Table of Contents
- 1 How do you do nautical chart corrections?
- 2 How marine navigation charts are constantly corrected with the latest information?
- 3 What is the importance of correcting navigational chart?
- 4 How important is the nautical publication?
- 5 Why is it important to keep your nautical publications updated?
- 6 How do you correct a chart Catalogue?
- 7 Why are nautical publications important to Mariners?
- 8 How are electronic charts corrected?
- 9 When do you need to do chart corrections?
- 10 Are there any corrections to Admiralty nautical publications?
How do you do nautical chart corrections?
- Whenever a new chart or new edition is published, Weekly Notices to Mariner carry a notification of the same.
- On receiving a chart or a notification through weekly notices to mariners which replaces a previous chart , insert in the chart correction log ‘replaced by’ or ‘cancelled by’ against the mentioned chart.
The Notices are usually accompanied by tracings for each chart affected; these tracings are overlaid temporarily on each chart and the correction ‘traced’ onto the chart for easy, accuracy and speedy chart correction.
In the interests of good seamanship, it is vitally important that all charts are corrected up to date to the latest Notice to Mariners and NP5011 standards, to ensure safety critical information is applied to each chart.
What are the corrections that can be found in a Notice to Mariner?
Mariners are requested to cooperate in the correction of charts and publications by reporting all discrepancies between published information and conditions actually observed and by recommending appropriate improvements. A reporting form is provided in the back of each Notice to Mariners.
How do you correct the nautical chart according to Notice to Mariner?
Correction for a new chart:
- Highlight the chart number in the correction log.
- Enter the Chart Folio and sequence number, from the index.
- Correct the chart for any pending corrections.
- Correct the Admiralty Chart Catalogue (NP 131) if affected.
How important is the nautical publication?
The marine environment is subject to frequent change and the latest publications should always be used, especially when passage planning. Hydrographic officers who produce of nautical publications also provide a system to inform mariners of changes that effect the chart.
Why is it important to keep your nautical publications updated?
How do you correct a chart Catalogue?
What is the reasons why we need to updates charts in ECDIS regularly?
The vector and raster charts stored in an ECDIS must be updated regularly both to ensure that the most current data for marine navigational purposes is available and that the ECDIS is able to read the data that is supplied and function correctly.
Where can chart corrections be found?
Some have websites; most have a notice board where you can find copies. To correct a chart, look up the number of the chart in the index at the front of the NTM, by the chart number there will be a list of all the corrections that relate to that chart. Each correction is given a number to identify it.
Why are nautical publications important to Mariners?
How are electronic charts corrected?
Charts on ECDIS need to be updated and corrected on a regular basis. Unlike paper charts where the procedure involves manual insertion of the corrections, correction to ENCs are made automatically. ECDIS allows updating the existing charts and installing new charts too.
When do you need to do chart corrections?
In addition to this, Chart Corrections contains information on new charts, updated reprints and new editions of nautical charts, and updates on the web publications. When acquiring a nautical chart it is the navigator’s responsibility to update the chart with corrections that are dated after the publication date of the chart in question.
How do you know when to correct a nautical chart?
Check your work and make a note of the Notice to Mariner Number and Year in the bottom left hand corner of the chart, so any reader knows the last correction applied. If you decide that a correction does not apply to your vessel, making a note of the correction number on the chart will save re-checking at a later date.
How often is the Danish Nautical Chart corrections published?
Chart Corrections is published on a weekly basis and contains the corrections necessary to update and maintain the nautical charts and nautical publications of the Danish waters, the waters around the Faroe Islands and the waters around Greenland.
Are there any corrections to Admiralty nautical publications?
Corrections to admiralty nautical publications -A guide to navigation for merchant ship. All vessel should keep an updated list of nautical publications as per regulations set by IMO. If a new edition is published, this too shall be entered along with edition on board to keep a check until it is received.