# 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 11:07:34 # original profile science log name: f8146.531.20220528T005422.science.mat # profile date(gmt): 27-May-2022 22:00:17 # profile lat: 20.8947 # profile lon: -136.5403 # profile number: 531 # 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 3.81000 22.54290 34.27320 23.51659 0.15303 0.00096 229.39265 106.04519 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 8.59000 22.52090 34.26970 23.52045 0.15363 0.00067 231.30835 106.86267 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 13.50000 22.49000 34.26770 23.52797 0.14351 0.00066 231.80794 107.05682 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 18.66000 22.48000 34.26810 23.53139 0.17750 0.00083 229.99130 106.19792 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 23.47000 22.47190 34.26780 23.53374 0.16044 0.00087 228.31102 105.40569 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 28.47000 22.46500 34.26880 23.53674 0.18539 0.00087 228.46892 105.46857 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 33.03000 22.46180 34.26860 23.53776 0.18570 0.00071 228.09894 105.29035 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 37.78000 22.45880 34.26960 23.53964 0.23045 0.00074 227.57459 105.02944 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 43.82000 22.43740 34.27690 23.55157 0.28159 0.00083 227.06950 104.55684 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 48.68000 22.12670 34.36700 23.70773 0.29638 0.00083 226.50102 103.62758 -999.00000 -999.00000 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