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Create folder with exemplar - create minimal.cdl (#171)
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* Create folder with exemplar - create minimal.cdl

Here I propose the minimal .cdl

I've removed everything that is not mandatory.
This is align with the status of the format the 14th of February 2024 with downgrading of PARAMETER and SENSOR informations.

Impact should be low as the agreement on what is mandatory in OG.1.0 is pretty weak. But a final check is necessary before release.

* reply to comment on minimal cdl

File name change to *_R
add ' ;' where missing
remove PARAMETER as not mandatory
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@vturpin
vturpin authored Mar 12, 2024
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netcdf sp041_20191205T1757_R {
dimensions:
N_MEASUREMENTS = 25 ;
variables:
double LATITUDE_GPS(N_MEASUREMENTS) ;
LATITUDE_GPS:long_name = "latitude of each GPS location" ;
LATITUDE_GPS:standard_name = "latitude" ;
LATITUDE_GPS:units = "degrees_north" ;
LATITUDE_GPS:_FillValue = -9999.9 ;
LATITUDE_GPS:valid_max = "90" ;
LATITUDE_GPS:valid_min = "-90" ;
LATITUDE_GPS:ancillary_variables = "LATITUDE_GPS_QC" ;
double LONGITUDE_GPS(N_MEASUREMENTS) ;
LONGITUDE_GPS:long_name = "longitude of each GPS location" ;
LONGITUDE_GPS:standard_name = "longitude" ;
LONGITUDE_GPS:units = "degrees_east" ;
LONGITUDE_GPS:_FillValue = -9999.9 ;
LONGITUDE_GPS:valid_max = "180" ;
LONGITUDE_GPS:valid_min = "-180" ;
LONGITUDE_GPS:ancillary_variables = "LONGITUDE_GPS_QC" ;
double TIME_GPS(N_MEASUREMENTS) ;
TIME_GPS:long_name = "time of each GPS location" ;
TIME_GPS:calendar = "gregorian" ;
TIME_GPS:units = "seconds since 1970-01-01T00:00:00Z" ;
TIME_GPS:_FillValue = -1. ;
TIME_GPS:valid_min = 1e9 ;
TIME_GPS:valid_max = 4e9 ;
TIME_GPS:ancillary_variables = "TIME_GPS_QC" ;
double LATITUDE(N_MEASUREMENTS) ;
LATITUDE:long_name = "latitude of each measurement and GPS location" ;
LATITUDE:standard_name = "latitude" ;
LATITUDE:units = "degrees_north" ;
LATITUDE:_FillValue = -9999.9 ;
LATITUDE:valid_min = "-90" ;
LATITUDE:valid_max = "90" ;
LATITUDE:ancillary_variables = "LATITUDE_GPS_QC" ;
LATITUDE:interpolation_methodology = "TBD" ;
LATITUDE:interpolation_methodology_vocabulary = "TBD" ;
LATITUDE:interpolation_methodology_doi = "TBD" ;
double LONGITUDE(N_MEASUREMENTS) ;
LONGITUDE:long_name = "longitude of each measurements and GPS locations" ;
LONGITUDE:standard_name = "longitude" ;
LONGITUDE:units = "degrees_east" ;
LONGITUDE:_FillValue = -9999.9 ;
LONGITUDE:valid_min = "-180" ;
LONGITUDE:valid_max = "180" ;
LONGITUDE:ancillary_variables = "LONGITUDE_GPS_QC" ;
LONGITUDE:interpolation_methodology = "TBD" ;
LONGITUDE:interpolation_methodology_vocabulary = "TBD" ;
LONGITUDE:interpolation_methodology_doi = "TBD" ;
double TIME(N_MEASUREMENTS) ;
TIME:long_name = "time of measurement and GPS location" ;
TIME:calendar = "gregorian" ;
TIME:units = "seconds since 1970-01-01T00:00:00Z" ;
TIME:_FillValue = -1. ;
TIME:valid_min = 1e9 ;
TIME:valid_max = 4e9 ;
TIME:interpolation_methodology = "TBD" ;
TIME:interpolation_methodology_vocabulary = "TBD" ;
TIME:interpolation_methodology_doi = "TBD" ;
string TRAJECTORY ;
TRAJECTORY:cf_role = "trajectory_id";
TRAJECTORY:long_name = "trajectory name";
string PLATFORM_MODEL ;
PLATFORM_MODEL:long_name = "model of the glider" ;
PLATFORM_MODEL:platform_model_vocabulary = "http://vocab.nerc.ac.uk/collection/B76/current/";
string WMO_IDENTIFIER ;
WMO_IDENTIFIER:long_name = "wmo id" ;
double DEPLOYMENT_TIME ;
DEPLOYMENT_TIME:long_name = "date of deployment" ;
DEPLOYMENT_TIME:standard_name = "time" ;
DEPLOYMENT_TIME:calendar = "gregorian" ;
DEPLOYMENT_TIME:units = "seconds since 1970-01-01T00:00:00Z" ;
double DEPLOYMENT_LATITUDE ;
DEPLOYMENT_LATITUDE:long_name = "latitude of deployment" ;
DEPLOYMENT_LATITUDE:standard_name = "latitude" ;
DEPLOYMENT_LATITUDE:units = "degrees_north" ;
DEPLOYMENT_LATITUDE:valid_max = "90" ;
DEPLOYMENT_LATITUDE:valid_min = "-90" ;
double DEPLOYMENT_LONGITUDE ;
DEPLOYMENT_LONGITUDE:long_name = "longitude of deployment" ;
DEPLOYMENT_LONGITUDE:standard_name = "longitude" ;
DEPLOYMENT_LONGITUDE:units = "degrees_east" ;
DEPLOYMENT_LONGITUDE:valid_max = "180" ;
DEPLOYMENT_LONGITUDE:valid_min = "-180" ;
float PRES(N_MEASUREMENTS) ;
PRES:long_name = "Pressure" ;
PRES:standard_name = "sea_water_pressure" ;
PRES:vocabulary = "http://vocab.nerc.ac.uk/collection/OG1/current/PRES/";
PRES:_FillValue = -9999.9 ;
PRES:units = "dbar" ;
PRES:ancillary_variables = "PRES_QC" ;
PRES:coordinates = "LATITUDE, LONGITUDE, DEPTH, TIME" ;
float DEPTH(N_MEASUREMENTS) ;
DEPTH:long_name = "Depth" ;
DEPTH:standard_name = "depth" ;
DEPTH:vocabulary = "http://vocab.nerc.ac.uk/collection/OG1/current/DEPTH/";
DEPTH:_FillValue = NaN ;
DEPTH:units = "m" ;
DEPTH:ancillary_variables = "DEPTH_QC" ;
DEPTH:coordinates = "LATITUDE, LONGITUDE, DEPTH, TIME" ;
float TEMP(N_MEASUREMENTS) ;
TEMP:long_name = "Sea Water Temperature" ;
TEMP:standard_name = "sea_water_temperature" ;
TEMP:vocabulary = "http://vocab.nerc.ac.uk/collection/OG1/current/TEMP/";
TEMP:_FillValue = -9999.9 ;
TEMP:units = "Celsius" ;
TEMP:ancillary_variables = "TEMP_QC" ;
TEMP:coordinates = "LATITUDE, LONGITUDE, DEPTH, TIME" ;
float PSAL(N_MEASUREMENTS) ;
PSAL:long_name = "Sea Water Salinity" ;
PSAL:standard_name = "sea_water_practical_salinity" ;
PSAL:vocabulary = "http://vocab.nerc.ac.uk/collection/OG1/current/PSAL/" ;
PSAL:_FillValue = NaN ;
PSAL:units = "1" ;
PSAL:ancillary_variables = "PSAL_QC" ;
PSAL:coordinates = "LATITUDE, LONGITUDE, DEPTH, TIME" ;
float CHLA(N_MEASUREMENTS) ;
CHLA:long_name = "Chlorophyll-a concentration" ;
CHLA:standard_name = "mass_concentration_of_chlorophyll_a_in_sea_water" ;
CHLA:vocabulary = "http://vocab.nerc.ac.uk/collection/OG1/current/CHLA/" ;
CHLA:_FillValue = NaN ;
CHLA:units = "mg m-3" ;
CHLA:ancillary_variables = "CHLA_QC" ;
CHLA:coordinates = "LATITUDE, LONGITUDE, DEPTH, TIME" ;
float DOXY(N_MEASUREMENTS) ;
DOXY:long_name = "Dissolved oxygen" ;
DOXY:standard_name = "moles_of_oxygen_per_unit_mass_in_sea_water" ;
DOXY:vocabulary = "http://vocab.nerc.ac.uk/collection/OG1/current/DOXY/" ;
DOXY:_FillValue = NaN ;
DOXY:units = "micromol kg-1" ;
DOXY:ancillary_variables = "DOXY_QC" ;
DOXY:coordinates = "LATITUDE, LONGITUDE, DEPTH, TIME" ;

// global attributes:
:title = "California Underwater Glider Network - Line 90" ;
:platform = "sub-surface gliders" ;
:platform_vocabulary = "https://vocab.nerc.ac.uk/collection/L06/current/27/" ;
:id = "sp041_20191205T1757_R" ;
:contributor_name = "Daniel Rudnick" ;
:contributor_email = "[email protected]" ;
:contributor_role = "Principal Investigator" ;
:contributor_role_vocabulary = "http://vocab.nerc.ac.uk/collection/W08/current/CONT0004/" ;
:agency = "Scripps Institution of Oceanography" ;
:agency_role = "programme operation responsibility" ;
:agency_role_vocabulary = "http://vocab.nerc.ac.uk/collection/C86/current/SDNPR002/" ;
:data_url = "https://spraydata.ucsd.edu/projects/CUGN/" ;
:rtqc_method = "Spray - CoTeDe" ;
:rtqc_method_doi = "10.21105/joss.02063" ;
:date_created = "2021-04-10T01:14:44" ;
:featureType = "trajectory" ;
:Conventions = "CF-1.8, ACDD-1.3, OG-1.0" ;

data:

TRAJECTORY = "sp041_20191205T1757" ;

TIME_GPS = 1576507260, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _,
_, _, _, _, _, 1576517403 ;

LATITUDE_GPS = 32.51754, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _,
_, _, _, _, _, _, 32.50146 ;

LONGITUDE_GPS = -119.80175, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _,
_, _, _, _, _, _, _, -119.82769 ;

TIME = 1576507260, 1576516817, 1576516825, 1576516833, 1576516841,
1576516849, 1576516857, 1576516865, 1576516873, 1576516881, 1576516889,
1576516897, 1576516905, 1576516913, 1576516921, 1576516929, 1576516937,
1576516945, 1576516953, 1576516961, 1576516969, 1576516977, 1576516985,
1576516993, 1576517403 ;

LATITUDE = 32.51754, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _,
_, _, _, _, _, 32.50146 ;

LONGITUDE = -119.80175, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _,
_, _, _, _, _, _, -119.82769 ;

PRES = _, 24.76, 23.68, 22.76, 21.72, 20.72, 19.68, 18.64, 17.48, 16.6,
15.52, 14.6, 13.44, 12.44, 11.4, 10.2, 8.44, 7.44, 6.28, 5.32, 4.36, 3.4,
2.32, 1.56, _ ;

DEPTH = _, 24.5849769627501, 23.5126728256206, 22.5992241312562,
21.5666250478649, 20.5737364026879, 19.5411271039573, 18.5085125971717,
17.3567441183672, 16.4829843983173, 15.4106378268966, 14.4971529837432,
13.3453619368607, 12.3524334192887, 11.3197826520277, 10.1282560628289,
8.38067118597407, 7.38771858618288, 6.23588753584426, 5.28264314410755,
4.32939431287006, 3.37614104200687, 2.30372580539014, 1.5490598630261, _ ;

TEMP = _, 15.505, 15.506, 15.505, 15.505, 15.506, 15.505, 15.505, 15.505,
15.504, 15.506, 15.504, 15.505, 15.508, 15.507, 15.509, 15.509, 15.51,
15.51, 15.511, 15.51, 15.511, 15.512, 15.512, _ ;

PSAL = _, 33.561, 33.561, 33.561, 33.561, 33.562, 33.561, 33.561, 33.561,
33.562, 33.561, 33.561, 33.561, 33.561, 33.561, 33.561, 33.561, 33.561,
33.56, 33.561, 33.56, 33.56, 33.559, 33.56, _ ;

CHLA = _, 0.861, 0.909, 0.873, 0.867, 0.834, 0.864, 0.882, 0.855, 0.93,
0.819, 0.786, 0.807, 0.783, 0.741, 0.744, 0.609, 0.555, 0.573, 0.498,
0.471, 0.453, 0.444, 0.414, _ ;

DOXY = _, 240.699500381006, 240.728111146589, 240.75690836507,
240.710612669174, 240.922144300944, 240.655413148225, 240.720151525978,
240.635340339479, 240.700230807224, 240.76636985969, 240.831706998232,
240.7111499353, 240.664998530651, 240.915858055632, 240.904784287258,
241.074164770971, 240.990908679491, 241.093556991221, 241.119569863555,
241.297597492548, 241.067163480339, 241.244566377113, 241.199209516033, _ ;

DEPLOYMENT_TIME = 1575570735.0 ;

DEPLOYMENT_LATITUDE = 32.9018 ;

DEPLOYMENT_LONGITUDE = -117.29972500000001 ;

PLATFORM_MODEL = "Spray" ;

WMO_IDENTIFIER = "4801948" ;
}

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