The Effect of Carbonate Chemistry on Sea Ice Biota in the High Arctic 2018

The High Arctic is a highly variable system whose biota consists of both that within the water column and that associated with ice. During some years the North Pole region is largely ice free, and in other years experiences heavy concentrations of ice of up to 2 meters (m) in thickness. We participa...

Full description

Bibliographic Details
Main Authors: Walker Smith, Elizabeth Shadwick
Format: Dataset
Language:unknown
Published: Arctic Data Center 2018
Subjects:
Online Access:https://doi.org/10.18739/A2BG2HB5Z
id dataone:doi:10.18739/A2BG2HB5Z
record_format openpolar
spelling dataone:doi:10.18739/A2BG2HB5Z 2024-06-03T18:46:38+00:00 The Effect of Carbonate Chemistry on Sea Ice Biota in the High Arctic 2018 Walker Smith Elizabeth Shadwick Data were collected from both the ice and water column from the ice edge (ca. 82.2ºN, 10ºE) to the North Pole (89.9ºN, 38ºE). ENVELOPE(38.0,10.0,89.9,82.2) BEGINDATE: 2018-08-02T00:00:00Z ENDDATE: 2018-09-19T00:00:00Z 2018-01-01T00:00:00Z https://doi.org/10.18739/A2BG2HB5Z unknown Arctic Data Center carbonate system chemistry Dataset 2018 dataone:urn:node:ARCTIC https://doi.org/10.18739/A2BG2HB5Z 2024-06-03T18:16:55Z The High Arctic is a highly variable system whose biota consists of both that within the water column and that associated with ice. During some years the North Pole region is largely ice free, and in other years experiences heavy concentrations of ice of up to 2 meters (m) in thickness. We participated in the Research Vessel/Ice Breaker (RVIB) Oden cruise to the North Pole in late summer, 2018, with the objective to sample High Arctic sea ice biota and the carbonate chemistry of sea ice. Ice concentrations were extremely heavy during this year, and the programs objectives were met by mooring to a large ice floe and establishing a temporary ice camp to collect ice and atmospheric information. Our sampling included samples from that floe, but also from other areas that were reached using a helicopter. Ice cores were sampled following established best practices (Miller et al., 2015) using a 0.9 m Kovacs ice corer driven by a small electric drill. Cores were removed from the corer, and temperatures were taken using a Amadigit thermistor. All cores were then cut using a stainless-steel saw into 10 centimeter (cm) sections. For carbonate chemistry, each section was placed into a gas-impermeable Tedlar® bag, sealed, and the surrounding air removed through a valve using a manual pump. Independent cores were collected for biological properties and processed in a similar manner. Ice samples were thawed in the dark from 4-10⁰ Celsius (C) for approximately 24 hours before analysis. In the ships laboratories, samples were analyzed for Dissolved Inorganic Carbon (DIC) by an Automated Infrared Inorganic Carbon Analyzer (AIRICA; Marianda) system equipped with a LI-COR LI7000 detector and for Total Alkalinity (TA) by an automatic open-cell potentiometric titration with 0.1 Molar (M) hydrochloric acid using a Metrohm Titrando system (Dickson et al., 2007). Samples for chlorophyll and particulate organic matter were filtered through 25 millimeter (mm) GF/F filters; chlorophyll was analyzed by fluorometry, and Particulate Organic Carbon/Particulate Organic Nitrogen (POC/PON) samples were dried at 60ºC and returned to VIMS for analysis on a Costech elemental analyzer. Additional cores were collected for experimental analysis in a ships cold room, where the carbonate chemistry was altered by immersing core sections in seawater with enhanced DIC levels. All experiments were conducted using Tedlar bags to eliminate atmospheric exchanges of gases. Samples were processed at the end of 7 days as above. Results have been reported in Torstensson et al. (in press). Dataset Arctic North Pole Sea ice Arctic Data Center (via DataONE) Arctic North Pole Breaker ENVELOPE(-67.257,-67.257,-67.874,-67.874) ENVELOPE(38.0,10.0,89.9,82.2)
institution Open Polar
collection Arctic Data Center (via DataONE)
op_collection_id dataone:urn:node:ARCTIC
language unknown
topic carbonate system chemistry
spellingShingle carbonate system chemistry
Walker Smith
Elizabeth Shadwick
The Effect of Carbonate Chemistry on Sea Ice Biota in the High Arctic 2018
topic_facet carbonate system chemistry
description The High Arctic is a highly variable system whose biota consists of both that within the water column and that associated with ice. During some years the North Pole region is largely ice free, and in other years experiences heavy concentrations of ice of up to 2 meters (m) in thickness. We participated in the Research Vessel/Ice Breaker (RVIB) Oden cruise to the North Pole in late summer, 2018, with the objective to sample High Arctic sea ice biota and the carbonate chemistry of sea ice. Ice concentrations were extremely heavy during this year, and the programs objectives were met by mooring to a large ice floe and establishing a temporary ice camp to collect ice and atmospheric information. Our sampling included samples from that floe, but also from other areas that were reached using a helicopter. Ice cores were sampled following established best practices (Miller et al., 2015) using a 0.9 m Kovacs ice corer driven by a small electric drill. Cores were removed from the corer, and temperatures were taken using a Amadigit thermistor. All cores were then cut using a stainless-steel saw into 10 centimeter (cm) sections. For carbonate chemistry, each section was placed into a gas-impermeable Tedlar® bag, sealed, and the surrounding air removed through a valve using a manual pump. Independent cores were collected for biological properties and processed in a similar manner. Ice samples were thawed in the dark from 4-10⁰ Celsius (C) for approximately 24 hours before analysis. In the ships laboratories, samples were analyzed for Dissolved Inorganic Carbon (DIC) by an Automated Infrared Inorganic Carbon Analyzer (AIRICA; Marianda) system equipped with a LI-COR LI7000 detector and for Total Alkalinity (TA) by an automatic open-cell potentiometric titration with 0.1 Molar (M) hydrochloric acid using a Metrohm Titrando system (Dickson et al., 2007). Samples for chlorophyll and particulate organic matter were filtered through 25 millimeter (mm) GF/F filters; chlorophyll was analyzed by fluorometry, and Particulate Organic Carbon/Particulate Organic Nitrogen (POC/PON) samples were dried at 60ºC and returned to VIMS for analysis on a Costech elemental analyzer. Additional cores were collected for experimental analysis in a ships cold room, where the carbonate chemistry was altered by immersing core sections in seawater with enhanced DIC levels. All experiments were conducted using Tedlar bags to eliminate atmospheric exchanges of gases. Samples were processed at the end of 7 days as above. Results have been reported in Torstensson et al. (in press).
format Dataset
author Walker Smith
Elizabeth Shadwick
author_facet Walker Smith
Elizabeth Shadwick
author_sort Walker Smith
title The Effect of Carbonate Chemistry on Sea Ice Biota in the High Arctic 2018
title_short The Effect of Carbonate Chemistry on Sea Ice Biota in the High Arctic 2018
title_full The Effect of Carbonate Chemistry on Sea Ice Biota in the High Arctic 2018
title_fullStr The Effect of Carbonate Chemistry on Sea Ice Biota in the High Arctic 2018
title_full_unstemmed The Effect of Carbonate Chemistry on Sea Ice Biota in the High Arctic 2018
title_sort effect of carbonate chemistry on sea ice biota in the high arctic 2018
publisher Arctic Data Center
publishDate 2018
url https://doi.org/10.18739/A2BG2HB5Z
op_coverage Data were collected from both the ice and water column from the ice edge (ca. 82.2ºN, 10ºE) to the North Pole (89.9ºN, 38ºE).
ENVELOPE(38.0,10.0,89.9,82.2)
BEGINDATE: 2018-08-02T00:00:00Z ENDDATE: 2018-09-19T00:00:00Z
long_lat ENVELOPE(-67.257,-67.257,-67.874,-67.874)
ENVELOPE(38.0,10.0,89.9,82.2)
geographic Arctic
North Pole
Breaker
geographic_facet Arctic
North Pole
Breaker
genre Arctic
North Pole
Sea ice
genre_facet Arctic
North Pole
Sea ice
op_doi https://doi.org/10.18739/A2BG2HB5Z
_version_ 1800868946950225920