The catalog as a data frame: what each short name means, its units, and the Copernicus code and dataset behind it. Print it to see what is available without leaving the console.
Value
a data frame of class datamatch_dictionary with columns name,
variable, label, units, product, dataset, url, and description
Examples
variable_dictionary()
#> Copernicus variables available by name
#> ------------------------------------------------------------------
#> name variable label units
#> SST thetao Sea surface temperature degrees C
#> SSS so Sea surface salinity PSU
#> BOTT bottomT Bottom temperature degrees C
#> UO uo Eastward current velocity m/s
#> VO vo Northward current velocity m/s
#> SSH zos Sea surface height m
#> MLD mlotst Mixed layer depth m
#> SIC siconc Sea ice concentration fraction
#> CHL CHL Chlorophyll-a concentration (satellite) mg/m3
#> PP PP Primary production (satellite) mg/m2/day
#> DIATO DIATO Diatom chlorophyll-a concentration mg/m3
#> DINO DINO Dinophyte chlorophyll-a concentration mg/m3
#> NO3 no3 Nitrate concentration mmol/m3
#> PO4 po4 Phosphate concentration mmol/m3
#> O2 o2 Dissolved oxygen mmol/m3
#> PH ph pH unitless
#> CHL_MODEL chl Chlorophyll-a concentration (model) mg/m3
#> NPP_MODEL nppv Net primary production (model) mg/m3/day
#>
#> GLOBAL_MULTIYEAR_PHY_001_030
#> variables: SST, SSS, BOTT, UO, VO, SSH, MLD, SIC
#> dataset: cmems_mod_glo_phy_my_0.083deg_P1M-m
#> docs: https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#>
#> OCEANCOLOUR_GLO_BGC_L4_MY_009_104
#> variables: CHL, PP, DIATO, DINO
#> dataset: cmems_obs-oc_glo_bgc-plankton_my_l4-multi-4km_P1Mcmems_obs-oc_glo_bgc-pp_my_l4-multi-4km_P1M
#> docs: https://data.marine.copernicus.eu/product/OCEANCOLOUR_GLO_BGC_L4_MY_009_104/description
#>
#> GLOBAL_MULTIYEAR_BGC_001_029
#> variables: NO3, PO4, O2, PH, CHL_MODEL, NPP_MODEL
#> dataset: cmems_mod_glo_bgc_my_0.25deg_P1M-m
#> docs: https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_BGC_001_029/description
#>
#> Pass a name to accessEnvDat(vars = ...), or the Copernicus code.
#> With every variable from one product, product_id and dataset_id can be
#> omitted - they are inferred from the names.
#> Full descriptions: as.data.frame(variable_dictionary())$description
variable_dictionary("biogeochemical")
#> Copernicus variables available by name
#> ------------------------------------------------------------------
#> name variable label units
#> NO3 no3 Nitrate concentration mmol/m3
#> PO4 po4 Phosphate concentration mmol/m3
#> O2 o2 Dissolved oxygen mmol/m3
#> PH ph pH unitless
#> CHL_MODEL chl Chlorophyll-a concentration (model) mg/m3
#> NPP_MODEL nppv Net primary production (model) mg/m3/day
#>
#> GLOBAL_MULTIYEAR_BGC_001_029
#> variables: NO3, PO4, O2, PH, CHL_MODEL, NPP_MODEL
#> dataset: cmems_mod_glo_bgc_my_0.25deg_P1M-m
#> docs: https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_BGC_001_029/description
#>
#> Pass a name to accessEnvDat(vars = ...), or the Copernicus code.
#> With every variable from one product, product_id and dataset_id can be
#> omitted - they are inferred from the names.
#> Full descriptions: as.data.frame(variable_dictionary())$description
# As a plain data frame, for programmatic use
as.data.frame(variable_dictionary())
#> name variable label units
#> 1 SST thetao Sea surface temperature degrees C
#> 2 SSS so Sea surface salinity PSU
#> 3 BOTT bottomT Bottom temperature degrees C
#> 4 UO uo Eastward current velocity m/s
#> 5 VO vo Northward current velocity m/s
#> 6 SSH zos Sea surface height m
#> 7 MLD mlotst Mixed layer depth m
#> 8 SIC siconc Sea ice concentration fraction
#> 9 CHL CHL Chlorophyll-a concentration (satellite) mg/m3
#> 10 PP PP Primary production (satellite) mg/m2/day
#> 11 DIATO DIATO Diatom chlorophyll-a concentration mg/m3
#> 12 DINO DINO Dinophyte chlorophyll-a concentration mg/m3
#> 13 NO3 no3 Nitrate concentration mmol/m3
#> 14 PO4 po4 Phosphate concentration mmol/m3
#> 15 O2 o2 Dissolved oxygen mmol/m3
#> 16 PH ph pH unitless
#> 17 CHL_MODEL chl Chlorophyll-a concentration (model) mg/m3
#> 18 NPP_MODEL nppv Net primary production (model) mg/m3/day
#> product
#> 1 GLOBAL_MULTIYEAR_PHY_001_030
#> 2 GLOBAL_MULTIYEAR_PHY_001_030
#> 3 GLOBAL_MULTIYEAR_PHY_001_030
#> 4 GLOBAL_MULTIYEAR_PHY_001_030
#> 5 GLOBAL_MULTIYEAR_PHY_001_030
#> 6 GLOBAL_MULTIYEAR_PHY_001_030
#> 7 GLOBAL_MULTIYEAR_PHY_001_030
#> 8 GLOBAL_MULTIYEAR_PHY_001_030
#> 9 OCEANCOLOUR_GLO_BGC_L4_MY_009_104
#> 10 OCEANCOLOUR_GLO_BGC_L4_MY_009_104
#> 11 OCEANCOLOUR_GLO_BGC_L4_MY_009_104
#> 12 OCEANCOLOUR_GLO_BGC_L4_MY_009_104
#> 13 GLOBAL_MULTIYEAR_BGC_001_029
#> 14 GLOBAL_MULTIYEAR_BGC_001_029
#> 15 GLOBAL_MULTIYEAR_BGC_001_029
#> 16 GLOBAL_MULTIYEAR_BGC_001_029
#> 17 GLOBAL_MULTIYEAR_BGC_001_029
#> 18 GLOBAL_MULTIYEAR_BGC_001_029
#> dataset
#> 1 cmems_mod_glo_phy_my_0.083deg_P1M-m
#> 2 cmems_mod_glo_phy_my_0.083deg_P1M-m
#> 3 cmems_mod_glo_phy_my_0.083deg_P1M-m
#> 4 cmems_mod_glo_phy_my_0.083deg_P1M-m
#> 5 cmems_mod_glo_phy_my_0.083deg_P1M-m
#> 6 cmems_mod_glo_phy_my_0.083deg_P1M-m
#> 7 cmems_mod_glo_phy_my_0.083deg_P1M-m
#> 8 cmems_mod_glo_phy_my_0.083deg_P1M-m
#> 9 cmems_obs-oc_glo_bgc-plankton_my_l4-multi-4km_P1M
#> 10 cmems_obs-oc_glo_bgc-pp_my_l4-multi-4km_P1M
#> 11 cmems_obs-oc_glo_bgc-plankton_my_l4-multi-4km_P1M
#> 12 cmems_obs-oc_glo_bgc-plankton_my_l4-multi-4km_P1M
#> 13 cmems_mod_glo_bgc_my_0.25deg_P1M-m
#> 14 cmems_mod_glo_bgc_my_0.25deg_P1M-m
#> 15 cmems_mod_glo_bgc_my_0.25deg_P1M-m
#> 16 cmems_mod_glo_bgc_my_0.25deg_P1M-m
#> 17 cmems_mod_glo_bgc_my_0.25deg_P1M-m
#> 18 cmems_mod_glo_bgc_my_0.25deg_P1M-m
#> url
#> 1 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 2 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 3 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 4 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 5 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 6 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 7 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 8 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 9 https://data.marine.copernicus.eu/product/OCEANCOLOUR_GLO_BGC_L4_MY_009_104/description
#> 10 https://data.marine.copernicus.eu/product/OCEANCOLOUR_GLO_BGC_L4_MY_009_104/description
#> 11 https://data.marine.copernicus.eu/product/OCEANCOLOUR_GLO_BGC_L4_MY_009_104/description
#> 12 https://data.marine.copernicus.eu/product/OCEANCOLOUR_GLO_BGC_L4_MY_009_104/description
#> 13 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_BGC_001_029/description
#> 14 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_BGC_001_029/description
#> 15 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_BGC_001_029/description
#> 16 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_BGC_001_029/description
#> 17 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_BGC_001_029/description
#> 18 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_BGC_001_029/description
#> description
#> 1 Sea water potential temperature at the surface.
#> 2 Sea water salinity at the surface.
#> 3 Sea water potential temperature at the sea floor. Relevant to overwintering copepod stages.
#> 4 Eastward component of sea water velocity.
#> 5 Northward component of sea water velocity.
#> 6 Sea surface height above geoid. A proxy for mesoscale circulation features.
#> 7 Ocean mixed layer thickness by a sigma-theta criterion. Controls how deeply plankton are mixed.
#> 8 Fraction of the cell covered by sea ice.
#> 9 Mass concentration of chlorophyll-a from Copernicus-GlobColour. A food-availability proxy; usually worth log-transforming. Surface only, and gappy under persistent cloud - though the daily field is the gap-free interpolated one.
#> 10 Primary productivity of biomass expressed as carbon, from Copernicus-GlobColour. A rate rather than the standing stock chlorophyll reports. Note the areal units: this is depth-integrated, unlike the volumetric model NPP.
#> 11 Mass concentration of diatoms expressed as chlorophyll in sea water. Large, fast-growing cells that dominate the spring bloom and are the preferred prey of large copepods.
#> 12 Mass concentration of dinophytes (dinoflagellates) expressed as chlorophyll in sea water. Typically later in the season than diatoms and favoured by stratified, low-nutrient water.
#> 13 Mole concentration of nitrate, a limiting nutrient.
#> 14 Mole concentration of phosphate.
#> 15 Mole concentration of dissolved molecular oxygen.
#> 16 Sea water pH on the total scale. A logarithmic ratio, so it has no units - and for the same reason should not be averaged directly. Monthly only.
#> 17 Chlorophyll-a from the biogeochemistry reanalysis. Coarser than the satellite CHL but gap-free, so preferable where cloud cover would leave holes.
#> 18 Net primary production from the biogeochemistry reanalysis. Volumetric, unlike the depth-integrated satellite PP, so the two are not interchangeable.
# The product page for a variable, to check its coverage and revisions
as.data.frame(variable_dictionary())[c("name", "url")]
#> name
#> 1 SST
#> 2 SSS
#> 3 BOTT
#> 4 UO
#> 5 VO
#> 6 SSH
#> 7 MLD
#> 8 SIC
#> 9 CHL
#> 10 PP
#> 11 DIATO
#> 12 DINO
#> 13 NO3
#> 14 PO4
#> 15 O2
#> 16 PH
#> 17 CHL_MODEL
#> 18 NPP_MODEL
#> url
#> 1 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 2 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 3 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 4 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 5 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 6 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 7 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 8 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description
#> 9 https://data.marine.copernicus.eu/product/OCEANCOLOUR_GLO_BGC_L4_MY_009_104/description
#> 10 https://data.marine.copernicus.eu/product/OCEANCOLOUR_GLO_BGC_L4_MY_009_104/description
#> 11 https://data.marine.copernicus.eu/product/OCEANCOLOUR_GLO_BGC_L4_MY_009_104/description
#> 12 https://data.marine.copernicus.eu/product/OCEANCOLOUR_GLO_BGC_L4_MY_009_104/description
#> 13 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_BGC_001_029/description
#> 14 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_BGC_001_029/description
#> 15 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_BGC_001_029/description
#> 16 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_BGC_001_029/description
#> 17 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_BGC_001_029/description
#> 18 https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_BGC_001_029/description