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<usage><instructions>Parameters are specified in the URL.  Some functions require additional arguments which are also specified in the URL. See individual examples for how to use each function.</instructions><functions><func><name>list_files</name><params><param req="false" key="ts">Epoch timestamp to center list around.</param><param req="false" key="drng">Date range.  How many days to include in the list?</param></params><examples><example>?func=list_files</example><example>?func=list_files&amp;ts=1188637200</example><example>?func=list_files&amp;ts=1188637200&amp;drng=14</example></examples></func><func><name>list_times</name><notes>Exactly like list_files except the returned list is timestamps, not file names.</notes><params><param req="false" key="ts">Epoch timestamp to center list around.</param><param req="false" key="drng">Date range.  How many days to include in the list?</param></params><examples><example>?func=list_times</example><example>?func=list_times&amp;ts=1188637200</example><example>?func=list_times&amp;ts=1188637200&amp;drng=14</example></examples></func><func><name>list_values</name><notes>It is not wise to request large data sets through xml.</notes><params><param req="false" key="file">The name of the NetCDF file to read.  No path information required.  If not specified, reads the most recent data file.</param><param req="true" key="var">The variable for which to return data.</param></params><examples><example>?func=list_values&amp;file=scb_das_2007090115.nc&amp;var=depth</example><example>?func=list_values&amp;file=scb_das_2007090109.nc&amp;var=zeta</example></examples></func><func><name>list_variables</name><params><param req="false" key="file">The name of the NetCDF file to read.  No path information required.  If not specified, reads the most recent data file.</param></params><examples><example>?func=list_variables&amp;file=scb_das_2007090115.nc</example></examples></func><func><name>list_dimensions</name><params><param req="true" key="file">The name of the NetCDF file to read.  No path information required.</param><param req="false" key="var">The variable for which to return dimension information.</param></params><examples><example>?func=list_dimensions&amp;file=scb_das_2007090115.nc</example><example>?func=list_dimensions&amp;file=scb_das_2007090115.nc&amp;var=zeta</example></examples></func><func><name>get_data</name><params><param req="true" key="file">The name of the NetCDF file to read.  No path information required.</param><param req="false" key="ts">If file cannot be specified, a ts parameter may substitute.</param></params><examples><example>?func=get_data&amp;file=scb_das_2007090115.nc</example><example>?func=get_data&amp;ts=1188658800</example></examples></func><func><name>plot_var</name><params><param req="true" key="file">The name of the NetCDF file to read.  No path information required.</param><param req="true" key="var">The variable for which to plot.</param><param req="false" key="depth">If required, the depth (as an index) of the layer.</param></params><examples><example>?func=plot_var&amp;file=scb_das_2007090115.nc&amp;var=zeta</example><example>?func=plot_var&amp;file=scb_das_2007090115.nc&amp;var=salt</example><example>?func=plot_var&amp;file=scb_das_2007090115.nc&amp;var=salt&amp;depth=13</example></examples></func></functions></usage>