# 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 11:07:09 # original profile science log name: f8146.412.20220424T170302.science.mat # profile date(gmt): 23-Apr-2022 19:28:26 # profile lat: 20.9002 # profile lon: -136.183 # profile number: 412 # 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 3.83000 22.11760 34.39580 23.72966 0.17762 0.00079 233.76002 107.34796 -999.00000 12.67646 20.38771 20.28043 19.36300 8.54000 22.11880 34.39600 23.72973 0.19360 0.00067 237.41263 109.02479 -999.00000 10.61665 17.13354 16.89328 12.98768 13.23000 22.11840 34.39570 23.72987 0.20224 0.00054 237.57801 109.10072 -999.00000 9.12003 14.85053 14.51531 8.84916 17.71000 22.11880 34.39720 23.73115 0.18880 0.00050 233.94245 107.43061 -999.00000 7.66233 12.54591 12.15663 6.00965 23.05000 22.11610 34.39710 23.73213 0.14378 0.00066 229.41102 105.34618 -999.00000 6.44114 10.61877 10.19293 3.91862 28.15000 22.11720 34.39620 23.73143 0.18629 0.00068 225.98618 103.77370 -999.00000 5.46380 9.05951 8.64771 2.65850 33.45000 22.11950 34.39560 23.73063 0.15468 0.00037 223.44644 102.61045 -999.00000 4.74816 7.95257 7.57019 1.83900 38.71000 22.12020 34.39750 23.73216 0.13836 0.00064 219.34726 100.73213 -999.00000 3.96428 6.69918 6.34128 1.21161 43.17000 22.12330 34.39600 23.73040 0.18429 0.00084 217.89975 100.06691 -999.00000 3.37738 5.72683 5.37481 0.84481 48.37000 22.12300 34.39660 23.73123 0.19511 0.00062 216.74698 99.53909 -999.00000 2.84147 4.83835 4.49742 -999.00000 53.49000 22.12440 34.39660 23.73112 0.17605 0.00067 215.44495 98.93974 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