This dataset includes discrete profile measurements of chlorofluorocarbons (CFCs), water temperature, salinity and sulfur hexafluoride (SF6) collected from R/V Maria S. Merian cruise MSM09_1 (EXPOCODE 06M220080723) in the North Atlantic Ocean from 2008-07-23 to 2008-08-18.

This dataset contains water temperature, salinity, and others collected by CTD from LE COMMANDANT CHARCOT in Northwestern Passages, Northwest Atlantic Ocean, and North Pacific Ocean. Due to global warming, the Arctic is experiencing rising temperatures resulting in the thawing of permafrost soil and an increase of glacial mass loss. These processes are expected to increase the flux of inorganic and organic nutrients into coastal ecosystems, reduce the salinity of surface waters, and change light conditions of the water column. Together, these environmental changes can affect the composition and distribution of the plankton community, likely favoring harmful algal species and associated phycotoxins. These harmful algae can impact public health and the economy of areas dependent on arctic resources. The aim of this project is to establish a baseline of the phytoplankton community composition in two understudied Arctic systems, heavily impacted by global warming: fjord systems with melting glaciers and coastal ecosystems impacted by permafrost thawing. To that end, oceanographic parameters (e.g., dissolved nutrients and organic carbon) and vitamins that shape the phytoplankton community, as well as dissolved and particulate phycotoxins, will be measured. Particulate phycotoxins will be studied both at the producer level (phytoplankton) and at the zooplankton level (phytoplankton natural predators), to address transference and conversion of phycotoxins in the first levels of the trophic web. Additionally, onboard bottle incubation experiments will be carried out to determine which nutrients (nitrogen, phosphorus, silicate, vitamins) may limit primary production and shape the phytoplankton community composition. Results obtained from this project will highlight possible plankton community shifts and their drivers and help predict future consequences of global warming in these two sensitive and changing arctic ecosystems. Data are in CSV format. This dataset is MSR/RATS cruise U2023-011 (Ponant RN035) as part of the World data center for oceanography.

This dataset includes biological, chemical, discrete sample, physical and profile data collected from JOHAN HJORT in the North Greenland Sea and Norwegian Sea from 1996-07-20 to 1996-08-05 and retrieved during cruise CARINA/58JH19960720. These data include CHLOROPHYLL A, DISSOLVED ORGANIC CARBON, DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, NITRATE, NITRITE, PHAEOPHYTIN, PHOSPHATE, Potential temperature (theta), SALINITY, SILICATE and WATER TEMPERATURE. The instruments used to collect these data include CTD and bottle. These data were collected by Francisco Rey of Institute of Marine Research - Norway (IMR) as part of the CARINA/58JH19960720 dataset. The CARINA (CARbon dioxide IN the Atlantic Ocean) data synthesis project is an international collaborative effort of the EU IP CARBOOCEAN, and U.S. partners. It has produced a merged internally consistent dataset of open ocean subsurface measurements for biogeochemical investigations, in particular, studies involving the carbon system. The original focus area was the North Atlantic Ocean, but over time the geographic extent expanded and CARINA now includes data from the entire Atlantic, the Arctic Ocean, and the Southern Ocean.

CTD, bottle, and other data were collected from the CHARLES DARWIN and other vessels in the Atlantic Ocean from 10 April 1969 to 17 August 1995. CTD data include temperature and salinity profiles. Bottle data include profiles of percent oxygen saturation, sigma-t, computed potential attenuance, and chlorophyll concentration. Data were submitted by the British Oceanographic Data Center (BODC).

This dataset includes chemical, discrete sample, physical and profile data collected from OCEANUS in the North Atlantic Ocean from 2008-05-10 to 2008-05-23 and retrieved during cruise Line W. These data include CHLOROFLUOROCARBON-11 (CFC-11), CHLOROFLUOROCARBON-113 (CFC-113), CHLOROFLUOROCARBON-12 (CFC-12), DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, Potential temperature (theta), SALINITY, SULFUR HEXAFLUORIDE (SF6) and WATER TEMPERATURE. The instruments used to collect these data include CTD and bottle. These data were collected by John M. Toole of Woods Hole Oceanographic Institution (WHOI) as part of the GLODAPv2_32OC20080510 dataset. The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.