PALMER STATION
                 SCIENCE SITREP JULY 1995

The following science projects were active at Palmer Station during
the month:

  S-045R  LONG-TERM ECOLOGICAL RESEARCH ON THE ANTARCTIC MARINE   
          ECOSYSTEM:  AN ICE-DOMINATED SYSTEM.  Robin M. Ross and 
          Langdon B. Quetin, University of California, Marine
          Science Institute, Santa Barbara, California  93106.

          No personnel were on station

          Cultures were maintained winter by the winter Assistant 
          Supervisor Laboratory Operations and the ASA Data 
          Entry Clerk, Victoria Hogue, a past member of the 
          S-028 (S-045R) winter field team.  


  S-091   PALMER IRIS SEISMOLOGY.  R. Butler/G. Holcomb, U.S.
          Geological Survey, Albuquerque, NM.

          No personnel were on station. 
   
          The system has been operated by the Station Science Technician.
          Seismic events throughout the month were recorded.  The system
          time was reset on 27 July.


  S-106   VERY LOW FREQUENCY (VLF) REMOTE SENSING OF THUNDERSTORM
          AND RADIATION BELT COUPLING TO THE IONOSPHERE.
          U. Inan, Stanford University.  

          No personnel were on station.
    
          The system has been operated by the Station Science Technician.  
          Synoptic, narrow-band and broad-band recordings of VLF signals 
          were made on a daily basis.
    
          On 06 July, the capstan motor on the Ampex synoptic recorder
          failed.  The motor was subsequently fitted with brushes fabricated
          on site, and synoptic recordings continued on 11 July. 


  S-254   CHLORINE- AND BROMINE-CONTAINING TRACE GASES IN THE 
          ANTARCTIC.  R.A. Rasmussen, Oregon Graduate Institute of 
          Science and Technology, Portland, Oregon. 

          No personnel were on station.

          Four samples were collected in stainless steel canisters, 
          behind the Clean Air Facility by the Station Physician.  
          The samples were labeled with the date and stored for 
          retrograding. 


  S-257C  COLLECTION OF ATMOSPHERIC AIR FOR THE NOAA/CMDL 
          WORLDWIDE FLASK SAMPLING NETWORK.  
          J.T. Peterson, NOAA, Boulder 

          No personnel were on station. 

          Six air samples were collected in glass flasks from a
          site behind the Clean Air Facility, by the Station 
          Physician, using the MAKS sampler.               


  S-275   UM/DOE-EML REMOTE ATMOSPHERIC MEASUREMENTS PROGRAM.
          J. Prospero/T. Snowdon, University of Miami; C.
          Sanderson/N. Chui, EML/DOE N.Y.  

          No personnel were on station.  

          The system has been operated by the Station Science Technician.   
          One sample filter was exposed for the duration of each week, and 
          a weekly schedule of calibration, background, and sample counts 
          was maintained.  

          Automated counting ceased on several occasions throughout July,
          and was successfully restarted each time.  This problem is under
          investigation.


  T-312   TERASCAN SATELLITE IMAGING SYSTEM.  R. Whritner, Scripps
          Institute of Oceanography, La Jolla, CA.

          No personnel were on station.  

          The system has been operated by the Station Science Technician.  
          The TeraScan system collected, archived, and processed DMSP and 
          NOAA telemetry, maintaining a schedule of 15 passes per day.
          Automatic Weather Station (AWS) data was collected from 
          the Bonaparte Point and Hugo Island AWS in support of the 
          LTER project.  

          On 02 July and again on 11 July, the TeraScan sun workstation
          halted itself; both times a hard reboot was required.  On 11
          July a tape drive hung-up in an undetermined state late
          at night, resulting in 6 pass archive failures.  On 17 July
          one pass was not collected although the system was working
          normally; this problem may be related to a known software
          bug with passes that straddle midnight.  A similar problem
          occurred on 20 July when TeraScan failed to collect 4 passes;
          no cause for the failure was found.  On 13 July the power supply
          in the attached Artecon peripherals box failed, and SeaSpace 
          support was notified. On 14 July the power supply was replaced 
          and the system began collecting passes again; one day's data 
          was lost.  On 27 July, 7 passes were lost due to a workstation  
          hang-up during the night; a hard reboot was required.


  T-513   UV MONITORING EXPERIMENT.  C. Booth, Biospherical
          Instruments, Inc. (BSI)  

          No personnel were on station.

          The system has been operated by the Station Science Technician.  
          Throughout the month, raw irradiance data were collected daily 
          and transmitted to BSI.  Preliminary irradiance data and 
          inferred ozone abundances were produced in support of Science.

          On 13 July an absolute calibration of the UV monitor was
          performed.
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