung (författare)
- National Chiao Tung University
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- Le Moigne, Nicolas (författare)
- Université de Montpellier,University of Montpellier
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- Lee, C.W. (författare)
- Industrial Technology Research Institute of Taiwan
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- Kao, Ricky (författare)
- Industrial Technology Research Institute of Taiwan,National Chiao Tung University,University of Calgary
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- Hsieh, Wen-Chi (författare)
- National Central University,National Chiao Tung University
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(creator_code:org_t)
- 2012-11-15
- 2013
- Engelska.
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Ingår i: Geophysical Journal International. - : Oxford University Press (OUP). - 0956-540X .- 1365-246X. ; 192:1, s. 113-136
- Relaterad länk:
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https://academic.oup...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We analyse temporal variations of gravity measured in southern Taiwan since November 2006 at 10 sites using absolute gravimeters and, since November 2008, at 70 sites using a relative gravimeter. We describe and apply methods to interpret the gravity changes in terms of local hydrological processes and vertical ground motions. The effect of land water is computed from local rainfall data and a model of rain accumulation and discharge in the ground. The effect of the vertical motions of the ground is estimated using time-series of permanent Global Positioning System (GPS) stations and the theoretical gravity to height ratio of -2 μGal cm-1. Unexpectedly, Morakot typhoon (2009 August), the strongest typhoon in Taiwan in 50 yr, was responsible for the highest gravity changes. Morakot triggered numerous large landslides and debris flow deposits. Their thicknesses are estimated from the gravity changes (up to 280 μGal) along with field observations and satellite images.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geofysik (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geophysics (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Multidisciplinär geovetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geosciences, Multidisciplinary (hsv//eng)
Nyckelord
- Time variable gravity
- Creep and deformation
- Asia
- Hydrology
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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