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 <[email protected]> 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 [[email protected]] on behalf of Nan >> Galbraith [[email protected]] >> Sent: 15 June 2015 17:49 >> To: Signell, Richard >> Cc: [email protected]; 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 <[email protected]> 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, <[email protected]> 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 * >> ******************************************************* >> >> >> _______________________________________________ >> CF-metadata mailing list >> [email protected] >> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata >> ________________________________ >> 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 in >> an electronic records management system. >> ________________________________ >> > > > -- > ******************************************************* > * Nan Galbraith Information Systems Specialist * > * Upper Ocean Processes Group Mail Stop 29 * > * Woods Hole Oceanographic Institution * > * Woods Hole, MA 02543 (508) 289-2444 * > ******************************************************* > > > _______________________________________________ > CF-metadata mailing list > [email protected] > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata --------------------------------------- John Graybeal [email protected] 650-450-1853 skype: graybealski linkedin: http://www.linkedin.com/in/johngraybeal/ _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
