{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,28]],"date-time":"2026-02-28T06:36:20Z","timestamp":1772260580973,"version":"3.50.1"},"reference-count":56,"publisher":"Copernicus GmbH","issue":"5","license":[{"start":{"date-parts":[[2021,5,26]],"date-time":"2021-05-26T00:00:00Z","timestamp":1621987200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100007601","name":"Horizon 2020","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100007601","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Earth Syst. Sci. Data"],"abstract":"<jats:p>Abstract. The characterization of estuarine hydrodynamics primarily\ndepends on knowledge of the bathymetry and topography. Here, we present the\nfirst comprehensive, high-resolution dataset of the topography and\nbathymetry of the Amazon River estuary, the world's largest estuary. Our\nproduct is based on an innovative approach combining spaceborne remote\nsensing data, an extensive and processed river depth dataset, and auxiliary\ndata. Our goal with this mapping is to promote the database usage in studies\nthat require this information, such as hydrodynamic modeling or\ngeomorphological assessments. Our twofold approach considered 500\u2009000\nsounding points digitized from 19 nautical charts for bathymetry estimation,\nin conjunction with a state-of-the-art topographic dataset based on remote\nsensing, encompassing intertidal flats, riverbanks, and adjacent\nfloodplains. Finally, our estimate can be accessed in a unified 30\u2009m\nresolution regular grid referenced to the Earth Gravitational Model 2008 (EGM08), complemented both landward and\nseaward by land (Multi-Error-Removed\nImproved-Terrain digital elevation model, MERIT DEM) and ocean (General\nBathymetric Chart of the Oceans version 2020, GEBCO_2020) topographic data.\nExtensive validation against independent and spatially distributed data,\nfrom an airborne lidar survey, from ICESat-2 altimetric satellite data, and\nfrom various in\u00a0situ surveys, shows a typical vertical accuracy of\n7.2\u2009m (riverbed) and 1.2\u2009m (non-vegetated intertidal floodplains). The\ndataset is available at https:\/\/doi.org\/10.17632\/3g6b5ynrdb.2 (Fassoni-Andrade et al., 2021).<\/jats:p>","DOI":"10.5194\/essd-13-2275-2021","type":"journal-article","created":{"date-parts":[[2021,5,26]],"date-time":"2021-05-26T06:17:39Z","timestamp":1622009859000},"page":"2275-2291","source":"Crossref","is-referenced-by-count":24,"title":["Comprehensive bathymetry and intertidal topography of the Amazon estuary"],"prefix":"10.5194","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3233-8781","authenticated-orcid":false,"given":"Alice C\u00e9sar","family":"Fassoni-Andrade","sequence":"first","affiliation":[]},{"given":"Fabien","family":"Durand","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8915-094X","authenticated-orcid":false,"given":"Daniel","family":"Moreira","sequence":"additional","affiliation":[]},{"given":"Alberto","family":"Azevedo","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5038-4191","authenticated-orcid":false,"given":"Valdenira Ferreira","family":"dos Santos","sequence":"additional","affiliation":[]},{"given":"Claudia","family":"Funi","sequence":"additional","affiliation":[]},{"given":"Alain","family":"Laraque","sequence":"additional","affiliation":[]}],"member":"3145","published-online":{"date-parts":[[2021,5,26]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","unstructured":"Amante, C. 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