# 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 11:07:24 # original profile science log name: f8146.488.20220511T102132.science.mat # profile date(gmt): 11-May-2022 07:46:41 # profile lat: 20.9196 # profile lon: -136.4335 # profile number: 488 # 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 3.20000 21.41730 34.56130 24.04991 0.18492 0.00066 203.82921 92.56227 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 7.66000 21.43040 34.56340 24.04813 0.17713 0.00058 202.74567 92.08211 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 12.67000 21.43000 34.56330 24.04843 0.20758 0.00055 202.00856 91.74731 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 18.13000 21.43240 34.56150 24.04669 0.23360 0.00046 201.55972 91.54267 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 22.59000 21.43050 34.56280 24.04844 0.21780 0.00050 201.70033 91.60939 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 27.51000 21.43420 34.56130 24.04655 0.21780 0.00062 201.92369 91.71306 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 32.50000 21.43690 34.56070 24.04563 0.23516 0.00066 202.03119 91.76391 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 36.96000 21.43640 34.56180 24.04684 0.23670 0.00058 201.58627 91.56197 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 42.21000 21.43540 34.56130 24.04701 0.18464 0.00058 201.11714 91.34688 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 47.29000 21.44000 34.59330 24.07034 0.21780 0.00062 201.42410 91.47872 -999.00000 -999.00000 -999.00000 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