NOTE: The cf-satellite mailing list is no longer active. The list archives are made available for historical reasons.
Hi, The EUMETSAT Data Centre Archive has developed a SEVIRI MSG15 data sets to support GSICS. GSICS (Global Space-based Inter-Calibration System) is a WMO and CGMS initiative to improving and harmonise the quality of observations from operational weather and environmental satellites of the Global Observing System (GOS). Examples of these SEVIRI MSG15 "GSICS" data sets can be found under the following EUMETSAT THREDDS server. http://gsics.eumetsat.int/thredds/catalog/msg2-seviri/catalog.html The data sets have been developed using Unidata guidelines for gridded data i.e. the data sets can be loaded into Unidata tools and they will be geo-located correctly. The organisation of these NetCDF files would be relevant for discussion here and we (EUMETSAT & the GSICS partners) are very interested in developing CF conventions applicable for GEO and LEO satellites. Examples of LEO NetCDF data sets can also be found on the above server. We have started preparing some guidelines for NetCDF, see: https://gsics.nesdis.noaa.gov/wiki/Development/NetcdfConvention For more information on GSICS, please take a look at: http://gsics.wmo.int/ http://www.star.nesdis.noaa.gov/smcd/GCC/ http://www.eumetsat.int/Home/Main/AboutEUMETSAT/InternationalRelations/CGMS/SP_1226312587804?l=en?l=en If you have any questions, please don't hesitate in contacting me. Regards, Peter Miu Data Services Operations Engineer EUMETSAT EUMETSAT Allee 1 64295 Darmstadt Germany Tel: +49 6151 807 3290 EUMETSAT URL: http://www.eumetsat.int Data Centre URL: http://archive.eumetsat.int -----Original Message----- From: cf-satellite-bounces@xxxxxxxxxxxxxxxx [mailto:cf-satellite-bounces@xxxxxxxxxxxxxxxx] On Behalf Of cf-satellite-request@xxxxxxxxxxxxxxxx Sent: Wednesday, October 19, 2011 8:00 PM To: cf-satellite@xxxxxxxxxxxxxxxx Subject: cf-satellite Digest, Vol 14, Issue 1 Send cf-satellite mailing list submissions to cf-satellite@xxxxxxxxxxxxxxxx To subscribe or unsubscribe via the World Wide Web, visit http://mailman.unidata.ucar.edu/mailman/listinfo/cf-satellite or, via email, send a message with subject or body 'help' to cf-satellite-request@xxxxxxxxxxxxxxxx You can reach the person managing the list at cf-satellite-owner@xxxxxxxxxxxxxxxx When replying, please edit your Subject line so it is more specific than "Re: Contents of cf-satellite digest..." Today's Topics: 1. Re: very rough draft of way to represent band (Martin Raspaud) 2. Re: very rough draft of way to represent band (Martin Raspaud) ---------------------------------------------------------------------- Message: 1 Date: Wed, 19 Oct 2011 08:42:07 +0200 From: Martin Raspaud <martin.raspaud@xxxxxxx> To: <cf-satellite@xxxxxxxxxxxxxxxx> Subject: Re: [cf-satellite] very rough draft of way to represent band Message-ID: <4E9E713F.9000502@xxxxxxx> Content-Type: text/plain; charset="utf-8" -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 27/07/11 00:06, John Caron wrote: > Im thinking the way forward for now might be to follow Chris' idea of > specific examples. Then we can see what the real issues are. > > So Id invite anyone to submit examples, and we can work out the CDL. Hi all, Finally catching up, here is an example of meteosat 9/seviri data. Hope that helps ! Best regards, Martin $ ncdump -h seviri.nc netcdf seviri { dimensions: y1000mreflective = 3600 ; x1000mreflective = 9000 ; band1000mreflective = 1 ; y3000memissive = 1200 ; x3000memissive = 3000 ; band3000memissive = 8 ; y3000mreflective = 1200 ; x3000mreflective = 3000 ; band3000mreflective = 3 ; nv = 2 ; variables: short band_data1000mreflective(y1000mreflective, x1000mreflective, band1000mreflective) ; band_data1000mreflective:grid_mapping = "seviri_area_3600x9000" ; band_data1000mreflective:valid_range = -32767L, 32767L ; band_data1000mreflective:standard_name = "band_data" ; band_data1000mreflective:resolution = 1000.134348869 ; short band_data3000memissive(y3000memissive, x3000memissive, band3000memissive) ; band_data3000memissive:grid_mapping = "seviri_area_1200x3000" ; band_data3000memissive:valid_range = -32767L, 32767L ; band_data3000memissive:standard_name = "band_data" ; band_data3000memissive:resolution = 3000.403165817 ; short band_data3000mreflective(y3000mreflective, x3000mreflective, band3000mreflective) ; band_data3000mreflective:grid_mapping = "seviri_area_1200x3000" ; band_data3000mreflective:valid_range = -32766L, 32766L ; band_data3000mreflective:standard_name = "band_data" ; band_data3000mreflective:resolution = 3000.403165817 ; string bandname1000mreflective(band1000mreflective) ; bandname1000mreflective:standard_name = "band_name" ; string bandname3000memissive(band3000memissive) ; bandname3000memissive:standard_name = "band_name" ; string bandname3000mreflective(band3000mreflective) ; bandname3000mreflective:standard_name = "band_name" ; double nominal_wavelength1000mreflective(band1000mreflective) ; nominal_wavelength1000mreflective:bounds = "wl_bnds1000mreflective" ; nominal_wavelength1000mreflective:standard_name = "radiation_wavelength" ; nominal_wavelength1000mreflective:units = "um" ; double nominal_wavelength3000memissive(band3000memissive) ; nominal_wavelength3000memissive:bounds = "wl_bnds3000memissive" ; nominal_wavelength3000memissive:standard_name = "radiation_wavelength" ; nominal_wavelength3000memissive:units = "um" ; double nominal_wavelength3000mreflective(band3000mreflective) ; nominal_wavelength3000mreflective:bounds = "wl_bnds3000mreflective" ; nominal_wavelength3000mreflective:standard_name = "radiation_wavelength" ; nominal_wavelength3000mreflective:units = "um" ; double offset1000mreflective(band1000mreflective) ; offset1000mreflective:standard_name = "linear_calibration_offset" ; double offset3000memissive(band3000memissive) ; offset3000memissive:standard_name = "linear_calibration_offset" ; double offset3000mreflective(band3000mreflective) ; offset3000mreflective:standard_name = "linear_calibration_offset" ; double scale1000mreflective(band1000mreflective) ; scale1000mreflective:standard_name = "linear_calibration_scale_factor" ; double scale3000memissive(band3000memissive) ; scale3000memissive:standard_name = "linear_calibration_scale_factor" ; double scale3000mreflective(band3000mreflective) ; scale3000mreflective:standard_name = "linear_calibration_scale_factor" ; int64 seviri_area_1200x3000 ; seviri_area_1200x3000:grid_mapping_name = "vertical_perspective" ; seviri_area_1200x3000:latitude_of_projection_origin = 0. ; seviri_area_1200x3000:perspective_point_height = 35785831. ; seviri_area_1200x3000:semi_major_axis = 6378169. ; seviri_area_1200x3000:longitude_of_projection_origin = 0. ; seviri_area_1200x3000:semi_minor_axis = 6356583.8 ; int64 seviri_area_3600x9000 ; seviri_area_3600x9000:grid_mapping_name = "vertical_perspective" ; seviri_area_3600x9000:latitude_of_projection_origin = 0. ; seviri_area_3600x9000:perspective_point_height = 35785831. ; seviri_area_3600x9000:semi_major_axis = 6378169. ; seviri_area_3600x9000:longitude_of_projection_origin = 0. ; seviri_area_3600x9000:semi_minor_axis = 6356583.8 ; double time ; time:long_name = "Nominal time of the image" ; time:standard_name = "time" ; time:units = "seconds since 1970-01-01 00:00:00" ; string units1000mreflective(band1000mreflective) ; units1000mreflective:standard_name = "band_units" ; string units3000memissive(band3000memissive) ; units3000memissive:standard_name = "band_units" ; string units3000mreflective(band3000mreflective) ; units3000mreflective:standard_name = "band_units" ; double wl_bnds1000mreflective(band1000mreflective, nv) ; double wl_bnds3000memissive(band3000memissive, nv) ; double wl_bnds3000mreflective(band3000mreflective, nv) ; double x1000mreflective(x1000mreflective) ; x1000mreflective:long_name = "x coordinate of projection" ; x1000mreflective:standard_name = "projection_x_coordinate" ; x1000mreflective:units = "m" ; double x3000memissive(x3000memissive) ; x3000memissive:long_name = "x coordinate of projection" ; x3000memissive:standard_name = "projection_x_coordinate" ; x3000memissive:units = "m" ; double x3000mreflective(x3000mreflective) ; x3000mreflective:long_name = "x coordinate of projection" ; x3000mreflective:standard_name = "projection_x_coordinate" ; x3000mreflective:units = "m" ; double y1000mreflective(y1000mreflective) ; y1000mreflective:long_name = "y coordinate of projection" ; y1000mreflective:standard_name = "projection_y_coordinate" ; y1000mreflective:units = "m" ; double y3000memissive(y3000memissive) ; y3000memissive:long_name = "y coordinate of projection" ; y3000memissive:standard_name = "projection_y_coordinate" ; y3000memissive:units = "m" ; double y3000mreflective(y3000mreflective) ; y3000mreflective:long_name = "y coordinate of projection" ; y3000mreflective:standard_name = "projection_y_coordinate" ; y3000mreflective:units = "m" ; // global attributes: :satellite_name = "meteosat" ; :service = "" ; :title = "Meteosat09 satellite, Seviri instrument." ; :satellite_number = 9L ; :comments = "No comment." ; :Conventions = "CF-1.4" ; :references = "Pytroll - http://pytroll.org"; ; :instrument_name = "seviri" ; :institution = "Original data disseminated by EumetCast." ; :history = "2011-10-19T06:36:44.663765 - HRIT/LRIT data read by pytroll/mipp.\n2011-10-19T06:36:57.270975 - Saved as netcdf4/cf by pytroll/mpop." ; } -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (GNU/Linux) Comment: Using GnuPG with Red Hat - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJOnnE/AAoJEBdvyODiyJI46N0IANJlRJdwu3BqBIkYmuzWqFlG A1DLha81XOFyMO1C7saR0cApYsXIDowsltQqDhIPOuTR0/CWCBmrHo0uhWKmvFV1 xGcxZ1z27Z4zuYeLiLFlJhplvHUEp1kLUxpX+gzUSPdf1Y+pXYRNLydclQmXvpD1 5PSQF34bFuEaZSOy371YW6LUH0sI8aFKHZq7W2y3vC6igo594olWu98EzCkIq3cR u0SlyupHOfn/WBDqBfLJf+eavCGYNDTHohv4YWlAXCnNtmIfz+8TCuzHLysta8/r LI5xBM7jgTRVUciWTcMD1wkQdJ1X1/yEjGbJ0QP4ee+yfM0NoJHk2F7p76ybLy4= =Q0oA -----END PGP SIGNATURE----- -------------- next part -------------- A non-text attachment was scrubbed... Name: martin_raspaud.vcf Type: text/x-vcard Size: 292 bytes Desc: not available URL: <http://mailman.unidata.ucar.edu/mailing_lists/archives/cf-satellite/attachments/20111019/6e05016c/attachment.vcf> ------------------------------ Message: 2 Date: Wed, 19 Oct 2011 09:16:00 +0200 From: Martin Raspaud <martin.raspaud@xxxxxxx> To: <cf-satellite@xxxxxxxxxxxxxxxx> Subject: Re: [cf-satellite] very rough draft of way to represent band Message-ID: <4E9E7930.3020300@xxxxxxx> Content-Type: text/plain; charset="utf-8" -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 19/10/11 08:42, Martin Raspaud wrote: > On 27/07/11 00:06, John Caron wrote: > >> Im thinking the way forward for now might be to follow Chris' idea of >> specific examples. Then we can see what the real issues are. > >> So Id invite anyone to submit examples, and we can work out the CDL. > > Hi all, > > Finally catching up, here is an example of meteosat 9/seviri data. Hope > that helps ! Maybe I ought to clarify a bit: - - This data hold both visible and IR channels, ie reflective and emissive - - One of the channels is higher resolution - - no specific polarization - - the variable names are automatically generated from the resolution and the type of channel (reflective or emissive) - - the standard_name we use now for bands is "band_data". Did we agree on something different ? - - we are using cells for describing the bandwidth Best regards, Martin > $ ncdump -h seviri.nc > netcdf seviri { > dimensions: > y1000mreflective = 3600 ; > x1000mreflective = 9000 ; > band1000mreflective = 1 ; > y3000memissive = 1200 ; > x3000memissive = 3000 ; > band3000memissive = 8 ; > y3000mreflective = 1200 ; > x3000mreflective = 3000 ; > band3000mreflective = 3 ; > nv = 2 ; > variables: > short band_data1000mreflective(y1000mreflective, x1000mreflective, > band1000mreflective) ; > band_data1000mreflective:grid_mapping = "seviri_area_3600x9000" > ; > band_data1000mreflective:valid_range = -32767L, 32767L ; > band_data1000mreflective:standard_name = "band_data" ; > band_data1000mreflective:resolution = 1000.134348869 ; > short band_data3000memissive(y3000memissive, x3000memissive, > band3000memissive) ; > band_data3000memissive:grid_mapping = "seviri_area_1200x3000" ; > band_data3000memissive:valid_range = -32767L, 32767L ; > band_data3000memissive:standard_name = "band_data" ; > band_data3000memissive:resolution = 3000.403165817 ; > short band_data3000mreflective(y3000mreflective, x3000mreflective, > band3000mreflective) ; > band_data3000mreflective:grid_mapping = "seviri_area_1200x3000" > ; > band_data3000mreflective:valid_range = -32766L, 32766L ; > band_data3000mreflective:standard_name = "band_data" ; > band_data3000mreflective:resolution = 3000.403165817 ; > string bandname1000mreflective(band1000mreflective) ; > bandname1000mreflective:standard_name = "band_name" ; > string bandname3000memissive(band3000memissive) ; > bandname3000memissive:standard_name = "band_name" ; > string bandname3000mreflective(band3000mreflective) ; > bandname3000mreflective:standard_name = "band_name" ; > double nominal_wavelength1000mreflective(band1000mreflective) ; > nominal_wavelength1000mreflective:bounds = > "wl_bnds1000mreflective" ; > nominal_wavelength1000mreflective:standard_name = > "radiation_wavelength" ; > nominal_wavelength1000mreflective:units = "um" ; > double nominal_wavelength3000memissive(band3000memissive) ; > nominal_wavelength3000memissive:bounds = "wl_bnds3000memissive" > ; > nominal_wavelength3000memissive:standard_name = > "radiation_wavelength" ; > nominal_wavelength3000memissive:units = "um" ; > double nominal_wavelength3000mreflective(band3000mreflective) ; > nominal_wavelength3000mreflective:bounds = > "wl_bnds3000mreflective" ; > nominal_wavelength3000mreflective:standard_name = > "radiation_wavelength" ; > nominal_wavelength3000mreflective:units = "um" ; > double offset1000mreflective(band1000mreflective) ; > offset1000mreflective:standard_name = > "linear_calibration_offset" ; > double offset3000memissive(band3000memissive) ; > offset3000memissive:standard_name = "linear_calibration_offset" > ; > double offset3000mreflective(band3000mreflective) ; > offset3000mreflective:standard_name = > "linear_calibration_offset" ; > double scale1000mreflective(band1000mreflective) ; > scale1000mreflective:standard_name = > "linear_calibration_scale_factor" ; > double scale3000memissive(band3000memissive) ; > scale3000memissive:standard_name = > "linear_calibration_scale_factor" ; > double scale3000mreflective(band3000mreflective) ; > scale3000mreflective:standard_name = > "linear_calibration_scale_factor" ; > int64 seviri_area_1200x3000 ; > seviri_area_1200x3000:grid_mapping_name = > "vertical_perspective" ; > seviri_area_1200x3000:latitude_of_projection_origin = 0. ; > seviri_area_1200x3000:perspective_point_height = 35785831. ; > seviri_area_1200x3000:semi_major_axis = 6378169. ; > seviri_area_1200x3000:longitude_of_projection_origin = 0. ; > seviri_area_1200x3000:semi_minor_axis = 6356583.8 ; > int64 seviri_area_3600x9000 ; > seviri_area_3600x9000:grid_mapping_name = > "vertical_perspective" ; > seviri_area_3600x9000:latitude_of_projection_origin = 0. ; > seviri_area_3600x9000:perspective_point_height = 35785831. ; > seviri_area_3600x9000:semi_major_axis = 6378169. ; > seviri_area_3600x9000:longitude_of_projection_origin = 0. ; > seviri_area_3600x9000:semi_minor_axis = 6356583.8 ; > double time ; > time:long_name = "Nominal time of the image" ; > time:standard_name = "time" ; > time:units = "seconds since 1970-01-01 00:00:00" ; > string units1000mreflective(band1000mreflective) ; > units1000mreflective:standard_name = "band_units" ; > string units3000memissive(band3000memissive) ; > units3000memissive:standard_name = "band_units" ; > string units3000mreflective(band3000mreflective) ; > units3000mreflective:standard_name = "band_units" ; > double wl_bnds1000mreflective(band1000mreflective, nv) ; > double wl_bnds3000memissive(band3000memissive, nv) ; > double wl_bnds3000mreflective(band3000mreflective, nv) ; > double x1000mreflective(x1000mreflective) ; > x1000mreflective:long_name = "x coordinate of projection" ; > x1000mreflective:standard_name = "projection_x_coordinate" ; > x1000mreflective:units = "m" ; > double x3000memissive(x3000memissive) ; > x3000memissive:long_name = "x coordinate of projection" ; > x3000memissive:standard_name = "projection_x_coordinate" ; > x3000memissive:units = "m" ; > double x3000mreflective(x3000mreflective) ; > x3000mreflective:long_name = "x coordinate of projection" ; > x3000mreflective:standard_name = "projection_x_coordinate" ; > x3000mreflective:units = "m" ; > double y1000mreflective(y1000mreflective) ; > y1000mreflective:long_name = "y coordinate of projection" ; > y1000mreflective:standard_name = "projection_y_coordinate" ; > y1000mreflective:units = "m" ; > double y3000memissive(y3000memissive) ; > y3000memissive:long_name = "y coordinate of projection" ; > y3000memissive:standard_name = "projection_y_coordinate" ; > y3000memissive:units = "m" ; > double y3000mreflective(y3000mreflective) ; > y3000mreflective:long_name = "y coordinate of projection" ; > y3000mreflective:standard_name = "projection_y_coordinate" ; > y3000mreflective:units = "m" ; > > // global attributes: > :satellite_name = "meteosat" ; > :service = "" ; > :title = "Meteosat09 satellite, Seviri instrument." ; > :satellite_number = 9L ; > :comments = "No comment." ; > :Conventions = "CF-1.4" ; > :references = "Pytroll - http://pytroll.org"; ; > :instrument_name = "seviri" ; > :institution = "Original data disseminated by EumetCast." ; > :history = "2011-10-19T06:36:44.663765 - HRIT/LRIT data read by > pytroll/mipp.\n2011-10-19T06:36:57.270975 - Saved as netcdf4/cf by > pytroll/mpop." ; > } _______________________________________________ cf-satellite mailing list cf-satellite@xxxxxxxxxxxxxxxx For list information or to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (GNU/Linux) Comment: Using GnuPG with Red Hat - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJOnnkwAAoJEBdvyODiyJI4e3EIAKOGTXUOIiGQgLt7mGx+GTBy XsKu5YsMgbGoHCD3NRQqVgOnUj+kE9djy1GIxYd8xitfDFtx5JLboly2DYQqpCbX y+GvrzapnzDQkiVQMZh6Hch2rGL+rVaL0E/vCMOe2UuD48r67qhyERp6/09+rz2I P4pExUurW9rnLuKOcDKLnlr737rMBvDAHPcElvz92eQ6MzvOl0Br6OmJCYuZi4Xl kJq8rhiigG8izdXJg0+zoz2nXh3we0IfDUwYng4Sl+hexO2jLL9FL7lf7A72aJIb gVm9yqDa6XExtaLrvZ6h7KNAUJLGyNLj/sZTBbMPjFCKZDlpWsx7BLBtZeyTjBk= =q3+N -----END PGP SIGNATURE----- -------------- next part -------------- A non-text attachment was scrubbed... Name: martin_raspaud.vcf Type: text/x-vcard Size: 292 bytes Desc: not available URL: <http://mailman.unidata.ucar.edu/mailing_lists/archives/cf-satellite/attachments/20111019/9ab8db68/attachment.vcf> ------------------------------ _______________________________________________ cf-satellite mailing list cf-satellite@xxxxxxxxxxxxxxxx For list information or to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/ End of cf-satellite Digest, Vol 14, Issue 1 *******************************************
cf-satellite archives: