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Old 31-03-2013, 19:34   #1
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Need help finding US Chart corrections

Can anyone please let us know where to find online corrections to US Hydrographic maps? I have emailed National Geospatial Intelligence Agency and National Oceanic and Atmospheric Administration and have had no reply from either.

We are trying to locate the Notices to Mariners for online corrections and updates to charts, before embarking on a sailing trip from Tasmania - New Zealand - Vanuatu - New Caledonia.

We have about twenty charts put out by NOAA, NIMA and Defence Mapping Hydrographic Topographic Centre dated in the 1990s. We are having difficulty finding any corrections/updates online.

Thank you
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Old 31-03-2013, 19:50   #2
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Re: Need help finding US Chart corrections

Have you tried the NOAA site for online updates?

Notice to Mariners Chart Updates

type in the number of the chart you wish to update and press get chart. You are given the options on the next screen to order a new updated paper chart, view the chart on line, or download the latest Rastor chart. You can also check the Notice Listing which will give you not only the list of changes, but also the date of the update publication.

For non US territorial waters, you will likely have to go the the hydrographic offices of the countries you plan to visit. Do you have an electronic chart plotter of some sort? If you do you can down load the electronic charts from the vender or manufacturer site.
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Old 31-03-2013, 20:12   #3
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Re: Need help finding US Chart corrections

Here are some useful links that might help you. You can download the latest NOAA charts anytime at no cost. I think there are 2273 of them and you can download them en-mass if you find the right portal. You can sometimes find non-US charts at no cost as well.

SeaClear GPS Navigation Software Open source SEA CLEAR

Canadian Hydrographic Service CANADA (not free)

ENC Resources NOAA

NOAA Nautical Charts in .png Format NOAA and links

https://www.mar.mil.br/dhn/chm/carta...s_Internet.htm BRASIL
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Old 31-03-2013, 21:12   #4
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Re: Need help finding US Chart corrections

The NOAA site will only give you corrections for US coast charts.
Try this one for corrections on US produced charts of your area.
Maritime Safety Information
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Old 03-04-2013, 05:51   #5
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Re: Need help finding US Chart corrections

Thanks very much. That is all sorted now.
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