{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T13:37:35Z","timestamp":1786628255450,"version":"build-2736575974"},"reference-count":16,"publisher":"Acoustical Society of America (ASA)","issue":"8","license":[{"start":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T00:00:00Z","timestamp":1786579200000},"content-version":"vor","delay-in-days":12,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/100000006","name":"Office of Naval Research","doi-asserted-by":"publisher","award":["N00014-23-1-2747"],"award-info":[{"award-number":["N00014-23-1-2747"]}],"id":[{"id":"10.13039\/100000006","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2026,8,1]]},"abstract":"<jats:p>In pulse-echo sonar, the temporal coherence of echoes from the seafloor can provide an acoustic means to observe subtle long- or short-term changes in the seabed. Measurements of scattering from a seabed composed of sand, clay, and gravel in the Gulf of Maine were made over a period of 8 months. A parametric estimation approach, using a piecewise exponential function, is described and applied to the data to more accurately estimate nonstationary decorrelation rates. This approach may aid in quantifying and describing the rate of change in seafloors with mixed composition and in complex ocean environments with multiple forcing mechanisms.<\/jats:p>","DOI":"10.1121\/10.0044873","type":"journal-article","created":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T13:03:31Z","timestamp":1786626211000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":0,"title":["Estimation of decorrelation rates of scattering from a heterogeneous seafloor"],"prefix":"10.1121","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6672-1562","authenticated-orcid":false,"given":"Thomas E.","family":"Blanford","sequence":"first","affiliation":[{"name":"Center for Acoustics Research and Education, University of New Hampshire , Durham, New Hampshire 03824,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8175-3554","authenticated-orcid":false,"given":"Jenna","family":"Hare","sequence":"additional","affiliation":[{"name":"Center for Acoustics Research and Education, University of New Hampshire , Durham, New Hampshire 03824,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0559-3645","authenticated-orcid":false,"given":"Anthony P.","family":"Lyons","sequence":"additional","affiliation":[{"name":"Center for Acoustics Research and Education, University of New Hampshire , Durham, New Hampshire 03824,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-0865-923X","authenticated-orcid":false,"given":"Hailey L.","family":"Gilman","sequence":"additional","affiliation":[{"name":"Center for Acoustics Research and Education, University of New Hampshire , Durham, New Hampshire 03824,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8434-297X","authenticated-orcid":false,"given":"Gabriel R.","family":"Venegas","sequence":"additional","affiliation":[{"name":"Center for Acoustics Research and Education, University of New Hampshire , Durham, New Hampshire 03824,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"231","published-online":{"date-parts":[[2026,8,13]]},"reference":[{"key":"2026081308453817700_c1","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1007\/s11001-018-9342-y","article-title":"Analysis of calibrated seafloor backscatter for habitat classification methodology and case study of 158 spots in the Bay of Biscay and Celtic Sea","volume":"39","year":"2018","journal-title":"Mar. Geophys. Res."},{"issue":"4","key":"2026081308453817700_c2","doi-asserted-by":"publisher","first-page":"2727","DOI":"10.1121\/10.0030464","article-title":"Measurements of temporal variability of acoustic scattering from the seafloor in shallow-water sandy sites","volume":"156","year":"2024","journal-title":"J. Acoust. Soc. Am."},{"issue":"4","key":"2026081308453817700_c3","doi-asserted-by":"publisher","first-page":"407","DOI":"10.1109\/JOE.2009.2021287","article-title":"Acoustic observation of the time dependence of the roughness of sandy seafloors","volume":"34","year":"2009","journal-title":"IEEE J. Oceanic Eng."},{"key":"2026081308453817700_c4","doi-asserted-by":"publisher","first-page":"212","DOI":"10.1007\/BF01204511","article-title":"High-frequency acoustic observations of benthic spatial and temporal variability","volume":"16","year":"1996","journal-title":"Geo-Mar. Lett."},{"issue":"1","key":"2026081308453817700_c5","doi-asserted-by":"publisher","first-page":"91","DOI":"10.1109\/JOE.2012.2209231","article-title":"The impact of the temporal variability of seafloor roughness on synthetic aperture sonar repeat\u2013pass interferometry","volume":"38","year":"2013","journal-title":"IEEE J. Oceanic Eng."},{"issue":"10","key":"2026081308453817700_c6","doi-asserted-by":"publisher","first-page":"1221","DOI":"10.1016\/0278-4343(94)90035-3","article-title":"Spatial and temporal variation of acoustic backscatter in the stress experiment","volume":"14","year":"1994","journal-title":"Cont. Shelf Res."},{"issue":"21","key":"2026081308453817700_c7","doi-asserted-by":"publisher","first-page":"e12834","DOI":"10.1049\/ell2.12834","article-title":"Exploitation of SAS interferometric phase statistics for coherent change detection","volume":"59","year":"2023","journal-title":"Electron. Lett."},{"issue":"2","key":"2026081308453817700_c8","doi-asserted-by":"publisher","first-page":"317","DOI":"10.1111\/2041-210X.14261","article-title":"Quantitative processing of broadband data as implemented in a scientific split-beam echosounder","volume":"15","year":"2024","journal-title":"Methods Ecol. Evol."},{"key":"2026081308453817700_c9","volume-title":"The International Thermodynamic Equation of Seawater \u2013 2010: Calculation and Use of Thermodynamic Properties","author":"IOC, SCOR, and IAPSO","year":"2010"},{"issue":"4","key":"2026081308453817700_c10","doi-asserted-by":"publisher","first-page":"1330","DOI":"10.1109\/JOE.2021.3060812","article-title":"Spatial coherence of speckle for repeat-pass synthetic aperture sonar micronavigation","volume":"46","year":"2021","journal-title":"IEEE J. Oceanic Eng."},{"issue":"4","key":"2026081308453817700_c11","doi-asserted-by":"publisher","first-page":"388","DOI":"10.1109\/TAU.1973.1162487","article-title":"Statistics of the estimate of the magnitude-coherence function","volume":"21","year":"1973","journal-title":"IEEE Trans. Audio Electroacoust."},{"issue":"4","key":"2026081308453817700_c12","doi-asserted-by":"publisher","first-page":"1280","DOI":"10.1109\/JOE.2023.3297229","article-title":"A comparison of two methods for simulating spatial coherence-based motion estimation","volume":"48","year":"2023","journal-title":"IEEE J. Oceanic Eng."},{"issue":"2","key":"2026081308453817700_c13","doi-asserted-by":"publisher","first-page":"461","DOI":"10.1214\/AOS\/1176344136","article-title":"Estimating the dimension of a model","volume":"6","year":"1978","journal-title":"Ann. Statist."},{"issue":"4","key":"2026081308453817700_c14","doi-asserted-by":"publisher","first-page":"1552","DOI":"10.1121\/1.4892752","article-title":"Estimating seabed scattering mechanisms via Bayesian model selection","volume":"136","year":"2014","journal-title":"J. Acoust. Soc. Am."},{"issue":"11","key":"2026081308453817700_c15","doi-asserted-by":"publisher","first-page":"2044","DOI":"10.1049\/rsn2.12608","article-title":"Model selection techniques for seafloor scattering statistics in synthetic aperture sonar images of complex seafloors","volume":"18","year":"2024","journal-title":"IET Radar. Sonar Navi."},{"issue":"4","key":"2026081308453817700_c16","doi-asserted-by":"publisher","first-page":"451","DOI":"10.1109\/JOE.2008.2008410","article-title":"High-frequency scattered envelope statistics of patchy seafloors","volume":"34","year":"2009","journal-title":"IEEE J. Oceanic Eng."}],"container-title":["JASA Express Letters"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.aip.org\/asa\/jel\/article-pdf\/doi\/10.1121\/10.0044873\/21106394\/086002_1_10.0044873.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/pubs.aip.org\/asa\/jel\/article-pdf\/doi\/10.1121\/10.0044873\/21106394\/086002_1_10.0044873.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T13:03:32Z","timestamp":1786626212000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.aip.org\/jel\/article\/6\/8\/086002\/3401104\/Estimation-of-decorrelation-rates-of-scattering"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8,1]]},"references-count":16,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2026,8,1]]}},"URL":"https:\/\/doi.org\/10.1121\/10.0044873","relation":{},"ISSN":["2691-1191"],"issn-type":[{"value":"2691-1191","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2026,8]]},"published":{"date-parts":[[2026,8,1]]},"article-number":"086002"}}