AndreaBozzo/ceres-open-data-index huggingface dataset:
Precipitation (Laser precipitation gauge) in the southern Beaufort Sea and Amundsen Gulf, 2007-2008

Raw and post-processed precipitation data were collected using a Thies Clima laser precipitation gauge.  The instrument was mounted on the railing of the deck atop the bridge of the Amundsen icebreaker.  It should be noted that there was no good location to install the instrument, and wind eddies may have influenced this dataset.

Organization: Amundsen Science
Bottom water samples for particulate organic matter (POM) carbon (C) and nitrogen (N) stable isotopic composition in Baffin Bay, Nunavut

Bottom water (20 L per station) was collected at 11 stations in Baffin Bay using the CCGS Amundsen’s rosette system. Water was filtered aboard the vessel into glass microfiber (GF-F) filters for Carbon and Nitrogen stable isotopic composition analysis. These data will be used in combination with data on soft coral stable isotopic composition collected from the same region.

Organization: Amundsen Science
Ship-Based Meteorological Data, 2007 ArcticNet, Hudson Bay

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
PAR and UVR downwelling irradiance in the Southeastern Beaufort Sea in 2003-2004

This dataset consists of continuous records of downwelling irradiances at several UVR (305, 313, 320, 340 and 380nm) and PAR wavelengths, from September to November 2003 and from June to August 2004. The GUV-510 surface radiometer (Biospherical Instruments), mounted on the top of the wheelhouse of the CCGS Amundsen, provided a measure of cosine-corrected downwelling irradiance in the UVR and PAR.

Organization: Amundsen Science
Assessing Legacy and Emerging Contaminants in Canadian Arctic Air and Water Bodies as an Entry Point into the Arctic Food Chain: 2022-2023

As part of NCP and ArcticNet, air, water, sediment and zooplankton samples were collected from on board the CCGS Amundsen. Additional water samples were collected from the CCGS Laurier in the Beaufort Sea. 
Different types of water samples were collected: grab and passive samples. Grad samples of surface water (1-L) and water at depth were collected in glass bottles for flame retardatns and shipped back to the lab for processing. 
Grab samples for per-fluorinated compounds (1-L) were also collected at the surface and at two-three depths in plastic bottles and shipped back to the lab for processing. 
Grab water samples (100-L) were also collected for legacy and current use pesticides and plastic associated chemicals. 
Passive water samples were placed on mooring lines in the Beaufort Sea and Baffin Bay, these samples remain in the water column for a year,  after which they are retrieved and sent back to the lab for analysis. 
Air samples are collected form the bow of the CCGS Amundsen, these are continuous samples used to monitor legacy and current use pesticides, flame-retardants, per- and poly-fluorinated compounds and plastic associated chemicals. 
Sediment are taken with a sediment corer, the surface 0-5cm is scraped, placed in a glass jar and set back to the lab for analysis for the same chemicals listed above. 
Zooplankton samples are collected using trawls with net size of 200um. The bulk zooplankton is speciated and analyzed for the chemicals list above. 
When back in the lab, the samples are extracted, processed and analyzed by gas-chromatography mass spectrometry and/or liquid chromatography-mass spectrometry.

Organization: Amundsen Science
Ship-Based Incoming Solar and Longwave Radiation, 2008 ArcticNet, Northern Baffin Bay

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.  As part of this integrated dataset, the following radiation variables were recorded at 1 minute intervals (instrument used to collect each variable is in parentheses):

-Incoming shortwave radiation (Eppley pyranometer, model PSP)
-Incoming longwave radiation (Eppley pyrgeometer, model PIR) 
-Incoming photosynthetically active radiation (Kipp & Zonen, PAR-Lite)
-Incoming UV-A radiation (Kipp & Zonen UVS-AB-T)
-Incoming UV-B radiation (Kipp & Zonen UVS-AB-T)

All instruments were mounted on a platform above the wheelhouse of the CCGS Amundsen

Organization: Amundsen Science
Onshore-offshore surveying and monitoring of selected arctic coastal areas of Nunavut, 2006-2009

Onshore research was conducted using the following methods: multi-temporal analysis and mapping of modern and raised coastal systems using airphotos, satellite imagery, LiDAR and RTK GPS surveys. Data on the sediment composition of coastal landforms was collected using graded photographs and in situ measurments of gravel samples. Shallow-water mapping of transgressive coastal systems was carried out using multibeam sonar and sub-bottom profiler primarily from the CCGS Amundsen  (EM300 30 kHz) and the CSL Heron (EM3002 3.5 kHz) during the 2006 ArcticNet NCE scientific cruise and from the CCGS Henry Larsen and the CSL Heron in 2008.

Organization: Amundsen Science
ArcticNet 0501c - Beaufort Sea CTD data

The CTD data was obtained during the 2005 ArcticNet scientific cruise #0501. The data were collected from September 1 to 14, 2005, aboard the CCGS Amundsen. There were 62 casts, associated to 30 oceanographic stations, in the Beaufort Sea. 

The following parameters were measured: temperature, conductivity and pressure (with a Sea-Bird SBE-9plus), oxygen (Sea-Bird 43), pH (Seabird 18), fluorescence (Seapoint fluorometer), nitrates (Satlantic MBARI ISUS), transmittance (Wetlabs C-Star transmissometer), PAR/Irradiance and SPAR/Irradiance (Biospherical Instruments QC2300). Data were quality controlled. Data are available on the Polar Data Catalogue and at the Marine Environmental Data Service (MEDS) of Fisheries and Oceans Canada.

Organization: Amundsen Science
Ship-Based Meteorological Data, 2014 ArcticNet, Baffin Bay and Northwest 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 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
Temporal dynamics of phytoplankton chlorophyll a concentrations in Frankiln Bay (Southeastern Beaufort Sea) in winter and spring 2003-2004

This dataset consists of vertical profiles of discrete depth sampled weekly at a fixed station under the ice in Franklin Bay (Southeastern Beaufort Sea) for chlorophyll a concentration of different size fractions: >0.7µm and >5µm. Sampling took place from December 2003 to May 2004 through the moon-pool of the CCGS Amundsen for depth ranging from 10m to the bottom and through a hole in the ice cover for the surface depth (3-10m). Chlorophyll a concentrations were determined by fluorimetry.

Organization: Amundsen Science
Protist communities in Franklin Bay (Beaufort Sea) using environmental DNA analysis

Samples were collected from the icebreaker CCGS 'Amundsen' into Franklin Bay from fall 2003 to summer 2004 at depth between 160 m and 200 m with a Seabird rosette system equipped with 12 l Niskin-type bottles and a Seabird 911+ CTD probe (salinity, temperature, depth). Fluorescence (Seapoint), transmissivity (WetLabs C-Star Transmissometer), photosynthetically available radiation (PAR; Biospherical Biospherical Instruments), and relative nitrate concentrations (Satlantic MBARI ISUS) were also recorded. Water for DNA analyses was sequentially filtered through a 100 um mesh, a 3 um pore size filter and a 0.2 um pore size Sterivex unit by positive displacement using a peristaltic pump. These DNA analysis were performed on the 3 um filters (large fraction) and the 0.2 um Sterivex units (small fraction): DNA extraction, PCR amplification of sample DNA, DGGE analyses, PCR amplification of 18s rRNA genes, clone libraries construction, taxonomic affiliation and phylogenetic analyses. Sequences from this study are available from GenBank under accession numbers FJ169684 to FJ169852 and FJ775605 to FJ775666.

Organization: Amundsen Science
MUN Glider Deployment: Unit 334, Labrador Sea, 2014-07-05

Over the past 15 years, Memorial University has been involved in various ocean glider activities, with deployments focused primarily on the Newfoundland Shelf and the Labrador Sea. For example, four deployments with glider data are in the Labrador Sea. Partnerships with Fisheries and Oceans Canada and Ocean Gliders Canada have also resulted in deployments of Memorial's gliders in the Pacific. The data contain 14,663 mission km, 620 deployment days and 25,108 individual glider profiles.

L1 NetCDF files for every deployment archived on Memorial University's Glider Data server are publicly available for scientific research. Deployments vary in duration and region. All files were processed with the SOCIB glider toolbox (Troupin et al., 2015), modified by Nicolai von Oppeln-Bronikowski, 2019 for MUN glider deployments.

This glider deployment occurred between 05 July 2014 and 22 July 2014 over the Labrador Shelf, Canada.

Organization: CIOOS-Atlantic
GEOTRACES: Multi-tracer investigation of the effect of climate change on nutrient and carbon cycles in the Arctic Ocean

Our sampling program took place from August 27, 2009 through September 12, 2009. It was part of Leg 3a of the 2009 CCGS Amundsen Expedition in the Arctic Ocean (ArcticNet 0903). Sampling started in the Mackenzie River delta and continued into the Beaufort Sea (Shelf, slope and deep Canada Basin). Various measurements (temperature, salinity, nutrients, alkalinity, pH, primary production, bacterial production) and sampling (seawater, marine particles) were conducted at 10 stations. Underway measurements (temperature, salinity, trace gases) and sampling (marine particles) were also conducted along the cruise track. Sampling tools on stations were the ship's CTD/rosette (ArcticNet), a Trace-Metal CTD/rosette system (UVic / UBC) and large volume in-situ pumps (UBC).

We conducted measurements and collected samples to document a suite of key physical (temperature, salinity, ice cover, light penetration), chemical (nutrients, trace metals, trace gases, radioisotopes, stable isotopes) and biological (phytoplankton and microbial assemblages, primary and microbial productivity, trace metal phytoplankton quotas) parameters in relation to proximity to the Mackenzie River delta, seafloor bathymetry and ice cover to elucidate the processes influencing phytoplankton growth and carbon cycling in the Arctic Ocean. In particular, we collected samples to study the processes which supply and remove trace metals, nutrients and carbon to and from the upper ocean, and conducted ship-board experiments to study how biological productivity is affected by various chemical and physical conditions.

Through a combination of on-board measurements, experiments and subsequent laboratory analysis, our research program aims at: (i) documenting the pathways of addition, removal and cycling of key trace elements which act as biological micronutrients or tracers of carbon and nutrient cycles in the Arctic Ocean; (ii) elucidating the potential effects of changing ice cover and river discharge on productivity, carbon sequestration and trace gas emission in the Arctic Ocean; (iii) developing chemical tracers to establish a historical sedimentary record of Arctic Ocean productivity in relation to long term natural climate change.

Organization: Amundsen Science
Mercury and stable isotopes data in zooplankton across the Canadian High Arctic: Northwater Polynya and Baffin Bay

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 Celsius. 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 Electronics, Inc.).

Organization: Amundsen Science
Temporal dynamics of bacteria abundance in Frankiln Bay (Southeastern Beaufort Sea) in winter and spring 2003-2004

This dataset consists of vertical profiles of discrete depth sampled weekly at a fixed station under the ice in Franklin Bay (Southeastern Beaufort Sea) to determine bacteria abundance. Sampling took place from December 2003 to May 2004 through the moon-pool of the CCGS Amundsen for depth ranging from 10m to the bottom and through a hole in the ice cover for the surface depth (3-10m). Bacteria concentrations were counted by flow cytometry.

Organization: Amundsen Science
Hydrobios-CTD data collected by the CCGS Amundsen in the Canadian Arctic

The Canadian research icebreaker CCGS Amundsen is equipped with multi-plankton sampler system called Hydrobios. The MultiNet Type Maxi, part of the system, is used for vertical collections. An integrated CTD unit is also integrated to the system and allows recording of the sampled water characteristics. This dataset is composed of CTD profiles and specific data for the volume of water going through the nets during their operation. The Hydrobios was deployed during the Amundsen scientific expeditions in the summer and fall between 2003 and 2023 with the exception of 2004, 2005, 2009, 2011 and 2012, where no data is available. The integrated CTD sensors are from the Hydrobios company itself. In-situ data belong to and are under the responsibility of the leading Nets scientists while physical and chemical data from the sensors are part of the Amundsen core data collection.

The Hydrobios-CTD data were corrected and controlled by comparing them to CTD-Rosette data when available.  Outliers and suspicious measurements were removed from the dataset. Variables are provided for every 2 decibars (dbar) between the maximum and minimum pressure recorded for each cast.

Organization: Amundsen Science
2018 ROV video survey in at NE Saglek Bank 750 m (Northern Labrador) aboard CCGS Amundsen (dive 66)

A remotely operated vehicle (ROV) video survey was conducted at the Saglek Bank location, at a depth of ~750 m in July 2018. The main objectives of this dive were to video-survey coral and sponge fauna on ridge at 750 m depth, and to collect coral and sponge samples. Bottom type was mainly sandy and gravel, with boulders in some parts of the transect. Corals include the solitary scleractinian Flabellum sp., soft corals (Nephtheidae), mushroom soft corals (probably Anthomastus sp.), sea pens Anthoptilum (erect and also lying on sea floor) and Halipteris finmarchica on sandy gravel bottom. Dead sea pen skeletons were also observed.
Sponges include Asconema sp., Geodia sp., encrusting blue sponges (Hymedesmia sp.), and some unidentified fan-shape sponges. Among fish, we observed redfish (Sebastes spp.), small grenadiers (Family Macrouridae), and small (likely juvenile) skates (Family Rajidae). Other invertebrates include unidentified squat lobsters, sea anemones, and crabs.

Organization: Amundsen Science
Total and methylated mercury in Canadian Arctic waters (2016)

Unfiltered aqueous total and methyl mercury concentrations were measured from water collection on board the NGCC/CCGS Amundsen at stations within the Beaufort Sea, Amundsen Gulf, and the Canadian Arctic Archipelago. Profiles of 10-12 m depth resolution were collected from 15 stations using the ship rosette system. Total mercury samples were analyzed on board. Methylmercury samples were preserved and transported to Winnipeg for analysis. Interpretation of results will also rely on supporting data from ArcticNet collaborators to identify water masses and determine biological productivity that determine the relative importance of external sources and internal cycling.

Organization: Amundsen Science
Ceilometer data taken in Beaufort Sea, Northwest Passage, Baffin Bay, Canadian Arctic, ArcticNet 2016

Raw backscatter data were collected from a CT25K ceilometer. A ceilometer is a device that uses a laser or other light source to determine the height of a cloud base. Ceilometers can also be used to measure the aerosol concentration within the atmosphere. Sampling took place from May to October 2016 in the Beaufort Sea, Northwest Passage, Baffin Bay (Canadian Arctic) during the cruise onboard the CCGS Amundsen icebreaker. The CT25K is designed to detect three cloud layers simultaneously up to around 18 000 ft, given suitable conditions. Besides cloud layers, it detects whether there is precipitation or other obstruction to vision. Output files were created hourly by the system and are in ASCII format.

Organization: Amundsen Science
Influence of deep-water corals and sponges gardens on infaunal community composition and ecosystem functioning in the Eastern Canadian Arctic

Samples were collected at two sites in the Eastern Canadian Arctic (Figure 1) aboard the scientific icebreaker CCGS Amundsen. The sampling positions at biogenic and non-biogenic habitats were defined during ROV video surveys at the two sites (Figure 2a-d). Positions were carefully selected to avoid overlap between the two types of habitats (i.e., when most of the camera’s field of view was dominated by a single habitat over the course of approximatively 5 meters). At each site, we deployed two box cores (0.5 × 0.5 m) per habitat (i.e., inside the biogenic structures and in the bare sediment; Figure 2e) approximately 200 m apart in FB site and 500 m apart in BB site. From each box core, we collected three sediment cores (i.d = 9.8 cm, H = 30 cm) for a total of six cores per habitat and 12 cores per site. Sediment cores sampled in biogenic structures habitats were visually exempted from biogenic structures. Bottom (10 m above the seafloor) temperature, salinity and oxygen saturation at each site were recorded with a conductivity-temperature-depth (CTD) probe. Sediment cores were incubated in the dark at a temperature-controlled room (2-4°C) until a maximum of 20% of available oxygen was consumed.
Sediment samples for chlorophyll a, phaeopigments and sediment properties were also collected from each box core. sediment cores were sieved through a 500 µm mesh sieve to collect infauna. Organisms were fixed with 4% formaldehyde solution. They were sorted under a dissecting microscope in the laboratory and identified to the lowest possible taxonomic level.

Organization: Amundsen Science
SX90 sonar data in the Eastern Canadian Arctic: 2013

The data set is composed of raw files recorded with the Kongsberg Maritime SX90 long-range, low frequency (20-30 kHz) fisheries sonar during the CCGS Amundsen 2013 summer expedition in the Eastern Canadian Arctic. The sonar transducer is lowered 2.5 feet below the hull through a gate-valve. The cylindrical 256-elements transducer allows both a horizontal and a vertical sound transmission, and the omni-directional (horizontal) sonar beam can be tilted from +10 to -60 degrees to scan a large portion of the water column. The raw acoustic data were saved onto an external drive and print screens of interesting targets (fish schools) were recorded.

Organization: Amundsen Science
Mooring data of the Integrated Beaufort Observatory (iBO), a project from the Beaufort Regional Environmental Assessment (BREA) Marine Observatories in the Canadian Arctic.

The iBO project has supported the deployment of four moorings at key locations identified during the previous northern and southern Beaufort Sea monitoring initiatives (see CCIN 11925 ArcticNet-Industry 2009-2011 moorings and CCIN 11975 BREA 2011-2015 moorings). Since fall 2015, BRG and BR1 from BREA were redeployed along with two new moorings BRK and BR3.  For every year of deployment, each mooring line was equipped with various oceanographic instruments attached at different depths from approximately 150 m to 750 m. Moored instruments include conductivity-temperature sensors, ice profiling sonars, particle analyzers, current meters, current profilers, and sediment traps. Datasets include currents, ice draft and velocities, water levels, temperature, salinity and turbidity, chlorophyll, suspended particulate size and concentration, and vertical carbon flux. 

Data collected were quality assessed/quality controlled (QA/QC) following the Climate and Forecast (CF http://cfconventions.org/) conventions, and building upon the open-source Integrated Marine Observatory System (IMOS) toolbox developed for Matlab© by the Australian Ocean Data Network (AODN). The four moorings provided ready to use quality data for the period 2015-2017. BR1 provided an extra year of data for 2017-2018, whereas BR3, BRG, and BRK are still at sea and being recovered (Fall 2019). The program ended officially in 2018; however, Amundsen Science and its collaborators maintain the observatory and monitoring capacity in the region with one mooring BRG pending new funding and interests for the program.

Organization: Amundsen Science