AndreaBozzo/ceres-open-data-index huggingface dataset:
Environmental data for correlation analysis explaining the abundance of Cryothecomonas

The datasets present new data from microscopic counts and selected nutrient and physical data assembled from the following cruises. Aboard the CCGS Amundsen: ArcticNet Expeditions 2006, 2008, 2009, 2010; International Polar Year (IPY) Circumpolar Flaw Lead Study 2008 and MALINA Project 2009 (French IPY project headed by Dr. M. Babin). Aboard the CCGS Louis St-Laurent: IPY Canada's Three Oceans 2007. Temporal coverage is Feb.-Nov., but varies by year, with the greatest sampling effort in July-Oct. Cryothecomonas abundance was measured by cell-counts using fluorescent in situ hybridization with a taxon-specific probe. Biomass of phototrophic and heterotrophic organisms, of different size classes, was obtained by counts of DAPI-stained cells under epifluorescence microscopy. Samples for total chlorophyll a (chl a) were filtered onto GF/F filters, extracted in either ethanol or acetone and analysed by spectrofluorometry. Chl a was also measured for the < 3 µm size fraction. CCGS Amundsen data: Temperature, salinity, oxygen, and photosynthetically active radiation were provided by Dr. Y. Gratton (Institut National de la Recherche Scientifique, Québec). Nitrate and Phosphate concentrations were provided by Dr. J.-É. Tremblay (Université Laval, Québec). CCGS Louis St-Laurent data were supplied by Drs. EC Carmack and John Nelson (Institute of Ocean Sciences, Sidney, B.C.). Distance to ice edge was obtained from the Canadian Ice Services (http://ice-glaces.ec.gc.ca).

Organization: Amundsen Science
ArcticNet/BP 1102c - Beaufort Sea CTD data

The CTD data was obtained during the 2011 ArcticNet scientific cruise #1102c with the participation of the British Petroleum (BP) company.

The data were collected from September 9 to 19, 2011, aboard the CCGS Amundsen. There were 21 casts associated to 18 stations, located in the Beaufort Sea.

The following parameters were measured: temperature, conductivity and pressure (with a Sea-Bird SBE-9plus), dissolved oxygen (Sea-Bird SBE-43), fluorescence (Seapoint chlorophyll fluorometer), CDOM (Wetlabs FL(RT)D), nitrate concentration (Satlantic MBARI-ISUS 5T), transmittance (Wetlabs C-Star transmissometer), light intensity (PAR; LI-COR Biosciences) and surface light intensity (sPAR; LI-COR Biosciences).

Quality control procedures were applied to the data. Data are available on the Polar Data Catalogue and at the Marine Environmental Data Service (MEDS) of Fisheries and Oceans Canada.

Organization: Amundsen Science
Biological data of Arctic cod larvae and juveniles in the Canadian Arctic: ArcticNet 2005-2021

Larval and juvenile Arctic cod were sampled in the Beaufort Sea, Baffin Bay, Hudson Bay and in the Canadian Archipelago through ArcticNet surveys 2005-2021 onboard the NGCC Amundsen. The sampler consisted of a rectangular metal frame carrying side by side two 6-m long, 1-m2 mouth aperture, square-conical nets with 500 & 750 um mesh. It was deployed in an oblique tow down to a depth of ~90 m, at a ship speed of 1 m s-1 (2 knots) and a cable angle of 60º on the horizon. All fish larvae and juveniles were sorted from the samples and preserved in 95% ethanol. The datasets include morphometric measurements (standard length and width), hatch date, growth rates and diet of Arctic cod larvae and juveniles (4-62 mm). Note: No data was collected uring 2020 since there was restricted access due to the COVID-19 pandemic.

Organization: Amundsen Science
ArcticNet 0502a - Northwest Passage CTD data

The CTD data was obtained during the 2005 ArcticNet scientific cruise #0502. The data were collected from September 16 to 19, 2005, aboard the CCGS Amundsen. There were 4 casts, associated to 4 oceanographic stations, in the Northwest Passage. 

The following parameters were measured: temperature, conductivity and pressure (with a Sea-Bird SBE-9plus), dissolved oxygen (Sea-Bird SBE-43), pH (Sea-Bird SBE-18-I), fluorescence (Seapoint chlorophyll fluorometer), nitrate concentration (Satlantic MBARI-ISUS 5T), transmittance (Wetlabs C-Star transmissometer), light intensity (PAR; Biospherical Instruments QCP2300) and surface light intensity (sPAR; Biospherical Instruments QCP2200). Quality control procedures were applied to the data. Data are available on the Polar Data Catalogue and at the Marine Environmental Data Service (MEDS) of Fisheries and Oceans Canada.

Organization: Amundsen Science
Cloud base height in Baffin Bay, the NW Passage and the Beaufort Sea: 2014

Processed atmospheric ceiling heights were recorded from a CT25K ceilometer. The instrument was mounted on the CCGS Amundsen icebreaker on the port side directly behind the ship's wheelhouse. Data were collected during transit, set transects, 24-hour stations, and multi-day drift stations. The instrument was running continuously during the IPY-CFL project, with only minor interruptions for maintenance activities.

Organization: Amundsen Science
CTD Data from the Maritime Estuary and Gulf of St. Lawrence from the TReX Mission (Tracer Release EXperiment) - Deep 01

The TReX (Tracer ReleaseEXperiment) project is an interdisciplinary research project that aims to develop and demonstrate Canada's ability to predict the spread of contaminants and respond to their accidental discharges in coastal marine environments. The present CTD dataset comes from the first mission of the Trex-Deep phase, which aims to study transport and dispersal processes in the bottom waters of the Laurentian Channel, from the maritime estuary to Cabot Strait. This unique experiment, which combines the expertise of researchers from Quebec, Nova Scotia, and Germany, is used to predict the dispersal and advection of certain contaminants and understand the climate-related biogeochemical processes that control hypoxia and acidification conditions at the head of the Laurentian Channel. 

This CTD dataset from the first mission in October 2021 presents vertical profiles of salinity, temperature, dissolved oxygen, density, and fluorescence from 4 to 360 m for about thirty stations between Rimouski and Cabot Strait. Although the probes were calibrated by the manufacturer during the year, discrete salinity samples were taken throughout the water column and analyzed on a Guildline Autosal 8400 salinometer calibrated with standard IAPSO (International Association for the Physical Sciences of the Oceans) seawater and CTD profiles reprocessed after the mission. Similarly, dissolved oxygen concentrations were determined by Winkler chemical titration (Grasshoff et al., 1999) on about forty discrete water samples collected directly from Niskin bottles. The relative standard deviation, based on repeated analyses of samples taken from the same Niskin bottle, was less than 1%. These measurements were also used to calibrate the SBE-43 oxygen probe mounted on the rosette.

It was acquired jointly by the teams of Douglas Wallace (U. Dalhousie), Gwénaëlle Chaillou (ISMER-UQAR) and Toste Tanhua (GEOMAR).

Organization: St. Lawrence Global Observatory
Ship-Based Meteorological Data, 2009 ArcticNet, NW Passage

During the ArcticNet annual cruises of the research icebreaker CCGS Amundsen, characteristics of the near-surface atmosphere (basic meteorological elements, incident radiation, CO2 concentration) are monitored in conjunction with surface sea water properties (temperature, salinity, dissolved CO2 and O2) to observe the relationship between the surface micro-climate and the air-sea exchange, with particular interest in CO2.  Central to this integrated dataset, the following meteorological variables were recorded at 1 minute intervals (instrument used to collect each variable is in parentheses, and approximate instrument height above surface is indicated):

-Wind speed (RM Young Wind Monitor 05103) - 16m height
-Wind direction (RM Young Wind Monitor 05103) -16m height
-Air Temperature (Vaisala HMP45C212) - 15m height
-Relative Humidity (Vaisala HMP45C212) -15m height
-Surface temperature (Everest IR Transducer, 4000.44ZL) - 8m height

All instruments were mounted on a meteorological tower on the bow of the research icebreaker CCGS Amundsen.

Organization: Amundsen Science
Mercury and stable isotopes data in zooplankton across the Canadian High Arctic: Amundsen Gulf

Zooplankton samples were collected onboard the research Icebreaker CCGS Amundsen during Leg 1 in 2005 (4 stations) and Leg 1 in 2006 (8 stations) with a vertically towed net frame equipped with a set of 4 adjacent 1-m2 nets (mesh size 200 µm and 500 µm) from near the bottom to the surface and by trawling an oblique rectangular mid-water trawl (mesh size 1600 µm) or an oblique Tucker net (mesh size 2x500 µm) in the surface layer from 100 m depth to the surface. Samples were placed into 30 ml plastic vials and/or whirl-pak bags and were kept frozen at -20 Degree Celcius. Representative sub-samples of individual zooplankton genera were placed in 4 ml glass vials for stable isotope analysis. Three keystone zooplankton genus were included in this study: Calanus spp. (mostly adult Calanus hyperboreus), Themisto spp. (mostly adult Themisto libellula) and Euchaeta spp. THg analysis was conducted at the Freshwater Institute with cold vapour atomic absorption spectroscopy (CVAAS). MMHg analysis was conducted at the University of Ottawa by Gas Chromatography Atomic Fluorescence Spectroscopy (GCAFS). Carbon and nitrogen isotopic analyses were performed at the University of Winnipeg Isotope Laboratory by continuous flow ion ratio mass spectrometry (CF-IRMS). Oceanographic data (Hg levels in water column, salinity, 18O) were collected by our team. Water samples were collected with 24 12-L Niskin bottles attached to a rosette sampler equipped with Seabird 911+ CTD (Sea-Bird)

Organization: Amundsen Science
My Own Beach (2007)

The Comité ZIP Sud-de-l'Estuaire has produced a shoreline cleaning guidelines kit on the theme "My own beach". This kit will allow any person, municipality, or group interested in organizing a beach cleaning activity in its area to have a methodology adapted to its territory (step by step approach, materials needed for cleanup, security measures, promotion material, etc.). The kit includes a poster, an inventory sheet template, suggested activities, etc. The kit is available on internet or as a paper version.

Organization: St. Lawrence Global Observatory
Infrared Transducer Data, Nares Strait and Peel Sound, 2013

The surface temperature of the target within the passive microwave (PMW) systems field of view were collected on a high temporal resolution. An infrared transducer was positioned on the port side of the CCGS Amundsen, at a height of approximately 7 meters. Data collection occurred every 15 seconds. The instrument collected data throughout the entirety of the Amundsen Cruise at a fixed angle. Brightness temperature data of target is in degrees Celsius.

Organization: Amundsen Science
Benthic food-web responses to marine biological productivity and depth across the Canadian Arctic

A total of 19 stations were sampled between August and October 2011 onboard the Canadian research icebreaker CCGS Amundsen. Two stations were sampled both in August and October to assess seasonal variability in stable isotope composition. At each station, a USNEL box corer (0.25 m2) was deployed to collect seafloor sediments for the determination of stable isotope composition and pigment (Chl a + phaeopigments) concentrations. From each box core, surface sediments (upper 1 cm) were sampled as three sub-cores using a 60 ml disposable syringe (2.6 cm diameter with a cut off anterior end). Sediment samples were immediately frozen at -20 °C for stable isotope analysis and at -80 °C for pigment analysis.

Megabenthic invertebrates were principally collected with an Agassiz trawl (effective opening of 1.5 m and a net mesh size of 40 mm, with a 5 mm cod end liner) with average trawling time and speed of 5 min and 1.5 knots, respectively. At three stations, invertebrates were collected with the box corer. Trawl and box corer catches were washed over a 2 mm sieve under running sea water onboard and 1 to 3 individuals of the most abundant community representatives were collected at each station. Specimens were frozen immediately at -80 °C and identified to the lowest possible taxonomic level in the lab.

Organization: Amundsen Science
ArcticNet/IOL 0903b - Beaufort Sea CTD Data

The CTD data was obtained during the 2009 ArcticNet scientific cruise #0903 with the participation of Imperial Oil Ltd. (IOL).

The data were collected from September 14 to October 4, 2009, aboard the CCGS Amundsen. There were 31 casts associated to 31 stations, located in the Beaufort Sea area.

The following parameters were measured: temperature, conductivity and pressure (with a Sea-Bird SBE-9plus), dissolved oxygen (Sea-Bird SBE-43), fluorescence (Seapoint chlorophyll fluorometer), CDOM (Haardt backscat fluorometer FL(RT)D), nitrate concentration (Satlantic MBARI-ISUS 5T), transmittance (Wetlabs C-Star transmissometer), currents (RDI LADCP), turbidity (UVP 5), light intensity (PAR; Biospherical Instruments QCP2300) and surface light intensity (sPAR; Biospherical Instruments QCP2200). Quality control procedures were applied to the data. Data are available on the Polar Data Catalogue and at the Marine Environmental Data Service (MEDS) of Fisheries and Oceans Canada.

Organization: Amundsen Science
Acoustic data in the Canadian Arctic

The dataset is composed of raw files (.raw) recorded with a SIMRAD EK60 three-frequency (38, 120, 200 kHz) split-beam echosounder that was operated continuously during the ArcticNet cruise aboard the CCGS Amundsen from 2006 to 2016 (no data were collected in 2012 due to the CCGS Amundsen being in dry dock). All three 7° transducers were hull-mounted and calibrated prior to departure. The acoustic signal was recorded continuously on a PC using ER60 software version 2.0.0. Ping rate varied from 1 to 2 seconds depending on maximum depth, and the pulse length was set at 1.024 milliseconds. The files can be read with the open source programming software R, other proprietary programming software like MATLAB or with specific proprietary software for hydro-acoustic analysis such as Echoview (https://www.echoview.com/​).

Organization: Amundsen Science
High Biodiversity (HiBio) Mooring Data Collection.

This dataset contains data collection from High Arctic Biodiversity (HiBio) program for the years 2017, 2019, 2020, and 2021. They were collected in Hatton Bassin at the Labrador Sea with installed fixed moorings (HiBioA, HiBioC, MkB1). Mooring reports are included within the archive as well. The data were retrieved from the moorings each year. The HiBioA mooring was equipped with profiling current meters (Seaguard CTD-Tu-DO), sediment traps and hydrophones (model: JASCO AMAR G3). The hydrophone listens for marine mammal activity by recording bioacoustics vocalizations throughout the year on the shelf-slope area. The HiBioC was equipped with an RBR Concerto-CTD-Tu, which measures sea water Conductivity, Temperature and Depth. Other parameters such as sea water Salinity and turbidity are also included in this dataset. The data processing chain is built upon open-source Integrated Marine Observatory System (IMOS) toolbox developed for Matlab© by the Australian Ocean Data Network (AODN; Galibert, 2016). Additional Quality Control (QC) procedure is applied to the ArcticNet-specific mooring data. These are described in the technical report of the data processing. The data are stored in Network Common Data Form (NetCDF) format following the international standard Climate Forecast (CF) convention.

Organization: Amundsen Science
Ship-Based Meteorological Data, 2015 ArcticNet

During the ArcticNet annual cruises of the research icebreaker CCGS Amundsen, characteristics of the near-surface atmosphere (basic meteorological elements, incident radiation) are monitored in conjunction with surface sea water properties (temperature, salinity, dissolved CO2 and O2) to observe the relationship between the surface micro-climate and the air-sea exchange, with particular interest in CO2.  Central to this integrated dataset, the following meteorological variables were recorded at 1 minute intervals (instrument used to collect each variable is in parentheses, and approximate instrument height above surface is indicated): wind speed (RM Young Wind Monitor 05106-10) - 16m height; wind direction (RM Young Wind Monitor 05106-10) -16m height; air temperature (Vaisala HMP45C212) - 15m height; relative humidity (Vaisala HMP45C212) -15m height; and, surface temperature (Apogee IR Transducer SI-111) - 8m height, atmospheric pressure.

All instruments were mounted on a meteorological tower on the bow of the research icebreaker CCGS Amundsen.

Organization: Amundsen Science
2018 ROV video survey at NE Saglek Bank aboard CCGS Amundsen (dive 64)

A remotely operated vehicle (ROV) video survey was conducted at the Saglek Bank location, at a depth of ~500 m in July 2018. The primary purpose of this ROV dive was the geological and biological site characterization across depths, and sampling of dead coral skeletons, live corals for stable isotopes and lipids, and sponges for stable isotopes. Bottom type was mainly sandy gravelly bottom. Small sponges and soft corals (Family Nephtheidae) were abundant at this site (probably Geodia spp.). Other corals observed include red mushroom corals (Family Alcyoniidae, likely Anthomastus sp.), Primnoa resedaeformis (live and dead – skeletons). Primnoa resedaeformis colonies were mostly small, and abundant at certain parts of the dive. No sampling was possible during this dive due to a mix of strong currents and ROV issues.

Organization: Amundsen Science
Hydrocarbon concentrations in Baffin Bay sediments and benthic invertebrates (NGMP ID EC13)

Sample collections were made aboard the CCGS Amundsen during the ArcticNet field campaigns in August 2013 (Leg 1), July, August and October 2014 (Leg 1 & 3) and October 2015 (Leg 4). Sediment samples retrieved from box cores were sliced into 0.5 cm increments and frozen separately, while benthic invertebrates were collected using a benthic trawl. Individual species including Gorgoncephelus arcticus, Psilaster andromeda, Ophiopleura borealis and Ctenodiscus crispatus were identified, sorted, packed and stored at -30C and shipped to Winnipeg. At the University of Manitoba samples were freeze-dried and homogenized. Samples were then extracted and analyzed for polycyclic aromatic hydrocarbons (PAHs) and n-alkanes using a LECO Pegasus gas chromatographer with a high resolution time of flight mass spectrometer (GC-HR TOFMS). Supplementary data was also generated, including stable isotope ratios of nitrogen and carbon, as well as lipid (inverts) and total organic carbon (sediment) to calculate biota-sediment accumulation factors (BSAFs). Statistical analysis is currently ongoing.

Organization: Amundsen Science
CFL 0803 - Beaufort Sea CTD data

The CTD data was obtained during the 2007-2008 scientific cruise #0803 within the framework of the Circumpolar Flaw Lead Study (CFL). This program included a year round sampling expedition to study the air-sea interactions occurring in the ice-free sections of the southern Beaufort Sea and Amundsen Gulf.

The data were collected from April 26 to June 4, 2008, aboard the CCGS Amundsen. There were 144 CTD casts, associated to 29 stations (including 9 ice-drifts), located in the Beaufort Sea research area.

The following parameters were measured: temperature, conductivity and pressure (with a Sea-Bird SBE-9plus), dissolved oxygen (Sea-Bird SBE-43), pH (Sea-Bird SBE-18-I), fluorescence (Seapoint chlorophyll fluorometer), nitrate concentration (Satlantic MBARI-ISUS 5T), transmittance (Wetlabs C-Star transmissometer), light intensity (PAR; Biospherical Instruments QCP2300) and surface light intensity (sPAR; Biospherical Instruments QCP2200). Quality control procedures were applied to the data. Data are available on the Polar Data Catalogue and at the Marine Environmental Data Service (MEDS) of Fisheries and Oceans Canada.

Organization: Amundsen Science
Moving Vessel Profiling (MVP) data collected by the CCGS Amundsen in the Canadian Arctic

The Canadian research icebreaker CCGS Amundsen is equipped with a Moving Vessel Profiler (MVP), a versatile instrument designed to collect both shallow and deep water data sets without the need to halt the vessel. During transects, multiple consecutive casts of the MVP are conducted, facilitating the collection of data on the physical and chemical characteristics of the water column.

The MVP was deployed during the Amundsen scientific expeditions, spanning the summer and fall of 2004 to 2024, with the exception of 2005, 2006, and 2019. Data was unavailable for 2012 due to the ship undergoing maintenance. The system components underwent slight variations throughout the year, typically comprising a Micro CTD (Temperature, Conductivity, and Pressure), a Micro DO2 (Dissolved Oxygen), a Micro SV (Sound Velocity and Pressure), an ECOFLO (Fluorescence), and a C-Star (Transmittance) probe.

The MVP data were meticulously corrected and controlled by comparing them to CTD-Rosette and thermosalinograph (TSG) data whenever feasible. Comprehensive metadata and reports are provided to support the information presented and serve as documentation regarding the data processing methodologies.

Organization: Amundsen Science
Dissolved organic carbon distribution in the Canadian Arctic, fall 2007

The distribution of dissolved organic carbon (DOC) in the water column of the Canadian Arctic was investigated in 2007, as part of the ArcticNet program. Summer-fall DOC concentrations were measured at 30 stations between 29 September and 3 November 2007. Samples were collected using the rosette onboard the CCGS Amundsen.  Euphotic zone sampling depths corresponded to surface irradiances between 0.2 and 100% as well as the chlorophyll a maximum depth. Aphotic sampling depths ranged from 75 m to the bottom waters.

Organization: Amundsen Science
Predictive models of macrobenthos patterns in the southeastern Beaufort Sea and Amundsen Gulf

This study is based on sampling conducted partially within the framework of the (1) Arctic Biological Station program-Biological Oceanography Section (ABS-BOS) from 1973 to 1975, (2) CCGS Sir Wilfrid Laurier program and CASES from 2002 to 2004, (3) IPY-CFL from 2007 to 2008, (4) through research collaborations among the CCGS Amundsen program, ArcticNet, BP Exploration Operating Company Limited, ExxonMobil and Imperial Oil from 2009 to 2011, and (5) BREA in 2012.

Macrobenthos communities were sampled at 235 stations from 1973 to 2012 between April and November through different scientific programs and onboard different research vessels. Faunal samples were collected mostly with a USNEL box corer (0.25 m2), except from 1973 to 2002 where different grab models were used. Due to shared sediment requirements, on average 0.12 ± 0.05 m2 of sediment were sieved from each box core or grab sample. All box core and grab catches were washed under running seawater onboard over a 0.4 mm sieve during the CASES program and over a 0.5 mm sieve during all other programs, resulting in all macrobenthic invertebrates considered here being &#8805; 0.5 mm size.

Taxa were preserved in a 4 to 5 % seawater-formaldehyde solution buffered with sodium tetraethylborate for later identification in the lab and then transferred in 70 % ethanol for long-term storage.

Organization: Amundsen Science