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Marine/Coastal GIS | Data & Image Portals (includes Metadata Catalogs and Atlases)

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Open Geospatial Consortium: Ocean Scientists Embrace Ocean Standards

Abu Dhabi Coastal Atlas
African Marine Atlas
Alaska ShoreZone Coastal Mapping and Imagery
Arctic Marine Synthesis: Atlas of the Chukchi and Beaufort Seas
auSEABED and dbSEABED (Australian GIS/Database Structure for Offshore Soils)
     Google Earth version
Australian Coastal Atlas
Australian Marine Spatial Information System (AMSIS)
Baltic Sea Bathymetry Database Baja to Bering Data Compilation (Marine Conservation Biology Institute or MCBI)
Benthic Habitat Atlas of Coastal Texas
Blue Habitats (global seafloor geomorphic features)
BlueNet, the Australian Marine Science Data Network
British Columbia Pacific Coastal Resources Atlas
California Geoportal (including Coastal Viewer)
California State University System Coastal Data
CoastAlaska.net (over 20,000 km of low-tide shoreline imagery)
CoastalManagement.com (use their SEARCH to find "GIS" on their site)
CoastWeb (use their SEARCH to find articles on GIS, data, etc.)
Conservation Assessment of West Coast Estuaries
Digital Coast: Legislative Atlas (formerly the Ocean Planning Information System or OPIS)
Digital Ocean: Nautical Charts for purchase (especially for Canada)
Data Integration Visualization Exploration and Reporting (DIVER) Explorer
Ecosystem-Based Management (EBM) Data
Endeavour Segment GIS
Environmental Marine Information System for Europe (EMIS)
Environmental Response Management Application (ERMA)
Esri Ocean Basemap
European Atlas of the Seas
EU-SEASED (seafloor/seabed samples)
Fagatele Bay National Marine Sanctary GIS (American Samoa)
G.COAST - Geo Coastal Network Explorer
GCOOS Data Portal (Gulf of Mexico Coastal and Ocean Observing System)
GeoConnections Canada
Geological Survey of Ireland (GSI) Interactive Web Data Delivery System (IWDDS)
GISFish (aquaculture and inland fisheries)
Global Change Master Directory (GCMD)
Global Maritime Data (General Dynamics) - Maritime Boundaries, Ports, Shoreline, Shipwrecks
Global Offshore Wind Farms Database (4C)
Global Shoreline/Coastline Data (most accurate data set available now at 1:100K; High Water Line only, NOAA and National Geospatial-Intelligence Agency)
GlobWave (altimeter and SAR satellite data on ocean waves, netCDF)
GRASS visualizations, Doubtful Sound, New Zealand (temporary site of Hamish Bowman, University of Otago, New Zealand)
Gulf of Mexico Alliance Map Viewer
Hawaii Bathymetry Service IODE Ocean Data Portal Lake Tahoe GIS MAGIC: Coastal and Marine Resource Atlas (UK) MAGIS (Maps, Aerials, and GIS, University of Hawaii-Manoa) MPAtlas: Explore global marine protected areas, Marine Conservation Institute MarineBIOS (CA Dept of Fish and Game, CMSP, MPAs)
Marine Data Literacy Project (Murray Brown)
Marine Data Online (Marine Institute, Ireland) MarineExplore MarineGIS.com
MARIS: MArine Information Service (The Netherlands)
MEDIN: Marine Environmental Data and Information Network (UK) Mid-Atlantic Regional Council on the Ocean (MARCO) MORIS (Massachussetts Ocean Resource information System)
Multipurpose Marine Cadastre
NANOOS Visualization System (NVS)
Northeast Ocean Data Portal
     NVS portal to Puget Sound Regional Synthesis Model (PRISM) Cruise Data
NGDC Index to Marine & Lacustrine Geological Samples
Natural Resources Canada
Naval Oceanographic Office (NavOceanO)
NIMA Digital Nautical Charts
NOAA BIOMapper (Biogeography Intergrated Online Mapper) for St. John's, VI
NOAA Coastal Assessment and Data Synthesis System
NOAA Coastal Shoreline
NOAA Digital Vector Shoreline
NOAA Gulf Oil Spill Response Interactive Map Portal
NOAA Lake Level Viewer
NOAA Nautical Charts
NOAA National Geophysical Data Center (NGDC) DEM Discovery Portal
NOAA NGDC Bathymetry Data Viewer (powered by ArcGIS 10 Server)

Provides discovery and delivery of all the NOAA and non-NOAA bathymetric data and derived digital elevation models archived and delivered by NGDC. The viewer includes NOS Hydrographic Survey data, non-hydrographic NOAA bathymetric data, bathymetric data from the U.S. academic fleet, and international bathymetric track line data. It is based on ArcGIS Server 10 and is significantly faster and more responsive than the old individual map servers. You can select from several different backgrounds and each survey is color coded by year (see Legend). When you select an area, an "additional information box" launches with the survey name, survey attributes, and a link to acquire the data. Upcoming developments include the ability to switch to an Arctic map projection, the addition of advanced search and filter tools, and seamless scrolling around the world.

NOAA NOS Hydrographic Database (NOSHDB)
NOAA NOS Data Explorer
NOAA NGDC Tsunami Inundation Grids/DEMs
NOAA Sea Level Rise Viewer
NOAA's State of the Coast
North Carolina Coastal Hazards Decision Portal
OBIS (Ocean Biogeographic Information System)
      OBIS-SEAMAP (OBIS-Spatial Ecological Analysis of Megavertebrate Populations)
      MedOBIS (Mediterranean Biogeographic Information System)
      OBIS via NBII
      Biodiversity of the Gulf of Mexico Database (BioGoMx) in OBIS
Ocean GeoPortal (Smithsonian, pdf file)
Ocean Globe Project (International Underwater Exploration and Information Service, Joe Breman)
Oregon Coastal Atlas
Oregon Coast Geospatial Clearinghouse
Oregon North Coast Explorer
OzCoasts (Geoscience Australia)
Pacific Islands Benthic Habitat Mapping Center (PIBMHC)
     PIBMHC Cruise Catalog
PaCOOS: West Coast Habitat Portal (includes Oregon nearshore bathymetry, Oregon continental shelf bathymetry)
PacIOOS Voyager Bathy data
Protected Areas GIS (PAGIS, National Marine Sanctuaries)
San Diego Marine Information System (SDMIS)
Sea Around Us Project (global fisheries, EEZs, high seas, large marine ecosystems, expeditions & surveys)
Seafloor Mapping Lab, Cal-State Monterey Bay (California Nearshore and Continental Shelf Bathy, Backscatter, Habitat)
Sea Level Rise Data (California, Pacific Institute)
SeaView Data Portal | Eos article
Shore and Sea Boundaries (NOAA Office of Coast Survey)
Texas Coast Seamless Topo/Bathymetry (comments to Troy Holcombe, tholcombe@ocean.tamu.edu)
UN Atlas of the Oceans
USGS Coastal and Nearshore LIDAR
USGS Coastal Vulnerability to Sea Level Rise
VENTS Data Sets/GIS
Virginia's Coastal GEMS (data, maps, laws and policies, and more
Washington Coastal Atlas
WCGA West Coast Ocean Data Portal
World Database on Protected Areas (including marine protected areas or MPAs)