Department of Earth Science |Northeastern
Daily Objectives #17
(March 17, 2009)
end of today's class, you should be able to do the following:
and Cross Sections
w Review: List the three major
environments of deposition of glacial materials, describe the sedimentary
deposits they leave, and tell whether each is most likely to be an aquifer or an
w Explain these terms:
lacustrine moraine varve
Ground Water Modeling:
- Describe the components of a conceptual
model, the first part of constructing a ground water model:
- Boundaries (identify
location and type)
- Stresses (this
usually refers to pumping wells and recharge from infiltration)
(We will probably do this next time.)
- Initial conditions
(water levels) (We will probably do this next time.)
- For our study area, describe each of
the above components of the conceptual model.
Tuesday after break:
one-page description of the geology of the study area. (Refer to your
cross section, and examine cross sections of other students in class
today to get a more full, 3-D picture of the system.)
Write a 2-3
paragraph description of the conceptual model. At this point, it
should include a description of the hydrostratigraphy and the boundaries
to the flow system (we will add the other components next time).
Read the instructions for making a grid and
constructing your own model. Download and read these two documents:
Steps and Building Your Model
Ground Water Modeling:
You may wish to examine the files below as a
sample of a GGW model. To get each file, double click on the link and select
"Save File", then save each file in a place where you can find it again. If
that doesn't work, then just right click on the link on this page and select
"Save Target As". Remember where you save it to, so you can find it again!
- Ground Water Modeling Software: Download and install
a copy of Dr. Steven Esling's program,
Graphic Groundwater (GGW). First, download Version 3.47 and install
it. Then download Version 3.52; it is simply an update and not the full
version, so you'll need to install 3.47 before 3.52 will work. Open up and
run the sample model (see the links below).
(1) GGW Model
for the Holiday Hills Community (file extension ".ggw")
(2) Map Image
for Holiday Hills (file extension ".bmp")
(3) Grid for
this model (extension .xls) (you don't need this one to run the model, but
you might want to look at it for your own information).
Department of Earth Science | Northeastern Illinois University
Copyright 2009 Laura L. Sanders.
Last updated March 17, 2009.