cruise: GOS2023001003 time: 2023-03-06T14:35:55Z - 2023-03-09T05:50:58Z latitude: 60.429-60.858 longitude: 4.199-5.734 quality_description: Each profile of the total data set was given a quality flag following the Oceansites reference manual (http://www.oceansites.org/docs/oceansites_data_format_reference_manual.pdf). title: CTD profiles and bottle data from 60.429 - 60.858 N, 4.199 - 60.858 E in Vestland, Norway sampled during GOS2023001003, 06.03.2023, 14:35 - 09.03.2023, 05:50 UTC. summary: The file contains temperature, practical salinity, and oxygen measurements binned into 1 db pressure bins. The raw data was measured using a Seabird SBE 11plus V 5.1e CTD and post-processed with the Seasoft software package following IMR, Norway standard procedures. Only data from the downcast of the profile was used. If available, water sample data (DIC, TA, nutrients, Oxygen) collected during the cruise is included, as well as (uncalibrated) profiles of par, spar, transmission and flourescence. keywords: EARTH SCIENCE>OCEANS>OCEAN TEMPERATURE>WATER TEMPERATURE, EARTH SCIENCE>OCEANS>OCEAN PRESSURE>WATER PRESSURE,EARTH SCIENCE>OCEANS>SALINITY/DENSITY>SALINITY keywords_vocabulary: GCMD Science Keywords naming_authority: HI/NMDC data_type: CTD feature_type: Profile flag_values: 0,1,2,3 flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data location: Geographic Region>Polar geospatial_lat_min: 60.429 geospatial_lat_max: 60.858 geospatial_lon_min: 4.199 geospatial_lon_max: 5.734 area: Vestland, Norge (Masfjorden) time_coverage_start: 2023-03-06T14:35:55Z time_coverage_end: 2023-03-09T05:50:58Z Conventions: CF-1.6, ACDD-1.3 date_created: 2024-04-10T09:04:26 history: File created at 2024-04-10T09:04:26 using xarray in Python3. processing_level: Post-recovery calibrations have been applied, data manually reviewed. creator_type: person creator_institution: Geophysical Institute, University of Bergen creator_name: Elin Darelius creator_url: https://orcid.org/0000-0003-3060-0317 creator_email: elin.darelius@uib.no;;;;;;;;;;;;;;;;;;;;;;; institution: Geophysical Institute, University of Bergen principal investigator: Kjersti Daae source: CTD profile platform: Water-based Platforms>Vessels>Surface>G. O. Sars license: https://creativecommons.org/licenses/by/4.0/ iso_topic_category: oceans publisher_name: Norwegian Marine DataCentre (NMDC) publisher_url: https://www.nmdc.no publisher_email: datahjelp@imr.no period: 2023-03-06 - 2023-03-09 Bottle_data:Numbers_of_samples_analysed: 92 dissolved oxygen (DO) samples. 12 inorganic carbon (DIC) and total alkalinity (TA) samples, Dickson CRM batch 204. 12 Nutrients samples. Bottle_data:Equiment_and_methods_used: DO samples measured with SIO automatic Winkler titrator, methods described in Langdon (2010). Reagents include 3M manganese chloride, 8M sodium hydroxide/ 4M sodium iodide, 5M sulfuric acid, sodium thiosulfate. DIC and TA measured with Marianda VINDTA 3D and 3S, respectively, according to Dickson et al (2007) SOP 2 and 3b. DIC samples acidified with 10% phosphoric acid. TA titrant 0.1M hydrochloric acid/ 0.6M sodium chloride. Nutrients are analysed using colorimetric method. Bottle_data:Sampling_and_storage_procedures: Water collected with water sampler (eg Niskin). DO samples into 125ml volume calibrated flasks with stoppers, added 1ml MnCl2 and 1ml NaOH/NaI, stored in refrigerator/cooler. DIC/TA samples into 250ml borosilicate glass bottles with greased stoppers, 0.1ml of saturated HgCl2 added. Nutrients samples into 20ml scintillation vials, 0.2ml chloroform added, stored in refrigerator. Bottle_data:Precision_and_accuracy: DO precision is 0.001 ml/l. DIC and TA uncertainty 2 µmol/kg. CRM batch 204 cert DIC 2028.23, TA 2202.12; measured DIC average 2012.90, applied calibration factor 1.007618 to all samples; measured TA average 2189.39, applied calibration factor 1.005817 to all samples., detection limit for nutrients are given as attributes to the respective variable Bottle_data:Standards: DO standard is 0.012N potassium iodate solution, self-prepared, measured daily. DIC/TA standard is Dickson CRM, measured before and after every 12-15 samples. Bottle_data:Scientific_references: Dickson, A.G., Sabine, C.L. and Christian, J.R. (Eds.) (2007). Guide to Best Practices for Ocean CO2 Measurements. PICES Special Publication 3, 191 pp. Langdon, C. (2010). Determination of dissolved oxygen in seawater by Winkler titration using the amperometric technique. in The GO-SHIP Repeat Hydrography Manual: A Collection of Expert Reports and Guidelines. IOCCP Report No. 14, ICPO Publication Series No. 134, Version 1. Winkler, L.W. (1888). Die Bestimmung des in Wasser gelösten Sauerstoffen. Berichte der Deutschen Chemischen Gesellschaft, 21: 2843–2855. Bottle_data:Laboratory_tempearture: DO sample temperature measured during sampling. DIC samples thermostated to 20C and TA samples to 25C. Nutrients (PO4,Si,NO2,NO3) sample temperature was 20C Bottle_data:Equation_of_state: The DO values are converted to umol/kg with density calculated using the gsw-package python package Bottle_data:Reference_materials_manufacturer_batchs_values: Potassium iodate: Merck. Dickson CRM batch 204, DIC 2028.23 µmol/kg, TA 2202.12 µmol/kg Bottle_data:Lab_technician: Halvor Nordang, Geophysical Institute, University of Bergen. Sampling and DO-analysis was carried out by students under supervision , Nutrients (PO4,Si,NO2,NO3) was analysed at the Institute for Marine Research, Bergen, Norway t unit: degrees C t long name: temperature (in situ), ITS90 t coverage_content_type: physical measurement t standard_name: sea_water_temperature t_flag flag_values: 0,1,2,3 t_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data raw_o unit: ml/L raw_o long name: Dissolved oxygen concentration in sea water, raw data ml/L raw_o coverage_content_type: physical measurement raw_o_flag flag_values: 0,1,2,3 raw_o_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data sp unit: 1e-3 sp long name: practical salinty of seawater sp coverage_content_type: physical measurement sp standard_name: sea_water_practical_salinity sp calibration: The raw conductivity (raw_c) was corrrected by adding a cruise constant correction of -0.0002S/m (determined from comparison with bottle data following IMRs standard procedures) before the salinity was calculated. sp_flag flag_values: 0,1,2,3 sp_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data raw_c unit: S/m raw_c long name: conductivity, raw data: uncalibrated raw_c coverage_content_type: physical measurement raw_c_flag flag_values: 0,1,2,3 raw_c_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data raw_fl unit: mg/m^3 raw_fl long name: Flouresence, raw data- uncalibrated raw_fl coverage_content_type: physical measurement raw_fl_flag flag_values: 0,1,2,3 raw_fl_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data raw_par unit: uMol/m²/s raw_par long name: PAR/Irradiance, Biospherical/Licor, raw data: uncalibrated raw_par_flag flag_values: 0,1,2,3 raw_par_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data raw_spar unit: raw_spar long name: SPAR/Surface Irradiance, raw data: uncalibrated raw_spar_flag flag_values: 0,1,2,3 raw_spar_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data raw_trans unit: % raw_trans long name: Beam Transmission, Chelsea/Seatech/Wetlab CStar, raw data: uncalibrated raw_trans_flag flag_values: 0,1,2,3 raw_trans_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data sta long name: Station number lon long name: Longitude lon positive: Westward lat long name: Latitude lat positive: Northward time format: YYYYMMDD hh:mm BTL_t_draw unit: degree Celsius BTL_t_draw long name: Temperature measured in sampling bottle during sampling (C) BTL_t_draw_flag flag_values: 0,1,2,3 BTL_t_draw_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data BTL_p Explanation: Pressure from btl-file, in dbar BTL_p_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data BTL_p_flag flag_values: 0,1,2,3 BTL_s Explanation: Practical salinity from btl-file, uncalibrated BTL_s_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data BTL_s_flag flag_values: 0,1,2,3 BTL_t Explanation: Temperature (ITS-90) from btl-file, in C BTL_t_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data BTL_t_flag flag_values: 0,1,2,3 BTL_o Explanation: Oxygen concentration from btl-file, in ml/l (uncalibrated) BTL_o_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data BTL_o_flag flag_values: 0,1,2,3 BTL_fl Explanation: Fluorescence, Chelsea Aqua 3 Chl Con [ug/L], (uncalibrated) BTL_fl_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data BTL_fl_flag flag_values: 0,1,2,3 DIC unit: µmol/kg DIC long name: Dissolved inorganic Carbon DIC_flag flag_values: 0,1,2,3 DIC_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data Alc unit: µmol/kg Alc long name: Alcalinity Alc_flag flag_values: 0,1,2,3 Alc_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data O2_Winkler unit: µmol/kg O2_Winkler long name: Dissolved oxygen, (Winkler titration) O2_Winkler_flag flag_values: 0,1,2,3 O2_Winkler_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data NO3 unit: µmol/kg NO3 long name: NO3 (µmol/l) NO3 Detection limit: 0.5 NO3_flag flag_values: 0,1,2,3 NO3_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data NO2 unit: µmol/kg NO2 long name: NO2 (µmol/kg) NO2 Detection limit: 0.06 NO2_flag flag_values: 0,1,2,3 NO2_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data PO4 unit: µmol/kg PO4 long name: PO4 (µmol/kg) PO4 Detection limit: 0.06 PO4_flag flag_values: 0,1,2,3 PO4_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data Si unit: µmol/kg Si long name: Si (µmol/kg) Si Detection limit: 0.7 Si_flag flag_values: 0,1,2,3 Si_flag flag_meaning: 0= (probably) good data (sp and o are calibrated), 1 = uncalibrated, raw data (visually inspected), 2 = data outside of calibration range (O2),3 = Potentially bad data Pressure unit: dbar Pressure long name: pressure due to sea water Pressure standard_name: sea_water_pressure_due_to_seawater Pressure coverage_content_type: coordinate Pressure positive: down Niskin long name: Number on Niskin bottle, Niskin 1 is fired at the largest depth and Niskin 12 at the shallowest depth