2016-2019 lake CTD casts and water column chemistry, other lakes, Cape Bounty, Melville Island, Nunavut

CTD casts were acquired annually, usually in May-June prior to melt and water samples were taken for chemistry and stable isotopes. Profiles were obtained with Richard Brancker Research (RBR) CTD instruments (depth, temperature, conductivity, turbidity, dissolved oxygen) repeatedly from fixed stations in the proximal and middle of the lakes.

Samples were immediately analysed for pH and conductivity (ms/cm), field filtered and transported to Queen's University for further analysis of total organic carbon (ppm), total dissolved nitrogen (ppm), and major ionic concentrations (ppm). Sample for dissolved organic carbon (DOC) and total dissolved nitrogen (TN) were vacuum filtered using pre-combusted glass fiber filters (GF/F) and glass filtration apparatus. Samples were collected in 40 ml glass EPA vials and acidified with hydrochloric acid immediately upon return to the laboratory. DOC and TDN were determined by high temperature combustion and NDIR and chemiluminescent detection using a Shimadzu TOC-VPCH/TNM system equipped with a high sensitivity catalyst. ION Samples for dissolved inorganic ion analyses were vacuum filtered through 0.22 um polycarbonate membrane filters. Ion samples were collected in plastic scintillation vials. Water Samples run on a Dionex ICS 3000 liquid ion chromatograph system to resolve dissolved cations (Na+, Ca2+, Mg2+, Li+, NH4+, K+, and Sr2+) and dissolved anions (NO3-, Br-, PO4-3, SO42-, and Cl-).

Identifier
Source https://www.polardata.ca/pdcsearch/PDCSearchDOI.jsp?doi_id=13128
Metadata Access http://www.polardata.ca/oai/provider?verb=GetRecord&metadataPrefix=fgdc&identifier=13128_fgdc
Provenance
Creator Lamoureux, Scott; Lafreniere, Melissa
Publisher Canadian Cryospheric Information Network
Contributor Polar Data Catalogue
Publication Year 2019
Rights Research programs, CCIN, or ArcticNet take no liability for the use or transmission of this data
OpenAccess true
Contact scott.lamoureux(at)queensu.ca; pdc(at)uwaterloo.ca
Representation
Language English
Format Computer file
Discipline Chemistry
Spatial Coverage (-109.500W, 74.900S, -109.500E, 74.900N)
Temporal Coverage Begin 2016-05-25T00:00:00Z
Temporal Coverage End 2019-05-31T00:00:00Z