Temperature, salinity, and sigma-t profiles from CTD and bottle casts from the R/V ALPHA HELIX. Data were collected in the Gulf of Alaska by the University of Alaska; Institute of Marine Science (UAK/IMS) from 05 May 1989 to 28 May 1989. Data were collected in support of the Exxon Oil Spill Monitoring Program funded by the State of Alaska and the Gulf of Alaska Recirculation Project funded by the National Science Foundation, Grant #OCE8608125. Data were processed by NODC to the NODC standard F022 High-Resolution CTD/STD Output Format. The F022 format contains high-resolution data collected using CTD (conductivity-temperature-depth) and STD (salinity-temperature-depth) instruments. As they are lowered and raised in the oceans, these electronic devices provide nearly continuous profiles of temperature, salinity, and other parameters. Data values may be subject to averaging or filtering or obtained by interpolation and may be reported at depth intervals as fine as 1m. Cruise and instrument information, position, date, time and sampling interval are reported for each station. Environmental data at the time of the cast (meteorological and sea surface conditions) may also be reported. The data record comprises values of temperature, salinity or conductivity, density (computed sigma-t), and possibly dissolved oxygen or transmissivity at specified depth or pressure levels. Data may be reported at either equally or unequally spaced depth or pressure intervals. A text record is available for comments.

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The Conductivity, Temperature and Depth (CTD) data were collected from Gulf of Alaska using Ship ALPHA HELIX during three cruises HX14-HX145. The data was collected over a period spanning from September 11, 1990 to December 16, 1990. Data on a tape containing 148 station observations was submitted by Dr. Chirk Chu, Institute of Marine Science, University of Alaska, Fairbanks, AK. Data has been processed and is available in F022-CTD-Hi Resolution file format of NODC.

This is the CTD data from one of sixteen cruises in lower Cook Inlet. Four CTDs were used, but most also included fluorescence, transmissometer, and oxygen measurements. There were 3 to 7 transect lines occupied. Profiles were from the surface to the extent of a 200 m line. A few profiles were conducted on a slightly longer line. The dataset was formatted for use with Ocean Data View software.

CTD data were collected from the ALPHA HELIX from the Gulf of Alaska. Data were collected by the University of Alaska - Fairbanks; Institute of Marine Science (UAK/IMS) in support of Gulf of Alaska-1 (GAK-1) from 30 May 1995 to 25 June 1995. Parameters include profiles of temperature, salinity, fluorescence, and oxygen.

The 2004 Gulf of Alaska Seamount Expedition will use the deep submergence vehicle (DSV) Alvin to explore five large seamounts. Giacomini, Pratt, Welker, Denson, and Dickens seamounts stretch over a 400-nautical-mile section of the northeast Pacific, called the Kodiak-Bowie Seamount Chain. Operating from a base aboard R/V Atlantis, scientists will dive to depths of up to 3,500 m to conduct a series of biological and geological investigations on these ancient volcanoes. All four of the Principal Investigators aboard this cruise were part of the Gulf of Alaska Seamount Expedition in 2002, as were other scientific researchers, many of the ship's crew, the sub's crew, and the cruise coordinator. The research foci of this mission include: - Geologic dating and characterization of the seamounts - Deep-sea coral distribution and genetics - Community ecology of deep-sea corals - Investigation of the microbial, invertebrate, and fish communities associated with the corals

The Alaska Department of Fish and Game conducts annual shellfish surveys that include Red King Crab, Tanner Crab, and Shrimp which is used to manage the personal commercial fisheries. Lack of oceanographic data in Northern Southeast Alaska spurred interest in helping create an oceanographic database by collecting CTD in our current survey locations. The CTD data include conductivity(S/m), depth(m), pressure (db), oxygen saturation (ml/l), salinity (PSU), and Temperature (Celsius).

The Conductivity, Temperature and Depth (CTD) and other data were collected in Coastal Waters of S. Alaska. Data was collected in five cruises from Ship ALPHA HELIX. The data was collected over a period spanning from July 24, 1991 and November 14, 1991. Data was submitted in a tape from cruises L09-L011 and HX159-160 by Dr. Chirk Chu, Institute of Marine Science, University of Alaska, Fairbanks, AK. This dataset contains high-resolution data collected using CTD (conductivity-temperature-depth) instruments. As they are lowered and raised in the oceans, these electronic devices provide nearly continuous profiles of temperature, salinity and other parameters. Data values may be subject to averaging or filtering or obtained by interpolation and may be reported at depth intervals as fine as 1 m. Cruise and instrument information, position, date, time and sampling interval are reported for each station. Environmental data at the time of the cast (meteorological and sea surface conditions) may also be reported. The data record comprises values of temperature, salinity or conductivity, density (computed sigma-t) and possibly dissolved oxygen or transmissivity at specified depth or pressure levels. Data may be reported at either equally or unequally spaced depth or pressure intervals. Data has been processed and is available in F022-CTD-Hi Resolution file format of NODC.

The University of Alaska is responsible for this data which was collected aboard the R/V Alpha Helix cruise HX65 between 10/29/84 - 11/03/84 by Dr. Royer of the Institute of Marine Science, and aboard the R/V Redoubt cruise RT41 between 10/14/83 - 10/24/83 by Dr. Burrell of the Institute of Marine Science. There were a total of 125 stations in the Gulf of Alaska area and 65 stations in the Boca de Quadra area. Data has been processed by NODC to the NODC standard High-Resolution CTD/STD (F022) format. The F022 format contains high-resolution data collected using CTD (conductivity-temperature-depth) and STD (salinity-temperature-depth) instruments. As they are lowered and raised in the oceans, these electronic devices provide nearly continuous profiles of temperature, salinity, and other parameters. Data values may be subject to averaging or filtering or obtained by interpolation and may be reported at depth intervals as fine as 1m. Cruise and instrument information, position, date, time and sampling interval are reported for each station. Environmental data at the time of the cast (meteorological and sea surface conditions) may also be reported. The data record comprises values of temperature, salinity or conductivity, density (computed sigma-t), and possibly dissolved oxygen or transmissivity at specified depth or pressure levels. Data may be reported at either equally or unequally spaced depth or pressure intervals. A text record is available for comments.

Temperature profile data were collected using moored buoy in the Gulf of Alaska from June 10, 1989 to October 25, 1989. Data were submitted by Dr. Chirk Chu from the University of Alaska, Fairbanks; Institute of Marine Science. The data was collected as part of a project, Trans-Alaska Pipeline System.