Search results for: Eric Fielding

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article

Depth varying rupture properties during the 2015 Mw 7.8 Gorkha (Nepal) earthquake

Han Yue, Mark Simons, Zacharie Duputel, Junle Jiang, more

Tectonophysics > 2017 > 714-715 > C > 44-54

On April 25th 2015, the Mw 7.8 Gorkha (Nepal) earthquake ruptured a portion of the Main Himalayan Thrust underlying Kathmandu and surrounding regions. We develop kinematic slip models of the Gorkha earthquake using both a regularized multi-time-window (MTW) approach and an unsmoothed Bayesian formulation, constrained by static and high rate GPS observations, synthetic aperture radar (SAR) offset images,...

chapter

The ongoing destabilization of the mosul dam as observed by synthetic aperture radar interferometry

Pietro Milillo, Maria Cristina Porcu, Paul Lundgren, Fabio Soccodato, more

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) > 6279 - 6282

IGARSS 2017 - 2017 IEEE International Geoscience and Remote Sensing Symposium

We present a detailed survey on the ongoing destabilization process of the Mosul dam. The dam is located on the Tigris river and is the biggest hydraulic structure in Iraq. From a geological point of view the dam foundation is unstable due to the underlying geology that is formed by alternate and variable strata of highly soluble materials such as gypsum, anhydrite, marl and limestone. Here we present...

article

Fault geometry of 2015, Mw7.2 Murghab, Tajikistan earthquake controls rupture propagation: Insights from InSAR and seismological data

Simran Sangha, Gilles Peltzer, Ailin Zhang, Lingsen Meng, more

Earth and Planetary Science Letters > 2017 > 462 > C > 132-141

Combining space-based geodetic and array seismology observations can provide detailed information about earthquake ruptures in remote regions. Here we use Landsat-8 imagery and ALOS-2 and Sentinel-1 radar interferometry data combined with data from the European seismology network to describe the source of the December 7, 2015, Mw7.2 Murghab (Tajikistan) earthquake. The earthquake reactivated a ∼79...

chapter

Recent rapid disaster response products derived from COSMO-Skymed synthetic aperture radar data

Sang-Ho Yun, Susan Owen, Frank Webb, Hook Hua, more

2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) > 2066 - 2069

IGARSS 2016 - 2016 IEEE International Geoscience and Remote Sensing Symposium

The April 25, 2015 M7.8 Gorkha earthquake caused more than 8,000 fatalities and widespread building damage in central Nepal. Four days after the earthquake, the Italian Space Agency's (ASI's) COSMO-SkyMed Synthetic Aperture Radar (SAR) satellite acquired data over Kathmandu area. Nine days after the earthquake, the Japan Aerospace Exploration Agency's (JAXA's) ALOS-2 SAR satellite covered larger area...

article

The 2012 Brawley swarm triggered by injection-induced aseismic slip

Shengji Wei, Jean-Philippe Avouac, Kenneth W. Hudnut, Andrea Donnellan, more

Earth and Planetary Science Letters > 2015 > 422 > C > 115-125

It has long been known that fluid injection or withdrawal can induce earthquakes, but the underlying mechanisms remain elusive. For example, the 2012 Brawley swarm, which produced two strike-slip shocks with magnitudes larger than 5.3 and surface ruptures in the close vicinity of a geothermal field, started with earthquakes about 5 km deeper than the injection depth (∼1.5 km). This makes the causality...

chapter

Kinematics of the slumgullion landslide from UAVSAR derived interferograms

Brent Delbridge, Roland Burgmann, Eric Fielding, Scott Hensley

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) > 3842 - 3845

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)

In order to measure the response of the Slumgullion landslide to hydraulic forcing, we utilize the unique capabilities of the NASA/JPL's UAVSAR airborne repeat-pass SAR interferometry system to provide surface geodetic measurements with “landslide-wide” spatial coverage. Unlike traditional space-based INSAR we are not restricted to fixed flight tracks or fixed repeat times, allowing for optimal imaging...

chapter

Ground displacement measurement of the 2013 M7.7 and M6.8 Balochistan Earthquake with TerraSAR-X ScanSAR data

Nestor Yague-Martinez, Eric Fielding, Mahmud Haghshenas-Haghighi, Xiao Ying Cong, more

2014 IEEE Geoscience and Remote Sensing Symposium > 950 - 953

IGARSS 2014 - 2014 IEEE International Geoscience and Remote Sensing Symposium

This paper addresses the November 2013 Balochistan Earthquake. A co-seismic TerraSAR-X pair acquired in wide-swath ScanSAR mode has been used to derive two-dimensional deformation measurements (radar line-of-sight and azimuth direction) of the eastern part of the main M7.7 earthquake and the large M6.8 aftershock by correlating SAR amplitude images. Atmospheric and solid Earth tide corrections have...

article

Remote sensing and the search for surface rupture, Haiti 2010

Roger Bilham, Eric Fielding

Natural Hazards > 2013 > 68 > 1 > 213-217

Minutes after the January 12, 2010 Haiti earthquake, most geologists and seismologists assumed that from its shallow teleseismic location and its largely strike-slip mechanism that a significant rupture must have occurred on the transform plate boundary south and west of Port au Prince. Within hours, plans were being made by geologists to map the anticipated rupture and, if possible, to trench it...

article

Effects of Digital Elevation Model Accuracy on Hydrologic Predictions

Tracey Kenward, Dennis P. Lettenmaier, Eric F. Wood, Eric Fielding

Remote Sensing of Environment > 2000 > 74 > 3 > 432-444

The effect of vertical accuracy of digital elevation models (DEMs) on hydrologic prediction accuracy was evaluated by comparing three DEMs and associated streamflow simulations for the 7.2 km ² USDA-ARS watershed at Mahantango Creek, PA. The DEMs were the standard 30 m USGS 7.5' DEM, a 5 m product derived from low altitude aerial photography, and a 30 m product derived from interferometric...

article

SIR-B Radar Imagery of Volcanic Deposits in the Andes

Eric Fielding, William Knox, Arthur Bloom

IEEE Transactions on Geoscience and Remote Sensing > 1986 > GE-24 > 4 > 582 - 589

The Andean Cordillera of western South America between 16?S and 28?S and south of 34?S latitude have been two of the most volcanically active areas in the world for the last 25 million years (Ma). Synthetic-aperture radar imagery from the Shuttle Imaging Radar-mission B (SIR-B) was collected in October 1984 over the central Andes between 20?S and 24?S and also south of 42 ?S. Despite signal-strength...

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Search results for: Eric Fielding

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