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Data headers for 'I4M_5359830'
Record


Generation date
2026-03-18
Method
ncdump -h
Header
netcdf I4M_5359830_1_7068068111131531455 {
dimensions:
time = UNLIMITED ; // (86 currently)
lat = 720 ;
lon = 1440 ;
bounds = 2 ;
variables:
double time(time) ;
time:axis = "T" ;
time:bounds = "bounds_time" ;
time:calendar = "noleap" ;
time:long_name = "time" ;
time:realtopology = "linear" ;
time:standard_name = "time" ;
time:units = "years since 2015-01-01 0:0:0" ;
double lat(lat) ;
lat:realtopology = "linear" ;
lat:units = "degrees_north" ;
lat:long_name = "latitude" ;
lat:standard_name = "latitude" ;
lat:axis = "Y" ;
lat:bounds = "bounds_lat" ;
double lon(lon) ;
lon:realtopology = "circular" ;
lon:topology = "circular" ;
lon:modulo = 360. ;
lon:units = "degrees_east" ;
lon:long_name = "longitude" ;
lon:standard_name = "longitude" ;
lon:axis = "X" ;
lon:bounds = "bounds_lon" ;
float primf(time, lat, lon) ;
primf:missing_value = 1.e+20f ;
primf:_Fillvalue = 1.e+20f ;
primf:standard_name = "area_fraction" ;
primf:units = "1" ;
primf:cell_methods = "time:mean" ;
primf:long_name_description = "primary vegetation on LUH2 potential forest land" ;
primf:long_name = "forested primary land" ;
float primn(time, lat, lon) ;
primn:missing_value = 1.e+20f ;
primn:_Fillvalue = 1.e+20f ;
primn:standard_name = "area_fraction" ;
primn:units = "1" ;
primn:cell_methods = "time:mean" ;
primn:long_name_description = "primary vegetation on LUH2 potential non-forest land" ;
primn:long_name = "non-forested primary land" ;
float secdf(time, lat, lon) ;
secdf:missing_value = 1.e+20f ;
secdf:_Fillvalue = 1.e+20f ;
secdf:standard_name = "area_fraction" ;
secdf:units = "1" ;
secdf:cell_methods = "time:mean" ;
secdf:long_name_description = "secondary vegetation on LUH2 potential forest land" ;
secdf:long_name = "potentially forested secondary land" ;
float secdn(time, lat, lon) ;
secdn:missing_value = 1.e+20f ;
secdn:_Fillvalue = 1.e+20f ;
secdn:standard_name = "area_fraction" ;
secdn:units = "1" ;
secdn:cell_methods = "time:mean" ;
secdn:long_name_description = "secondary vegetation on LUH2 potential non-forest land" ;
secdn:long_name = "potentially non-forested secondary land" ;
float urban(time, lat, lon) ;
urban:missing_value = 1.e+20f ;
urban:_Fillvalue = 1.e+20f ;
urban:standard_name = "area_fraction" ;
urban:long_name = "urban land" ;
urban:units = "1" ;
urban:cell_methods = "time:mean" ;
float c3ann(time, lat, lon) ;
c3ann:missing_value = 1.e+20f ;
c3ann:_Fillvalue = 1.e+20f ;
c3ann:standard_name = "area_fraction" ;
c3ann:long_name = "C3 annual crops" ;
c3ann:units = "1" ;
c3ann:cell_methods = "time:mean" ;
float c4ann(time, lat, lon) ;
c4ann:missing_value = 1.e+20f ;
c4ann:_Fillvalue = 1.e+20f ;
c4ann:standard_name = "area_fraction" ;
c4ann:long_name = "C4 annual crops" ;
c4ann:units = "1" ;
c4ann:cell_methods = "time:mean" ;
float c3per(time, lat, lon) ;
c3per:missing_value = 1.e+20f ;
c3per:_Fillvalue = 1.e+20f ;
c3per:standard_name = "area_fraction" ;
c3per:long_name = "C3 perennial crops" ;
c3per:units = "1" ;
c3per:cell_methods = "time:mean" ;
float c4per(time, lat, lon) ;
c4per:missing_value = 1.e+20f ;
c4per:_Fillvalue = 1.e+20f ;
c4per:standard_name = "area_fraction" ;
c4per:long_name = "C4 perennial crops" ;
c4per:units = "1" ;
c4per:cell_methods = "time:mean" ;
float c3nfx(time, lat, lon) ;
c3nfx:missing_value = 1.e+20f ;
c3nfx:_Fillvalue = 1.e+20f ;
c3nfx:standard_name = "area_fraction" ;
c3nfx:long_name = "C3 nitrogen-fixing crops" ;
c3nfx:units = "1" ;
c3nfx:cell_methods = "time:mean" ;
float pastr(time, lat, lon) ;
pastr:missing_value = 1.e+20f ;
pastr:_Fillvalue = 1.e+20f ;
pastr:standard_name = "area_fraction" ;
pastr:long_name = "managed pasture" ;
pastr:units = "1" ;
pastr:cell_methods = "time:mean" ;
float range(time, lat, lon) ;
range:missing_value = 1.e+20f ;
range:_Fillvalue = 1.e+20f ;
range:standard_name = "area_fraction" ;
range:long_name = "rangeland" ;
range:units = "1" ;
range:cell_methods = "time:mean" ;
float secmb(time, lat, lon) ;
secmb:missing_value = 1.e+20f ;
secmb:_Fillvalue = 1.e+20f ;
secmb:standard_name = "vegetation_carbon_content" ;
secmb:long_name = "secondary mean biomass carbon density" ;
secmb:units = "kg m-2" ;
secmb:cell_methods = "time:mean" ;
float secma(time, lat, lon) ;
secma:missing_value = 1.e+20f ;
secma:_Fillvalue = 1.e+20f ;
secma:standard_name = "" ;
secma:long_name = "secondary mean age" ;
secma:units = "years" ;
secma:cell_methods = "time:mean" ;
double lat_bounds(lat, bounds) ;
double lon_bounds(lon, bounds) ;
int time_bnds(time, bounds) ;

// global attributes:
:host = "UMD College Park" ;
:comment = "LUH2" ;
:contact = "
 gchurtt@nullumd.edu
,
 lchini@nullumd.edu
,
 steve.frolking@nullunh.edu
,
 ritvik@nullumd.edu
" ;
:creation_date = "2017-09-15T13:28:22Z" ;
:activity_id = "input4MIPs" ;
:Conventions = "CF-1.6" ;
:data_structure = "grid" ;
:source = "LUH2 v2.1f: Land-Use Harmonization Data Set" ;
:dataset_version_number = "2.1f" ;
:dataset_category = "landState" ;
:grid_label = "gn" ;
:mip_era = "CMIP6" ;
:further_info_url = "http://luh.umd.edu" ;
:frequency = "yr" ;
:institution_id = "UofMD" ;
:institution = "University of Maryland (UofMD), College Park, MD 20742, USA" ;
:realm = "land" ;
:references = "Hurtt, Chini et al. 2011" ;
:license = "Land-Use Harmonization data produced by the University of Maryland is licensed under a Creative Commons Attribution \"Share Alike\" 4.0 International License (http://creativecommons.org/licenses/by/4.0/). The data producers and data providers make no warranty, either express or implied, including but not limited to, warranties of merchantability and fitness for a particular purpose. All liabilities arising from the supply of the information (including any liability arising in negligence) are excluded to the fullest extent permitted by law." ;
:target_mip = "[‘ScenarioMIP’, ‘AerChemMIP’, ‘C4MIP’, ‘DCPP’, ‘GeoMIP’, ‘LS3MIP’, ‘LUMIP’]" ;
:source_id = "UofMD-landState-GCAM-ssp460-2-1-f" ;
:variable_id = "multiple-states" ;
:title = "UofMD LUH2f dataset prepared for input4MIPs" ;
:tracking_id = "hdl:21.14100/8fd188aa-2367-41e4-817b-61c41202ca38" ;
:nominal_resolution = "50 km" ;
}