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IHO / OHI > IHO > Hydrographic Dictionary > Terms 20 - 29 from S-52 which were not included in S-32 Appendix 1 (ECDIS Glossary)


Terms 20 - 29 from S-52 which were not included in S-32 Appendix 1 (ECDIS Glossary)
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ihbpah
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 Posted: Thu Sep 9th, 2010 08:29 am

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This is the third of the three groups of terms from S-52. Please note there are some relationships between terms in each of the 3 groups so it is worth looking at them all before commenting on a particular term.

Attachment: Terms 20-29.zip (Downloaded 7 times)

ihbpah
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 Posted: Wed Sep 29th, 2010 07:32 am

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The definition provided for SOLAS is taken from Article 1 of the Convention but is only a part of it. The full Article is:

SOLAS

Article 1

(a) The Contracting Governments undertake to give effect to the provisions of the present Convention and the annex thereto, which shall constitute an integral part of the present Convention. Every reference to the present Convention constitutes at the same time a reference to the annex.

(b) The Contracting Governments undertake to promulgate all laws, decrees, orders and regulations and to take all other steps which may be necessary to give the present Convention full and complete effect, so as to ensure that, from the point of view of safety of life, a ship is fit for the service for which it is intended.


I personally do not think that we need this definition and should just include the acronym:

SOLAS "the Safety Of Life At Sea" convention adopted by the IMO.

JerryMills
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 Posted: Wed Oct 6th, 2010 09:37 pm

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20.  Navigational aid - No.  Navigational aid is a more general term that includes Aid to Navigation as well as other aids not external to the vessel.

21.  Navigational chart - No

22.  RNC - I don't think this really captures the electronic nature of the RNC.  I don't have an alternative definition at this time but will work on it.

23.  RENC - This term needs to be separated from RNC.  - Yes

24.  SOLAS - I concur with Steve's suggestion to only include the acronym.

25.  Track keeping - No

26.  True distance - No

27.  VDR - No

28.  Window - No

29. ???

ihbpah
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 Posted: Tue Oct 12th, 2010 06:06 am

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Firstly Jerry is right that I failed to separate RENC from RNC.

Secondly the missing definition is "NAVAREA Warning:- A NAVIGATIONAL WARNING issued by the NAVAREA Co-ordinator for its assigned area."  If we agree that this term should be defined in S-32 then as  with "NAVAREA" we should use the definition from S-53 which is: " NAVAREA warning means a navigational warning or in-force bulletin promulgated as part of a numbered series by a NAVAREA coordinator."

I believe RNC is defined in the IMO ECDIS Performance Standards, I will check this and make another post.

Otherwise I agree with Jerry's proposals.

ihbpah
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 Posted: Tue Oct 12th, 2010 07:57 am

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RNC is defined in Appendix 7 to resolution MSC.232(82) Revised ECDIS Performance Standards. It is effectively the same as that in S-52 with a slight change to make it sensible outside the ECDIS PS. It reads: " Raster Navigational Chart (RNC) means a facsimile of a paper chart originated by, or distibuted on the authority of, a government-authorised hydrographic office. RNC is used in these standards to mean either a single chart or a collection of charts."

I would therefore suggest that we should stick with the definition previously included in S-52.

JerryMills
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 Posted: Tue Oct 12th, 2010 06:27 pm

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I agree with Steve's suggestions.

jwootton
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 Posted: Mon Oct 25th, 2010 11:14 pm

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Agree with all suggestions, with the following additions:

RNC:  To solve Jerry's concern over not giving a clear indication of the electronic nature of the RNC, suggest the definition begin "A digital facsimile ...." (note the removal of "Raster Navigational Chart (RNC) means" from the S-53 definition).  Another issue with RNC, and also ENC, is the use of "Navigational" versus "Nautical".  I note that it is not recommended that "navigational chart" be included in S-32, to which I agree, but note that the S-52 term is "Raster Nautical Chart", while the Appendix 7 to resolution MSC.232(82) term is "Raster Navigational Chart".  This has been an issue that has been raised many times since S-57 (and specifically the ENC Product Specification) was published, and I intend to raise this again with TSMAD in order to have "navigational" universally changed to "nautical" for ENC and RNC before S-101 is published.

NAVAREA warning:  Do not need the "NAVARE warning means" at the start of the definition.

JerryMills
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 Posted: Wed Oct 27th, 2010 07:52 pm

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I have always been bothered by the use of "Navigational" instead of "Nautical" since a Navigational Chart could be an aeronautical chart or a nautical chart.  However, it appears that there were some very serious in depth discussions within IHO regarding the word that is represented by the letter "N" in ENC and RNC.  

S-61 contains the following definition:


Raster Navigational Chart (RNC) means a digital facsimile of a paper nautical chart, produced by or distributed on the authority of a government authorized hydrographic office.   RNC is used in these specifications to mean either a single chart or a collection of charts.



Hence, we shouldn't be defining Raster Nautical Chart but rather Rather Navigational chart.


Steve - can you provide background info on this issue?

ihbpah
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 Posted: Wed Nov 3rd, 2010 02:32 pm

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I beleive that I have captured the essence of our discussions so far in the attached?

Regarding nautical v navigational. Firstly Jeff is correct we should be defining "Raster Navigational Chart". This issue is a legacy from the rewrite of SOLAS Chapter V. In definition 2 of Chapter 5 we define "nautical charts" and "nautical publications" and indeed "nautical is the word we would like to use. Unfortunately somehow ENC and RNC used "navigational" and by the time it was realised it was too late!! I remember not long after arriving at the IHB in 2003 asking for clarification on this! The "navigational" in ENC and RNC are in too many IMO, IEC texts to really make it a feasible task to change.

Attachment: Terms 20-29-Final.zip (Downloaded 3 times)

JerryMills
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 Posted: Wed Nov 3rd, 2010 05:23 pm

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I agree.

jwootton
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 Posted: Wed Nov 3rd, 2010 11:29 pm

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Agree with everything except SOLAS.  By putting the "convention adopted by the IMO" on the end, aren't we defining what SOLAS is?  I have had a brief look at the list of abbreviations, and could not see any similar occurrence.  Perhaps if it were to read "International Convention for the Safety of Life at Sea" it would be more appropriate as an abbreviation?

ihbpah
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 Posted: Wed Nov 10th, 2010 06:34 am

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I have been through the list and hopefully have picked up all the entries which need capitalisation. I have amended SOLAS acronym entry as suggested by Jeff.

Attachment: Terms 20-29-Final.zip (Downloaded 2 times)

ihbpah
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 Posted: Fri Nov 12th, 2010 08:26 am

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Having just prepared the CL on the definitions endorsed by HSSC2 I have realised that we had included the acronym SOLAS then!! Fortunately we arrived at the same result as we did this time!


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