{
"USGS Publications Warehouse": { "@context": "https://schema.org", "@type": "Article", "additionalType": "Journal Article", "name": "Seismic detection and analysis of icequakes at Columbia Glacier, Alaska", "identifier": [ { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse IndexID", "value": "70174313", "url": "https://pubs.usgs.gov/publication/70174313" }, { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse Internal ID", "value": 70174313 }, { "@type": "PropertyValue", "propertyID": "DOI", "value": "10.1029/2006JF000595", "url": "https://doi.org/10.1029/2006JF000595" } ], "journal": { "@type": "Periodical", "name": "Journal of Geophysical Research", "volumeNumber": "112", "issueNumber": "F3" }, "inLanguage": "en", "isPartOf": [ { "@type": "CreativeWorkSeries", "name": "Journal of Geophysical Research" } ], "datePublished": "2007", "dateModified": "2016-07-07", "abstract": "Contributions to sea level rise from rapidly retreating marine-terminating glaciers are large and increasing. Strong increases in iceberg calving occur during retreat, which allows mass transfer to the ocean at a much higher rate than possible through surface melt alone. To study this process, we deployed an 11-sensor passive seismic network at Columbia Glacier, Alaska, during 2004\u20132005. We show that calving events generate narrow-band seismic signals, allowing frequency domain detections. Detection parameters were determined using direct observations of calving and validated using three statistical methods and hypocenter locations. The 1\u20133 Hz detections provide a good measure of the temporal distribution and size of calving events. Possible source mechanisms for the unique waveforms are discussed, and we analyze potential forcings for the observed seismicity.", "publisher": { "@type": "Organization", "name": "AGU" }, "author": [ { "@type": "Person", "name": "O'Neel, Shad soneel@usgs.gov", "givenName": "Shad", "familyName": "O'Neel", "email": "soneel@usgs.gov", "identifier": { "@type": "PropertyValue", "propertyID": "ORCID", "value": "0000-0002-9185-0144", "url": "https://orcid.org/0000-0002-9185-0144" }, "affiliation": [ { "@type": "Organization", "name": "Alaska Climate Science Center", "url": null }, { "@type": "Organization", "name": "Washington Water Science Center", "url": "https://www.usgs.gov/centers/washington-water-science-center" }, { "@type": "Organization", "name": "Alaska Science Center", "url": "https://www.usgs.gov/centers/alaska-science-center" }, { "@type": "Organization", "name": "Alaska Science Center Water", "url": "https://www.usgs.gov/centers/alaska-science-center" } ] }, { "@type": "Person", "name": "Marshall, Hans P.", "givenName": "Hans P.", "familyName": "Marshall" }, { "@type": "Person", "name": "McNamara, Daniel E. mcnamara@usgs.gov", "givenName": "Daniel E.", "familyName": "McNamara", "email": "mcnamara@usgs.gov", "identifier": { "@type": "PropertyValue", "propertyID": "ORCID", "value": "0000-0001-6860-0350", "url": "https://orcid.org/0000-0001-6860-0350" }, "affiliation": [ { "@type": "Organization", "name": "Geologic Hazards Science Center", "url": "https://www.usgs.gov/centers/geologic-hazards-science-center" } ] }, { "@type": "Person", "name": "Pfeffer, William Tad", "givenName": "William Tad", "familyName": "Pfeffer" } ], "funder": [ { "@type": "Organization", "name": "Alaska Science Center", "url": "https://www.usgs.gov/centers/alaska-science-center" } ] }
}