About nautical chart updates frequency

The main advantage of the Marine GeoGarage server is to provide up to date nautical charts.

At this stage of the project, the time planning for the updates which depends on the distribution methods used by the different Hydrographic Services (HS) is the following :

• NOAA : every 2 months (today 1024 charts / 2223 including sub-charts)
• UKHO : every 3 months (today 667 charts / 1293 including sub-charts)
• Linz : every month (today 323 charts)
• Brazil : every month (today 242 charts)

* sub-chart : a paper chart might include a number of smaller detailed charts inset inside of it.

Note : in a future version of the Marine GeoGarage backend application, this scheduling will be reduced to match the update rating proposed the different HS servers (using automated distribution infrastructure provided by NOAA for example)

Historical maps

https://www.davidrumsey.com/view/google-maps

How to superimpose the past over the present and see both simultaneously ?

Quite simple with GeoGarage spatial image web server :

• World Globe 1790 : this globe shows contemporary discoveries in the Pacific as well as the routes of three of Captain James Cook's voyages...
• San Francisco 1859, one of th earliest maps of San Francisco Bay by the U.S. Coast Survey...
• nautical chart of Cuba (1775), showing ship tracks, rhumb lines, currents, depths by soundings...

Click on rumsey.geogarage.com to get access to 120 ancient maps from David Rumsey collection.

And don't forget to play with the transparent map slider option, it just gets better !

What about the source of the maps ?

The website has been derived in part from material obtained from different national Hydrographic Services (HS) with their official agreement :

• NOAA (US) : Raster Navigational Charts (RNC) ® from National Oceanic and Atmospheric Administration

• LINZ (New Zealand) : our website contains data sourced from Land Information New Zealand. Land Information New Zealand gives no warranty in relation to the data (including accuracy, reliability, completeness or suitability) and accepts no liability (including, without limitation, liability in negligence) for any loss, damage or costs relating to any use of the data. © Crown Copyright Reserved.

• Serviço Hidrogràfico Brasileiro : Marinha do Brasil , Copyright © Diretoria de Hidrografia E Navegaçao (DHN is not responsible for this use of their data)

• UK Hydrographic Office with the permission of the UK Hydrographic Office and Her Majesty's Stationery Office. The UK Hydrographic Office (UKHO) and its licensors make no warranties or representations, express or implied, with respect to this product. The UKHO and its licensors have not verified the information within our product or quality assured it. © British Crown Copyright, 2010

• GEBCO Digital Atlas from the British Oceanographic Centre (BODC) : the imagery (bathymetric contours) are produced on the fly from the GEBCO_08 Grid (version 20090202, 30 seconds) stored on our GeoGarage server (button 'Physical').

The catalog is expanding : additional nautical maps sources are in preparation. Stay tuned...

Marine GeoGarage, "Pathfinder of the Seas"

GeoGarage, cloud-based nautical charts streaming platform
just the mapping apps for the 70% of the world that Google Maps does not cover...

Though datafication’s been fundamentally enabled by advances in computing technology, the baseline of the Marine GeoGarage is a reference to the work of 19th century naval officer Matthew Maury, who painstakingly sifted through records of nautical books, maps and charts and inventoried barometers, compasses, sextants and chronometers to assemble new navigational charts that revolutionized trans-Atlantic travel.

Matthew Maury nicknamed "Pathfinder of the Seas" 

and "Father of Modern Oceanography and Naval Meteorology"

and later, "Scientist of the Seas"

The “Pathfinder of the Seas” established and analyzed a huge body of data that ultimately led to cuts in the times of long voyages by a third.
Today, Maury would be a celebrated data scientist.

Chart by Lieutenant M.F. Maury, 1848

In some similar way, the goal of the Marine GeoGarage is to become the "Google Maps" of the seas, gathering all the nautical charts available at the international Hydrographic Offices, and proposing regular updates to keep the information the most precise possible.

Why using the Marine GeoGarage services ?

The Marine GeoGarage is an integrated online marine tool, providing functions such as :

• nautical charts display
• voyage planning
• waypoint and route monitoring
• bearing and distance calculations
• transfer displayed waypoints and routes to your Garmin GPS receiver via the Garmin Communicator plugin or save them in GPX format

NOTE : This chart display or derived product for mobile smartphone can be used as a planning or analysis tool and may not be used as a navigational aid.

Use the official, full scale National Hydrographic Service (HS) nautical charts for real navigation whenever possible. These are available from authorized HS nautical chart sales agents.

Screen captures of the on-line viewable charts available here do NOT fulfill chart carriage requirements for vessels.

Welcome to the Marine GeoGarage on Prezi