Hi Jonathon and CF metadata list,
Summarising our discussions thus far we propose:
2 new Cell methods:
root_mean_square
mean_of_upper_decile
and these new standard names:
sea_surface_wave_height (common concept)
sea_surface_wave_mean_crest_period
sea_surface_wave_significant_wave_period
sea_surface_wave_period_at_second_largest_peak_of_variance_spectral_density
sea_surface_wave_variance_spectral_density_zeroth_frequency_moment
sea_surface_wave_root_mean_square_amplitude_from_variance_spectral_density
The sea_surface_wave_height is a common concept (standard name) which may be
qualified by a cell_method attribute to realise the actual variable. The
sea_surface_wave_height
when combined with a cell method of:
time: mean
time: maximum
time: root_mean_square
time: mean_of_upper_decile
will describe the statistical wave height variables:
sea_surface_mean_wave_height
sea_surface_maximum_wave_height
sea_surface_root_mean_square_wave_height
sea_surface_wave_mean_of_highest_one_tenth_waves
respectively.
I have attached a spreadsheet which contains the names, descriptions and units
of the variables proposed.
Looking forward to getting final approval to add these to the CF name lists.
Andrew Walsh
Data Facilitator AODN
----- Original Message -----
From: "Jonathan Gregory" <j.m.gregory at reading.ac.uk>
To: "andrew walsh" <awalsh at metoc.gov.au>
Cc: <cf-metadata at cgd.ucar.edu>; "Mark Kulmar" <Mark.Kulmar at mhl.nsw.gov.au>
Sent: Wednesday, October 13, 2010 20:21
Subject: [CF-metadata] Seeking new CF standard names (9) for sea surface wave
parameters
> Dear Andrew
>
>> Yes, but depends on the community (list) accepting the idea of having a
>
> Good. I think we are agreed then to propose these new cell methods:
>
> root_mean_square
> mean_of_upper_decile
>
> and these new standard names:
>
> sea_surface_wave_height
> sea_surface_wave_mean_crest_period
> sea_surface_wave_significant_wave_period
> sea_surface_wave_period_at_second_largest_peak_of_variance_spectral_density
> sea_surface_wave_variance_spectral_density_zeroth_frequency_moment
> sea_surface_wave_root_mean_square_amplitude_from_variance_spectral_density
>
> I agree that the last will avoid confusion with the RMS of wave height.
>
> I agree also that this depends on users being comfortable with the concepts
> being split into two attributes, in accordance with the usual CF practice,
> but deciding on how to join them up as common_concepts will help. Comments
> from others would help. It is good that Roy supports this compromise.
>
> Best wishes
>
> Jonathan
>
>
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Received on Wed Oct 20 2010 - 18:09:29 BST
