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With proper point selection, our method approximates uncompressed marine data using an over-determined system of linear equations based on, but essentially different from, the Laplacian partial differential equation. Then this approximation is refined via an error metric. These two steps work alternatively until a predefined satisfying approximation is found.<\/jats:p>\n          <jats:p>Using several different datasets and metrics, we demonstrate that our method has an excellent compression ratio. To further evaluate our method, we compare it with 3D-SPIHT. 3D-ODETLAP averages 20% better compression than 3D-SPIHT on our eight test datasets, from World Ocean Atlas 2005. Our method provides up to approximately six times better compression on datasets with relatively small variance. Meanwhile, with the same approximate mean error, we demonstrate a significantly smaller maximum error compared to 3D-SPIHT and provide a feature to keep the maximum error under a user-defined limit.<\/jats:p>","DOI":"10.1145\/1953102.1953104","type":"journal-article","created":{"date-parts":[[2011,3,8]],"date-time":"2011-03-08T14:52:22Z","timestamp":1299595942000},"page":"7-12","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":2,"title":["3D oceanographic data compression using 3D-ODETLAP"],"prefix":"10.1145","volume":"2","author":[{"given":"You","family":"Li","sequence":"first","affiliation":[{"name":"Rensselaer Polytechnic Institute (RPI), Troy, NY"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tsz-Yam","family":"Lau","sequence":"additional","affiliation":[{"name":"RPI, Troy, NY"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christopher S.","family":"Stuetzle","sequence":"additional","affiliation":[{"name":"RPI, Troy, NY"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Fox","sequence":"additional","affiliation":[{"name":"RPI, Troy, NY"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"W. 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