Eric J Fielding
California Institute of Technology, Jet Propulsion Lab, Department Member
Research Interests:
Research Interests:
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Research Interests:
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On March 5, 2011, the Kamoamoa fissure eruption began along the east rift zone (ERZ) of Kilauea Volcano. It followed several months of pronounced inflation at Kilauea's summit and was the first dike intrusion into the ERZ since June... more
On March 5, 2011, the Kamoamoa fissure eruption began along the east rift zone (ERZ) of Kilauea Volcano. It followed several months of pronounced inflation at Kilauea's summit and was the first dike intrusion into the ERZ since June 2007. The eruption began in the late afternoon of March 5, 2011 (Hawaii Standard Time; UTC-10: 00 hrs) with rapid deflation beginning at Pu'u'O'o crater along the ERZ and followed about 30 minutes later at the summit. Magma from both locations fed the intrusion and an eruption that included ...
Research Interests:
Kilauea Volcano, Hawaii, has a wealth of constantly changing magmatic and structural deformation processes. Interferometric synthetic aperture radar (InSAR) observations provide important constraints on the magmatic and structural source... more
Kilauea Volcano, Hawaii, has a wealth of constantly changing magmatic and structural deformation processes. Interferometric synthetic aperture radar (InSAR) observations provide important constraints on the magmatic and structural source parameters that complement the more sparse in-situ networks of continuous GPS and tiltmeter observations. We present results from multiple SAR platforms: satellite data from the European Space Agency Envisat, Japan Aerospace Exploration Agency ALOS, German ...
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The April 4th, 2010 Mw 7.2 earthquake was the largest earthquake in over 100 years of known historical seismicity in the Salton Trough region. It was a relatively benign earthquake, with only two deaths related to its occurrence. It... more
The April 4th, 2010 Mw 7.2 earthquake was the largest earthquake in over 100 years of known historical seismicity in the Salton Trough region. It was a relatively benign earthquake, with only two deaths related to its occurrence. It produced, however, profound agricultural and ecological changes at the southern section of the Mexicali Valley, where a new fault called the Indiviso fault, is shown to have ruptured by analysis of ALOS PALSAR and Landsat imagery. The Indiviso fault connects the ridge-transform and continental ...
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Research Interests:
Research Interests:
: Topography and heterogeneous crustal structure have major effects on the propagation of regional seismic phases. We are collecting topographical, geological, and geophysical datasets for Eurasia into an information system that can be... more
: Topography and heterogeneous crustal structure have major effects on the propagation of regional seismic phases. We are collecting topographical, geological, and geophysical datasets for Eurasia into an information system that can be accessed via Internet connections. Now available are digital topography, satellite imagery, and data on sedimentary basins and crustal structure thicknesses. We are expanding the scope of our information system to include data on the Middle East and North Africa. Under the auspices of several other ongoing projects at Cornell we have collected a very large literature collection, satellite imagery and some detailed datasets, especially in Syria and Morocco. New datasets for Eurasia include maps of depth to Moho beneath Europe and Scandinavia. We have created regularly spaced grids of the crustal thickness values from these maps that can be used to create profiles of crustal structure. These profiles can be compared by an analyst or an automatic program...
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Research Interests:
Research Interests:
Research Interests: Geology and Geophysics
... Synthetic Aperture Radar (SAR) images can be combined using interferometric analysis to measure surface deformation remotely [Gabriel et al., 1989]. ... We are grateful to P. Rosen and S. Hensley for the use of their ROI_pac... more
... Synthetic Aperture Radar (SAR) images can be combined using interferometric analysis to measure surface deformation remotely [Gabriel et al., 1989]. ... We are grateful to P. Rosen and S. Hensley for the use of their ROI_pac interferometry software, and R. Crippen and K. Burke ...
... Synthetic Aperture Radar (SAR) images can be combined using interferometric analysis to measure surface deformation remotely [Gabriel et al., 1989]. ... We are grateful to P. Rosen and S. Hensley for the use of their ROI_pac... more
... Synthetic Aperture Radar (SAR) images can be combined using interferometric analysis to measure surface deformation remotely [Gabriel et al., 1989]. ... We are grateful to P. Rosen and S. Hensley for the use of their ROI_pac interferometry software, and R. Crippen and K. Burke ...
Research Interests: Cartography, Geophysics, Middle East, Interferometry, Models, and 15 moreInSAR, Deformation, Geomatic Engineering, Atmospheric Correction, Reduction, Cross Validation, Bam earthquake, InSAR time series, Correlation coefficient, Atmospheric Optics, Electrical And Electronic Engineering, Atmospheric Effects, baseline, Precipitable Water Vapor, and Line of sight
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We analyzed Synthetic Aperture Radar (SAR) images from Copernicus Sentinel-1A and 1B satellites operated by the European Space Agency and the Advanced Land Observation Satellite-2 (ALOS-2) satellite operated by the Japan Aerospace... more
We analyzed Synthetic Aperture Radar (SAR) images from Copernicus Sentinel-1A and 1B satellites operated by the European Space Agency and the Advanced Land Observation Satellite-2 (ALOS-2) satellite operated by the Japan Aerospace Exploration Agency and Global Navigation Satellite System (GNSS) data from the Network of the Americas for the 4 July 2019 Mw 6.4 and 5 July (local; 6 July UTC) Mw 7.1 Ridgecrest earthquakes. We integrated geodetic measurements for the 3D vector field of coseismic surface deformation for the two events, using SAR data from Sentinel-1 and ALOS-2 satellites. We combined less precise large-scale displacements from SAR images by pixel offset tracking or matching, including the along-track component, with the more precise SAR interferometry (Interferometric Synthetic Aperture Radar [InSAR]) measurements in the radar line of sight (LoS) direction and intermediate-precision along-track InSAR to estimate all three components of the surface displacement for the two...
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Research Interests:
The Slumgullion landslide, located in southwestern Colorado, has been active since the early 1700s and current data suggests that the most active portion of the slide creeps at a rate of ~1.5–2.0 cm/day. Accurate deformation measurement... more
The Slumgullion landslide, located in southwestern Colorado, has been active since the early 1700s and current data suggests that the most active portion of the slide creeps at a rate of ~1.5–2.0 cm/day. Accurate deformation measurement techniques are vital to the understanding of persistent, yet slow-moving landslides like the Slumgullion. The factors that affect slope movements at the Slumgullion are on-time scales that are well suited towards a remotely sensed approach to constrain the 12 different kinematic units that make up the persistent creeping landslide. We derive a time series of motion vectors (magnitude and direction) using subpixel offset techniques from very high resolution TerraSAR-X Staring Spotlight ascending/descending data as well as from a novel high-resolution amalgamation of airborne lidar and unmanned aerial systems (UAS) Structure from Motion (SfM) digital surface model (DSM) hillshades. Deformation rates calculated from the spaceborne and airborne datasets ...