# 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 11:07:32 # original profile science log name: f8146.524.20220527T041746.science.mat # profile date(gmt): 27-May-2022 01:23:11 # profile lat: 20.8442 # profile lon: -136.5383 # profile number: 524 # 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 3.53000 22.56950 34.27070 23.50712 0.15753 0.00067 217.07702 100.38525 -999.00000 -999.00000 -999.00000 0.00387 -999.00000 8.75000 22.56490 34.26970 23.50796 0.20029 0.00067 216.80992 100.26018 -999.00000 -999.00000 -999.00000 0.00462 -999.00000 13.24000 22.57260 34.27080 23.50686 0.13426 0.00080 216.79200 100.21638 -999.00000 -999.00000 -999.00000 0.00529 -999.00000 19.08000 22.48620 34.26540 23.52761 0.17799 0.00071 216.92282 100.13746 -999.00000 -999.00000 -999.00000 0.00634 -999.00000 23.59000 22.45130 34.26500 23.53745 0.19360 0.00071 216.91291 100.09050 -999.00000 -999.00000 -999.00000 0.00881 -999.00000 28.56000 22.43720 34.26470 23.54151 0.19360 0.00071 216.87717 100.04846 -999.00000 -999.00000 -999.00000 0.01088 -999.00000 33.29000 22.42510 34.26380 23.54452 0.20735 0.00078 216.89541 100.02917 -999.00000 -999.00000 -999.00000 0.01288 -999.00000 38.92000 22.40420 34.26380 23.55075 0.23457 0.00088 217.21534 100.14400 -999.00000 -999.00000 -999.00000 0.01788 -999.00000 44.05000 22.39610 34.26340 23.55302 0.23448 0.00067 217.85927 100.37405 -999.00000 -999.00000 -999.00000 0.02229 -999.00000 48.54000 22.36160 34.27270 23.57007 0.24538 0.00058 220.14228 100.86453 -999.00000 -999.00000 -999.00000 0.02648 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