# 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 11:07:26 # original profile science log name: f8146.496.20220512T073934.science.mat # profile date(gmt): 12-May-2022 05:12:28 # profile lat: 20.8286 # profile lon: -136.4491 # profile number: 496 # 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 2.45000 21.48080 34.58320 24.04903 0.17683 0.00071 205.78169 93.55781 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 7.66000 21.48300 34.58340 24.04885 0.20109 0.00059 204.50778 92.98250 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 12.75000 21.48580 34.58430 24.04903 0.20987 0.00050 203.82529 92.67615 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 17.47000 21.48640 34.58350 24.04850 0.20232 0.00070 203.96970 92.74287 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 21.91000 21.49070 34.58260 24.04687 0.21780 0.00057 204.45332 92.96667 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 27.42000 21.49020 34.58420 24.04853 0.21780 0.00071 204.85156 93.14965 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 32.35000 21.49130 34.58360 24.04804 0.21064 0.00057 205.46175 93.42699 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 37.76000 21.49310 34.58350 24.04776 0.18648 0.00076 205.43017 93.41561 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 43.12000 21.49300 34.58450 24.04883 0.18363 0.00062 205.03912 93.23852 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 48.37000 21.49250 34.58550 24.05001 0.21780 0.00071 205.19841 93.30768 -999.00000 -999.00000 -999.00000 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