TITLE: Palmer LTER: Annual Season Sampling on Station AUTHORS: Raymond C. Smith, Janice L. Jones, Langdon B. Quetin, Robin M. Ross, Karen S. Baker, Wendy A. Kozlowski, Maria Vernet DATE: 1996 Palmer LTER Contribution No. 103 Antarctic Journal of the United States, (accepted) Abstract - The seasonal sampling program for the Palmer Long-Term Ecological Research (LTER) site (Smith et al., 1995) has developed over the past five seasons. Observations of annual events in conjunction with samples collected weekly from October through March at Palmer Station provide a seasonal time series that is enabling us (1) to understand interannual variability in the seasonal timing and rates of processes at lower trophic levels which are reflected spatially and temporally in higher trophic levels (krill, seabird), (2) to place results from the regional scale annual cruises of the Palmer LTER within the specific year's seasonal progression, and (3) to place short-term more process-oriented experiments (by LTER and other Palmer Station Principal Investigators) in a seasonal/interannual context. Weekly observations from October through March include the seasonal progression of hydrography, nutrients, pigment biomass and primary productivity, the near-shore abundance and distribution of Antarctic krill and their larvae, and timing and success of the reproductive cycle of a major predator, Ade\*'lie penguins. The marine water column and seabird sampling schedule, summarized in Table 1, is designed with flexibility to accommodate variability in weather.