http://chain.physics.unb.ca/chain/ always 1.0 http://chain.physics.unb.ca/chain/pages/about/ monthly 0.5 http://chain.physics.unb.ca/chain/pages/cadi/ monthly 0.7 http://chain.physics.unb.ca/chain/pages/data_availability hourly 0.9 http://chain.physics.unb.ca/chain/pages/data_download monthly 0.9 http://chain.physics.unb.ca/chain/pages/gps/ monthly 0.7 http://chain.physics.unb.ca/chain/pages/rules monthly 0.7 http://chain.physics.unb.ca/chain/pages/stations/ monthly 0.7 http://chain.physics.unb.ca/chain/people/show/personnel monthly 0.2 http://chain.physics.unb.ca/chain/people/show/scienceteam monthly 0.2 http://chain.physics.unb.ca/chain/publications monthly 0.7