Ocean Waters and Atmospheric Gases:

• The principal aims of the individual assignments are as follows:
• to explore the variations in global seawater surface temperatures.
• to evaluate controls on surface seawater salinity.
• to determine the characteristics that define and distinguish water masses.
• to investigate annual variability in sea ice production and iceberg calving. 
• to explore anthropogenic changes in atmospheric levels of carbon dioxide.
• to examine seasonal and temporal development of the Antarctic ozone hole.
• The overall objective of these assignments is to demonstrate the spatial and temporal variability in various characteristics of the oceans and atmosphere that are closely related to climate.

• This set of exercises comprises
• Required exercises:
• Ocean Temperatures (due October 24)
• Ocean Salinity (due November 4)
  
• Atmospheric Ozone (due Novemeber 11)
  
• The exercises on oceanic characteristics that are not available are:
• Oceanic Water Masses
• Sea Ice and Icebergs
• Carbon Dioxide
• Brief instructions for accessing oncourse are given on the preliminary exercise page (go here ). 

• News November 6: The hints for the Ozone exercise have yet to be activated. Apologies for the delays.
• I will post any announcements, changes, modifications, updates or suggestions here.
• If any of the sites become accessible, I will provide information about alternatives or additions here.
• If you encounter any difficulties with access to any of the sites please notify me by email ( simon@indiana.edu ) and I will attempt to resolve problems, or suggest other options as soon as possible.

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Department of Geological Sciences, 
1001 E. Tenth Street, Bloomington, IN 47405-1403
Phone: (812) 855-5582  Last updated: 6 November 2002
Comments: simon@indiana.edu
Copyright 2000, The Trustees of Indiana University