AndreaBozzo/ceres-open-data-index huggingface dataset:
ArcticNet 0502b - Hudson Bay CTD data

The CTD data was obtained during the 2005 ArcticNet scientific cruise #0502. The data were collected from September 23 to October 16, 2006, aboard the CCGS Amundsen. There were 115 casts, associated to 79 oceanographic stations, in the Hudson Bay. 

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
Ringed seal (Phoca hispida) tagging project via the moon pool of the CCGS Amundsen

Ringed seals have been reported to enter and use extensively the moon pool on multiple occasions during the CASES project. A net was designed to attempt to capture ringed seals from the moon pool onboard the CCGS Amundsen during a three week period of leg 6a. Captured seals were to be restrained, measured and a satellite transmitter (SPLASH PTT/TDR - Wildlife Computer) attached on their back before release. While one ringed seal did use the moon pool to rest during the three week period, we were not able to physically capture and tag any seals during the trip. We ruled out the net as designed in the first place as a good seal catching device in the moon pool, and created a new design that should be more functional. Considering seals' behaviour (once seals have found the moon pool, they keep using it) and how the moon pool is used onboard the ship, we discovered it was not necessary to deploy the net overnight if no seals have been spotted in the moon pool the day before. We are confident though that a future attempt to catch seals onboard the CCGS Amundsen will have more chances to be successful.

Organization: Amundsen Science
Iceberg Beacon Track Database

The Iceberg Beacon Track Database is a collection of 224 iceberg drift tracks with a total of 719,045 positions from the Arctic and (North) Atlantic oceans. Each track is accompanied by metadata that describes the iceberg shape, dimensions (m), beacon model, and other ancillary information that can be used in research related to iceberg drift climatology, developing and validating drift models, and validating remote sensing iceberg detection algorithms. The beacon tracks were collected by 12 academic, industry, and government research groups from 1997 to 2025. They all include timestamps (UTC) and position data (latitude and longitude: dd.dddd°), and may include temperature (K), barometric pressure (Pa), heading, pitch, and roll (degrees). All beacon tracks have been processed and consolidated into the same framework, and are available in geospatial formats for mapping and analysis. Although the current data extent is largely within Canadian waters, we consider all drift tracks of Northern Hemisphere icebergs and related features (ice islands, bergy bits, and other fragments) to be within the scope of this collection. We encourage those who have beacon tracks to submit them for inclusion into subsequent versions of the Iceberg Beacon Track Database.

Organization: Amundsen Science
Fast Repetition Rate Fluorometry-based measurements of non-photochemical quenching in Arctic phytoplankton assemblages

Non-photochemical relaxation experiments were conducted by introducing seawater samples (~3mL) to a Fast Repetition Rate fluorometer (FRRF; Soliense Inc.) optical cuvette. Samples came either from underway seawater lines onboard oceanographic vessels, or were subsampled from niskin bottles during on-station sampling. Samples were exposed to a relatively high irradiance level, 500 umol photons m^(-2) s^(-1) for one minute and then were continuously monitored for 30 minutes under low irradiance condition (5 umol photons m^(-2) s^(-1)). Actinic light was provided by LED lamps within the FRRF controlled by Soliense software. Non-photochemical quenching yields recorded through the observation period were fit with a three-component exponential decay model to characterize the relaxation rates of individual quenching components. Both the raw data and fitted parameters are available here. The dataset is divided by sampling region (Canadian Arctic underway data, Canadian Arctic on-station data, Svalbard Archipelago data). See Sezginer et al. (2023) for further details regarding the treatment of samples and computational analysis of fluorescence data.

Organization: Amundsen Science
2009 Multibeam Sonar Data collected from the CCGS Amundsen

Ocean Mapping Group acoustic data generated from the 2009 multibeam sonar survey on the 2009 CCGS Amundsen ArcticNet Cruise. The data include high-resolution bathymetry and acoustic backscatter imagery collected 24 hours a day, whenever the ship was in transit or had dedicated survey time.

Organization: Amundsen Science
2016 ROV video surveys (Dives 50-51) in a deep-water environment at Hatton Basin (Labrador, Canada) aboard CCGS Amundsen

Video surveys were conducted in July 2016 aboard CCGS Amundsen, using a Super Mohawk remotely operated vehicle (ROV) at Hatton Basin, Labrador (Canada). ROV dives occurred at two nearby sites (~28 km apart) in the Hatton Basin area (Dives 50 and 51). The benthic environment was video-recorded and photographed using a high-definition camera (1Cam Alpha, Sub C Imaging, 24.1 megapixels) mounted on the ROV, at depths ranging between 556-633 m. ROV transects were conducted to collect video data, and samples of corals and sponges were also collected during dive 51. Box-cores were deployed at the two sites. Sea water was collected at several depth intervals from surface to near-bottom to characterize particulate organic matter and to determine calcium carbonate saturation.

Organization: Amundsen Science
Fine-scale time series of surface dimethylsulfide concentrations across ice-covered and ice-free waters of the Canadian Arctic Archipelago in summer, 2017

This study presents sea surface concentrations of marine dimethylsulfide (DMS) measured across the Labrador Sea and the Canadian Arctic Archipelago during summer of 2017 (July-August). Using a novel automated instrument (ACT-MIMS) more than 2500 DMS observations were collected at high frequency alongside ancillary measurements of salinity, temperature, fluorescence (chlorophyll a proxy), solar radiation, ice concentration and the algal precursor of DMS, dimethylsulfoniopropionate. DMS concentrations ranged from ca. 1 to 32 nmol L-1 (average of 6 nmol L-1) in 2017 over an area covering a wide range of contrasting marine environments from coastal to open ocean, ice-free waters, as well as under-ice waters. Surface water DMS hotspots were measured in association with thermohaline oceanographic features in high productivity coastal waters, as well as with the presence of ponded first-year ice (FYI). Nighttime increases and daytime decreases of DMS concentrations were also observed in productive areas of the Labrador Sea and Davis Strait continental shelf. The association of DMS concentrations with diurnal solar radiation variation suggests the involvement of photobiological processes. Overall, our results strengthen the view that aqueous DMS cycling in the Arctic is intimately linked with sea ice dynamics and physiological responses to light. As such, future changes in the seasonality of the Arctic cryosphere will likely play an important role in shaping DMS emissions, although the sign and magnitude of the change remain highly uncertain.

Organization: Amundsen Science
Benthic biodiversity in relation to environmental variables in the Canadian Arctic

Benthic fauna were sampled at 78 stations between June and October from 2007 to 2011 onboard the Canadian research icebreaker CCGS Amundsen. Station depths ranged from 34 to 1024 m, all below the average ice scouring zone. All faunal samples were collected with an Agassiz trawl (effective opening of 1.5 m and a 40 mm net mesh size, with a 5 mm cod end liner) with average trawling time and speed of 5 min and 1.5 knots, respectively.

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

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
Aerial-photo and LiDAR iceberg surveys during the 2015 Joint Statoil/ArcticNet Cruise, Newfoundland and Labrador, Canada

Triplicate aerial-photo and LiDAR surveys of two iceberg sails were conducted to evaluate the capability of each technique to detect iceberg or ice island deterioration. This evaluation lays out how the spatial pattern and rate of iceberg deterioration could be measured with repeat surveys. 3D representations of the iceberg sails were generated from the aerial-photo surveys with the structure-from-motion (SfM) processing method as well as directly from the LiDAR data. The SfM data was scaled using GPS markers deployed on the icebergs prior to surveying and these were also used to correct the LiDAR data for iceberg drift. Scripts which were written for drift correction are included with the data. Alternative drift correction workflows can be developed and tested with the uncorrected data. The GPS data, some of which extends after the surveying was complete, can be utilized for drift analyses and drift model improvement. The dataset contains: image files from aerial-photo surveys (.nef and .tif), LiDAR point clouds (.txt files with lat/lon/elevation/timestamp) pre-and post-drift correction, INS (inertial navigation system) data (.txt files), GPS tracks (.csv files with lat/lon/elevation/timestamp), GPS error and PPP (Precise Point Positioning) output (.csv files), and point cloud scaling information. This data was collected during a collaboration between Statoil ASA and ArcticNet which ran during Leg 1 of the 2015 research cruise on board the CCGS Amundsen.

Organization: Amundsen Science
ArcticNet 0806 - Baffin Bay CTD data

The CTD data was obtained during the 2007-2008 ArcticNet scientific cruise #0806. The data were collected from September 5 to 25, 2008, aboard the CCGS Amundsen. There were 83 casts, associated to 44 oceanographic stations, in the Baffin Bay 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
2005 Multibeam Sonar Data collected from the CCGS Amundsen

Ocean Mapping Group acoustic data generated from the 2005 multibeam sonar survey on the 2005 CCGS Amundsen ArcticNet Cruise. The data include high-resolution bathymetry and acoustic backscatter imagery collected 24 hours a day, whenever the ship was in transit or had dedicated survey time.

Organization: Amundsen Science
Ship-Based Meteorological Data, 2009 ArcticNet, Beaufort Sea

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
2014 ROV video survey in a deep-water environment at Home Bay, Nunavut, aboard CCGS Amundsen

In July 2014 a Super Mohawk (SuMo) remotely operated vehicle (ROV) aboard the CCGS Amundsen was used to video-survey a deep-water environment at Home Bay. A video-transect ~2.2 km long was followed across depths of 700-750 m. Videos and photographs were obtained using a high-definition camera, and specimens of invertebrates (sponges) were collected using the ROV.

Organization: Amundsen Science
Dimethylsulfide dynamics in first-year sea ice melt ponds in the Canadian Arctic Archipelago

Nine melt ponds distributed between four stations located in Navy Board Inlet, Barrow Strait, and Resolute Passage were sampled during the joint NETCARE/ArcticNet research cruise conducted in July 2014 on board the Canadian Coast Guard Ship (CCGS) Amundsen (Station 1: 73°31.656, -80°59.385, Station 2: 74°16.774, - 91°37.990, Station 3: 74°14.274, -92°11.808 and Station 4: 74°36.217, -94°54.611). Additional surrounding ice sampling was only possible at three of the stations (1, 3 and 4). Measurements of sea ice and snow thickness, along with sea-ice freeboard were conducted within a 3 metre distance of the melt ponds on July 18 for Station 1, July 21 for Station 3 and July 23 for Station 4. Two ice cores for sea-ice temperature and salinity measurements were extracted at every Ice Station. Sampling at Station 2 took place on July 20. Melt pond depth, length and width were determined as well as melt pond temperature and salinity. For each sampling location, the maximum pond fraction was estimated. Chlorophyll a, bacterial abundances and microscopic identification of eucaryotic cells were performed. Replicate samples for total dimethylsufoniopropionate (DMSP) (DMSPt), dissolved DMSP (DMSPd) and DMS measurements were collected from the melt ponds. In addition to this, the pathways of in situ DMS production in melt ponds were examined via three 24 hour incubation experiments using stable isotopes with melt ponds water from three stations (1, 3 and 4).

Organization: Amundsen Science
Deterioration Data Collected from 'Petermann Ice Island-A-1-f' While Grounded Near Qikiqtarjuaq, Nunavut, 2015 - 2017

A data collection program was carried out between October 2015 and September 2017 to monitor the thinning and overall deterioration of "Petermann Ice Island (PII)-A-1-f". This large, tabular iceberg was a fragment of the 2012 Petermann Glacier calving event. Four field teams visited the ice island, and a stationary ice penetrating radar (sIPR) was installed on PII-A-1-f in October 2015 while the large, tabular iceberg was grounded near Qikiqtarjuaq, NU. The instrument was designed by Blue Systems Integration, Ltd. and was installed during the annual ArcticNet research cruise on board the CCGS Amundsen. It collected the first field dataset of ice island thinning, and along with surface ablation observations, the data were used to calibrate a forced-convection basal ablation model. Mobile IPR data were repeatedly collected over 2.4 km to assess the spatial variation in thinning and assess how well the sIPR measurements represented the conditions elsewhere on the ice island. Auxiliary data included photos, ablation stake measurements, sonic ranger recordings, air temperature measurements, GPS locations, and RADARSAT-2 synthetic aperture radar (SAR) imagery. The latter were collected to monitor the surface areal extent of the ice island. The dataset contains: IPR measurements (.h5), GPS data collected along the  mIPR transect (.csv), image files of ablation stakes (.jpg), air temperature data, sonic ranger measurements, and GPS positions of the weather station (.csv), georeferenced Fine-Quad (8 m nominal resolution) RADARSAT-2 SAR images (.tif) and polygon shapefiles delineating the areal extent (.shp).

Organization: Amundsen Science
Ship-Based Eddy Covariance Data, 2008 ArcticNet, Northern Baffin Bay

During the ArcticNet annual cruises of the research icebreaker CCGS Amundsen, characteristics of the near-surface atmosphere are monitored in conjunction with surface sea water properties to observe the relationship between the surface micro-climate and the air-sea exchange , with particular interest in CO2.  Central to this integrated dataset is an eddy covariance system used to monitor fluxes of CO2, H2O, heat and momentum.  The system continuously sampled the following variables at a rate of 10 Hz (instrument used to collect each variable is in parentheses, and approximate instrument height above surface is indicated):

-3D wind velocity (Gill R3 and Gill Windmaster Pro ultra-sonic anemometer) - 15m
-Sonic air temperature (Gill R3 and Gill Windmaster Pro ultra-sonic anemometer) - 15m
-CO2 molar concentration (LI7500 open path gas analyzer) - 15m
-H2O molar concentration (LI7500 open path gas analyzer) - 15m
-CO2 mixing ratio (LI7000 integrated into a closed path system) - 15m
-H2O mixing ratio (LI7000 integrated into a closed path system) - 15m
-3D ship motion - angular rates and accelerations (MotionPak, Systron Donner) - 13m

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

Organization: Amundsen Science
ArcticNet 1003c - Labrador Fjords CTD Data

The CTD data was obtained during the 2010 ArcticNet scientific cruise #1003c.

The data were collected from October 24 to 27, 2010, aboard the CCGS Amundsen. There were 19 casts associated to 19 stations, located in the Labrador Fjords.

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; 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
Phytoplankton light absorption properties in Southern Beaufort Sea and the Amundsen Gulf

Field observations were made in the southern Beaufort Sea and the Amundsen Gulf as part of CASES 2003 expedition. Samples were collected during the first two legs of the expedition from 13 September to 14 October 2003 (open water) and from 15 October to 25 November 2003 (newly formed sea ice) onboard the Canadian icebreaker CCGS Amundsen. Temperature and salinity profiles were obtained using a SeaBird 911 Conductivity¿Temperature¿Depth (CTD) probe. Nutrient concentrations (nitrate plus nitrite, phosphate, and silicate) were determined on fresh samples (within 1 h of  sampling) using standard colorimetric methodologies adapted for use on an Auto-Analyzer 3 (Bran þ Luebbe). A RAMSES ASC scalar hyperspectral irradiance sensor (TriOS) was mounted on the flight bridge to measure downwelling irradiance with 1 nm intervals during the day. A total of 50 and 102 discrete water samples were collected over the euphotic zone at 13 and 20 stations for legs 1 and 2, respectively for fluorometrically chlorophyll a measurements and absorption analysis of phytoplankton, non-algal particules (NAP) and colored dissolved organic matter (CDOM). Water samples (preserved in acidic Lugol solution) were enumerated and identified to the lowest possible taxonomic rank using an inverted microscope. Concentrations of chlorophyll a and chlorophyll b were obtained by HPLC measurements and these two pigments were used for the calculation of the ratios of chl b to chl a.

Organization: Amundsen Science
Assessing Legacy and Emerging Contaminants in Canadian Arctic Air and Water Bodies as an Entry Point into the Arctic Food Chain: 2023-2024

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 retardants 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