Chemical, physical, and other data were collected from bottle and CTD casts from the KNORR and MELVILLE from 18 July 1972 to 10 June 1974. Data were collected by the Scripps Institution of Oceanography (SIO) as part of the International Decade of Ocean Exploration / Geochemical Ocean Study (IDOE/GEOSECS). Physical parameters include depth, temperature, salinity, and pressure. Chemical parameters include concentrations of oxygen, phosphate, nitrate, nitrite, and silicate. Analog data are available for this accession by contacting NODC user services.

This data file contains trace chemicals reported in a format similar to SD2. These data were collected by Scripps Institute of Oceanography (SIO) from July 12, 1972 to April 24, 1978 in the Atlantic, Pacific and Indian Oceans as part of the International Decade of Ocean Exploration / Geochemical Ocean Section Study (IDOE/GEOSECS) Program. The data parameters measured were: barium, total organic carbon, deuterium, radium-226, lead-210, polonium, tritium, helium, neon, strontium-90, and cesium-137.

This dataset includes profile discrete measurements of CTD temperature, CTD salinity, CTD oxygen, nutrients, dissolved inorganic carbon, total alkalinity other measurements obtained during the R/V Knorr cruise (EXPOCODE 316N20040922) in Davis Strait from 2004-09-22 to 2004-10-04.

This dataset includes profile discrete measurements of CTD temperature, CTD salinity, nutrients, dissolved inorganic carbon, total alkalinity other measurements obtained during the R/V Knorr cruise (EXPOCODE 316N20091006) in Davis Strait from 2009-10-06 to 2009-10-28.

This dataset includes profile discrete measurements of CTD temperature, CTD salinity, CTD oxygen, nutrients, dissolved inorganic carbon, total alkalinity other measurements obtained during the R/V Knorr cruise (EXPOCODE 316N20080901) in Davis Strait from 2008-09-01 to 2008-09-21.

This dataset includes profile discrete measurements of CTD temperature, CTD salinity, CTD oxygen, nutrients, dissolved inorganic carbon, total alkalinity other measurements obtained during the R/V Knorr cruise (EXPOCODE 316N20111002) in Davis Strait from 2011-10-02 to 2011-10-21.

This dataset includes profile discrete measurements of CTD temperature, CTD salinity, CTD oxygen, nutrients, dissolved inorganic carbon, total alkalinity other measurements obtained during the R/V Knorr cruise (EXPOCODE 316N20071003) in Davis Strait from 2007-10-03 to 2007-10-21.

The dataset consists of 100 CTD casts in the region north of Flemish Cap. Some casts cover the full water column, while others only cover the upper 1000 db. The CTD casts were obtained with a SeaBird SBE911+ system, measuring temperature (2 sensors), conductivity (2 sensors), pressure, beam transmission, oxygen (plumbed in series with the primary T/C sensor pair), chlorophyll fluorescence, and turbidity. All sensors were sampled at 24 Hz. The data were processed using the SeaBird data processing software suite, SBEDataProcessing-Win32. A low pass filter, with time constant of 0.15 s, was applied to the pressure record. To account for the transit time between the temperature and conductivity sensors, the conductivity measurements were aligned with the temperature measurements using empirically determined time delays. The primary conductivity was delayed by 0.011 s relative to pressure (this is in addition to the advance of 0.073 s which is performed by the SeaBird deckbox during data acquisition, thus resulting in a net advance of 0.062 s). The secondary conductivity was advanced by 0.050 s. The oxygen voltage was advanced by 4 s relative to pressure. A correction for conductivity cell thermal mass effects was applied to both conductivity channels using the parameters recommended by SeaBird (alpha=0.03, 1/beta=7.0). The temperatures, conductivities, and oxygen voltage were then median filtered using a 7-scan window. A loop edit step was then applied, whereby portions of the cast in which the pressure was not changing sufficiently fast (0.2 dbar/s) were removed. This was followed by computation of salinity, potential temperature, potential density, sound velocity, geopotential anomaly, and oxygen concentration. Finally, the data from the downcast were averaged into 1 dbar bins. Further details of the CTD data processing can be found in the header portion of the individual cast files. The final data files contain raw sensor values (1 dbar bin averages) plus a number of derived variables (e.g., potential temperature, salinity, sigma-theta, oxygen). A full list of the output variables is contained in the header portion of the cast files. The casts were visually examined to determine the quality of the data from the 2 separate sensor suites (primary and secondary). A header line was placed in each file indicating the preferred sensor pair (PRIMARY or SECONDARY) if one was bad or whether both were of equal quality (BOTH GOOD).

These data were collected during the cruise listed below: NBP0302 (AnSlope I - Lamont-Doherty Earth Observatory cruise ID)

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