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The quasi\u2010geostrophic equations are used to describe a near\u2010axisymmetric vortex in the upper ocean, forced at its lower boundary by the isopycnal elevation of a moving meddy. The solution thus obtained provides a better approximation of the characteristics of meddy surface signals. The results show that in subtropics large meddies with dynamic radius \n<jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/jgrc20921-math-0001.png\" xlink:title=\"urn:x-wiley:21699275:media:jgrc20921:jgrc20921-math-0001\"\/>\u2009\u2265\u200930 km are always seen at the sea\u2010surface with AVISO altimetry, that medium\u2010size meddies with \n<jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/jgrc20921-math-0002.png\" xlink:title=\"urn:x-wiley:21699275:media:jgrc20921:jgrc20921-math-0002\"\/>\u2009=\u200920 km may be seen at the sea\u2010surface only if they are sufficiently shallow and strong, while small meddies with \n<jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/jgrc20921-math-0003.png\" xlink:title=\"urn:x-wiley:21699275:media:jgrc20921:jgrc20921-math-0003\"\/>\u2009=\u200910 km generally cannot be detected with the present accuracy of altimetry data. The intensity of meddy surface signals decreases to the south with the decrease of the \n<jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/jgrc20921-math-0004.png\" xlink:title=\"urn:x-wiley:21699275:media:jgrc20921:jgrc20921-math-0004\"\/> ratio. The seasonal variation in intensity of the surface signal for northern meddies (45\u00b0N) is on the order of 2\u20133 cm, but for subtropical meddies (35\u00b0N) it can be on the order of 5\u201310 cm. The radii of meddy surface signals range from 1 to 2 times the radii of the corresponding meddies. For most of the observed subtropical meddies, the upper limit should be used. Numerical experiments show that surface signals of meddies translated with \n<jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/jgrc20921-math-0005.png\" xlink:title=\"urn:x-wiley:21699275:media:jgrc20921:jgrc20921-math-0005\"\/>\u2010drift are efficiently dispersed by the radiation of Rossby waves. At the same time, for meddies translated by a background current, the surface signal does not show strong dissipation.<\/jats:p>","DOI":"10.1002\/2014jc010244","type":"journal-article","created":{"date-parts":[[2014,9,19]],"date-time":"2014-09-19T10:03:48Z","timestamp":1411121028000},"page":"7245-7266","source":"Crossref","is-referenced-by-count":20,"title":["Characteristics of surface signatures of Mediterranean water eddies"],"prefix":"10.1029","volume":"119","author":[{"given":"I.","family":"Bashmachnikov","sequence":"first","affiliation":[{"name":"Centro de Oceanografia, Faculdade de Ci\u00eancias, Universidade de Lisboa Lisboa Portugal"},{"name":"Departamento de Engenharia Geogr\u00e1fica, Geof\u00edsica e Energia Faculdade de Ci\u00eancias, Universidade de Lisboa Lisboa Portugal"},{"name":"Laboratory of Oceanography at the Institute of Earth Science of the St. Petersburg State University St. Petersburg Russia"}]},{"given":"X.","family":"Carton","sequence":"additional","affiliation":[{"name":"Laboratoire de Physique des Oc\u00e9ans, UMR 6523, Universit\u00e9 deBretagne Occidentale Brest France"}]},{"given":"T. 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