Web Server: Windows 2003, Apache, Tomcat, ArcIMS 9.1, Spatial Direct Data Server: Red Hat Linux, ArcSDE 9.NOAA Electronic Navigational Charts (NOAA ENC®) are in International Hydrographic Organization (IHO) S-57 format, which is the standard used for the exchange of digital hydrographic data.
#Noaa chart enc viewer download
Select Data Data is clipped, zipped and shippedġ6 Benefits Streamlines and expands access to NOAA ENC data for non-navigational use Visualization of NOAA ENCs online Access to multiple cohesive chart features-Soundings, Shipwrecks, Harbors, Marine Sanctuaries, Coastline, Landmarksġ7 Web Services Web Map Services and Web Feature ServicesĮliminate need for data download Data can be view directly through desktop GIS clients (ESRI clients only at the moment) and stacked with other web servicesġ8 ENC Direct Web Service viewed in ArcMap Layers are only visible at a particular scaleġ5 Data Download Choose data format, and spatial extent Zoom in Safe Software’s Feature Manipulation Engine (FME) used for data conversion Custom translation developed in house Converts S-57 to shapefile and ArcSDE Chart features are merged together to create seamless GIS layers from NOAA ENCsġ3 GIS layers of aggregated nautical features covering US watersĬontiguous information about Nautical Chart features available in GIS layers Example: ENC Direct coastline layer contains information from 400 ENCs of the same scale that have been glued together Over 200 GIS layers availableġ4 ENC Direct to GIS Layers have been symbolized to give a chart like display S-57 object classes have been organized into meaningful groups based on ESRI’s S-57 data model Layers have scale dependency to improve performance. Uses ESRI ArcIMS internet mapping service Data is available for download in GIS multiple formats through Spatial Direct online data transformation Download can be customized to fit user requirements Large Scale ENCs currently available Updated monthly to include new coverage and ENC updates
#Noaa chart enc viewer software
Over 180 object classes defined Each object has set of descriptive attributes Object classes encoded as acronyms Attributes encoded as acronyms and enumeration Includes attribute data types and value domainsĩ Using ENCs in GIS Rich structure of the object catalog requires the use of data decoders to make sense of information contained in S-57 Off the shelf GIS software packages do not support ENC in native S-57 format S-57 standard is complex and hard to fully integrate in GISġ1 ENC Direct Provides NOAA ENC data as online GIS General configuration of the sea bottom Water depths Aids to navigation Topographic aids to support navigation Used primarily as tool for safe navigationĦ Navigation Product: Electronic Navigational ChartsĮlectronic Navigational Charts (ENC) are databases of chart features used by navigation systems to produce a chart-like display.ħ What is S-57? International Hydrographic Organization (IHO) for Transfer Standard for Digital Hydrographic Data Uses International Standard Organization (ISO) 8211 file format Platform independent structure Provides a standard catalog for chart features ENC is a product specification for S-57Ĩ S-57 Object Catalog Chart features belong to object classes James Hawks and Matthew Austin NOS Office of Coast Survey Coast Survey Development LabĢ Introduction Background- Nautical Charts, ENCs, S-57ĮNC Direct to GIS Website Users Benefits Web Services Future Direction ConclusionĪ graphic depiction of the marine environmentĤ Nautical Charts Show: Nature and form of the coast
1 Creating a GIS from NOAA Electronic Navigational Charts