# 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 11:07:11 # original profile science log name: f8146.421.20220502T165250.science.mat # profile date(gmt): 01-May-2022 19:57:36 # profile lat: 21.1806 # profile lon: -136.5435 # profile number: 421 # 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 3.92000 21.82820 34.45800 23.85776 0.16147 0.00079 230.48774 105.36155 -999.00000 10.70974 18.86943 17.60812 15.67286 6.22000 21.83690 34.45760 23.85516 0.15951 0.00073 233.83089 106.89783 -999.00000 10.02545 17.75903 16.54438 13.36684 11.79000 21.83560 34.45845 23.85647 0.17058 0.00067 233.69170 106.83093 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 17.36000 21.83430 34.45930 23.85778 0.18165 0.00061 233.55250 106.76404 -999.00000 6.97814 12.62544 11.67106 5.76249 23.60000 21.83950 34.45810 23.85576 0.20896 0.00062 228.62906 104.51531 -999.00000 5.61277 10.28435 9.47839 3.45218 27.84000 21.83810 34.45950 23.85746 0.18434 0.00051 223.63575 102.21433 -999.00000 4.85360 8.96016 8.25333 2.51486 32.02000 21.81670 34.46360 23.86676 0.17573 0.00055 221.31854 101.11832 -999.00000 4.03223 7.48764 6.87201 1.78287 38.06000 21.78940 34.46980 23.87939 0.18639 0.00050 218.51137 99.78213 -999.00000 3.18525 5.99110 5.48445 1.04959 43.24000 21.75040 34.47840 23.89703 0.20088 0.00062 215.67496 98.38946 -999.00000 2.51743 4.76664 4.36578 0.68007 48.16000 21.67420 34.49860 23.93376 0.27477 0.00075 213.42937 97.17110 -999.00000 1.98027 3.76986 3.45568 0.44512 52.68000 21.48980 34.54080 24.01701 0.29040 0.00075 212.03863 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