[ { "id": "authors:ewmwp-gje50", "collection": "authors", "collection_id": "ewmwp-gje50", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20181108-155745164", "type": "book_section", "title": "The InSAR Scientific Computing Environment 3.0: A Flexible Framework for NISAR Operational and User-Led Science Processing", "book_title": "2018 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2018)", "author": [ { "family_name": "Rosen", "given_name": "Paul A.", "clpid": "Rosen-P-A" }, { "family_name": "Gurrola", "given_name": "Eric M.", "clpid": "Gurrola-E-M" }, { "family_name": "Agram", "given_name": "Piyush", "clpid": "Agram-P-S" }, { "family_name": "Cohen", "given_name": "Joshua", "clpid": "Cohen-J" }, { "family_name": "Lavalle", "given_name": "Marco", "clpid": "Lavalle-M" }, { "family_name": "Riel", "given_name": "Bryan V.", "orcid": "0000-0003-1940-3910", "clpid": "Riel-B" }, { "family_name": "Fattahi", "given_name": "Heresh", "orcid": "0000-0001-6926-4387", "clpid": "Fattahi-H" }, { "family_name": "Aivazis", "given_name": "Michael A. G.", "clpid": "Aivazis-M-A-G" }, { "family_name": "Simons", "given_name": "Mark", "orcid": "0000-0003-1412-6395", "clpid": "Simons-M" }, { "family_name": "Buckley", "given_name": "Sean M.", "clpid": "Buckley-S-M" } ], "abstract": "The InSAR Scientific Computing Environment (ISCE) was first developed under the NASA Advanced Information Systems Technology as a flexible, extensible object-oriented framework for Interferometric Synthetic Aperture Radar (InSAR) processing. The ISCE framework uses Python 3 at the workflow level, controlling modules of compiled code for functional processing, and managing inputs, outputs, and other flow control services. The currently released version, called ISCE 2.1, is distributed to the research community through the Western North America InSAR Consortium under a research license. The ISCE team is working on the next generation of the code in order to prepare for the NASA-ISRO SAR (NISAR) mission operational processing. Innovations in this code include augmentation or conversion of the custom Python framework elements in ISCE with the Pyre framework, new workflows for interferometric and polarimetric stack processing, a more intuitive and graphically based user interface, and flow control for hybrid computing environments including CPU/GPU clusters, logging and error tracking facilities, and new more efficient computational modules that exploit graphical processor units (GPUs) when available. The ISCE 3.0 framework is designed to work in an operational environment as well as on a single user's laptop or compute cluster, with services to discover capabilities and scale computations accordingly.", "doi": "10.1109/IGARSS.2018.8517504", "isbn": "978-1-5386-7150-4", "publisher": "IEEE", "place_of_publication": "Piscataway, NJ", "publication_date": "2018-07", "pages": "4897-4900" }, { "id": "authors:6srgx-sgn93", "collection": "authors", "collection_id": "6srgx-sgn93", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20161115-084858641", "type": "book_section", "title": "Recent rapid disaster response products derived from COSMO-Skymed synthetic aperture radar data", "book_title": "2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)", "author": [ { "family_name": "Yun", "given_name": "Sang-Ho", "orcid": "0000-0001-6952-6156", "clpid": "Yun-Sang-Ho" }, { "family_name": "Owen", "given_name": "Susan", "clpid": "Owen-S-E" }, { "family_name": "Webb", "given_name": "Frank", "clpid": "Webb-F-H" }, { "family_name": "Hua", "given_name": "Hook", "clpid": "Hua-Hook" }, { "family_name": "Milillo", "given_name": "Pietro", "orcid": "0000-0002-1171-3976", "clpid": "Milillo-P" }, { "family_name": "Fielding", "given_name": "Eric", "orcid": "0000-0002-6648-8067", "clpid": "Fielding-E-J" }, { "family_name": "Simons", "given_name": "Mark", "orcid": "0000-0003-1412-6395", "clpid": "Simons-M" }, { "family_name": "Agram", "given_name": "Piyush", "clpid": "Agram-P-S" }, { "family_name": "Liang", "given_name": "Cunren", "orcid": "0000-0003-3938-426X", "clpid": "Liang-Cunren" }, { "family_name": "Moore", "given_name": "Angelyn", "orcid": "0000-0003-1715-6338", "clpid": "Moore-A-W" }, { "family_name": "Sacco", "given_name": "Patrizia", "clpid": "Sacco-P" }, { "family_name": "Gurrola", "given_name": "Eric", "clpid": "Gurrola-E" }, { "family_name": "Manipon", "given_name": "Gerald", "clpid": "Manipon-G" }, { "family_name": "Rosen", "given_name": "Paul", "clpid": "Rosen-P-A" }, { "family_name": "Lundgren", "given_name": "Paul", "orcid": "0000-0002-6771-2876", "clpid": "Lundgren-P" }, { "family_name": "Coletta", "given_name": "Alessandro", "clpid": "Coletta-A" } ], "abstract": "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. Using these radar observations, we rapidly produced damage proxy maps derived from temporal changes in Interferometric SAR (InSAR) coherence. These maps were qualitatively validated through comparison with independent damage analyses by National Geospatial-Intelligence Agency (NGA) and the UNITAR's (United Nations Institute for Training and Research's) Operational Satellite Applications Programme (UNOSAT), and based on our own visual inspection of DigitalGlobe's WorldView optical pre- vs. post-event imagery. Our maps were quickly released to responding agencies and the public, and used for damage assessment, determining inspection/imaging priorities, and reconnaissance fieldwork.", "doi": "10.1109/IGARSS.2016.7729533", "isbn": "978-1-5090-3332-4", "publisher": "IEEE", "place_of_publication": "Piscataway, NJ", "publication_date": "2016-07", "pages": "2066-2069" }, { "id": "authors:0sb7c-vdq86", "collection": "authors", "collection_id": "0sb7c-vdq86", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150924-082128270", "type": "article", "title": "Rapid Imaging of Earthquake Ruptures with Combined Geodetic and Seismic Analysis", "author": [ { "family_name": "Fielding", "given_name": "Eric J.", "orcid": "0000-0002-6648-8067", "clpid": "Fielding-E-J" }, { "family_name": "Simons", "given_name": "Mark", "orcid": "0000-0003-1412-6395", "clpid": "Simons-M" }, { "family_name": "Owen", "given_name": "Susan", "clpid": "Owen-S-E" }, { "family_name": "Lundgren", "given_name": "Paul", "orcid": "0000-0002-6771-2876", "clpid": "Lundgren-P" }, { "family_name": "Hua", "given_name": "Hook", "clpid": "Hua-Hook" }, { "family_name": "Agram", "given_name": "Piyush", "clpid": "Agram-P-S" }, { "family_name": "Liu", "given_name": "Zhen", "orcid": "0000-0002-6313-823X", "clpid": "Liu-Zhen" }, { "family_name": "Moore", "given_name": "Angelyn", "orcid": "0000-0003-1715-6338", "clpid": "Moore-A-W" }, { "family_name": "Milillo", "given_name": "Pietro", "orcid": "0000-0002-1171-3976", "clpid": "Milillo-P" }, { "family_name": "Polet", "given_name": "Jascha", "clpid": "Polet-J" }, { "family_name": "Samsonov", "given_name": "Sergey", "clpid": "Samsonov-S" }, { "family_name": "Rosen", "given_name": "Paul", "clpid": "Rosen-P-A" }, { "family_name": "Webb", "given_name": "Frank", "clpid": "Webb-F" }, { "family_name": "Milillo", "given_name": "Giovanni", "clpid": "Milillo-G" } ], "abstract": "Rapid determination of the location and extent of earthquake ruptures is helpful for disaster response, as it allows prediction of the likely area of major damage from the earthquake and can help with rescue and recovery planning. With the increasing availability of near real-time data from the Global Positioning System (GPS) and other global navigation satellite system receivers in active tectonic regions, and with the shorter repeat times of many recent and newly launched satellites, geodetic data can be obtained quickly after earthquakes or other disasters. We have been building a data system that can ingest, catalog, and process geodetic data and combine it with seismic analysis to estimate the fault rupture locations and slip distributions for large earthquakes.", "doi": "10.1016/j.protcy.2014.10.038", "issn": "2212-0173", "publisher": "Elsevier", "publication": "Procedia Technology", "publication_date": "2014", "volume": "16", "pages": "876-885" }, { "id": "authors:7e1qz-z2718", "collection": "authors", "collection_id": "7e1qz-z2718", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20101115-122249097", "type": "article", "title": "Geodetic, teleseismic, and strong motion constraints on slip from recent southern Peru subduction zone earthquakes", "author": [ { "family_name": "Pritchard", "given_name": "M. E.", "clpid": "Pritchard-M-E" }, { "family_name": "Norabuena", "given_name": "E. O.", "clpid": "Norabuena-E-O" }, { "family_name": "Jillings", "given_name": "C.", "clpid": "Jillings-C" }, { "family_name": "Boroschek", "given_name": "R.", "clpid": "Boroschek-R" }, { "family_name": "Comte", "given_name": "D.", "clpid": "Comte-D" }, { "family_name": "Simons", "given_name": "M.", "orcid": "0000-0003-1412-6395", "clpid": "Simons-M" }, { "family_name": "Dixon", "given_name": "T. H.", "clpid": "Dixon-T-H" }, { "family_name": "Rosen", "given_name": "P. A.", "clpid": "Rosen-P-A" } ], "abstract": "We use seismic and geodetic data both jointly and separately to constrain coseismic slip from the 12 November 1996 M_w 7.7 and 23 June 2001 M_w 8.5 southern Peru subduction zone earthquakes, as well as two large aftershocks following the 2001 earthquake on 26 June and 7 July 2001. We use all available data in our inversions: GPS, interferometric synthetic aperture radar (InSAR) from the ERS-1, ERS-2, JERS, and RADARSAT-1 satellites, and seismic data from teleseismic and strong motion stations. Our two-dimensional slip models derived from only teleseismic body waves from South American subduction zone earthquakes with M_w > 7.5 do not reliably predict available geodetic data. In particular, we find significant differences in the distribution of slip for the 2001 earthquake from models that use only seismic (teleseismic and two strong motion stations) or geodetic (InSAR and GPS) data. The differences might be related to postseismic deformation or, more likely, the different sensitivities of the teleseismic and geodetic data to coseismic rupture properties. The earthquakes studied here follow the pattern of earthquake directivity along the coast of western South America, north of 5\u00b0S, earthquakes rupture to the north; south of about 12\u00b0S, directivity is southerly; and in between, earthquakes are bilateral. The predicted deformation at the Arequipa GPS station from the seismic-only slip model for the 7 July 2001 aftershock is not consistent with significant preseismic motion.", "doi": "10.1029/2006JB004294", "issn": "0148-0227", "publisher": "American Geophysical Union", "publication": "Journal of Geophysical Research B", "publication_date": "2007-03-17", "series_number": "B3", "volume": "112", "issue": "B3", "pages": "Art. No. B03307" }, { "id": "authors:zdcvq-jpc60", "collection": "authors", "collection_id": "zdcvq-jpc60", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20130612-140139779", "type": "book_section", "title": "Interferometric Synthetic Aperture Radar Geodesy", "book_title": "Treatise on Geophysics - Geodesy", "author": [ { "family_name": "Simons", "given_name": "M.", "orcid": "0000-0003-1412-6395", "clpid": "Simons-M" }, { "family_name": "Rosen", "given_name": "P. A.", "clpid": "Rosen-P-A" } ], "contributor": [ { "family_name": "Schubert", "given_name": "Gerald", "clpid": "Schubert-G" } ], "abstract": "Satellite-based interferometric synthetic aperture radar (InSAR) provides a synoptic high spatial resolution perspective of Earth's deforming surface, permitting one to view large areas quickly and efficiently. We review basic InSAR theory for geodetic applications and attempt to provide an overview of what processing and analysis schemes are currently used and a glimpse of what the future may hold. As part of this discussion, we present a biased view of what constitutes best practices for use of InSAR observations in geodetic modeling. Finally, we provide a basic primer on the ties between different mission design parameters and their relationship to the character of the resulting observations.", "doi": "10.1016/B978-044452748-6.00059-6", "isbn": "9780444527486", "publisher": "Elsevier", "place_of_publication": "Amsterdam", "publication_date": "2007", "pages": "391-446" }, { "id": "authors:2h08a-hwm68", "collection": "authors", "collection_id": "2h08a-hwm68", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20130611-140249735", "type": "article", "title": "Three-dimensional deformation caused by the Bam, Iran, earthquake and the origin of shallow slip deficit", "author": [ { "family_name": "Fialko", "given_name": "Yuri", "orcid": "0000-0002-6161-8467", "clpid": "Fialko-Y-A" }, { "family_name": "Sandwell", "given_name": "David", "clpid": "Sandwell-D" }, { "family_name": "Simons", "given_name": "Mark", "orcid": "0000-0003-1412-6395", "clpid": "Simons-M" }, { "family_name": "Rosen", "given_name": "Paul", "clpid": "Rosen-P-A" } ], "abstract": "Our understanding of the earthquake process requires detailed insights into how the tectonic stresses are accumulated and released on seismogenic faults. We derive the full vector displacement field due to the Bam, Iran, earthquake of moment magnitude 6.5 using radar data from the Envisat satellite of the European Space Agency. Analysis of surface deformation indicates that most of the seismic moment release along the 20-km-long strike-slip rupture occurred at a shallow depth of 4\u20135 km, yet the rupture did not break the surface. The Bam event may therefore represent an end-member case of the 'shallow slip deficit' model, which postulates that coseismic slip in the uppermost crust is systematically less than that at seismogenic depths (4\u201310 km). The InSAR-derived surface displacement data from the Bam and other large shallow earthquakes suggest that the uppermost section of the seismogenic crust around young and developing faults may undergo a distributed failure in the interseismic period, thereby accumulating little elastic strain.", "doi": "10.1038/nature03425", "issn": "0028-0836", "publisher": "Nature Publishing Group", "publication": "Nature", "publication_date": "2005-05-19", "series_number": "7040", "volume": "435", "issue": "7040", "pages": "295-299" }, { "id": "authors:ndtgj-ch648", "collection": "authors", "collection_id": "ndtgj-ch648", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20130611-132322065", "type": "article", "title": "Updated repeat orbit interferometry package released", "author": [ { "family_name": "Rosen", "given_name": "Paul A.", "clpid": "Rosen-P-A" }, { "family_name": "Hensley", "given_name": "Scott", "clpid": "Hensley-S" }, { "family_name": "Peltzer", "given_name": "Gilles", "clpid": "Peltzer-G" }, { "family_name": "Simons", "given_name": "Mark", "orcid": "0000-0003-1412-6395", "clpid": "Simons-M" } ], "abstract": "RO1_PAC V2.3, a Repeat Orbit Interferometry package that allows topographic and surface change researchers to apply Interferometric Synthetic Aperture Radar (InSAR) methods, is now freely available to the community InSAR is the synthesis of conventional SAR and interferometry techniques that have been developed over several decades in radio astronomy and radar remote sensing. In recent years, it has opened entirely new application areas for radar in the Earth system sciences, including topographic mapping and geodesy.\n\n\nRO1_PAC, developed primarily to work with European Remote Sensing (ERS) satellite radar data, currently supports ERS-1, ERS-2, and Japanese Earth Resources Satellite (JERS) radar data, and is configurable to work with \"strip-mode\" data from all existing satellite radar instruments. The first release of RO1_ PAC (V1.0) was made quietly in 2000, and roughly 30 groups in the academic and research community currently use it.", "doi": "10.1029/2004EO050004", "issn": "0096-3941", "publisher": "American Geophysical Union", "publication": "Eos", "publication_date": "2004-02-03", "series_number": "5", "volume": "85", "issue": "5", "pages": "47-47" }, { "id": "authors:xme9x-m6433", "collection": "authors", "collection_id": "xme9x-m6433", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20130611-083631113", "type": "article", "title": "Co-seismic slip from the 1995 July 30 M_w=8.1 Antofagasta, Chile, earthquake as constrained by InSAR and GPS observations", "author": [ { "family_name": "Pritchard", "given_name": "M. E.", "clpid": "Pritchard-M-E" }, { "family_name": "Simons", "given_name": "M.", "orcid": "0000-0003-1412-6395", "clpid": "Simons-M" }, { "family_name": "Rosen", "given_name": "P. A.", "clpid": "Rosen-P-A" }, { "family_name": "Hensley", "given_name": "S.", "clpid": "Hensley-S" }, { "family_name": "Webb", "given_name": "F. H.", "clpid": "Webb-F-H" } ], "abstract": "We analyse radar interferometric and GPS observations of the displacement field from the 1995 July 30 M_w= 8.1 Antofagasta, Chile, earthquake and invert for the distribution of slip along the co-seismic fault plane. Using a fixed fault geometry, we compare the use of singular-value decomposition and constrained linear inversion to invert for the slip distribution and find that the latter approach is better resolved and more physically reasonable. Separate inversions using only GPS data, only InSAR data from descending orbits, and InSAR data from both ascending and descending orbits without the GPS data illustrate the complimentary nature of GPS and the presently available InSAR data. The GPS data resolve slip near GPS benchmarks well, while the InSAR provides greater spatial sampling. The combination of ascending and descending InSAR data contributes greatly to the ability of InSAR to resolve the slip model, thereby emphasizing the need to acquire this data for future earthquakes. The rake, distribution of slip and seismic moment of our preferred model are generally consistent with previous seismic and geodetic inversions, although significant differences do exist. GPS data projected in the radar line-of-sight (LOS) and corresponding InSAR pixels have a root mean square (rms) difference of about 3 cm. Comparison of our predictions of vertical displacement and observed uplift from corraline algae have an rms of 10 cm. Our inversion and previous results reveal that the location of slip might be influenced by the 1987 M_w= 7.5 event. Our analysis further reveals that the 1995 slip distribution was affected by a 1988 M_w= 7.2 event, and might have influenced a 1998 M_w= 7.0 earthquake that occurred downdip of the 1995 rupture. Our slip inversion reveals a potential change in mechanism in the southern portion of the rupture, consistent with seismic results. Predictions of the satellite LOS displacement from a seismic inversion and a joint seismic/GPS inversion do not compare favourably with the InSAR observations.", "doi": "10.1046/j.1365-246X.2002.01661.x", "issn": "0956-540X", "publisher": "Royal Astronomical Society", "publication": "Geophysical Journal International", "publication_date": "2002-08", "series_number": "2", "volume": "150", "issue": "2", "pages": "362-376" }, { "id": "authors:6z5hb-kpg67", "collection": "authors", "collection_id": "6z5hb-kpg67", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20140415-112853279", "type": "article", "title": "Postseismic Rebound in Fault Step-Overs Caused by Pore Fluid Flow", "author": [ { "family_name": "Peltzer", "given_name": "Gilles", "clpid": "Peltzer-G" }, { "family_name": "Rosen", "given_name": "Paul", "clpid": "Rosen-P-A" }, { "family_name": "Rogez", "given_name": "Francois", "clpid": "Rogez-F" }, { "family_name": "Hudnut", "given_name": "Ken", "orcid": "0000-0002-3168-4797", "clpid": "Hudnut-K-W" } ], "abstract": "Near-field strain induced by large crustal earthquakes results in changes in pore fluid pressure that dissipate with time and produce surface deformation. Synthetic aperture radar (SAR) interferometry revealed several centimeters of postseismic uplift in pull-apart structures and subsidence in a compressive jog along the Landers, California, 1992 earthquake surface rupture, with a relaxation time of 270 \u00b1 45 days. Such a postseismic rebound may be explained by the transition of the Poisson's ratio of the deformed volumes of rock from undrained to drained conditions as pore fluid flow allows pore pressure to return to hydrostatic equilibrium.", "doi": "10.1126/science.273.5279.1202", "issn": "0036-8075", "publisher": "American Association for the Advancement of Science", "publication": "Science", "publication_date": "1996-08-30", "series_number": "5279", "volume": "273", "issue": "5279", "pages": "1202-1204" } ]