The data included in this dataset were collected in the Sermilik Fjord, located in East Greenland in the Ammassalik district close to the town of Tasiilaq. Data collection was conducted during the summer of 2008 in separate legs. During the first leg, which took place during July 2008, two moorings were deployed; one at a depth of 185 meters and one at a depth of 25 meters. The deeper mooring was equipped with one RBR DR-1050 depth recorder, 10 Onset UBTI-001 Temperature Loggers, and one SBE-37(P) Microcat. The shallow mooring was equipped with one RBR DR-1050 depth recorder and one SBE-37(P) Microcat. These moorings were deployed on July 6, 2008 and were recovered on September 1, 2008. The second leg of the data collection, which took place in September 2008, also deployed two moorings at the same locations as the July moorings. Each of these moorings was equipped with one SBE-37 (P) Microcat. These two moorings were deployed on Sept 3, 2008. The shallow mooring was recovered on August 20, 2009 and the deep mooring was recovered on November 16, 2011. The purpose of this data collection was part of an exploratory project whose long term goals were to: 1) quantify the (liquid) fresh water flux out of Sermilik Fjord, and 2) determine what water masses flow into the fjord. In particular, if the warm, Atlantic water (Irminger Water) which is found off the slope, is able to penetrate into the fjord.

Basic hydrographic data was collected in the Ilulissat Ice Fjord and adjacent Disko Bay during the summer of 2007. In Disko Bay, data was collected using a CTD lowered over the side of a boat (the Clane). The casts reached depths of about 300 m. very close to the bottom of the bay. In the Ice Fjord, casts were taken from a CTD lowered from a helicopter, and reached down to a depth of about 50 m. Additionally, airborne expendable CTD were taken from a helicopter over the ice fjord.

Data has been processed by NODC to the NODC standard Bathythermograph (XBT) (C116) format. The C116/C118 format contains temperature-depth profile data obtained using expendable bathythermograph (XBT) instruments. Cruise information, position, date and time were reported for each observation. The data record was comprised of pairs of temperature-depth values. Unlike the MBT Data File, in which temperature values were recorded at uniform 5 m intervals, the XBT data files contained temperature values at non-uniform depths. These depths were recorded at the minimum number of points ("inflection points") required to accurately define the temperature curve. Standard XBTs can obtain profiles to depths of either 450 or 760 m. With special instruments, measurements can be obtained to 1830 m. Prior to July 1994, XBT data were routinely processed to one of these standard types. XBT data are now processed and loaded directly in to the NODC Ocean Profile Data Base (OPDB). Historic data from these two data types were loaded into the OPDB.

This dataset contains mooring data collected during the FjordEco project, which focused on Andvord Bay, a glacial fjord on the West Antarctic Peninsula. Two moorings were deployed: Mooring A, located in inner Andvord Bay, was operative from 11/29/2015 to 4/14/2016 and 4/17/2015 to 3/5/2017. Mooring B, located in the Gerlache Strait outside Andvord Bay, was operative from 11/27/2015 to 4/4/2016. Current profile time series spanning most of the water column are available from both moorings. Temperature records from point sensors are available below 184 m (Mooring B), below 199 m (Mooring A, first deployment), and below 292 m (Mooring A, second deployment). Salinity and conductivity are available from point sensors on Mooring B. Pressure is available from 2 sensors on Mooring B and 1 sensor on Mooring A. Data are in netCDF format. A more thorough description is included in the supplementary document.

This dataset consists of helium and tritium data submitted by Woods Hole Oceanographic Institution (WHOI) as part of the Transient Tracers in the Ocean Funding Organization (TTO) North Atlantic Survey and NATS (North Atlantic Tracer Section) programs. The TTO data was collected during 7 legs of the R/V Knorr from April to October 1981. The NATS data was collected during legs 1-3 of the Atlantis from June to September 1981. The TTO program has reference number L00944 and the NATS program has a reference number of L00945. These programs were supported by NSF grants OCE79-21378 and OCE81-17998.

Currents and CTD data were collected using moored current meter casts in Boca de Quadra and Smeaton Bay, Alaska, from August 5, 1980 to August 1, 1981. Data were submitted by University Of Alaska - Fairbanks; Institute of Marine Science as part of the BORAX project. Data were processed by NODC to the NODC standard Current Meter Data (F015) format. The F015 format is used for time series measurements of ocean currents. These data are obtained from current meter moorings and represent Eulerian method of current measurement, i.e., the meters are deployed at a fixed point and measure flow past a sensor. Position, bottom depth, sensor depth, and meter characteristics are reported for each station. The data record comprises values of east-west (u) and north-south (v) current vector components at specified date and time. Current direction is defined as the direction toward which the water is flowing with positive directions east and north and negative directions west and south. Data values may be subject to averaging or filtering and are typically reported at 10-15 minute time intervals. Water temperature, pressure, and conductivity or salinity may also be reported. A text record is available for optional comments.

Temperature profile, nutrients, and other data were collected using plankton net, bottle, and CTD casts from the POLARSTERN in the Southern Oceans. Data were collected from 02 October 1992 to 25 November 1992. Data were collected and submitted by Netherlands Institute for Sea Research with support from the US JGOFS Antarctic Environments Southern Ocean Process Study (JGOFS/AESOPS) project.