This dataset contains seabird survey and associated environmental conditions data collected in the Chukchi Sea during the 9 August - 3 September 2015 Arctic Marine Biodiversity Observing Network (AMBON) research cruise. Seabirds were surveyed using line transect methods. Seabird observations were recorded directly into a laptop computer using software which logged the geographic coordinates of each sighting. Incidental sightings of marine mammal were also recorded. Supplementary environmental data are included for the beginning of each survey period. The dataset is two comma-separated values (csv) files. The file named dlog_2015_dwc_core.csv contains the count of observed marine birds and mammals by species, their behavior, and the environmental conditions recorded during the surveys for the 2015 research cruise. The file named taxon_codes_2015.csv is an associated taxon code list of the observed species. This dataset was transformed from the native format into a table structure using Darwin Core term names as column names.

This dataset contains fish haul and specimen information collected during the Arctic Marine Biodiversity Observing Network (AMBON) research cruise in 2017. During the cruise, demersal fishes were collected with a plump-staff beam trawl, identified to species, and their length was measured while onboard. A subset of specimens was frozen or preserved in ethanol for laboratory analyses to contribute to this and other datasets. Juvenile and pelagic fishes were also captured with an Isaac-Kidds midwater trawl. The final dataset consists of 3 comma separated values files (csv), one lookup table as a comma separated values file (csv), and two ISO 19110/19115 metadata records in xml form. The data files are presented in a table structure using Darwin Core OBIS-GBIF form (https://obis.org/manual/dataformat/#emof), using Darwin Core term names as column names and in keeping with that metadata standard (https://dwc.tdwg.org/). They are: AMBON2017_fish_Event_DWC.csv, AMBON2017_fish_MoF_DWC.csv, AMBON2017_fish_Occurrence_DWC.csv. This dataset also contains the file AMBON2017_Fish_data_HaulInfo_lookupTable.csv, describing details of sampling efforts such as stations and date and comments/notes of sampling efforts.

This dataset contains seabird survey and associated environmental conditions data collected in the Chukchi Sea during the 5 August - 25 August 2017 Arctic Marine Biodiversity Observing Network (AMBON) research cruises. Seabirds were surveyed using line transect methods. Seabird observations were recorded directly into a laptop computer using software which logged the geographic coordinates of each sighting. Incidental sightings of marine mammal were also recorded. Supplementary environmental data are included for the beginning of each survey period. The dataset is two comma-separated values (csv) files. The file named dlog_2017_dwc_core.csv contains the count of observed marine birds and mammals by species, their behavior, and the environmental conditions recorded during the surveys for the 2017 research cruise. The file named taxon_codes_2017.csv is an associated taxon code list of the observed species. This dataset was transformed from the native format into a table structure using Darwin Core term names as column names.

This dataset contains zooplankton species biomass and abundance data collected in the Chukchi Sea during the 11 August through 3 September, 2015. Arctic Marine Biodiversity Observing Network (AMBON) research cruise on the vessel Norseman II. This dataset contains three comma separate values (csv) files. The data were collected from zooplankton samples caught with traditional 150µm plankton nets and taxonomically identified. Each data file include the location, date, time, depth, and identification of zooplankton taxa collected during the 2015 AMBON cruise. The data in the file named AMBON2015_Zooplankton_Abundance_150_DC.csv and AMBON2015_505_Zooplankton_Abundance_DWC.csv consists of abundance per taxon of zooplankton. The data in the file named AMBON2015_Zooplankton_Biomass_150_DC.csv and AMBON2015_505_Zooplankton_Biomass_DWC.csv consists of biomass per taxon of zooplankton. These data files are presented in a table structure using Darwin Core term names as column names. This dataset also contains the file AMBON_station_masterlist.csv, describing stations sampled during AMBON cruises.

This dataset contains marine mammal observation data conducted during shipboard transects in the Chukchi Sea during the 5 August - 25 August 2017 Arctic Marine Biodiversity Observing Network (AMBON) research cruise. The dataset is two comma-separated values (csv) files exported from the marine bird and mammal observation software WinCruz from the entire survey. One data file contains the dates, times, latitude, longitude, species and best-high-low estimates of numbers for cetacean (whales) and pinniped (seals, seal lions, and walrus) sightings. The second data file contains the track of the ship (as geographic coordinates) and the Beaufort sea state at two minute intervals as a measurement of effort. This dataset was transformed from the native format into a table structure using Darwin Core Archive (DwC-A, occurrence core) term names as column names.

This dataset contains zooplankton species distribution and abundance data collected in the Chukchi Sea during the August 2017 Arctic Marine Biodiversity Observing Network (AMBON) research cruise. The dataset is a comma separate values file (csv). The data include the location, date, time, depth, abundance and biomass of zooplankton collected during the 2017 AMBON cruise. Zooplankton were caught with traditional 150µm plankton nets and taxonomically identified. Each data file include the location, date, time, depth, and identification of zooplankton taxa collected during the 2017 AMBON cruise. The data files are presented in a table structure using Darwin Core OBIS-GBIF forms, using Darwin Core term names as column names and in keeping with that metadata standard. They are: AMBON2017_zooplanklton_Event_DWC.csv, AMBON2017_zooplankton_MoF_DWC.csv, AMBON2017_zooplankton_Occurrence_DWC.csv. This dataset also contains the file AMBON_station_masterlist.csv, describing stations sampled during AMBON cruises.

This dataset contains marine mammal observation data conducted during shipboard transects in the Chukchi Sea during the 9 August - 3 September 2015 Arctic Marine Biodiversity Observing Network (AMBON) research cruise. The dataset is three comma-separated values (csv) files exported from the marine bird and mammal observation software WinCruz from the entire survey. Two data files contain the dates, times, latitude, longitude, species and best-high-low estimates of numbers for each cetacean (whales) and pinniped (seals, seal lions, and walrus) sightings. A third data file contains the track of the ship (as geographic coordinates) and the Beaufort sea state at two minute intervals as a measurement of effort. This dataset was transformed from the native format into a table structure using Darwin Core Archive (DwC-A, occurrence core) term names as column names.

This dataset contains water temperature, conductivity, and others taken by CTD and Niskin bottles in the Chukchi Sea during the 10 August - 3 September 2015 Arctic Marine Biodiversity Observing Network (AMBON) research cruise. The data provides information on important Arctic Chukchi Sea ecosystem parameters, including temperature, salinity, pressure, and fluorescence as an index of phytoplankton biomass. In aggregate these variables are basic descriptors of the water masses entering the Chukchi Sea from the Pacific through Bering Strait. The compiled directory consists of three files. - AMBON2015_CTDprofiles.ascii (also in csv and netcdf) - AMBON2015.hdr - AMBON2015_ctdBottleData_L2_v1.csv The first file is an ASCII file consisting of Seabird SBE55 CTD measurements from the depths at which the Niskin bottles were tripped; the file is intended to complement the file named 'AMBON 2015 bottle file new- Nutrients_chlorophyll bottle file.csv' in the Arctic Marine Biodiversity Observing Network (AMBON): Water column and benthic processes project (Cooper and Grebmeier). The second file is a ASCII file consisting of Seabird SBE55 Conductivity, Temperature, Depth (CTD) header information (named AMBON2015.hdr); the file accompanies the main CTD data file. The dataset describes each CTD cast number, location, bottom depth and other ancillary information. The third file is a ASCII file consisting of Seabird SBE55 Conductivity, Temperature, Depth (CTD) downcast data (AMBON2015_ctdBottleData_L2_v1.csv). Data were post calibrated and adjusted to bottled samples. Data are in ASCII, CSV, and NetCDF.

This dataset contains the edited ship's Acoustic Doppler Current Profiler (ADCP) underway data (horizontal and vertical water velocity components and SST) from the research vessel Norseman II collected in the Chukchi Sea during the 10 August - 4 September 2015 Arctic Marine Biodiversity Observing Network (AMBON) research cruise. The dataset includes bottom depth, water temperature, and water velocity averaged at 30-minute intervals along the ship's route. The data provides information on important Arctic Chukchi Sea ecosystem parameters related to the water masses entering the Chukchi Sea from the Pacific through Bering Strait. The data are in ASCII dat file and were transformed from the native format to netCDF as per NCEI guidelines.

Bering Strait Mooring Cruise Underway Data 2022 This is an archive of underway data from the Bering Strait mooring cruise on the research vessel Norseman II, from Nome to Nome, 8th-19th September 2022. The cruise collected 3 types of underway data: meteorological (including wind velocity, air temperature and pressure and relative humidity); thermosalinograph (temperature and conductivity); and vessel-mounted ADCP (with bottom tracking). For full parameter list, see data file headers. To avoid sediment clogging of the thermosalinograph, that system was turned off while the ship was in Port Clarence during a large storm (~16-18 September 2022).