This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, dissolved oxygen, nutrients and oxygen isotope ratio during the CCGS Louis S. St-Laurent IOS Cruise 2015-06 (EXPOCODE 18SN20150920) in the Arctic Ocean from 2015-09-20 to 2015-10-16. The Joint Ocean Ice Study (JOIS) in 2015 is an important contribution from Fisheries and Oceans Canada to international Arctic climate research programs. It is a collaboration between Fisheries and Oceans Canada researchers with colleagues in the USA from Woods Hole Oceanographic Institution (WHOI). The scientists from WHOI lead the Beaufort Gyre Exploration Project (BGEP) which maintains the Beaufort Gyre Observing System (BGOS) as part of the Arctic Observing Network (AON).

This dataset includes biological, chemical, discrete sample, physical and profile data collected from AIRCRAFT, ARCTIC IVIK, Amundsen, HENRY LARSEN, JOHN P. TULLY, LOUIS S. ST-LAURENT, PIERRE RADISSON, SIR WILFRID LAURIER and THETA in the Arctic Ocean, Baffin Bay, Beaufort Sea, Bering Sea, Coastal Waters of Southeast Alaska and British Columbia, Davis Strait, Gulf of Alaska, Gulf of St. Lawrence, Hudson Strait, Labrador Sea, North Pacific Ocean and Northwestern Passages from 1974-08-11 to 2009-10-15. These data include AMMONIUM (NH4), CHLOROPHYLL A, DISSOLVED INORGANIC CARBON (DIC), DISSOLVED ORGANIC CARBON, DISSOLVED OXYGEN, Delta Oxygen-18, HYDROSTATIC PRESSURE, NITRATE, PARTICULATE ORGANIC CARBON, PARTICULATE ORGANIC NITROGEN (PON), PHAEOPHYTIN, Potential temperature (theta), SALINITY, TOTAL ALKALINITY (TA), Total Organic Carbon (TOC), WATER TEMPERATURE, pH, phosphate, silicate and suspended solids. The instruments used to collect these data include CTD and bottle.These data were collected by Lisa A. Miller of Department of Fisheries and Oceans; Institute of Ocean Sciences; Climate Chemistry Laboratory, C. S. Wong of Fisheries and Oceans Canada; Institute of Ocean Sciences, and Karina E. Giesbrecht of University of Victoria School of Earth and Ocean Sciences as part of the IOS_Arctic_Database dataset. CDIAC associated the following cruise ID(s) with this dataset: 34 cruises and IOS Arctic Database 1974-2009

The Canada¿s Three Ocean¿s project is designed to take a snapshot of all three of the oceans surrounding Canada in 2007 and 2008. In doing this, we will evaluate the connections among the Arctic, Pacific and Atlantic Oceans, provide a baseline of biological, chemical and physical measurements of the ocean environment and leave a legacy that can be used as the basis for long term monitoring of our oceans. In 2008, following the success of the 2007 season, two Canadian Coast Guard icebreakers left their home ports on the Atlantic and Pacific coasts carrying scientists who observed the environment around them by measuring a wide range of properties, from the numbers and type of seabirds, to the plankton in the water, the nutrients in the seawater to the physical and chemical properties of seawater that tell the story of the water¿s current movement and past history. By the time they crossed paths in the Canadian Arctic Archipelago, 14000km of ocean from Victoria to Halifax through the Northwest Passage had been observed in one season. Researchers from government and universities, students at all levels from high school and up, writers, photographers, and technicians both experienced and in training participated in this project. Once home from sea they have been analysing, processing and plotting their results which together with the results from 2007 give two single season snapshots of Canada¿s surrounding oceans.

The Canada's Three Ocean's project is designed to take a snapshot of all three of the oceans surrounding Canada in 2007 and 2008. In doing this, we will evaluate the connections among the Arctic, Pacific and Atlantic Oceans, provide a baseline of biological, chemical and physical measurements of the ocean environment and leave a legacy that can be used as the basis for long term monitoring of our oceans. In 2008, following the success of the 2007 season, two Canadian Coast Guard icebreakers left their home ports on the Atlantic and Pacific coasts carrying scientists who observed the environment around them by measuring a wide range of properties, from the numbers and type of seabirds, to the plankton in the water, the nutrients in the seawater to the physical and chemical properties of seawater that tell the story of the water's current movement and past history. By the time they crossed paths in the Canadian Arctic Archipelago, 14000km of ocean from Victoria to Halifax through the Northwest Passage had been observed in one season. Researchers from government and universities, students at all levels from high school and up, writers, photographers, and technicians both experienced and in training participated in this project. Once home from sea they have been analysing, processing and plotting their results which together with the results from 2007 give two single season snapshots of Canada's surrounding oceans.