bio-optics 93mar 25mar93-15may93 Optical, physical and auxillary profile casts made with BOPS (BioOptical Profiling System). The bops2 package contains downwelling, upwelling and deck optical instruments in addition to auxillary instruments such as temperature, conductivity and fluorescence. The downcasts and upcasts are recorded seperately. ts: depth=depth(m) temp=temperature(m) cond=conductivity(mmho/cm) sal=salinity(ipss-78) sigmat=denisty anomoly(kg/m3) optics.noon depth(m)=1 meter bins ed410(w/m2/nm)=downwelling spectral irradiance at 410nm ed441(w/m2/nm)=downwelling spectral irradiance at 441nm ed488(w/m2/nm)=downwelling spectral irradiance at 448nm ed507(w/m2/nm)=downwelling spectral irradiance at 507nm ed520(w/m2/nm)=downwelling spectral irradiance at 520nm ed565(w/m2/nm)=downwelling spectral irradiance at 565nm ed589(w/m2/nm)=downwelling spectral irradiance at 589nm ed625(w/m2/nm)=downwelling spectral irradiance at 625nm eu410(w/m2/nm)=upwelling irradiance at 410nm eu441(w/m2/nm)=upwelling irradiance at 441nm eu488(w/m2/nm)=upwelling irradiance at 488nm eu507(w/m2/nm)=upwelling irradiance at 507nm eu520(w/m2/nm)=upwelling irradiance at 520nm eu565(w/m2/nm)=upwelling irradiance at 565nm eu589(w/m2/nm)=upwelling irradiance at 589nm eu625(w/m2/nm)=upwelling irradiance at 625nm e+410(w/m2/nm)=deck downwelling irradiance at 441nm e+441(w/m2/nm)=deck downwelling irradiance at 441nm e+488(w/m2/nm)=deck downwelling irradiance at 488nm e+560(w/m2/nm)=deck downwelling irradiance at 560nm temperature(degC) fluorescence(volts) sigmat-from depth/temperature/salinity Nominally one bops cast per station. Several measurements per one meter of depth. A bops deployment consists of a downcast to 250m, which includes a continuous screen plot of selected variables, and then an upcast when Go-Flo rosette bottles are tripped at selected depths within the water column. Optical measurements made with MER2040's #8714,#8715 and #8708; temperature made with Seabird SBE3 #742; conductivity measurments made with Seabird SBE4 #73 with a conductivity pump #77; fluorescence measurements made with Seatech #35 profiling fluorometer. The bops had twelve 5 liter Go-Flo bottles on its frame. Shipboard stations held at LTER grid locations. southern ocean, antaractic, bio-optics, ocean optics, hydrography Binary raw data files. Ascii calibrated and binned data files. online lter originial pc disks ~lter/lterdata/91nov/bops/optics/* Raymond C. Smith Karen S. Baker Raymond C. Smith, David W. Menzies David W. Menzies-calibration Automated data collection to ibm/pc(386). Karen S. Baker, David W. Menzies Raymond C. Smith 10 June 1993 01 May 1996/ksb Lewis, A.E.: The practical salinity scale 1978 and its antecedents IEEE, J of Oceanic Engr. 5:3-8 (1980). Smith, R.C., C.R.Booth, J.L.Star: Oceanographic Biooptical Profiling System. Applied Optics 23:2791-2797, 1984. Smith, R.C., D.Menzies, C.R.Booth: Oceanopgraphic Bio-optical Profiling System II. Ocean Optics Conference XIII, SPIE, 1996. Smith, R.C. and K.S.Baker: The analysis of ocean optical data. Proceedings of the SPIE, Ocean Optics VII, 489: 119-126 (1984). Smith, R.C. and K.S.Baker: The analysis of ocean optical data II. Proceedings of the SPIE, Ocean Optics VIII, 637: 95-107 (1986). UNESCO: The practical salinity scale 1978 and the international equation of state of seawater 1980. Tenth report of the Joint Panel on Oceanogrphic Tables and Standards. Technical Papers in Mar. Sci. No. 36 (1981). UNESCO: Background papers and supporting data on the Practical Salinity Scale 1978. Technical Papers in Mar. Sci. No. 37 (1981). UNESCO: Background papers and Supporting Data on the International Equation of State of Sea Water 1980. Technical Papers in Mar. Sci. No. 38 (1981). In field plots of bops data made at most stations. Noon casts on clear days were subsetted for optics. The irradiance calibrations require update pending results of new standards tests. In field plots of bops data made at most stations. Discrete bottle salinity samples (52) were run on the salinometer at Palmer Station. Although an old calibration was used in the field for temp and cond processing of the Seabird Profiling instruments on BOPS, the (mar93) temperature calibration and (mar93) conductivity calibrations were used for post processing. Temperature calibrations for the seabird instrument (mar93 and jul93) note a drift of (.0024degC/year). Conductivity calibrations for the seabird instrument (mar93 and dec93) note a drift of (.000066S/m/month). There is a calculated salinity offset of approximately .005 (ipss78), ie mean(salinity.bops-salinity.bottle), so no correction has been applied to the seabird instrument data. BOPS oxygen was initially calculated using the calibration values included in 'aaanotes', and calibrated against the discrete bottle samples using the Owens and Millard (1985) method on a group basis. Only downcast values were used due to hysteresis caused by a temperature effect on the oxygen current sensor. Outliers (bad bottles and mis-trips) were not used in the calibration. apr93 lascara/hofmann temp,salinity,sigmat Core measurments available after two years. Citation acknowledgement: "Data from the Palmer LTER data archive were supported by Office of Polar Programs, NSF (OPP-9011927)."

Datafile Form V1.3 for describing a data file.