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[CF-metadata] standard_name for acoustic travel time from echo sounder

From: Matthias Lankhorst <mlankhorst>
Date: Fri, 6 Dec 2013 11:41:33 -0800

Hi all,

I had proposed this new standard name about half a year ago. It seems
everybody participating in the discussion was happy with:

acoustic_signal_roundtrip_travel_time_in_sea_water

Canonical units would be seconds.

I gather this standard name has not moved beyond the proposal stage yet. Can
we make it official now?

Matthias


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From: Lowry, Roy K. rkl at bodc.ac.uk
Thu May 30 07:45:54 MDT 2013

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: mlankhorst at ucsd.edu
 http://www-pord.ucsd.edu/~mlankhorst/
Received on Fri Dec 06 2013 - 12:41:33 GMT

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