# 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 11:07:15 # original profile science log name: f8146.441.20220505T205952.science.mat # profile date(gmt): 05-May-2022 18:03:32 # profile lat: 21.2993 # profile lon: -136.4876 # profile number: 441 # 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 3.21000 21.18150 34.51000 24.07553 0.12940 0.00067 292.49115 132.22824 -999.00000 27.54438 50.39702 48.09436 46.09533 7.82000 21.18190 34.50880 24.07474 0.12865 0.00075 309.39566 139.87366 -999.00000 25.03127 46.09307 43.85057 34.01847 12.50000 21.18200 34.50750 24.07397 0.10638 0.00053 313.43959 141.69665 -999.00000 21.75778 40.23500 38.15646 23.88297 16.54000 21.18200 34.50850 24.07494 0.14543 0.00052 312.27524 141.16685 -999.00000 19.93116 37.04654 35.02141 18.66687 22.88000 21.18320 34.50940 24.07563 0.20256 0.00063 304.10680 137.47381 -999.00000 16.45776 30.92965 29.03502 11.42758 27.96000 21.18030 34.51420 24.08035 0.16212 0.00050 299.96894 135.60427 -999.00000 13.67784 25.85955 24.15766 7.56521 33.20000 21.18080 34.52080 24.08551 0.17017 0.00058 292.24568 132.12149 -999.00000 11.66896 22.17636 20.64436 5.14019 37.62000 21.18590 34.55860 24.11309 0.21780 0.00062 278.58581 125.98887 -999.00000 10.18678 19.45233 18.07655 3.72187 42.78000 21.19840 34.59820 24.14006 0.25000 0.00067 265.53337 120.13023 -999.00000 8.62087 16.53394 15.35326 2.57188 47.59000 21.19380 34.60150 24.14408 0.30699 0.00058 259.14741 117.23893 -999.00000 7.29568 14.06263 13.05461 1.77653 52.68000 21.19660 34.60420 24.14563 0.29040 0.00058 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