Simplified residual
    c.f.
      monitor-plot, central and upper-right diagrams, black curve.
    
    Glossary
    
    Since the plot of the latest 31 days is updated on the
    current day, only a reduced range of data types are available for
    reduction.
    In particular, we don't have the Atmacs pressure effects, so we work
    with the local air pressure.
    
    As of May 1, 2014, we occasionally update the tide model using a
    recent weekly
      updated tide model. 
    List of model updates: 
       May 01, 2014
       May 18, 2014
       Feb 05, 2015
    This is subject to revision, including reverting of doubtful
    solutions. A number of days of observation is required to inspect
    the performance. 
    
    
    
    .bye