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log in [BATS HPLC pigments] - HPLC and fluorometric derived phytoplankton pigment concentrations from seawater collected at the Bermuda Atlantic Time-series Study (BATS) site from October 1988 through December 2023 (Bermuda Atlantic Time-series Study) Data presented here contain HPLC derived phytoplankton pigments and fluorometric chlorophyll-a from the BATS site for years 1988 to 2023.  Water samples are typically collected from 12 depths in the upper 250 meters of the water column, and then filtered under low vacuum through a 25mm GF/F filter. The filter is then flash frozen in liquid nitrogen and stored at -80 degrees C. Shoreside, analysis is performed on an HPLC using a method modified by Dr. R. Bidigare from the Wright et al. (1991) procedure.  This method identifies the pigments chlorophyll-c3, chlorophyll-c2, peridinin, 19'-butanoyloxyfucoxanthin, fucoxanthin, 19'-hexanoyloxyfucoxanthin, prasinoxanthin, diadinoxanthin, alloxanthin, diatoxanthin, lutein, zeaxanthin, chlorophyll-b, chlorophyll-a, divinyl chlorophyllide-a, alpha and beta carotene. Additionally, chlorophyll-a and phaeopigments are analyzed using a fluorometric assay.\n\ncdm_data_type = Other\nVARIABLES:\nID (unitless)\ntime (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)\nVessel (unitless)\nlatitude (degrees_north)\nlongitude (degrees_east)\nCruise_type (unitless)\nCruise_num (unitless)\nCast (unitless)\nCast_type (unitless)\nBottle_number (unitless)\nQF_Niskin_GoFlo (uniteless)\ndepth (m)\nQF_depth (unitless)\np1 (nanograms per kilogram (ng/kg))\nQF_p1 (unitless)\np2 (nanograms per kilogram (ng/kg))\nQF_p2 (unitless)\np3 (nanograms per kilogram (ng/kg))\n... (40 more variables)\n BCO-DMO bcodmo_dataset_893521_v6
log in [BATS sediment trap particle flux] - Determination of carbon, nitrogen, and phosphorus content in sinking particles at the Bermuda Atlantic Time-series Study (BATS) site from December 1988 to December 2023 using a Particle Interceptor Trap System (PITS) (Bermuda Atlantic Time-series Study) Data presented here contain 35 years of elemental sinking fluxes of carbon, nitrogen, and phosphorus (C, N, P) from the Bermuda Atlantic Time-series Study site from December 1988 (BATS Cruise 3) through December 2023 (BATS Cruise 411). The BATS program uses a method developed by Knauer et al. (1979) which was used extensively in the VERTEX program. In summary, to trap oceanic sediment flux, BATS uses a floating array comprised of polycarbonate tubes (7 cm diameter by 53 cm height) containing a buffered brine solution, with polycarbonate filters at the bottom to collect flux. Four tubes are deployed at each depth (150, 200, and 300 meters) and three additional tubes for blank counts are prepared but not deployed. The floating sediment trap array with collection tubes is deployed during monthly BATS cruises for a target time of 72 hours, but deployment time is subject to change depending on weather and/or emergency conditions. After recovery, the filters are examined under a microscope to remove swimming zooplankton caught on the traps to prevent skewed end results. Three samples from each depth are acidified to remove inorganic carbon before measuring organic carbon and nitrogen using a CE440 Elemental Analyzer, while the remaining non-acidified sample is used for total carbon estimates. Additional tubes are also prepared and deployed (three per depth) for phosphorus samples that are analyzed at Bigelow Laboratory of Ocean Sciences using a separate analytical procedure supervised by Dr. Michael Lomas.\n\ncdm_data_type = Other\nVARIABLES:\nBATS_Cruise_ID (unitless)\nVessel (unitless)\nDate_deployed (unitless)\nlatitude (Latitude_deployed, degrees_north)\nlongitude (Longitude_deployed, degrees_east)\nDate_recovered (unitless)\nLatitude_recovered (degrees_north)\nLongitude_recovered (degrees_east)\nCruise_type (unitless)\nCruise_num (unitless)\ndepth (m)\nM1 (milligrams material per square meter per day (mg/m^2/day))\n... (25 more variables)\n BCO-DMO bcodmo_dataset_894099_v4
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_3782.subset https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_3782 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_3782.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_3782/ public [Niskin bottle samples] - Niskin bottle water samples and CTD measurements at water sample depths collected at Bermuda Atlantic Time-Series sites in the Sargasso Sea ongoing from 1988 (Bermuda Atlantic Time-series Study) Niskin bottle samples. CTD measurements at water sample depths and Niskin bottle water samples from the Bermuda Atlantic Time-series Study (BATS) and from Station S, located 25 km SE of Bermuda (32°10N, 64°30W) Measurements have been collected since 1988 and include nutrients, biogeochemical concentration, bacterial enumeration, and cyanobacteria..\n\ncdm_data_type = Point\nVARIABLES:\ncruise_type (unitless)\ncruise_type_text (unitless)\ncruise_number (unitless)\ncast_number (unitless)\ndecy (year)\ntime (ISO Datetime, seconds since 1970-01-01T00:00:00Z)\nlatitude (degrees_north)\nlongitude (degrees_east)\nfilename (unitless)\nId (unitless)\ndepth (m)\nniskin_number (unitless)\np1 (nanograms per kilogram)\np2 (nanograms per kilogram)\np3 (nanograms per kilogram)\np4 (nanograms per kilogram)\np5 (nanograms per kilogram)\np6 (nanograms per kilogram)\np7 (nanograms per kilogram)\np8 (nanograms per kilogram)\np9 (nanograms per kilogram)\np10 (nanograms per kilogram)\np11 (nanograms per kilogram)\np12 (nanograms per kilogram)\n... (41 more variables)\n https://erddap.bco-dmo.org/erddap/metadata/fgdc/xml/bcodmo_dataset_3782_fgdc.xml https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_3782_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_3782/index.htmlTable https://www.bco-dmo.org/dataset/3782 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_3782.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_3782&showErrors=false&email= BCO-DMO bcodmo_dataset_3782

 
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