The GEOS trend viewer is used to display the PAM trend information and plume data of chemistry. 

Components:

     1.   Menu: switch between different control panel.           

     2.   PAM Trend panel: choose site from list, select type of trend, select chemistry and PAM type from list when you choose    'All Trends', 'Standard', 'Baseline' and  'Trend'. Click 'Go!' button to load PAM trend summary information. Then click well icon to load PAM graphic.

           PAM information is shown  on top of map adn in summary  table.

          Click well and display PAM graphic

    3.   Plume: select analyte and event date then load plume information. Click '-' or '+' to adjust transparency of plume image.

            Display plume information on the map.

    4.   Tools: 

         4.1   Looking for address: Stype in U.S. address and zoom to found location.

         4.2   Draw and Select: Sdraw cirlce and select wells. Click 'Start', then click map, drag the red box icon and adjust the distance, then release button. The circle is drawn and wells in the circle are selected. The list of wells are shown on left panel. Double click the red point icon and disable tool 'Draw and Select'.

            The automatically build  wells list. Click well and zoom to selected well.

        4.3   Measure Distance: calculate the distance of the path. Click 'Distance' button, click map and draw a path.

            Then the distance of the path is calculated and displayed on left panel.

        4.4   Measure Area: calculate the area of polygon.Click 'Area' button, click map and draw polygon.

            Then the area of polygon is calculated and displayed on the left panel.

       5   Others: open/close site inforamtion and plume information.