Dear Jonathan, dear  Roy, 

thanks a lot for your encouraging responses. 

There is a large potential user group for this standard name. Firstly, there is 
an increasing number of pollen modeling and measurement activities. Secondly, 
NetCDF as standard output file format is becoming more and more established in 
this context.  The introduction of CF standard names for pollen would enable 
users to store and share their output in a more FAIR manner. 

For Europe, for example, there are daily CAMS pollen forecasts
https://urldefense.us/v3/__https://ads.atmosphere.copernicus.eu/cdsapp*!/dataset/cams-europe-air-quality-forecasts?tab=overview__;Iw!!G2kpM7uM-TzIFchu!k0fYLAfm5qUVhLe8OkYjyVxps6U7DIMradkbhTvKgvCJ6aI7rTmrI26BukiG50cjUsUrkUM_xbQ$
 , publicly available in GRIB and NetCDF. 

There are also many activities on modeling atmospheric pollen concentrations 
elsewhere, e.g. using 
– GEM-MACH (Robichaud 2021: https:// doi.org/10.3390/atmos12060789),
– CMAQ-pollen (Efstathiou et al. 2011: 
https://urldefense.us/v3/__https://doi.org/10.1016/j.atmosenv.2010.12.008__;!!G2kpM7uM-TzIFchu!k0fYLAfm5qUVhLe8OkYjyVxps6U7DIMradkbhTvKgvCJ6aI7rTmrI26BukiG50cjUsUrODaNQVQ$
 ),
– the "pollen-extended"  WRF-Chem (Werner et al. 2021: 
https://urldefense.us/v3/__https://doi.org/10.1007/s00484-020-02045-1__;!!G2kpM7uM-TzIFchu!k0fYLAfm5qUVhLe8OkYjyVxps6U7DIMradkbhTvKgvCJ6aI7rTmrI26BukiG50cjUsUrsvr2Cn8$
 ), 
– CHIMERE (Mesut et al. 2021:  
https://urldefense.us/v3/__https://doi.org/10.3390/atmos12060693__;!!G2kpM7uM-TzIFchu!k0fYLAfm5qUVhLe8OkYjyVxps6U7DIMradkbhTvKgvCJ6aI7rTmrI26BukiG50cjUsUrX0Lxmkg$
 ),
– METRAS (Schueler and Schlünzen 2006:  
https://urldefense.us/v3/__https://doi.org/10.1007/s10666-006-9044-8__;!!G2kpM7uM-TzIFchu!k0fYLAfm5qUVhLe8OkYjyVxps6U7DIMradkbhTvKgvCJ6aI7rTmrI26BukiG50cjUsUrwtsfGdE$
 ).

I would therefore very much appreciate if you could support my proposal and add 
the proposed standard name to the CF table. 

Thank you and best regards
Angelika.




P.S.: For illustration, I drafted an example usage of the proposed pollen 
concentration standard name in a NetCDF file
dimension:
time = 6 ;
lat = 40 ;
lon = 60 ;
string80 = 80 ;
taxon = 11 ;
variables:
float time(time);
….
float pollen_conc(time,lat,lon,taxon) ;
pollen_conc:standard_name = 
"number_concentration_of_biological_taxon_pollen_grains_in_air“ ;
pollen_conc:units = „m-3“ ;
pollen_conc:coordinates = "taxon_lsid taxon_name“ ;
pollen_conc:long_name = „airborne pollen concentration“ ;
char taxon_name(taxon,string80) ;
taxon_name:standard_name = "biological_taxon_name“ ;
taxon_name:long_name = „pollen (Latin name)" ;
char taxon_lsid(taxon,string80) ;
taxon_lsid:standard_name = "biological_taxon_lsid“ ;
taxon_lsid:long_name = „ITIS identifier“ ;
taxon_lsid:url = 
„https://urldefense.us/v3/__https://www.itis.gov/__;!!G2kpM7uM-TzIFchu!k0fYLAfm5qUVhLe8OkYjyVxps6U7DIMradkbhTvKgvCJ6aI7rTmrI26BukiG50cjUsUrbBZOwsc$
 “ ;
char pollen_common_name(taxon,string80) ;
pollen_common_name:long_name = „pollen (common name)“ ;
pollen_common_name:description = „Common names as listed in ITIS“ ;
pollen_common_name:url = 
„https://urldefense.us/v3/__https://www.itis.gov/__;!!G2kpM7uM-TzIFchu!k0fYLAfm5qUVhLe8OkYjyVxps6U7DIMradkbhTvKgvCJ6aI7rTmrI26BukiG50cjUsUrbBZOwsc$
 “ ;
data:
time = 6., 12., ... ;
lat = 1., 2., ... ;
lon = 5., 6., ... ;
pollen_conc = 0.0087, 0.28367, ... ;
taxon_name = "Betula L.", "Poaceae", "Artemisia L.", "Ambrosia L.", "Secale 
L.", "Alnus Mill.", "Fraxinus L.", "Corylus L.", "Olea L.", "Fagus L.", 
"Quercus L." ;
taxon_lsid ="urn:lsid:itis.gov:itis_tsn:19478", 
"urn:lsid:itis.gov:itis_tsn:40351", "urn:lsid:itis.gov:itis_tsn:35431", 
"urn:lsid:itis.gov:itis_tsn:36495", "urn:lsid:itis.gov:itis_tsn:42089", 
"urn:lsid:itis.gov:itis_tsn:19466", "urn:lsid:itis.gov:itis_tsn:32928", 
"urn:lsid:itis.gov:itis_tsn:19505", "urn:lsid:itis.gov:itis_tsn:32989", 
"urn:lsid:itis.gov:itis_tsn:19461", "urn:lsid:itis.gov:itis_tsn:19276“ ;
pollen_common_name="birch", "grasses", "sagebrush", "ragweed", "rye", "alder", 
"ash", "hazelnut", "olive", "beech", "oak“ ;




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