# 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: f8146.495.20220512T050722.science.mat # profile date(gmt): 12-May-2022 02:41:48 # profile lat: 20.8382 # profile lon: -136.4503 # profile number: 495 # 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 3.15000 21.48430 34.58360 24.04840 0.19360 0.00071 204.52657 92.99511 -999.00000 -999.00000 -999.00000 0.00298 -999.00000 8.16000 21.49350 34.58400 24.04644 0.17647 0.00071 202.89415 92.26493 -999.00000 -999.00000 -999.00000 0.00342 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52.68000 21.49420 34.58730 24.05114 0.20906 0.00075 201.07070 91.40525 -999.00000 -999.00000 -999.00000 0.00325 -999.00000 57.61000 21.44250 34.61170 24.08418 0.24200 0.00076 201.33111 91.43597 -999.00000 -999.00000 -999.00000 0.00321 -999.00000 62.79000 21.34250 34.65080 24.14166 0.25605 0.00055 201.80219 91.60986 -999.00000 -999.00000 -999.00000 0.00297 -999.00000 68.30000 21.42650 34.72490 24.17521 0.28216 0.00046 201.49448 91.58755 -999.00000 -999.00000 -999.00000 0.00401 -999.00000 73.00000 21.42040 34.74560 24.19288 0.28713 0.00057 199.77265 90.70607 -999.00000 -999.00000 -999.00000 0.00392 -999.00000 76.70000 21.31480 34.79310 24.25820 0.32423 0.00061 200.04898 90.59555 -999.00000 -999.00000 -999.00000 0.00457 -999.00000 84.84000 20.88330 34.77370 24.36145 0.54668 0.00061 200.03571 89.95454 -999.00000 -999.00000 -999.00000 0.00476 -999.00000 88.86500 20.71365 34.77590 24.40901 0.61684 0.00066 200.39306 89.88655 -999.00000 -999.00000 -999.00000 -999.00000 -999.00000 92.89000 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