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2526a42b85704b7b9e74d565b5ecd397
2021-03-17
https://data-portal.internal-gis.unep-wcmc.org/server/rest/services/VLIZ_007_LonghurstBiogeographicalProvinces_2010/MapServer
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VLIZ - Longhurst Biogeographical Provinces 2010
<div>The dataset represents the division of the world oceans into provinces as defined by Longhurst (1995; 1998; 2006). The division has been based on the prevailing role of physical forcing as a regulator of phytoplankton distribution. The dataset contains the initial static boundaries developed at the Bedford Institute of Oceanography, Canada. Note that the boundaries of these provinces are not fixed in time and space, but are dynamic and move under seasonal and interannual changes in physical forcing. At the first level of reduction, Longhurst recognised four principal biomes: the Polar biome, the Westerlies biome, the Trade winds biome, and the Coastal biome. These four biomes are recognised in every major ocean basin. At the next level of reduction, the ocean basins are divided into provinces, roughly ten for each basin. These regions provide a template for data analysis or for making parameter assignments on a global scale. Please refer to Longhurst's publications when using these shapefiles.<br /></div><div><span style=''><br /></span></div><div><span style=''>A summary table has been prepared by Mathias Taeger and David Lazarus, </span><a href='http://www.vliz.be/en/imis?module=institute&insid=5838' target='_blank'><span style=''>Museum für Naturkunde, Berlin</span></a><span style=''> (2010-03-26). This table makes it easier to relate the classification of Longhurst to the original quantitative parameters used to create it. Productivity values are from the table in Longhurst, 1995, Chlorophyll values; photic depth and mixed layer depth originate from graphs in Longhurst, 1998. The sea temperature at 0 and 50 m are from the World Ocean Atlas (2005), average values were calculated in ArcGIS. Each parameter value was set into 5 equal intervals.</span><a><span style=''></span></a><span style=''></span><br /><br /></div><div><br /></div><div><span style='font-weight:bold;'><span style=''>References:</span><span style=''><br /></span></span></div><ul><li>Longhurst, A.R et al. (1995). An estimate of global primary <br />production in the ocean from satellite radiometer data. J. Plankton Res.<br /> 17, 1245-1271 </li><li>Longhurst, A.R. (1995). Seasonal cycles of pelagic production and consumption. Prog. Oceanogr. 36, 77-167</li><li>Longhurst, A.R. (1998). Ecological Geography of the Sea. Academic Press, San Diego. 397p. (<a href='http://www.vliz.be/en/imis?module=ref&refid=11061' target='_blank'>IMIS</a>)</li><li>Longhurst, A.R. (2006). Ecological Geography of the Sea. 2nd Edition. Academic Press, San Diego, 560p.</li></ul>
Longhurst Biogeographical Provinces - A partition of the world oceans into provinces as defined by Longhurst
Flanders Marine Institute (2009). Longhurst Provinces. Available online at https://www.marineregions.org/. Consulted on [YYYY-MM-DD]
unep-wcmc
VLIZ
ocean-provinces
marine-regions
<p class="MsoNormal">The Flanders Marine Institute manages Marine Regions, but is aware that it is not complete and undoubtedly contains errors. The Flanders Marine Institute cannot be made responsible for any errors or misuse of data contained in this register. Comments from our users are more than welcome, so if you come across any error or incomplete information or you are willing to contribute to this initiative please contact us.The data is provided "as is", and no warranty express, implied or otherwise is offered as to the data's accuracy. The developers do not imply any opinion concerning the legal status of any country, territory or area, or concerning the delimitation of its frontiers or boundaries. The data can be used for educational, scientific or research purposes but should not be used for legal, commercial/economical (exploration of natural resources), military or navigational purposes.</p><p class="MsoNormal">Anyone can download this data but it is for the sole use of the organization or individual downloading the data. The geodata may not be redistributed without the permission of the Flanders Marine Institute (VLIZ). The geodata may be used in a Value-Added Software Application (like web services), on condition that the Flanders Marine Institute is acknowledged as the source of the data.</p><p class="MsoNormal">Redistribution rights are granted for hard-copy renditions or static, electronic map images (e.g., jpeg, gif, etc.) that are plotted, printed or publicly displayed with reference to the Flanders Marine Institute. For redistribution rights of derived products, please contact us at info@marineregions.org</p>
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