to six hours, the RUSS units collect raw data on several different
parameters including: temperature, turbidity, dissolved
oxygen, pH, %
oxygen saturation, and electrical
conductivity. These readings are then posted to our website on
a weekly basis for access by students and teachers across the country.
Using any simple spreadsheet program, this data can be transformed
into graphs to help visualize the change of each parameter over time
versus depth. Currently, data are available in three different formats:
weekly RUSS data comes in two forms, HTML and Excel. Webpage
(HTML) data lists the data collected during the chosen week on
a simple webpage. This form is recommended for easy access for
people who do not have a spreadsheet program or for those who
may have difficulty downloading through a firewall. The weekly
data is also available in Excel
are compressed files containing a complete listing of the data
collected by the RUSS on the specified lake. The data is stored
as comma separated values (csv files) which can be read by spreadsheet
and database applications.
Unfortunately, RUSS units aren't on-line every day of the year. Units
are occaisonally off-line for service, or may be removed from some
sites seasonally. This page will show you the current status of the
Assurance and Quality Control (QA/QC) protocols are
essential to WOW. We have gone to great lengths to assure the accuracy
of our data. The QA log will alert you to corrections or deletions
that have been made to the data files as a result of these protocols.
Tools for Data Visualization
project is dedicated to bringing innovative ways to learn about the
scientific world. The following tools are interactive visualization
programs that can be used online to view specific types of data,
manipulate variables, or even see changes over time. To use these
program, all you need is a browser that runs Java version 1.1 applets.
Netscape and Internet Explorer
versions 4 and higher have this capability. If you are behind a firewall
the standalone Profile Plotter and Color Mapper programs may be unable
to communicate with our data server. The DVTools versions use a different
method to get the data and should not have any trouble with firewalls.
Plotter is a program that displays interactive line
graphs. Users can choose from a number of different variables
to plot and then run the program to see how those variables
change over time. Simple plotting of a variable versus depth
can show how the location of the thermocline varies with time
and can illustrate events such as spring and winter turnover
or even year to year variability. This program is meant to
be used with current RUSS data and runs online.
a visually appealing program which takes data and creates color
maps combined with line plots for any 2 RUSS parameters for
any lake. It steps through individual data profiles to create
animations as per the Profile Plotter.
a collection of programs -- it includes the Profile Plotter,
the Color Mapper, and a third program, the Depth vs. Time Plotter
(DxT). The DVT Toolkit can be run on-line, or downloaded and
run without an Internet connection.