chl 91nov 07nov91-21nov91 Chlorophyll and phaeopigment from extracted fluorescence analysis of discrete bottle samples. Taken with the BOPS profiling system. event grid(field) year month day julian_day hour(gmt) minute(gmt) depth(m) chlorophyll(mg/m3) phaeopigment(mg/m3) code latitude(degS) latitude(minS) longitude(degW) longitude(minW) chlorophyll-from fluorescence Smith et al (1981) phaeopigment-from fluorescence Smith et al (1981) Each bops cast to maximum of 500m had 12 chlorophyll samples, one from each Go-Flo bottle. Water is filtered using HA milipore filters. The filters are stored in acetone and frozen for a minimum of 24hrs. A Turner fluorometer is used to determine the concentration of extracted chlorophyll. The Turner fluorometer UCMBOI was used with the Mar92 calibration. Samples taken from each bottle on all BOPS casts and also a 'surface' sample taken from the ship sea-water system at BOPS stations and XBT stations. Chlorophyll analysis done at sea. Fluorometer calibration stable. southern ocean, antarctic, biomass, chlorophyll, phaeopigment ascii online lter ~lter/lterdata/91nov/chl/ Raymond C. Smith Karen S. Baker Phil Handley Tim Newberger Charleen R. Johnson Karen S. Baker Karen S. Baker 16 April 92 10 Jun 94 - ksb 16 Dec 96 - ksb Smith, R.C., K.S.Baker, P.Dustan: Fluorometric Techniques for the Measurement of Oceanic Chlorophyll in the Support of Remote Sensing, SIO Ref. 81-17, 1981. Smith, R.C., K.S.Baker and M.Vernet: Seasonal and Interannual Variability of Phytoplankton Biomass West of the Antarctic Peninsula. Journal of Marine Systems (in press). From Carbon Fluxes and Dynamic Processes in the Southern Ocean: Present and Past, International Symposium, Brest, France, August 1995. Smith, R.C., H.Dierssen, M.Vernet: Phytoplankton Biomass and Productivity, in Foundations for Ecological Research West of the Antarctic Peninsula, Ross et al (ed), AGU Antarctic Research Series 70, pp333-256, 1996. Visual inspection by plot identified 5 typographical errors. Calibrations were carried out with chlorophyll-a from the SIGMA company of the type spinach (S) and of type Anacystis (A) prior to the cruise, on station, and post cruise. UCMBOI had calibrations (AJun91, SFeb92, AMar92); UCMBOII had calibrations (AJul91); 5709 had calibrations (SMay91, SDec91, SFeb92, AMar92). The difference between use of spinach and anacystis was small (2.5%). The change with time in calibration dominated (6-12%) possible errors due to the variations in personnel, techniques and age of samples. During the stay at Palmer, comparisons were made between use of UCMBOI and 5709. The mar92 calibration was done for both fluorometers simutaneously, Comparing duplicate samples run on both fluorometers using the mar92 calibration shows on average a random difference of 10%. Using other calibrations for 5709 (May91) and UCMBOI (Jun91) gave a larger random difference (16%). Original file on mac in field. Correction April92 by C.R.Johnson. Determine final calibration (Mar92) by K.S.Baker in May92. 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)."