[Seavox] L06 extensions

[John Graybeal]

A few thoughts.

3C and 27 are difficult to distinguish. No gliders are exclusively on the sea surface, if by 'glider' we mean a system that uses buoyancy to initiate forward motion. They are all able to operate within the water column.  So I might say
3C: A platform with buoyancy-based propulsion that routinely surfaces to meet its objectives. 
27: A platform with buoyancy-based propulsion that can routinely meet its mission objectives without surfacing.
These are then mutually exclusive.

49: The term 'undrogued' is unfamiliar to me, and to my 3 buddies with ocean background. Looking it up seems to product multiple definitions. Any chance we could be more specific? Or perhaps it isn't critical to the definition?

93/94: 'covering over/under 70% of the sea surface' -- at what scale is this metric assessed? I assume we don't mean of the _entire_ sea surface, but we don't mean of the sea surface within 1 meter, either. 

John





On Aug 1, 2013, at 05:49, "Lowry, Roy K." <rkl at bodc.ac.uk> wrote:

> Dear All,
>  
> Discussions on this have gone quiet, so I'll summarise what has been said into a proposal for change:
>  
> New codes:
>  
> CODE: 3C
> Preferred Label: surface gliders
> Definition: A platform with buoyancy-based propulsion that is confined to operation on the sea surface.
> Mapping: broadMatch to surface autonomous vehicle
>  
> CODE: 27
> Preferred Label: sub-surface gliders
> Definition: A platform with buoyancy-based propulsion that is able to operate within the water column.
> Mapping: broadMatch to autonomous underwater vehicle
>  
> CODE: 49
> Preferred Label:  surface ice buoy
> Definition: An undrogued surface float that is deployed in regions where sea ice forms that moves with either ice or water depending upon the time of year.
> Mapping: broadMatch drifting surface float
>  
> CODE: 93
> Preferred Label: pack ice
> Definition: Sea ice not connected to land covering over 70% of the sea surface.
> Mapping: broadMatch cryosphere
>  
> CODE: 94
> Preferred Label: drift ice
> Definition: Sea ice not connected to land covering under 70% of the sea surface.
> Mapping: broadMatch cryosphere
>  
> If there are no further comments I'll add these records to the vocabulary when I return from leave on August 20th.
>  
> Cheers, Roy.
>  
>  
>  
> Please note that I now work part-time from Tuesday to Thursday.  E-mail response on other days is possible but not guaranteed!
>  
>  
> 
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