ARCSS/TK water chemistry and epilithon characterization from the Noatak National Preserve, Kelly River region (2010) and Feniak Lake region (2011).

Abstract: 

These data are from two remote field campaigns in the Noatak National Preserve. Various thermokarst features and their receiving streams were sampled and characterized. A suite of water chemistry (nutrients, major anions and cations, total suspended sediment) and benthic variables (particulate carbon, nitrogen and phosphorus, and chlorophyll-a) were measured at 6 major sites (2 in 2010 and 4 in 2011). There were additional sites sampled for water chemistry above and below thermokarst features in 2011.

Project Keywords: 

Data set ID: 

10537

EML revision ID: 

1
Published on EDI/LTER Data Portal

Citation: 

Bowden, W. 2014. ARCSS/TK water chemistry and epilithon characterization from the Noatak National Preserve, Kelly River region (2010) and Feniak Lake region (2011). Environmental Data Initiative. http://dx.doi.org/10.6073/pasta/39ed7afdfd1ad36019bd3b02c64d1bd1
People
Dates

Date Range: 

Tuesday, July 20, 2010 to Sunday, July 31, 2011

Publication Date: 

2014

Methods: 

We measured total suspended sediment (TSS) in the Reference and Impacted reach using standard methods (USGS method I-3765). For each sample, a known volume of stream water was filtered in the field through a pre-dried (105°C) and pre-weighed 47-mm diameter glass fiber filter (GF/F) and re-dried and re-weighed. TSS was calculated as the difference in filter mass before and after filtration divided by the volume filtered (mg L-1). Turbidity sensors (DTS-12 from FTS Environmental, Victoria, BC, Canada) were installed in conjunction with automated ISCO samplers (Teledyne ISCO, Lincoln, NE, USA) to collect 5-minute turbidity measurements in the Reference and Impacted reaches for the 2010 season only.

A WTW handheld meter was used to measure pH, Specific Conductance, Temperature & Dissolved Oxygen.

Water samples for chemical analyses were collected as grab water samples. All water samples were filtered through pre-combusted (450°C) 25-mm diameter GF/Fs with a nominal pore size of 0.07 um, with the exception of the water designated for base cation analyses, which were filtered with nylon syringe filters with a pore size of 0.45um. Separate samples were taken for each analyte. Samples for soluble reactive ortho-phosphate (SRP or PO43--P), nitrate (NO3--N), and ammonium (NH4+-N) were frozen; samples for DOC (dissolved organic carbon), TDN (total dissolved nitrogen), TDP (total dissolved phosphorus); and base cations (calcium, Ca2+; magnesium, Mg2+; potassium, K+; and sodium, Na+); micronutrients and metals (aluminum, Al; iron, Fe; manganese, Mn; boron, B; copper, Cu; zinc, Zn; sulfur, S; strontium, Sr; lead, Pb; nickel, Ni; chromium, Cr; and cadmium, Cd) were acidified with 100ul 6N hydrochloric acid for every 50-mL of sample; and anions (chloride, Cl- and sulfate, SO42--S) and alkalinity samples were refrigerated. Samples were shipped back to the University of Vermont in Burlington, Vermont; the Ecosystems Center in Woods Hole, Massachusetts; or the University of Michigan for analysis within six to nine months. LTER Streams Protocols were followed.

Arctic LTER Streams Protocol

http://ecosystems.mbl.edu/ARC/streams/protocol2.html

Version Changes: 

annual data is updated into new file
v1. October 2014: metadata added, file contains water chemistry data - JL

Sites sampled.

Download a comma delimited (csv) or Excel file (includes metadata and data sheets).

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