and drag the mouse down and right to zoom in,
or drag it up and left to zoom out.
Or press the Rescale to fill button to rescale
the plot to show all of the current data.
The > and <
buttons will advance/retreat to the next/previous profile in the
The >> and <<
buttons will automatically move through the data at the rate you
set with the SPEED slider.
you are at the beginning or end of the data, the affected directional
buttons will be disabled.
can select a different lake from the drop-down list of Lake Access
the date slider to quickly select a particular
date. You will get the first profile after noon on that date.
can select which parameters to plot.
Clear between plots is not selected, each plot will be
drawn over what is already displayed. This can be useful to see
the range of values between certain dates. It can also make a
big mess. You can clear the graph by changing any of the parameters
or the lake (even if you change them back before hitting the Get
this Profile button).
Get this Profile when you are ready to draw the new plot.
see the actual data from the profile that is currently showing:
you want to copy the data to your own file:
About the applet:
The Profile Plotter allows a user to make plots of data with depth.
Limnologists (folks that study lakes) typically display data in
the form of lake profile plots, in which the vertical axis (the
Y-axis) represents the lake from top to bottom, and the horizontal
axis (X-axis) displays the magnitude of a variable.
Because we acquire four to six profiles per day, we developed the Profile
Plotter to "step through" the data sets and observe
how factors such as temperature change on a daily or seasonal
basis. The Profile Plotter contains a control panel that allows
users to select a lake, a date, and which variables to plot. The
key feature of the Profile Plotter is the ability to animate the
profiles. The single and double arrow VCR controls in the center
of the control panel allow the user to step forward or backward
through individual data sets (single arrow), or let the program
automatically step through the data sets (double arrow). In the
automatic option, the user can set the rate at which the 'movie'
program was adapted and extended from Ptplot 2.0
which is available under this agreement.
If you are having trouble running this applet check out our
Java troubleshooting page.