Spatial coverage index compiled by East View Geospatial of set "Canada Nautical Charts (ENC) ". Source data from CHS (publisher). Type: Nautical. Scale: Varies. Region: North America.

Map of Canada showing locations of facilities selling nautical charts in both paper and digital formats.

Map of Canada showing locations of facilities selling nautical charts in both paper and digital formats.

Canadian Hydrographic Service (CHS) has made available all the publishable limits of modern day surveys whose data has been collected since 1989.

This service provides a compilation of Electronic Navigational Charts (ENC) produced by the Canadian Hydrographic Service. All information provided by this service conforms to the International Hydrographic Organization (IHO) Publication S-57. An ENC contains all the chart information useful for navigation, and may contain supplementary information in addition to that contained in the paper chart. This service is not for navigation.

Market Size and Growth: The global market for Digital Nautical Charts is projected to reach a value of XXX million USD by 2033, growing at a CAGR of XX% during the forecast period of 2025-2033. The increasing adoption of electronic navigation systems in commercial shipping, rescue operations, marine research, and other maritime activities is a key driver of market growth. Additionally, the growing demand for accurate and real-time navigation data, advancements in technology, and the need for efficient and safe maritime operations further contribute to the market's expansion. Market Trends and Segmentation: Key trends in the Digital Nautical Charts market include the adoption of augmented reality (AR) and artificial intelligence (AI) for enhanced navigation, the development of hybrid charts that combine raster and vector data, and the increasing integration of sensor data from various sources. The market is segmented based on type (raster and vector charts) and application (commercial shipping, rescue at sea, marine research, marine energy development, water sports, and recreation). Major companies in the market include MaxSea International, PC Maritime, Canadian Hydrographic Service, C-MAP, Navionics, Voyager Worldwide, ArcMap, NV Charts, Lowrance, Suisca Group, NOAA ENC, Xinuo Information Technology, Zhejiang Haitu, among others. The market is expected to witness significant growth in the Asia Pacific region due to the increasing maritime trade and investment in infrastructure development.

NOAA is responsible for depicting on its nautical charts the limits of the 12 nautical mile Territorial Sea, 24 nautical mile Contiguous Zone, and 200 nautical mile Exclusive Economic Zone (EEZ). The outer limit of each of these zones is measured from the U.S. normal baseline, which coincides with the low water line depicted on NOAA charts and includes closing lines across the entrances of legal bays and rivers, consistent with international law. The U.S. baseline and associated maritime limits are reviewed and approved through the interagency U.S. Baseline Committee, which is chaired by the U.S. Department of State. The Committee serves the function of gaining interagency consensus on the proper location of the baseline using the provisions of the 1958 Convention on the Territorial Sea and the Contiguous Zone, to ensure that the seaward extent of U.S. maritime zones do not exceed the breadth that is permitted by international law. In 2002 and in response to mounting requests for digital maritime zones, NOAA launched a project to re-evaluate the U.S. baseline in partnership with other federal agencies via the U.S. Baseline Committee. The focus of the baseline evaluation was NOAA's largest scale, most recent edition nautical charts as well as supplemental source materials for verification of certain charted features. This dataset is a result of the 2002-present initiative and reflects a multi-year iterative project whereby the baseline and associated maritime limits were re-evaluated on a state or regional basis. In addition to the U.S. maritime limits, the U.S. maritime boundaries with opposite or adjacent countries as well as the US/Canada International Boundary (on land and through the Great Lakes) are also included in this dataset.

The Canadian Hydrographic Service (CHS) Low Water Mark Lines provide alongshore and across-shore geomorphological and biological attributes of the low water mark shoreline. The lines are used in the CHS nautical charts to represent the level reached by sea water at low tide.

Contained within the 1st Edition (1906) of the Atlas of Canada is a map that shows the lighthouses and sailing routes on the Atlantic Coast. The map shows sailing routes and a table listing the distance, in miles, from Halifax, Montreal and Quebec to major ports. Although Newfoundland and Labrador was not a part of Canada in 1906, there is some data shown for this region. The lighthouses are distinguished between fixed, revolving lights, and light ships. The depth of water in the Great Lakes is indicated by contours and tints of blue. The deeper portions are shown in the darker tints, while lighter tints indicate more shallow waters.

*** Unfortunately, the release of the updated CHS NONNA has been delayed due to a significant database transformation. Once the CHS NONNA have been updated, an announcement note will be published here. We appreciate your continued patience.*** To directly access the CHS NONNA Data Portal please follow this link - https://data.chs-shc.ca/login (Note - The portal is NOT compatible with Internet Explorer browser). New users of the CHS NONNA Data Portal are encouraged to fully review the 'CHS NONNA Data Portal Guidance Document' (PDF) which is available below in the RESOURCES section of this page. ----- PRODUCT USE ----- The Canadian Hydrographic Service (CHS) NONNA Bathymetric Data products are for NON-NAVIGATIONAL USE ONLY. Please see the CHS NON-NAVIGATIONAL BATHYMETRIC DATA LICENCE AGREEMENT in the resources section below for further terms and conditions governing the use of this data. Under the Navigation Safety Regulations, 2020, made pursuant to the Canada Shipping Act (2001), notwithstanding exceptions, vessels navigating in Canadian waters must carry and use nautical charts and related publications issued by, or on the authority of the CHS. To obtain official navigational products released by the CHS, please see: www.charts.gc.ca For bathymetry outside of Canada’s jurisdiction, please consult the appropriate Hydrographic Office. ----- PRODUCT DESCRIPTION ----- The CHS NONNA-10 and NONNA-100 Bathymetric Data products represent a consolidation of digital bathymetric sources managed by the CHS. The « NONNA » refers to NON-NAvigational. The « 10 » or « 100 » references the approximate resolution (in metres) of the data. The CHS NONNA-10 individual product coverage is as follows: • South of 68°N the products = 0.1° latitude X 0.1° longitude (0.0001 degrees) • 68°N-80°N the products = 0.1° latitude X 0.2° longitude (0.0002 degrees) • 80°N and north the products = 0.1° latitude X 0.4° longitude (0.0004 degrees) The CHS NONNA-100 individual product coverage is as follows: • South of 68°N the products = 1° latitude X 1° longitude (0.001 degrees) • 68°N-80°N the products = 1° latitude X 2° longitude (0.002 degrees) • 80°N and north the products = 1° latitude X 4° longitude (0.004 degrees) There are various valid vertical datums associated with CHS' bathymetric sources. As a result, the vertical reference of the CHS NONNA products does not conform to a unified vertical datum. Although the NONNA products are intended to include only bathymetric data, some areas may include data on land. Elevation values will appear as a positive number when querying the data in the CHS NONNA Data Portal. Please note that gaps in the data may be visible where modern surveys have not yet been conducted or where legacy data has not yet been digitized. Data sources included in the NONNA products may not have been subjected to the same level of quality assurance as those in official navigational products. The CHS NONNA products will be updated annually and made available by the last Friday of April of each calendar year. ----- PRODUCT FORMATS ----- CHS NONNA products adhere to the following naming convention: NONNA10_4360N07940W • NONNA10 = the product and will be either NONNA100 or NONNA10 • 4360N07940W = the south-west corner of the NONNA cell. These products are available to view, query and download via the CHS NONNA Data Portal. The following formats are available for download: • 32-bit GeoTIFF • ASCII++ (XYZ) • CSAR • BAG These formats can be opened using various GIS applications. Alternatively, the CHS NONNA products can be accessed via Web Map Service (WMS), Web Coverage Service (WCS) or Web Map Tile Service (WMTS) links.

Contained within the 3rd Edition (1957) of the Atlas of Canada is a plate that shows the coverage of hydrographic charts produced by the Surveys and Mapping Branch of the Department of Mines and Technical Surveys, circa 1958. It also shows portions of three published sheets which illustrate the kinds of hydrographic charts available. The section entitled Inland Waters is part of Coast Chart 2303, Inland Waters, Great Lakes, Jackfish Bay to St. Ignace Island, Lake Superior. The Harbour Chart is part of Harbour Chart 3418, Vancouver Harbour. The Coastal Chart is part of Coast Chart 4311, Atlantic Ocean, Egg Island to Pennant Point, southeast coast of Nova Scotia.

THIS IS A GEOREFERENCED FILE. Vancouver Island (subsequently part of British Columbia, now in Canada). Chart: 'Esquimalt & Victoria Harbours Surveyed by Capt. G. H. Richards, R.N., and the Officers of H.M.S. Hecate 1861-2 ...'. Reference table to batteries, emplacements and temporary works. Scale: 1 inch to about 1,000 feet. Compass roses. Drawn for engraving by E J Powell; engraved by Davies and Powell; published at the Admiralty, 15 October 1864; corrected to 1876. Insets: views of the coast, by H Adlard. Coloured MS additions show works, and proposed batteries and gun emplacements, with their ranges and fields of fire. [Esquimalt and Victoria, 1864; 1876; 1879]

The Canadian Hydrographic Service (CHS) High Water Mark Lines provide alongshore and across-shore geomorphological and biological attributes of the high water mark shoreline. The lines are used in the CHS nautical charts to represent the level reached by sea water at high tide.

The Canadian Hydrographic Service (CHS) High Water Mark Lines provide alongshore and across-shore geomorphological and biological attributes of the high water mark shoreline. The lines are used in the CHS nautical charts to represent the level reached by sea water at high tide.

Transportation networks (transportation)The means and aids for conveying people and goods. For example, resources describing roads, airports and airstrips, shipping routes, tunnels, nautical charts, vehicle or vessel location, aeronautical charts, and railways.

The Canadian Ice Service (CIS) produces digital Arctic regional sea ice charts for marine navigation, forecasting, and climate research. The ice charts are created through the manual analysis of in situ, satellite, and aerial reconnaissance data. The ice charts have information on ice concentration, stage of development, and ice form, following World Meteorological Organization terminology. This digital record of sea ice charts begin in 2006 and cover the following regions of the Canadian Arctic: Northern Canadian waters (Western Arctic, Eastern Arctic, and Hudson Bay) and Southern Canadian waters (Great Lakes and East Coast). Each regional shapefile (.shp) (encoded in SIGRID-3 format) and associated metadata file (.xml) are combined into a tar archive file (.tar) for distribution. All data are available via FTP.

This map is used in the storymap/activity: Canada's Atlantic Ocean & Fisheries

Transportation networks (transportation)The means and aids for conveying people and goods. For example, resources describing roads, airports and airstrips, shipping routes, tunnels, nautical charts, vehicle or vessel location, aeronautical charts, and railways.

The Salish Sea, a dynamic system of straits, fjords, and channels in southwestern British Columbia, is home to ecologically and culturally important bull kelp (Nereocystis luetkeana) forests. Yet the long-term fluctuations in the area and the persistence of this pivotal coastal marine habitat are unknown. Using very high-resolution satellite imagery to map kelp forests over two decades, we present the spatial changes in kelp forest area within the Salish Sea, before (2002 to 2013) and after (2014 to 2022) the ‘Blob,’ an anomalously warm period in the Northeast Pacific. This analysis was spatially constrained by local environmental conditions. Based on nearshore sea surface temperatures (SSTs) from four decades (1984–2022), we found two periods of distinct increases in SST, one starting in 2000 and another in 2014. Further, the highest SST anomalies occurred on warmer coastlines in the enclosed inlets and the Strait of Georgia, while smaller anomalies were found on colder coastlines near the Strait of Juan de Fuca and the Discovery Passage. The total area of bull kelp forests from 2014 to 2022 has decreased compared to 2002 to 2013, particularly in the northern sector of the Salish Sea. Using the satellite-derived kelp data, we also present an analysis of kelp persistence compared with historical distribution of kelp forests depicted on British Admiralty Nautical Charts from 1858 to 1956. This analysis shows that warm, sheltered areas experienced a considerable decrease in persistence of kelp beds when compared to satellite-derived distribution of modern kelp, confirming a century-scale loss. In particular, the presence of kelp forests in the Strait of Georgia and on the warmest coasts has decreased considerably over the century, likely due to warming temperatures. While the coldest coasts to the south have maintained their centennial persistence, the northern Salish Sea requires further research to understand its current dynamics. This research contributes to a wider understanding of temporal and spatial factors for kelp from the regional perspective of the Salish Sea.

The maritime limits and boundaries of the U.S., found in the A-16 National Geospatial Data Asset Portfolio, is recognized as the low-water line along the coast measured from the U.S. baseline. This is marked on official U.S. nautical charts in accordance with the articles of the Law of the Sea. The baseline and related maritime limits are reviewed and approved by the inter-agency U.S. Baseline Committee.The primary purpose of this data is to update the official depiction of these maritime limits and boundaries on the National Oceanic and Atmospheric Administration's nautical charts. The Office of Coast Survey depicts on its nautical charts the territorial sea (12 nautical miles), contiguous zone (24 nautical miles), and Exclusive Economic Zone (200 nautical miles, plus maritime boundaries with adjacent/opposite countries). U.S. maritime limits are ambulatory and are subject to revision based on accretion or erosion of the charted low-water line. For more information about U.S. maritime limits and boundaries and to download data, see U.S. Maritime Limits & Boundaries. For the full Federal Geographic Data Committee metadata record, see Maritime Limits and Boundaries of United States of America.Thumbnail source image courtesy of: David Restivo