Dissolved Organic Carbon characteristic data from Boreal Plains lakes in Western Canada

Chlorophyll a concentrations were measured at BASL using a Fluorophotometer (Shimadzu RF-1501 spectrofluorophotometer). An Autotitrator (Man-Tech PC-Titrate with conductivity probe) was used to obtain pH values for each sample at BASL or pH was measured in the field using a calibrated Myron pH pen. Isotopic signatures (δ18O and δ2H) were determined using a Los Gatos isotope analyser from 2012 to 2013 and a Picarro Cavity Ring-Down Spectroscopy L2130-i isotope analyser from 2014 to 2018 at BASL.

Electrical conductivity was measured in the field using either a calibrated temperature level conductivity meter or a calibrated Myron EC pen Lake depth was obtained from measurements at a permanent reference location at the same time as chemistry sampling, and measurements taken from the lake centre in 2012. The difference between the lake centre and reference location in 2012 was applied to other years to obtain lake depth.