[Seavox] FW: [Fwd: Additional Vertical Co-ordinate coverage terms]

Fri Jan 25 20:29:45 GMT 2013

Hi Roy,

FWIW Here's my memory based on my intro Oc classes as a Biological
Oceanography PhD student many years agoŠ

The upper limit of the littoral is defined by the top of splash zone -
i.e. the highest level influenced by direct contact, though not
necessarily submersion, with seawater.

(Lakes also a littoral zone, if SeaVox concerns itself with freshwater
systems.)

There is clearly variety in definitions, though.

I have my old textbooks stowed awayŠwill see if I can dig it out to get
you an authoritative source for a definition.

Cheers,

-Karen

----------------------------------------------------
Karen Stocks, PhD
Specialist, San Diego Supercomputer Center
Director, Geological Data Center, Scripps Institution of Oceanography
Data Curator, Ocean Observatories Initiative
+1 858 534-5009

Mailing Address:
     UCSD MC 0505
     9500 Gilman Drive
     La Jolla, CA 92093-0505

On 1/24/13 5:03 AM, "Lowry, Roy K." <rkl at bodc.ac.uk> wrote:

>Hi Karen,
>
>I wasn't aware of it, but it's headed straight into my reference
>collection! It's just so well-suited to vocabulary work.
>
>I'll use it to check out the proposed new terms and report anything I
>find to the list.  HOWEVER, I did notice that littoral was considered
>synonymous with intertidal. Any other opinions on the upper boundary of
>littoral?  I'll also check to what CEFAS have to say.
>
>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!
>
>
>-----Original Message-----
>From: Stocks, Karen [mailto:kstocks at sdsc.edu]
>Sent: 23 January 2013 22:54
>To: Lowry, Roy K.
>Subject: Re: [Seavox] FW: [Fwd: Additional Vertical Co-ordinate coverage
>terms]
>
>Hi Roy,
>
>I suspect you are already well aware of it, but FWIW the Coastal Marine
>Ecological Classification Standard has some discussion/definition of
>terms applying to the littoral/intertidal and deeper regions, from a
>biological perspective.
>http://www.csc.noaa.gov/digitalcoast/publications/cmecs
>
>Cheers,
>
>-Karen
>
>
><><><><><><><><><><><><><><><><><><><><><><>
>Karen Stocks, PhD
>Specialist, San Diego Supercomputer Center Data Curator, Ocean
>Observatories Initiative Cyberinfrastructure Director, Geological Data
>Center, Scripps Inst. of Oceanography
>
>Mailing Address:
>        UCSD, SDSC
>        9500 Gilman Drive, MC 0505
>        La Jolla, CA 92093-0505
>        USA
>+1 858 534-5009
>kstocks at ucsd.edu
>
>
>
>
>
>
>
>On 1/23/13 2:15 AM, "Lowry, Roy K." <rkl at bodc.ac.uk> wrote:
>
>>Copying some feedback received directly to the list.....
>>
>>Please note that I now work part-time from Tuesday to Thursday.  E-mail
>>response on other days is possible but not guaranteed!
>>
>>-----Original Message-----
>>From: Jacques POPULUS [mailto:Jacques.Populus at ifremer.fr]
>>Sent: 23 January 2013 10:06
>>To: Eric MOUSSAT
>>Cc: Lowry, Roy K.
>>Subject: Re: [Fwd: [Seavox] Additional Vertical Co-ordinate coverage
>>terms]
>>
>>Hi Eric,
>>Overall these definitions are all right.
>>By Keeping "littoral" as it is, we avoid to specify too much its upper
>>limit. Some consider the coastline (Roy's comments), some let it go
>>further inland (certainly so in France where the "loi littoral" is
>>about the first 100m inland). Using the definition below gives no upper
>>limit, which I think is to be preferred. If people want to contain it
>>strictly beweent LAT and coastline, then they can use "the intertidal
>>zone".
>>The lower circa definition is in line with recent literature, although
>>some authors were keen to add the termperature regime as a key driver
>>(the circa features weekly temperature changes while the deep circa
>>only seasonal ones), however you could leave it there for the sake of
>>simplicity .
>>Upper slope, bathyal and abyssal boundaries are still very much being
>>discussed and biological evidence sought.
>>
>>Cheers
>>Jacques
>>
>>
>>
>>Le 23/01/2013 10:33, Eric MOUSSAT a écrit :
>>> Bonjour Jacques (et bonne année),
>>>
>>> peux-tu donner ton avis sur cette terminologie stp ?
>>>
>>> Elle entrera dans le Common vocabulary de SeazDataNet/Geo-Seas et je
>>> ne voudrais pas qu'elle soit en porte-à-faux avec la terminologie
>>> employée dans nos différents programme ...
>>>
>>>
>>> Merci de ta contribution
>>>
>>>
>>> Eric
>>>
>>>
>>> -------- Message original --------
>>> Sujet :     [Seavox] Additional Vertical Co-ordinate coverage terms
>>> Date :     Wed, 23 Jan 2013 08:16:10 +0000
>>> De :     Lowry, Roy K. <rkl at bodc.ac.uk>
>>> Pour :     seavox at mailman.nerc-liv.ac.uk
>>><seavox at mailman.nerc-liv.ac.uk>
>>> Copie à :     Postlethwaite, Clare <cfpo at bodc.ac.uk>
>>>
>>>
>>>
>>> Dear All,
>>>
>>> It has been pointed out to me that the 'SeaVoX Vertical Co-ordinate
>>> Coverages' (L13) vocabulary (entity definition: Terms used to
>>> describe data coverage over the vertical (z) co-ordinate.) is
>>> somewhat biased towards the atmosphere and the water column, with
>>> just one keyword
>>> (sediment) available to benthic ecolologists.  Consequently, it has
>>> been proposed that the seven keywords given below with definitions
>>> provided by CEFAS be added to the controlled vocabulary.
>>>
>>> An initial review within BODC has already pointed out that the
>>> definition of littoral doesn't specify the upper boundary, so maybe a
>>> better definition (courtesy of Wikipedia) of littoral would be 'that
>>> part of the shore between the high water mark and the low water mark
>>> sometimes referred to as the intertidal zone'.
>>>
>>> Are there any other comments, objections, definition revisions?  If
>>> so, please let me have your comments by the end of the month.  I plan
>>> to include the additions on February 5^th .
>>>
>>> Cheers, Roy.
>>>
>>> *Littoral        *that part of the shore above the low water mark (i.e.
>>> anywhere that is exposed at low tide).
>>>
>>> *Infralittoral   *the algal dominated zone below the low water mark. It
>>> extends to a depth where 1% of the surface illumination reaches the
>>> seabed. This varies according to turbidity, but can be as little as a
>>> few metres or as much as 70 metres.
>>>
>>> *Circalittoral   *the animal dominated zone. On open coastline this is
>>> from the bottom of the infralittoral zone to the wave-base, i.e. the
>>> depth to which storms and waves still influence the seabed, typically
>>> 50 to 80 metres depth for offshore waters.
>>>
>>> *Deep Circalittoral      *below the wave-base to the shelf break at
>>>~200
>>> metres depth. (Sometimes called offshore circalittoral).
>>>
>>> *Upper slope     *the upper part of the continental slope, from the
>>>edge
>>> of the shelf break at ~ 200m (also the depth of the seasonal
>>> thermocline) down to ~ 750 metres (the depth of the permanent
>>> thermocline).
>>>
>>> *Bathybenthic    *below the permanent thermocline (~750m) usually
>>> incorporating the rest of the shelf slope and the ocean floor to
>>> ~2700 metres. Crosses the 4oC permanent thermocline. Includes several
>>> faunal discontinuities.
>>>
>>> *Abyssobenthic   *below ~ 2700 metres where the bathyal fauna are
>>> replaced by more primitive abyssal fauna.
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> Please note that I now work part-time from Tuesday to Thursday.
>>> E-mail response on other days is possible but not guaranteed!
>>>
>>>
>>>
>>> _  ________________________________  _ This message (and any
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>>> an electronic records management system.
>>>
>>
>>--
>>Jacques Populus
>>DYNECO/Applications Géomatiques
>>IFREMER - BP 70 - 29280 PLOUZANE - FRANCE Tél : 33 - 298224310 Fax : 33
>>-
>>298224548 jpopulus at ifremer.fr http://www.meshatlantic.eu/
>>http://www.ifremer.fr/anglais/
>>
>>
>>
>>
>>
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>>
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>
>
>This message (and any attachments) is for the recipient only. NERC is
>subject to the Freedom of Information Act 2000 and the contents of this
>email and any reply you make may be disclosed by NERC unless it is exempt
>from release under the Act. Any material supplied to NERC may be stored
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