Hi, the definition that Alison is suggesting reads fine to me. Happy to see this moving forward!
Thanks, Matthias On Tue, 2015-10-13 at 11:17 +0000, [email protected] wrote: > Dear Matthias, > > I've had a quick look back at this discussion. The name and units are fine: > acoustic_signal_roundtrip_travel_time_in_sea_water (s). > > I see that there was some discussion of additional metadata that should be > provided in addition to the standard name itself, but no definition text was > really decided. It seems to me that the name itself is quite generic, > although in your particular application it is being used for roundtrip times > between the sea floor and the sea surface. Therefore, I am suggesting the > following definition, based on the mailing list discussion: > 'The quantity with standard name > acoustic_signal_roundtrip_travel_time_in_sea_water is the time taken for an > acoustic signal to propagate from the emitting instrument to a reflecting > surface and back again to the instrument. In the case of an instrument based > on the sea floor and measuring the roundtrip time to the sea surface, the > data are commonly used as a measure of ocean heat content.' > > Does that sound OK? If we can agree a definition then the name can be > accepted and included in the next standard name table update. > > Best wishes, > Alison > > ------ > Alison Pamment Tel: +44 1235 778065 > Centre for Environmental Data Analysis Email: > [email protected] > STFC Rutherford Appleton Laboratory > R25, 2.22 > Harwell Oxford, Didcot, OX11 0QX, U.K. > > > > > -----Original Message----- > > From: CF-metadata [mailto:[email protected]] On Behalf > > Of Matthias Lankhorst > > Sent: 12 October 2015 19:44 > > To: [email protected] > > Subject: [CF-metadata] looking to finalize standard name > > acoustic_signal_roundtrip_travel_time_in_sea_water > > > > Hi, > > > > in 2013, I started a brief discussion about a new standard name for > > inverted echo sounder data, see e-mail thread below. > > > > The proposed name would be: > > acoustic_signal_roundtrip_travel_time_in_sea_water > > > > It is duly listed on the CF website about standard names that are > > pending. Any chance this could be approved now? I do not recall any > > objections, but I am wondering why this is taking so long. Do I need to > > do anything else to get this approved speedily? > > > > Matthias > > > > > > > > > > [CF-metadata] standard_name for acoustic travel time from echo sounder > > Lowry, Roy K. rkl at bodc.ac.uk > > Thu May 30 07:45:54 MDT 2013 > > > > * Previous message: [CF-metadata] standard_name for acoustic > > travel time from echo sounder > > * Next message: [CF-metadata] standard_name for acoustic travel > > time from echo sounder > > * Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] > > > > ___________________________________________________________________ > > _____ > > Dear All, > > > > Of Matthias's suggestions I have a strong preference for a slight > > extension of roundtrip_acoustic_travel_time_in_sea_water, namely > > acoustic_signal_roundtrip_travel_time_in_sea_water. 'two-way' is a > > possible alternative to 'roundtrip' but I think the former carries > > unfortunate seismic semantic implications, so 'roundtrip' is better for > > IES. Including 'in_sea_water' is also essential to clearly distinguish > > it from seismic data. > > > > Cheers, Roy. > > > > > > > > ________________________________________ > > From: CF-metadata [cf-metadata-bounces at cgd.ucar.edu] On Behalf Of > > Matthias Lankhorst [mlankhorst at ucsd.edu] > > Sent: 30 May 2013 13:16 > > To: cf-metadata at cgd.ucar.edu > > Subject: [CF-metadata] standard_name for acoustic travel time from echo > > sounder > > > > Dear CF, > > > > I have oceanographic data from IES instruments (inverted echo sounder) > > that I > > would like to publish via OceanSITES in a CF-compliant form. The data in > > question are acoustic travel times from the echo sounding device. This > > means > > the time it took for the acoustic signal to run from the instrument (which > > sits on the seafloor) to the sea surface and back to the instrument. These > > data are commonly used as a proxy for ocean heat content. > > > > I don't think there is a suitable CF standard_name out there, and ask for > > your > > help in finding/creating one. Which of the following sound good? > > > > acoustic_travel_time > > vertical_acoustic_travel_time > > roundtrip_acoustic_travel_time_in_sea_water > > echo_sounder_acoustic_travel_time > > > > ...I could think of a couple more combinations using the words above, but > > would like to hear other people's opinions. > > > > The canonical units would obviously be seconds. > > > > I assume the data would need some additional description to denote the > > vertical extent of the measurement, such as cell_bounds and > > cell_methods='Z:sum'. > > > > Any comments? > > > > Kind regards, Matthias > > > > > > > > -- > > _______________________________________ > > > > Dr. Matthias Lankhorst > > Scripps Institution of Oceanography > > 9500 Gilman Drive, Mail Code 0230 > > La Jolla, CA 92093-0230 > > USA > > > > Phone: +1 858 822 5013 > > Fax: +1 858 534 9820 > > E-Mail: [email protected] > > http://www-pord.ucsd.edu/~mlankhorst/ > > > > > > > > _______________________________________________ > > CF-metadata mailing list > > [email protected] > > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata -- _______________________________________ Dr. Matthias Lankhorst Scripps Institution of Oceanography 9500 Gilman Drive, Mail Code 0230 La Jolla, CA 92093-0230 USA Phone: +1 858 822 5013 Fax: +1 858 534 9820 E-Mail: [email protected] http://www-pord.ucsd.edu/~mlankhorst/ _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
