# APEX float data from float 8146 (PI: Angelicque White, University of Hawaii) deployed during the Grandients 4 cruise (TN397) in Nov 2021 at ~20N/140W (float is still transmitting data) # Designed float mission: a repeated sequence of burst sampling (~6 profiles/day) of the top 200m for ~ 4-7 days, followed by daily profiles for ~10-14 days # DATA ARE PROVISIONAL AND WILL BE ALTERED AS MORE PROFILES ARE ADDED (eg. drift correction of sensors will likely be performed in the near future) # For questions about float data, please inquire Fernanda Henderikx (fhenderi@hawaii.edu) # date of file creation: 15-Aug-2022 11:07:18 # original profile science log name: f8146.459.20220508T015536.science.mat # profile date(gmt): 07-May-2022 23:00:26 # profile lat: 21.2836 # profile lon: -136.4022 # profile number: 459 # Instruments on APEX: SBE41 (ctd), BBFL2 (chl,bbp), C-ROVER (beam attenuation), CRV2K (downwelling irradiance), Aandera 4330 (oxygen) # Applied corrections/calibrations: # chl: counts converted to mg/m3 using factory calibrationsand deep chl values # bbp: vol. scatt. converted to particle backsttering coefficient (bbp) using betasw of Zhang et al (2009) and Xi from Boss and Pegau (2001) # irradiance data: data were qa/qc following protocols of Organelli et al (2016), JTECH # oxygen optode data: salinity and pressure compensation corrections applied using ctd data according to Aandera manual, and air calibrations/Gain corrections following Bushinsky et al (2016) # flag or NaN value: -999 # pressure,temperature,salinity,sigma0,chl,bbp(650nm),[O2],O2sat,particulateBeamAttenuation(650nm),IrradianceCh1,IrradianceCh2,IrradianceCh3,IrradianceCh4 # dbar,degC,psu,kg/m3,mg/m3,1/m,uM/kg,percentsat,1/m,uW/cm2/nm,uW/cm2/nm,uW/cm2/nm,uW/cm2/nm 2.43000 21.31700 34.54450 24.06464 0.23499 0.00071 274.74691 124.52765 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 7.76000 21.31890 34.54240 24.06280 0.22529 0.00071 273.80939 124.08604 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 12.93000 21.29740 34.54070 24.06768 0.23071 0.00071 258.15632 116.95254 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 16.36000 21.29510 34.53770 24.06620 0.21780 0.00066 248.92501 112.74235 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 21.39000 21.28593 34.53553 24.06734 0.20973 0.00063 245.67908 111.26126 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 26.42000 21.27677 34.53337 24.06847 0.20167 0.00061 242.43315 109.78047 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 31.45000 21.26760 34.53120 24.06960 0.19360 0.00058 239.18723 108.29997 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 37.56000 21.27080 34.52810 24.06669 0.19360 0.00054 234.25424 106.06099 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 42.53000 21.27860 34.53000 24.06626 0.23281 0.00056 231.47371 104.76564 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 46.48000 21.23910 34.52400 24.07271 0.27519 0.00067 231.01442 104.50771 -999.00000 -999.00000 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