These are good. I like Nan's rephrasing with Roy's substitution, better than what I wrote.
john
On Jun 15, 2015, at 10:28, Nan Galbraith <ngalbraith at whoi.edu> wrote:
> Hi Roy -
>
> Sure, determination is fine.
>
> Thanks - Nan
>
> On 6/15/15 1:07 PM, Lowry, Roy K. wrote:
>> Hi Nan,
>>
>> 'Determination'? - 'Estimate' sounds lik a guess to me.
>>
>> Cheers, Roy.
>> ________________________________________
>> From: CF-metadata [cf-metadata-bounces at cgd.ucar.edu] on behalf of Nan Galbraith [ngalbraith at whoi.edu]
>> Sent: 15 June 2015 17:49
>> To: Signell, Richard
>> Cc: cf-metadata at cgd.ucar.edu; Rich Pawlowicz
>> Subject: Re: [CF-metadata] Practical Salinity units
>>
>> Hi all -
>>
>> On 6/15/15 11:12 AM, Signell, Richard wrote:
>> > I like the simpler version that John made, and Rich Pawlowicz reported
>> > back to me that both versions are acceptable to him, so Nan, do you
>> > think we could resolve the issue you have with John's version?
>> >
>> > If so, perhaps we could put this one to bed!
>>
>> I'm mainly concerned with 'measure of salinity' since it's ... not
>> that. To keep this
>> quick, maybe we could simply change word 'measure' to 'estimate'?
>>
>> Or to make the first sentence more clear, and less a collection of necessary
>> phrases, could we break it into 2 and change it to:
>>
>> Practical Salinity is an estimate of salinity of sea water, based on its
>> electrical
>> conductance. The measured conductance, corrected for temperature and
>> pressure,
>> is compared to the conductance of a standard potassium chloride
>> solution, producing
>> a value on the Practical Salinity Scale of 1978 (PSS-78).
>>
>> If that's too much, I'll go with John's version, or Alison's ... yes, it
>> would be good
>> to wrap this up.
>>
>> Thanks!
>> Nan
>>> On Fri, Jun 12, 2015 at 3:11 PM, Nan Galbraith <ngalbraith at whoi.edu> wrote:
>>>> Hi Alison and all -
>>>>
>>>> Either of these definitions looks fine to me. I'd prefer Alison's,
>>>> because John's version might be a little misleading - the phrase
>>>> 'measure of salinity' has some implications that aren't cleared up
>>>> fast enough in the text for me.
>>>>
>>>> I'm mainly interested in moving the units along, though, so whatever
>>>> is needed for the definition to work for us is all good.
>>>>
>>>> Thanks very much -
>>>> Nan
>>>>
>>>> On Mon, Jun 8, 2015 at 8:51 AM, <alison.pamment at stfc.ac.uk> wrote:
>>>>
>>>> ?Practical Salinity is defined on the Practical Salinity Scale of 1978
>>>> (PSS-78) and is calculated from the electrical conductivity of sea water (as
>>>> well as temperature and pressure). Practical Salinity is not a direct
>>>> measure of salt concentration, rather, it is a relative scale calibrated
>>>> against a standard potassium chloride solution containing 32.4356 g kg-1 of
>>>> KCl whose conductivity is measured at 15 degrees Celsius. Conversion of
>>>> Practical Salinity to other precisely defined salinity measures should be
>>>> performed by application of the appropriate formulas specified by TEOS-10.
>>>> This name should not be used to describe salinity observations made before
>>>> 1978, or ones not based on conductivity measurements. There are also
>>>> standard names for the precisely defined salinity quantities
>>>> sea_water_knudsen_salinity (S_K), used for salinity observations between
>>>> 1901 and 1966, sea_water_cox_salinity (S_C), used for salinity observations
>>>> between 1967 and 1977, sea_water_absolute_salinity (S_A),
>>>> sea_water_preformed_salinity (S_*), and sea_water_reference_salinity.
>>>> Salinity quantities that do not match any of the precise definitions should
>>>> be given the more general standard name of sea_water_salinity.
>>>> Reference:www.teos-10.org; Lewis, 1980 doi:10.1109/JOE.1980.1145448.?
>>>>
>>>>
>>>>
>>>> On 6/8/15 2:18 PM, John Graybeal wrote:
>>>>
>>>> Practical Salinity is a measure of salinity performed on a relative scale
>>>> calibrated against a standard potassium chloride solution, as defined on the
>>>> Practical Salinity Scale of 1978 (PSS-78). This name should not be used to
>>>> describe salinity observations made before 1978, or ones not based on
>>>> conductivity measurements. Conversion of Practical Salinity to other
>>>> precisely defined salinity measures should use the appropriate formulas
>>>> specified by TEOS-10. Other standard names for precisely defined salinity
>>>> quantities are sea_water_absolute_salinity (S_A);
>>>> sea_water_preformed_salinity (S_*), sea_water_reference_salinity;
>>>> sea_water_cox_salinity (S_C), used for salinity observations between 1967
>>>> and 1977; and sea_water_knudsen_salinity (S_K), used for salinity
>>>> observations between 1901 and 1966. Salinity quantities that do not match
>>>> any of the precise definitions should be given the more general standard
>>>> name of sea_water_salinity. Reference: www.teos-10.org; Lewis, 1980
>>>> doi:10.1109/JOE.1980.1145448.
>>>>
>>>>
>>>>
>>>> --
>>>> *******************************************************
>>>> * Nan Galbraith Information Systems Specialist *
>>>> * Upper Ocean Processes Group Mail Stop 29 *
>>>> * Woods Hole Oceanographic Institution *
>>>> * Woods Hole, MA 02543 (508) 289-2444 *
>>>> *******************************************************
>>>>
>>>>
>>>
>>
>> --
>> *******************************************************
>> * Nan Galbraith Information Systems Specialist *
>> * Upper Ocean Processes Group Mail Stop 29 *
>> * Woods Hole Oceanographic Institution *
>> * Woods Hole, MA 02543 (508) 289-2444 *
>> *******************************************************
>>
>>
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>> ________________________________
>>
>
>
> --
> *******************************************************
> * Nan Galbraith Information Systems Specialist *
> * Upper Ocean Processes Group Mail Stop 29 *
> * Woods Hole Oceanographic Institution *
> * Woods Hole, MA 02543 (508) 289-2444 *
> *******************************************************
>
>
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---------------------------------------
John Graybeal
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650-450-1853
skype: graybealski
linkedin:
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Received on Mon Jun 15 2015 - 12:02:13 BST
