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On 09/19/2012 06:00 PM, Aleksandar Jelenak wrote: > I am soliciting your comments about the 23 new standard names given here: > > http://wiki.esipfed.org/index.php/Standard_Names_For_Satellite_Observations platform_zenith_angle seems to already be in. The terminology for a few seems perhaps a bit satellite-specific for normal CF names - e.g. platform_scan_angle might be more generically and usefully described using a phrasing with "nadir" rather than "scan". The central_wavelength, etc seem useful, but perhaps the description might be made more generic by not referring to bands, or the name made clearly specific to banded-sensors (e.g. sensor_band_central_wavelength like the sensor_band_identifier) The ISO time one is likely to get thrown out - I think one would just be pointed to the standard name "time" and the time coordinate chapter (http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.6/ch04s04.html). This allows one to specify most of what you'd want, if not in the format you want, and you don't have to use it as a coordinate variable. I also vaguely remember some big arguments on the CF list about ISO time (check the archive). time_interval may fare better - not sure! Seems like this could be done with a standard name modifier, but there doesn't seem to be one for differences. The basic toa ones look good, though I'm a bit unsure about the naming of those referring to areas - this might be just that it's the same physical quantity (which the standard name represents) at a particular location, with the only difference being the intended use / sensor-specific data gathering conditions. I guess this makes sense though I don't know if the CF guys would go for it. Either way, it might be nice to beef up the descriptions a bit for non-specialists and perhaps remove the implicit requirement for a pixel-based sensor. e.g. "The mean of all toa_outgoing_spectral_radiance observations made within a collocation target. Collocation target is an area on the Earth's surface at which comparable? observations from at least two sensors are collected. Its size is defined by the observation with the largest field of view footprint.". I think this misses some of the subtleties, but perhaps conveys my point. Cheers, Mike. <br /> <hr /> <p><font face="Arial" size="1"> Plymouth Marine Laboratory<br /> Registered Office: <br /> Prospect Place<br /> The Hoe<br /> Plymouth PL1 3DH </font></p> <p><font face="Arial" size="1">Website: <a href="http://www.pml.ac.uk";>www.pml.ac.uk</a> <br /> <a href="http://www.pml.ac.uk/pdf/PML%20Annual%20Review%202011_2.pdf";>Click here for the latest PML Annual Review</a> <br /> Registered Charity No. 1091222<br /> PML is a company limited by guarantee<br /> registered in England & Wales<br /> company number 4178503</font></p> <p><font face="Arial" size="1" color="green">Please think before you print.</font></p> <hr /> <p><font face="Arial" size="1">This e-mail, its content and any file attachments are confidential.</font></p> <p><font face="Arial" size="1">If you have received this e-mail in error please do not copy, disclose it to any third party or use the contents or attachments in any way. Please notify the sender by replying to this e-mail or e-mail forinfo@xxxxxxxxx and then delete the email without making any copies or using it in any other way.</font></p> <p><font face="Arial" size="1">The content of this message may contain personal views which are not the views of Plymouth Marine Laboratory unless specifically stated.</font></p> <p><font face="Arial" size="1">You are reminded that e-mail communications are not secure and may contain viruses. Plymouth Marine Laboratory accepts no liability for any loss or damage which may be caused by viruses.</font></p> <hr /> <br /> <br />
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