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11 th International Symposium for GIS and Computer Cartography for Coastal Zones ManagementFigure 1. Screenshot of the “Marine Regions”, displaying the placedetails, relations, boundaries and download links of theAlaskan part of the US Exclusive Economic Zone.128
11 th International Symposium for GIS and Computer Cartography for Coastal Zones ManagementContent of Marine RegionsAt the moment Marine Regions lists and provides geographical information and relations on more than 32,604place names, representing 25,487 marine geographic places. The number of records is an approximate value basedon the database on January 15th, 2013. We can distinguish three different categories of information: regionalchecklists, global checklists and global or regional spatial marine classifications. The regional checklists includedetailed information from the North Sea, the Black Sea and the Antarctic region. The main global checklistsintegrated in Marine Regions are the IHO-IOC GEBCO Gazetteer of undersea feature names, marine place namesfrom the Aquatic Sciences and Fisheries Abstracts (ASFA) thesaurus and several distribution records from theWorld Register of Marine Species. Marine Regions gives access to 12 marine geographic regional or global marineclassifications including the boundaries of the major oceans and seas of the world, defined by the InternationalHydrographic Organisation (IHO), the Large Marine Ecosystems of the World, the Longhurst BiogeographicalProvinces or the Marine Ecoregions of the World. The database contains also 5,597 polygons of geographic places.Marine Regions also gives access to the database of the Exclusive Economic Zones of the world making themavailable to the scientific community. As this information was not freely available, two global GIS covers, containingthe lines of the maritime boundaries of countries and the polygons of the EEZs have been calculated. The firststep in the creation of the geodatabase was the integration of information already available. In a second phase thedatabase of negotiated treaties from the United Nations Convention on the Law of the Sea (UNCLOS) was consultedand imported into a GIS. The geographic coordinates from the documents were converted to decimal degrees andimported into a database. If no treaty was available from UNCLOS, the 200 nautical mile buffer around a countrywas calculated. If the distance between two countries was less than 400 nautical miles, the maritime boundary wascalculated as the median line between both countries (UN DOALOS, 2000).UsersThe web statistics and downloads of the system have been monitored since 2008. Between 2008-11-19 and 2013-01-05 18,967 shapefiles were downloaded, with 2,584 downloads in 2009, and 6,294 downloads in 2012. Thesestatistics do not include the downloads or consultation of the geographic objects through the available WMS or WFSservices, as these services are more difficult to monitor. In January 2013 the website received 90,284 hits from 3,602unique visitors.We analysed the purpose of download of 8,336 downloads between 2008-11-19 and 2012-03-30. This represents44% of the total recorded downloads between 2008-11-19 and 2013-01-05. The reason for download is a requiredbut free text field when a GIS layer is downloaded from Marine Regions. We grouped the various reasons for downloadinto different categories. Most of the downloads were performed for research purposes (33.9%) with the maindisciplines being oceanography (22.2%), environmental and biodiversity sciences (7.3%) and political and economicgeography (4.2%). In 2.7% of the cases the data was used for standardization purposes in marine data management.These two categories constitute the reasons for which Marine Regions was developed but represent less than half oftotal downloads. Over 21% of the geographic information was downloaded for specific purposes related to differentmarine and maritime activities including fisheries (5.4%), offshore exploration (5.4%), maritime transport and cruiseplanning (4.2%), marine management and marine spatial planning (3.7%), surveillance (1.0%), military use (0.9%)or risks assessments (0.6%). The data was also extensively used for educational or visualization purposes (26.0%).In 3.6% of cases, added products were created out of the geographic data, for example incorporation of the geographicdata in an online coastal or marine atlas. Finally unknown reasons and other specific reasons like press releasesor artist impressions constituted 12.7% of the downloads.ChallengesMarine Regions is the result of an initiative that started in 2006. During the last six years, several new geographicinformation systems available on the web have been initiated, developed or even stopped existing. This constantevolution in web resources and technologies makes the creation of a system flexible enough to cope with new technologiesnecessary. For example, in 2009 the mapping technology was switched from a MapServer and a Java Rosaapplet to a GeoServer and OpenLayers library to display and render the maps. However the core database, storingthe geographic objects information and relations, has not changed much since its early developments. It is by delib-129
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CoastGIS Conference 2013: Monitorin
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Sponsors
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Steering Committee Secretariat main
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Santos Basin, BrazilA.F. Romero, R.
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Coastline development and associate
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Visual resource management system f
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11 th International Symposium for G
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Use of Terrestrial-LiDAR for quanti
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Community beach monitoring: utilisi
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Data policy implications arising fr
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Global ocean observing system for w
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ResultsMetadata11 th International
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Coastal vulnerability index to glob
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generating probabilities contours f
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maps, the most critical conditions
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Statistical and spatial toolbox for
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Global oceans and marine planning
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Analysis11 th International Symposi
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Building scenarios and visualizatio
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Using a 3D physics-based visualizat
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Documenting situated tsunami risk p
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Page 94 and 95: A structured model to enable coasta
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Methods11 th International Symposiu
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Methods11 th International Symposiu
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Acknowledgments11 th International
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Long-term continuous observations o
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Comparing endmember extraction meth
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Integration of scientific data as a
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Conclusions11 th International Symp
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