AndreaBozzo/ceres-open-data-index huggingface dataset:
Ship-Based Incoming Solar and Longwave Radiation, 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.  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)

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

Organization: Amundsen Science
ArcticNet 0704b - Hudson Bay CTD data

The CTD data was obtained during the 2007-2008 ArcticNet scientific cruise #0704. The data were collected from August 5 to 16, 2007, aboard the CCGS Amundsen. There were 20 casts, associated to 17 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
2011 Multibeam Sonar Data collected from the CCGS Amundsen

Ocean Mapping Group acoustic data generated from the 2011 multibeam sonar survey on the 2011 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
Seasonal and Late Holocene changes in export productivity as recorded in sediment traps and seafloor sediment collected in the Nares Strait

Historically, pack ice advected southward from the Arctic Ocean became congested in the narrow passages (e.g., Smith Sound) of the Nares Strait where it formed an ice arch. This ice arch sharply defines the northern boundary of the North Water polynya, which is the most biologically productive region of the Arctic. However, since the 1990s, the Nares Strait ice arch has become less stable and collapses earlier in the season compared to previous decades, resulting in increased variability in the seasonal duration, extent, and spatial configuration of the North Water polynya. This has significant implications for the future of this important ecosystem. This project aims to investigate biogenic matter export fluxes, including phytoplankton cells, pigments, microfossils, sedaDNA, particulate organic matter, and the geochemical signature of bulk organic matter, through the analysis of sediment trap samples and recent seafloor sediment collected in the Nares Strait and adjacent ecosystems. Sediment traps were deployed in 2023 for a one-year sampling cycle onboard the CCGS Amundsen on each side of Smith Sound and at the entrance to the Lincoln Sea and will be recovered in August 2024. Recent sediment was collected between 2019 and 2023 onboard the CCGS Amundsen, using a box corer, and the upper 5 cm of the cores will be studied.

Organization: Amundsen Science
Dinoflagellate cysts from Hudson Bay sediment, 2005

Sediment cores were collected onboard the CCGS Amundsen during ArcticNet cruise 0502 (2005) using a box corer, penetrating the seafloor to a maximum of 50 cm. Samples were stored in a freezer (- 20 °C) onboard the Amundsen until the end of the cruise, then shipped to the Freshwater Institute (FWI), where they were maintained in storage at - 20 °C. Subsamples were processed at the University of Victoria Marine Micropaleontology Laboratory in October-November 2010. A gentle version of the standard palynological protocol was applied to oven-dried samples of known volume. Steps are as follows: (1) add 10 % hydrochloric acid in room temperature; (2) sieve with distilled water through a 120 micrometre and a 15 micrometre nitex mesh, retaining the fraction in between; (3) add 48% hydrofluoric acid in room temperature for 2-4 days followed by 20 minutes in 10 % hydrochloric acid; (4)  sieve through precise 15 micrometre mesh with gentle sonication for 10-60 seconds. The final residue of samples was placed in sealed storage vials and stored in + 4 °C. Aliquots of residue were mounted in glycerine jelly on microscopic slides with cover slips. Dinoflagellate cysts are studied primarily with Zeiss Standard 20 microscope under bright-field oil-immersion and 500X and 1000X magnifications. At least 300 dinoflagellate cysts species and cyst types will be identified on each slide together with pollen, freshwater algae and other palynomorphs.

Organization: Amundsen Science
2018 ROV video survey at NE Saglek Bank (Northern Labrador) aboard CCGS Amundsen (dive 65)

A remotely operated vehicle (ROV) video survey was conducted at the NE Saglek Bank location, at a depth of ~1000 m in July 2018. The main objectives of this dive were to survey epifauna at 1000 m off of the bank and to collect corals, sponges, and other large epifauna from this depth zone. This dive was aborted due to twisting of cable wire and tension which caused video to fail repeatedly. Dive ended at 982 m.

Organization: Amundsen Science
Arctic SOLAS 2007 DMS data

DMSP and DMS water concentrations were determine at fixed depths and at selected stations (ArcticNet stations) along a transect beginning in the North Water Polynya, going through the Lancaster Sound and the Northwest Passage, and terminating in the Beaufort Sea. During transit time, near surface DMS measurements were conducted every 2 hours from the pumping system of the CCGS Amundsen. In all cases, DMSP and DMS measurements were done following the methods of Kiene and Slezak 2006 (Limnol. Oceanogr.: Methods 4: 80-95). At selected stations, DMSP and DMS microbial cycling was determined during onboard incubations following the 35S-DMSP protocol (Merzouk et al. 2006, Deep Sea Res. 53:2370-2383).

Organization: Amundsen Science
ArcticNet 0602a - Labrador CTD data

The CTD data was obtained during leg #0602 of the 2006 ArcticNet scientific cruise. The data were collected from August 22 to 31, 2006, aboard the CCGS Amundsen. There were 9 casts, associated to 6 oceanographic stations, in the Labrador 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 transmissiometer), 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
Long-term oceanic observatories moorings data in the Beaufort Sea during ArcticNet study 2004-2010, reprocessed.

Thirty-six moorings were deployed in the Beaufort Sea between 2004 and 2010. Some of the moorings were deployed for one year only and others were maintained (recovered and redeployed) over several years. A total of 12 moorings were lost (1 in 2004, 2 in 2006, 1 in 2007, 2 in 2008, and 6 in 2010). Mooring sites included the Mackenzie Shelf (North-Western to North-Eastern), Mackenzie Shelf slope, Kugmallit Valley, Canada Basin, Mackenzie Canyon, Amundsen Gulf (West to East), and outer Franklin Bay area. Bottom depth at deployment sites varied between 200 and 545 m. Mooring lines were equipped with various oceanographic instruments attached at different depths from 12 m to a maximum of 500 m below the surface. Moored instruments included ALEC conductivity-temperature-turbidity- chlorophyll-PAR sensors, SeaBird SB 26 and SB37 conductivity-temperature sensors, RMC4, RMC7 and RCM11 current meters, Nortek current profilers, McLane moored profilers and NIPR and Technicap sediment traps. The datasets available were quality controlled, and have been used in several publications listed in the document accompanying the data. Variables available include water temperature, conductivity (salinity), density, PAR, Chla, turbidity, oxygen and current velocity (speed and direction). Sediment trap collections were used to estimate downward fluxes of particles, and datasets are described in Metadata CCIN 10476 (Vertical particle flux data in the Beaufort Sea: 2002-2010).
This dataset is a reprocessed version of the previous one. The processing chain used is built upon open-source Integrated Marine Observatory System (IMOS) toolbox developed for Matlab© by the Australian Ocean Data Network (AODN; Galibert, 2016).

Organization: Amundsen Science
2015 ROV video surveys at Inner Frobisher Bay, Nunavut, aboard CCGS Amundsen

A video-survey using a Super Mohawk remotely operated vehicle (ROV) was conducted in October 2015 at Inner Frobisher Bay, Nunavut. The benthic environment was video-recorded and opportunistically photographed using a high-definition camera (1Cam Alpha, Sub C Imaging, 24.1 megapixels), at a depth of ~59-139 m along a transect line 1.2 km long.

Organization: Amundsen Science
C-band scatterometer experiment during the ArcticNet 2009 Expedition

General description: A C-band polarimetric scatterometer was used to collect the backscattering signatures of new ice, first year ice, and multiyear ice in as many forms as possible during the fall freeze-up and winter period in Southern Beaufort Sea and Amundsen Gulf. This instrument is mounted on the port side of the ship (CCGS Amundsen) and the backscattering signatures were collected in conjunction with geophysical sampling of the region that was scanned in an attempt to provide the physical reasons for the electromagnetic interactions. This variable will be used in modeling studies and in coordinating in situ measurements with satellite data.
Methology: The scatterometer measured the backscatter from the surface of interest. Incidence angles ranged from 20 to 60 degrees in 5 degree steps, with a swath of 60 degrees in the azimuth. Several scans were collected for statistical purposes (generally 5). Either during the scans, or immediately afterwards, geophysical sampling was performed in and around the region of the scan in order to gather ground truth data. Geophysical data are summarized in three metadata forms: CCIN Reference No 10108, 10097 and 1555.
Data type: The dataset contains unprocessed and processed polarimetric data as a function of incidence angle.

Organization: Amundsen Science
Mesozooplankton abundance, distribution and composition in the Southeastern Beaufort Sea: ArcticNet 2005-2016

Two samplers fitted with 200 µm to 500 µm mesh nets were used for zooplankton collection on the 2005 to 2011 and 2014 to 2016 ArcticNet's oceanographic missions onboard the NGCC Amundsen. One was a metallic structure with 4 nets of 1 square meter opening each (2x2 multiple net sampler) for water column integrated sampling. For the years 2014 to 2016, one of the nets was replaced by a LOKI (Lightframe On-sight Keyspecies Investigation) imaging system. The other sampler was a 0.5 square meter opening multinet Hydrobios for stratified sampling into nine layers (selected stations only). Samplers were hauled vertically from 10 m above the sea bottom to the surface. Filtered volume was estimated by flowmeters mounted at the mouth of each net. The Hydrobios has an integrated flowmeter providing filtered volumes for each of its nine nets. Samples were preserved in a 10% buffered formalin seawater solution. Zooplankton samples were sieved through 1000 µm and 200 µm sieves for analysis. The two size fractions were separately resuspended in water and for each of them, all the organisms in a known aliquot containing approximately 300 copepods were counted and identified to the lowest possible taxonomical level, as well as developmental stages in the case of copepods. The data set will list the taxa and stage at the sampling stations, their individual counts, seawater volume sampled and depth, thus permitting the determination of species and developmental stages integrated abundances (ind.m-2) or abundances per unit volume (ind.m-3).

Organization: Amundsen Science
Mesozooplankton data in Hudson Bay: ArcticNet 2005-2018

Two samplers fitted with 200 µm to 500 µm mesh nets were used for zooplankton collection on the 2005, 2007, 2010, 2017 and 2018 ArcticNet's oceanographic missions onboard the NGCC Amundsen. One was a metallic structure with 4 nets of 1 m2 mouth aperture each (2x2 multiple net sampler) for water column integrated sampling. The other sampler was a 0.5 m2 mouth aperture multinet Hydrobios for stratified sampling into nine layers (selected stations only). In 2012, a 1 square meter opening with a 200 µm mesh net was used on a mission onboard the NGCC Pierre Radisson. Samplers were hauled vertically from 10 m above the sea bottom to the surface. Filtered volume was estimated by flowmeters mounted at the mouth of each net. The Hydrobios has an integrated flowmeter providing filtered volumes for each of its nine nets. Samples were preserved in a 10% buffered formalin seawater solution. Zooplankton samples were sieved through 1000 µm and 200 µm sieves for analysis. The two size fractions were separately resuspended in water and for each of them, all the organisms in a known aliquot containing approximately 300 copepods were counted and identified to the lowest possible taxonomical level, as well as developmental stages in the case of copepods. The data set will list the taxa and stage at the sampling stations, their individual counts, seawater volume sampled and depth, thus permitting the determination of species and developmental stages integrated abundances (ind.m-2) or abundances per unit volume (ind.m-3).

Organization: Amundsen Science
2016 ROV video survey (Dive 52) in a deep-water environment at North East Saglek Bank (Labrador, Canada) aboard CCGS Amundsen

A video-survey (Dive 52) using a Super Mohawk remotely operated vehicle (ROV) was conducted in July 2016 at Saglek Bank (Labrador, Canada). 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, surveying depths ranging between 363-473 m. At this site, a video transect was prioritized over sampling, but 1 coral sample and 2 sponges were collected. At this location, three box-cores were deployed at two nearby sites, from which only a small sample was retained. Sea water was collected at several depth intervals from surface to near-bottom to determine calcium carbonate saturation.

Organization: Amundsen Science
Thyasirid bivalve collection from around Baffin Island, Nunavut

Thyasirid bivalves were collected by sieving sediments collected using box cores aboard the Amundsen, from 2015 to 2017, around Baffin Island and at Saglek Bank. Specimens were preserved in either ethanol (for DNA extraction), in glutaraldehyde (for transmission electron microscopy) or frozen (for stable isotope analysis). Symbiont presence was assessed using transmission electron microscopy, and bacterial symbiont identification performed using 16S rRNA sequencing.

Organization: Amundsen Science
CASES 0303-Beaufort Sea CTD data

The CTD data was obtained during LEG 01 of the 2003 CASES scientific cruise #0303. This Leg was carried out from September 8th 2003 to October 15th 2003 aboard the CCGS Amundsen. There were 37 CTD casts in Leg 1. Thirty-six casts, associated to 16 oceanographic stations, are located in the Beaufort Sea research area. The following parameters were measured: temperature, conductivity and pressure (with a Sea-Bird 911 probe), oxygen (Sea-Bird 43), fluorescence (Seapoint fluorometer), 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 Ocean Canada.

Organization: Amundsen Science
Ship-Based Meteorological Data, 2007-2008 CFL IPY Project

As part of this project, 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)

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

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

CTD data are obtained during the annual CCGS Amundsen scientific expeditions in the Canadian Arctic regions.
A large number of CTD rosette casts are performed every year. The rosette has twenty four sampling water bottles and several instruments attached to its frame to collect water samples and records physical and chemical data (temperature, conductivity, pressure, fluorescence, light transmission, nitrate, photosynthesis) with sensors. The water samples are distributed to the scientific teams for in-situ analysis. In-situ data belong to and are under the responsibility of the leading scientists while physical and chemical data from the sensors are part of the Amundsen core data collection. 
Data typically measured each year and provided in this archive are as follows: 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 are applied to the data which are available under these formats: .int (one cast by file), .odv, .kml, .btl and .odf (on demand).
Since 2024, data profiles from a second Rosette located in the ship moon pool have been added to the contents of this dataset archives. Specifically, that Rosette does have special bottle for water contaminants sampling. Data from the second Rosette are flagged as TM (Trace Metal) in the related archive folder and those from the usual Rosette flagged as "classic".

Organization: Amundsen Science
Multibeam Sonar Data from the CCGS Amundsen for the Greenland Exclusive Economic zone

Datasets were collected and processed by the Ocean Mapping Group, University of New Brunswick. Accoustic data was generated from the multibeam Kongsberg Simrad EM302 multibeam sonar system onboard the CCGS Amundsen during ArcticNet Cruises. This bathymetric data subset covers the Greenland Economic Exclusive Zone (EEZ), i.e. outside of the 12 nm territorial sea extent and within the 200 nm EZZ, from 2005 to 2011 and 2013. The datasets consist of high-resolution bathymetry and acoustic backscatter imagery collected 24 hours a day, whenever the ship was in transit or had dedicated survey time. Standard collection settings used dual-ping, FM pulse, auto depth mode, angular coverage of +/- 60 degrees and high-density equidistant beamforming. SIS was used to collect the data, while near realtime cleaning of data outliers was done using the Ocean Mapping Group's Swathed toolkit after conversion to OMG binary format. IMU data was parsed by the SIS software from a POSMv 320 v.4. RTG GPS data from the CNav GPS was used to correct and improve the position output from the POSMv. Soundspeed information was either from CTD Rosette casts, MVP300 data or simulated from the World Ocean Atlas 2001 database. Data were gridded at a resolution of 10 metres. Grid files available are in ESRI grid format (.flt and .hdr files zipped for each mapsheet for the data from 2005 to 2011, and .asc files for the data of 2013). Futher information on data processing and on the Ocean Mapping Group activities are online at http://www.omg.unb.ca/Projects/Arctic/

Organization: Amundsen Science
Investigating the Sources, Abundance and Types of Microplastics in the Arctic, 2017

Microplastics pollution has been found across the globe, but with limited information from the polar regions. Although there is evidence of microplastics in the Arctic and Antarctic, little is understood about the sources, fate and extent of contamination. We collected samples and will quantify the amount and identify the types of microplastics in snow, ice, water, sediments and zooplankton sampled from the CCGS Amundsen in and around the Hudson Bay and/or the central and eastern Canadian Archipelago. In addition, we will answer questions about sources and fate using two types of information. We will examine patterns of microplastics contamination and compare them with land-use patterns and water and air circulation. Based on previous studies, and our preliminary findings, we believe that microplastics will be present in Arctic samples, but a detailed study will help us better understand how ubiquitous microplastics are, from where they are derived, and how they are preserved or degraded. Microplastics in the Arctic raise concerns about impacts to wildlife and local communities that rely on food from the sea. Results from this study will inform future experiments that answer questions related to such impacts.

Organization: Amundsen Science
Sinking export of organic material in the High Arctic in fall 2006

Sinking export of organic material was investigated during the fall of 2006, using free-drifting, short-term particle interceptor traps . The particle interceptor traps were deployed at 9 stations along a transect spanning between the North Water polynya (Baffin Bay) and the Beaufort Sea. The traps were deployed from the CCGS Amundsen at three depths below the euphotic zone (50, 100 and 150 m) for a period between 8 and 29 hours. The analyses on the sinking material included total chlorophyll a and phaopigments (fluorometric determination), particulate  organic carbon and nitrogen, biogenic silica, cell composition and abundance and fecal pellet abundance.

Organization: Amundsen Science
ArcticNet 1103b - Baffin Bay and Northwest Passage CTD data

The CTD data was obtained during the 2011 ArcticNet scientific cruise #1103b.

The data were collected from October 6 to 22, 2011, aboard the CCGS Amundsen. There were 46 casts associated to 30 stations, located in Baffin Bay and the Northwest Passage.

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