Field collection of freshwater surface and groundwater samples from five ecozones across Canada. Concentration and composition (via UV-absorbance and size-exclusion chromatography) of dissolved organic matter were analyzed across all sites and compared across hydrologic compartments to identify similarities in dissolved organic matter (DOM). ***VERSION HISTORY / CHANGELOG ***
v1 - 20200717 - Published Dataset
v2 - 20201209 - Adjustments to Dataset Title, Related Publications. Corrected spelling errors in metadata. Embedded Data Dictionary directly into readme and metadata
v2.1 - 20210112 - Adjustment to Dataset Author List
*** DATA DICTIONARY ***
Variable, with definition and units (when applicable)
- Env
- Collection from surface water (SW) or groundwater (GW)
- Location
- Ecozone
- Ecozone where ‘Location’ is found
- Type
- Hydrological compartment that was sampled
- LocType
- Combination of Location and Type
- Sample
- Exact name of hydrological body where sample was taken
- DOC
- Concentration of dissolved organic matter (mg C / L)
- Hpho
- LC-OCD concentration of hydrophobics (mg C / L)
- Hpho_perc
- Proportion of hydrophobic based on initial DOC concentration (Proportion (0 – 1) )
- Hphi
- LC-OCD concentration of hydrophilics (sum of all eluted components) (mg C / L)
- Hphi_perc
- Proportion of hydrophilics based on initial DOC concentration (Proportion (0 – 1) )
- BP
- LC-OCD concentration of ‘biopolymer’ fraction (mg C / L)
- BP_perc
- Proportion of the ‘biopolymer’ fraction based on concentration of BP divided by the Hphi concentration (Proportion (0 – 1) )
- HS
- LC-OCD concentration of ‘humic substances’ fraction (mg C / L)
- HS_perc
- Proportion of the ‘humic substances’ fraction based on concentration of HS divided by the Hphi concentration (Proportion (0 – 1) )
- BB
- LC-OCD concentration of ‘building blocks’ fraction (mg C / L)
- BB_perc
- Proportion of the ‘building blocks’ fraction based on concentration of BB divided by the Hphi concentration (Proportion (0 – 1) )
- LMWN
- LC-OCD concentration of ‘low molecular weight neutrals’ fraction (mg C / L)
- LMWN_perc
- Proportion of the ‘low molecular weight neutrals’ fraction based on concentration of LMWN divided by the Hphi concentration (Proportion (0 – 1) )
- LMWA
- LC-OCD concentration of ‘low molecular weight acids’ fraction (mg C / L)
- LMWA_perc
- Proportion of the ‘low molecular weight acids’ fraction based on concentration of LMWA divided by the Hphi concentration (Proportion (0 – 1) )
- SUVA
- Specific ultraviolet absorbance at 255nm (SUVA) (L / (mg m) )