# 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 11:07:13 # original profile science log name: f8146.431.20220504T172518.science.mat # profile date(gmt): 04-May-2022 14:31:19 # profile lat: 21.2867 # profile lon: -136.5119 # profile number: 431 # 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 3.69000 21.68080 34.50410 23.93371 0.10525 0.00062 264.70285 120.70658 -999.00000 31.26293 60.95355 59.37306 55.17154 8.27000 21.67480 34.50590 23.93699 0.11273 0.00054 271.50530 123.80139 -999.00000 28.91687 57.33266 56.27761 42.43296 12.95000 21.67670 34.50430 23.93549 0.09680 0.00067 268.84838 122.55533 -999.00000 23.03235 46.31953 45.03838 26.40396 18.00000 21.63470 34.51220 23.95339 0.11324 0.00058 264.42879 120.42606 -999.00000 19.05535 38.99733 37.67292 17.66436 22.71000 21.56230 34.52290 23.98180 0.15276 0.00062 258.47806 117.57132 -999.00000 14.56240 -999.00000 -999.00000 -999.00000 27.83000 21.47990 34.54030 24.01803 0.16125 0.00066 253.15923 115.01115 -999.00000 13.16096 26.94725 25.48951 7.39796 32.58000 21.40700 34.55190 24.04716 0.15367 0.00063 248.56603 112.76605 -999.00000 11.83730 24.43197 23.09463 5.09881 37.15000 21.28460 34.57960 24.10205 0.16940 0.00067 244.29677 110.66759 -999.00000 10.65708 22.23168 21.06778 3.79842 42.71000 21.26560 34.58540 24.11195 0.16159 0.00062 241.95034 109.58017 -999.00000 8.09019 16.92938 15.79244 2.14069 47.59000 21.26140 34.58600 24.11381 0.17328 0.00066 237.57794 107.58155 -999.00000 6.51470 13.58343 12.47580 1.33903 51.60000 21.24640 34.59030 24.12139 0.21780 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