Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
I will add that:my reading of the CF standard is that coordinate (AKA axis, AKA dimension) variables must be numeric:
http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.4/cf-conventions.html#terminology says "coordinate variableWe use this term precisely as it is defined in section 2.3.1 of the NUG. It is a one-dimensional variable with the same name as its dimension [e.g., time(time)], and it is defined as a numeric data type with values that are ordered monotonically. Missing values are not allowed in coordinate variables. "
So, it would be great if THREDDS could extract the date coordinates from the file names and make a *numeric* time coordinate/axis/dimension variable.
I know that choosing the units brings up other issues. Perhaps they could be specified by the THREDDS administrator, or perhaps THREDDS could just always use units="seconds since 1970-01-01".
On 9/6/2011 3:37 PM, Roy Mendelssohn wrote:
Hi All: The following has come up in a problem we are working on:I'd like to aggregate files as in the example toward the bottom of: http://www.unidata.ucar.edu/software/netcdf/ncml/v2.2/Aggregation.html "Extracting date coordinates from the filename" The text in the tutorial states: 'The net effect is to add a coordinate variable, whose values are ISO 8601 formatted date/time Strings, with a _CoordinateAxisType of "Time" ..." Is there any for this variable to be a timestamp rather than date/time Strings?Listing the values is not that practical since there are over 3000 files and the number will grow. Thanks for any help. -Roy ********************** "The contents of this message do not reflect any position of the U.S. Government or NOAA." ********************** Roy Mendelssohn Supervisory Operations Research Analyst NOAA/NMFS Environmental Research Division Southwest Fisheries Science Center 1352 Lighthouse Avenue Pacific Grove, CA 93950-2097 e-mail: Roy.Mendelssohn@xxxxxxxx (Note new e-mail address) voice: (831)-648-9029 fax: (831)-648-8440 www: http://www.pfeg.noaa.gov/ "Old age and treachery will overcome youth and skill." "From those who have been given much, much will be expected" "the arc of the moral universe is long, but it bends toward justice" -MLK Jr. _______________________________________________ thredds mailing list thredds@xxxxxxxxxxxxxxxx For list information or to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/
-- Sincerely, Bob Simons IT Specialist Environmental Research Division NOAA Southwest Fisheries Science Center 1352 Lighthouse Ave Pacific Grove, CA 93950-2079 Phone: (831)658-3205 Fax: (831)648-8440 Email: bob.simons@xxxxxxxx The contents of this message are mine personally and do not necessarily reflect any position of the Government or the National Oceanic and Atmospheric Administration. <>< <>< <>< <>< <>< <>< <>< <>< <><
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