[Platforms] Netherlands TRIDENS Resolving past errors

Roy Lowry rkl at bodc.ac.uk
Fri Jun 22 10:05:30 BST 2007


Hi Marilynn,

Works for me.

Cheers, Roy.

>>> Marilynn Sørensen <marilynn at ices.dk> 6/21/2007 5:17 pm >>>
Hi Roy and Taco,

I am not convinced that the TRIDENS codes are resolved. We discussed this, but according to my records, we never agreed on a third code for the period 1968-1991. It was at this time that we began discussing the multiple hull coding. I have looked at old ROSCOPS and data here at ICES, and they are quite a mixture of TRIDENS, TRIDENS I & II names and call signs (more than we have discussed), whereas the old (1968-) data are mainly from 64TD.

I therefore propose 64T0:
64T0, call sign PBUG (from ROSCOPS), name TRIDENS from 1968-1991

We have already agreed:
64T1, call sign PIAO from 1991, name TRIDENS 1 (renamed 15 April 1991), previous name TRIDENS, built 1967/8, IMO6812833, length 60.85
And
64TD, call sign PBVO, Built 1990, name TRIDENS, IMO8821852, length 73, owner NE govt. 

HOWEVER...
I am tempted to suggest that 64TD be coded as a multiple hull and a new code made for IMO8821852. No matter what we do there is a mess here. I prefer to guide through the mess with links to the correct information.

Proposal:
64TD, name TRIDENS, multiple hulls
64T2, call sign PBVO, Built 1990, name TRIDENS, IMO8821852, length 73, owner NE govt.

What do you think of this?

-Marilynn



-----Original Message-----
From: platforms-bounces at biwebs1.nerc-liv.ac.uk [mailto:platforms-bounces at biwebs1.nerc-liv.ac.uk] On Behalf Of Roy Lowry
Sent: 30 March 2007 08:14
To: platforms at biwebs1.nerc-liv.ac.uk; rkl at bodc.ac.uk; bruin at nioz.nl 
Subject: Re: [Platforms] TRIDENS Resolving past errors

Hello again,

I suspect that there are ROSCOPs and possibly data around from the original Tridens labelled 64TD.  Likewise for the current Tridens, so there are some corrections to be done.  I have recently been through this exercise in BODC for RRS Discovery and FS Meteor.  Once we have codes set up with clear metadata containing more information that just a name confusion disappears and we are on the road to recovery.

Cheers, Roy.

>>> <bruin at nioz.nl> 3/29/2007 7:57 pm >>>
Hi Roy,

After giving the matter some more thought, I realized that we were probably saying the same thing (and this enlightened insight came before I read your email, fortunately :-) ).

Your answer also gives rise to a new question:
I suspect that the code 64TD (according to you for the hull (1991-) has also been used for cruises carried out by the first Tridens (now Tridens I, 64T1).
Is this true and is there a way to remedy this by adding a THIRD code for the hull operating 1968-1991?

Cheers,

Taco

-----platforms-bounces at biwebs1.nerc-liv.ac.uk wrote: -----

To: <platforms at biwebs1.nerc-liv.ac.uk>
From: "Roy Lowry" <rkl at bodc.ac.uk>
Sent by: platforms-bounces at biwebs1.nerc-liv.ac.uk 
Date: 03/29/2007 05:25PM
Subject: Re: [Platforms] TRIDENS Resolving past errors

Hi Taco,

I think we are saying the same thing.  We have one hull (1991-) with one name, which already has a code (64TD).

We have a second hull operating for the gas/oil industry under the name Tridens 1, for which the code 64T1 has been pretty much accepted.

My request is for a THIRD code to cover this hull when it was operating as Tridens from 1968-1991.

If we don't give new codes when the name changes history goes out of the window.  For example, the UK ship RRS Charles Darwin (code 74AB) has been sold and renamed Ocean Explorer.  If we had renamed code 74AB then about 200 NERC cruises would suddenly chave changed identity from Charles Darwin to Ocean Explorer, which is not good!

Cheers, Roy.

>>> <bruin at nioz.nl> 03/29/07 1:36 PM >>>
Sorry folks: two ships, two hulls,  two names:

Tridens -1968-1991-operated by Fisheries Institute of the Netherlands, sold to Chase Seismic Survey B.V.
(http://www.css-denhelder.nl/frm_info.htm) in 1991, renamed into Tridens I, now a survey vessel for the offshore oil and gas industry

Tridens - 1991 - , operated by Fisheries Institute of the Netherlands (new ship, new hull, same name)

Both vessels have contributed data to the ICES databases, so there should be two different codes.

I'll find out about the call sign.

Please wait for me before taking decisons concerning the Dutch research vessels, I'm in a much better position to find out about their history.

Cheers,

Taco



"Roy Lowry" <rkl at bodc.ac.uk>
Sent by: platforms-bounces at biwebs1.nerc-liv.ac.uk 
03/29/2007 01:34 PM

To
<platforms at biwebs1.nerc-liv.ac.uk>
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Subject
Re: [Platforms] TRIDENS Resolving past errors






Hi Marilynn,

One ship: two names.

Let us call 64T1

<class>research
vessel</class><commissioned>1991-04-15</commissioned><previous_
name>Tridens</previous_name><notes>Research vessel owned by Chase
name>Seismic
Survey BV.  Built 1968 as Tridens, renamed Tridens I 15 Apr 1991.  Length 60.85m, callsign PIAO.  Active as at Mar 07.</notes>

This means we are just short of a code for this ship when she was operated under the name of Tridens by Fisheries Institute of the Netherlands between 1968 and 1991.

Cheers, Roy.

>>> Marilynn Sørensen <marilynn at ices.dk> 3/29/2007 12:04:03 pm >>>
Hi Roy,

Is it correct that you are saying that the proposed 64T1 really refers to two ships? Could you/someone supply the attributes?

Cheers,
Marilynn

-----Original Message-----
From: platforms-bounces at biwebs1.nerc-liv.ac.uk 
[mailto:platforms-bounces at biwebs1.nerc-liv.ac.uk] On Behalf Of Marilynn Sørensen
Sent: 20 March 2007 17:52
To: Roy Lowry; platforms at biwebs1.nerc-liv.ac.uk 
Subject: [Platforms] Netherlands TRIDENS and TRIDENS 1

Hi everyone,

I have checked with Lloyds and have found the following for Netherlands TRIDENS and TRIDENS I:

1) Existing NODC/ICES code: 64TD, name TRIDENS, Built 1990, Call sign PBVO, Notes: IMO8821852, length 73, owner NE govt.

2) New ICES code: 64T1, name TRIDENS 1, Built 1967 (note not 1993 as in spreadsheet), Call sign PIAO, Previous name TRIDENS (changed in 1990),
Notes: IMO6812833, length 61, owner Chase Seismic Survey BV

Marilynn

-----Original Message-----
From: platforms-bounces at biwebs1.nerc-liv.ac.uk 
[mailto:platforms-bounces at biwebs1.nerc-liv.ac.uk] On Behalf Of Roy Lowry
Sent: 29 March 2007 12:51
To: platforms at biwebs1.nerc-liv.ac.uk 
Subject: [Platforms] Resolving past errors

Dear All,

As I try to rationalise the ship codes for POGO I keep running into the confusion caused by ships being renamed.

Problem 1: Beautemps-Beaupré

We have code 35BB which seems to be connected to the current French naval survey ship (pennant A758, commissioned 2003).  Worryingly I have a note about a 35BB launched in 1939, so it looks like we have another case of a code transferring from one ship to another.

I propose that we keep the code 35BB for A758 and have a new code labelled up for the old 'Beautemps Beaupré', which I don't think had the hyphen.

Note the the the name in RECO  for 35BB has no hyphen, which I think is incorrect.

Problem 2: Tridens

I think we are now clear that the history is that there was a fishery research vessel called Tridens, which was sold to a commercial outfit and renamed Tridens I. A new fishery research vessel came on the scene and inherited the name Tridens.  Again, the code (64TD) was passed from one ship to another.  I think that we need 3 codes here, but we only have one.
My suggestion would be:

Keep 64TD for the current fishery research vessel Tridens Set up a new code for commercial survey vessel Tridens I Set up a new code for the original Tridens when she was operating as a fishery research vessel

Is everyone, particularly Michele and Taco, happy with this?

Cheers, Roy.






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