{"id":801,"date":"2014-02-24T14:00:07","date_gmt":"2014-02-24T14:00:07","guid":{"rendered":"http:\/\/blog.soton.ac.uk\/ggblog\/?p=801"},"modified":"2014-02-24T14:00:07","modified_gmt":"2014-02-24T14:00:07","slug":"fine-scale-gas-distribution-in-marine-sediments-assessed-from-deep-towed-seismic-data","status":"publish","type":"post","link":"https:\/\/blog.soton.ac.uk\/ggblog\/2014\/02\/fine-scale-gas-distribution-in-marine-sediments-assessed-from-deep-towed-seismic-data\/","title":{"rendered":"Fine-scale gas distribution in marine sediments assessed from deep-towed seismic data"},"content":{"rendered":"<p><a href=\"http:\/\/annuaire.ifremer.fr\/cv\/17027\/en\/\">Stephan Ker<\/a> from Ifremer (the French national institute for marine research) and co-authors including \u00a0<a href=\"http:\/\/www.southampton.ac.uk\/oes\/research\/staff\/gw1c09.page\">Graham Westbrook<\/a> and <a href=\"http:\/\/www.southampton.ac.uk\/oes\/research\/staff\/tmin.page\">Tim Minshull<\/a> from G&amp;G have published a paper in Geophysical Journal International that uses novel deep-towed seismic data and a novel technique to infer the detailed properties of gas pockets in marine sediments. \u00a0The seismic data were collected offshore Svalbard in the Arctic during a cruise led by Tim Minshull, using SYSIF, a new low-frequency Chirp profiling system developed by Ifremer. \u00a0These data show numerous high-amplitude reflectors, some with negative polarity (as expected for gas pockets) and some enigmatic ones with positive polarity. \u00a0Using a technique called the wavelet transform, the paper shows that the positive polarity reflectors can result from thin pockets of gas, while negative polarity reflectors may be associated with a patchy distribution of gas rather than a continuous gas body.<\/p>\n<p>To read the paper click <a href=\"http:\/\/gji.oxfordjournals.org\/content\/196\/3\/1466.full\">here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Stephan Ker from Ifremer (the French national institute for marine research) and co-authors including \u00a0Graham Westbrook and Tim Minshull from G&amp;G have published a paper in Geophysical Journal International that uses novel deep-towed seismic data and a novel technique to infer the detailed properties of gas pockets in marine sediments. \u00a0The seismic data were collected&hellip; <a class=\"more-link\" href=\"https:\/\/blog.soton.ac.uk\/ggblog\/2014\/02\/fine-scale-gas-distribution-in-marine-sediments-assessed-from-deep-towed-seismic-data\/\">Read More <span class=\"screen-reader-text\">Fine-scale gas distribution in marine sediments assessed from deep-towed seismic data<\/span><\/a><\/p>\n","protected":false},"author":93323,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[493988,78047,517518,328889,493990],"tags":[493980,494084],"class_list":["post-801","post","type-post","status-publish","format-standard","hentry","category-blog-roll","category-fieldwork","category-publications","category-research-projects","category-science-cruises","tag-seismic","tag-sysif"],"_links":{"self":[{"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/posts\/801","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/users\/93323"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/comments?post=801"}],"version-history":[{"count":1,"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/posts\/801\/revisions"}],"predecessor-version":[{"id":802,"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/posts\/801\/revisions\/802"}],"wp:attachment":[{"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/media?parent=801"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/categories?post=801"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/tags?post=801"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}