TITLE:    PALMER LTER: Hydrography and Optics within the Peninsula 
	  Grid, November 1991 Cruise
AUTHOR:   Raymond C. Smith, Karen S. Baker, Kelley K. Hwang, 
	  David Menzies, Kirk J. Waters
Palmer LTER Contribution #10

The Palmer Long Range Ecological Research (LTER) program focuses on 
marine ecosystem processes which link physical forcing, especially the
annual advance and retreat of pack ice, to biological factors at 
different levels of the food web.  The abundance and distribution of 
phytoplankton biomass and primary production include contributions 
from open water, the marginal ice zone (MIZ) and ice algae.
Controls on phytoplankton production reflect the space/time variability 
in ice-cover, turbulent mixing, nutrient availability and solar 
irradiance.  The LTER sampling strategy was selected to elucidate the 
relative importance of these mechanisms and our hydrographic and 
bio-optical observations provide data necessary to quantify linkages 
between the physical and biological components of the system.
During the Palmer LTER cruise on the RV Polar Duke in mid-November
1991, the Bio-Optical Profiling System (BOPS-II)
(Smith Booth Star 1984,Smith Booth Menzies Waters)
was used to sample and define the physical, optical, chemical and biological
characteristics of the marginal ice zone (MIZ) in the large-scale area 
surrounding Palmer Station.
We carried out transects along the Renaud (500), Palmer Basin (600), and 
Dallmann Bay (700) lines of the PalLTER Peninsula Grid (Waters Smith 1991).
Here we present preliminary hydrographic and optical results which 
complement the LTER phytoplankton 
(Prezelin Boucher Moline Stephens Seydel Scheppe 1991) and krill work
(Quetin Ross Prezelin Haberman Hacecky Newberger 1991).