Hi all, Thanks a lot for your feedback. I think Roy's "4-steps" work plan is a great idea to keep things manageable. Thanks Roy! We, Marta and I, agree with your suggestions Roy and Jonathan. So, to summarize, for height parameters, we have:
- *sea_surface_wave_significant_height* Wave height is defined as the distance from a wave trough to the following wave crest. Significant wave height is a statistic computed from wave measurements collected during an observation period that approximates to the wave height that would be recorded visually by a human observer during that observation period. - *sea_surface_wave_maximum_height * Wave height is defined as the distance from a wave trough to the following wave crest. The maximum wave height is the greatest trough to crest distance measured during the observation period. - *sea_surface_wave_mean_height * Wave height is defined as the distance from a wave trough to the following wave crest. The average wave height is the average trough to crest distance measured during the observation period. - *sea_surface_wave_mean_height_of_highest_tenth* Wave height is defined as the distance from a wave trough to the following wave crest. The height of the highest tenth is defined as the average of the highest ten per cent of trough to crest distances measured during the observation period. - *sea_surface_wave_maximum_crest_height* The crest is the highest point of a wave. Crest height is the distance between the crest and the calm sea surface. Maximum crest height is the maximum value measured during the observation period. - *sea_surface_wave_maximum_trough_depth* The trough is the lowest point of a wave. Trough depth is the distance between the trough and the calm sea surface. Maximum trough depth is the maximum value measured during the observation period. - *sea_surface_wind_wave_significant_height* definition of "sea_surface_wave_significant_height" + Wind waves are the high frequency portion of a bimodal wave frequency spectrum. - *sea_surface_swell_wave_significant_height* definition of "sea_surface_wave_significant_height" + Swell waves are the low frequency portion of a bimodal wave frequency spectrum. - *sea_surface_primary_swell_wave_significant_height* definition of "sea_surface_wave_significant_height" + The primary swell wave is the most energetic wave in the low frequency portion of a bimodal wave frequency spectrum. - *sea_surface_secondary_swell_significant_height* definition of "sea_surface_wave_significant_height" + The secondary swell wave is the second most energetic wave in the low frequency portion of a bimodal wave frequency spectrum. Cheers, Elodie On 04/05/2016 15:14, Lowry, Roy K. wrote: > Dear Jonathan, > > Many thanks for your constructive response. As always your Standard Name > grammar is more precise than mine and so I am happy with your suggestions > providing Elodie and her colleagues have no problems. > > Cheers, Roy. > > -----Original Message----- > From: CF-metadata [mailto:[email protected]] On Behalf Of > Jonathan Gregory > Sent: 04 May 2016 14:05 > To: [email protected] > Subject: Re: [CF-metadata] Waves > > Dear Roy > > Thanks for redefining "wave height". That helps me understand! > >> - sea_surface_wave_average_height > Could this be "mean" instead of "average"? > >> - sea_surface_wave_height_of_highest_tenth > Given the definition, shouldn't this be > sea_surface_wave_mean_height_of_highest_tenth > >> - sea_surface_wave_height_of_the_highest_crest >> - sea_surface_wave_deepest_trough > The definitions of these are symmetrical but the names aren't. For symmetry > and consistency with other names, I'd suggest > sea_surface_wave_maximum_crest_height > sea_surface_wave_maximum_trough_depth > thus avoiding "wave height", because it's not a wave height in your new > definition. > > It is not unprecedented for "mean" and "maximum" to appear in standard names. > I understand why you prefer to do it this way, although using cell_methods > seems preferable to me. For significant wave height and mean of highest tenth > we would need new cell_methods, which aren't needed elsewhere, so the > argument is less strong for me in those cases. > > Best wishes > > Jonathan > _______________________________________________ > 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. > ________________________________ >
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