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Computing Facility
In
August 2004, Dr. Sultan joined the faculty of
Western Michigan's Department of Geosciences
as chairman. Using
start up funds from WMU, Sultan and
his research team developed a state of the art computation and remote sensing
facility. The newly-developed Earth Sciences
Remote Sensing (ESRS) facility
is being used for conducting RS analysis and GIS applications, as well as
development and distribution of geologic databases.
The
facility is a distributed system consisting of a network of
three servers (Windows), and
ten workstations. The three servers provide support for web
access, file service, database and ARCIMS services.
Individuals operate from
seven Xeon powered workstations, and two laptop computers,
running a combination of Windows and Redhat Linux. These
machines and the printers are networked together on a 100 TCP/IP switched
network to allow sharing of all of their resources. This network is linked into
the Internet through WMU’s backbone.
The
network servers have over 9 TB of disk space
between them. Each of the PCs has a 2 19‑in. monitors,
a minimum of 1GB of memory, and local storage ranging
from 250 to 500 GB of local
storage. One laptop is a Pentium 4 machine with 512MB of memory and 40 GB hard
drives; the other laptop is a Pentium system with a 4GB hard drive.
Two
14GB Exabyte 8‑mm tape drives are available for importing and archiving data.
For importing hard copy data, the facility has a digitizing tablet (Calcomp
Drawing Board III) with a 3‑ft x 4‑ft active area, a 2400 dpi large format (40
in. wide) IDEAL color scanner, a 500-dpi large-format (38 in. wide) black-and-white
scanner, a 3200 dpi 11x17” flatbed scanner for transparency and opaque
originals, a slide scanner, and a smaller (8 in. wide) color scanner. Digital
Data can be read from CD, DVD, and 8mm and SDLT tapes. Multiple CD-RW
and DVD+R drives are used for data archiving on CD-ROM
and DVD.Output is handheld by a
networked Xerox Phaser color laser printer,
a networked Lexmark BW laser printer, a large format
(42” wide) HP designjet 500PS color printer, a SPARC E laser printer, a Polaroid
HR-6000 film recorder, an inkjet color printer, and a Kodak dye-sublimation
printer. The major computational software packages used are ENVI, PCI Geomatica, and
ARC/INFO. ENVI is a flexible image-processing package on which all of the image
manipulation is done. PCI is being used for extraction of elevation data from
satellite and aerial photography. ARC/INFO is a GIS package used to store and
help interpret non-image data. The use of ARCSDE enables querying of
our Oracle databases directly from ARCIMS. GMS and WMS packages are used for ground water
flow and surface runoff modeling in addition to the existing software packages.

Receiving
Station
In 2004, the Department of Geosciences
acquired a
real-time
receiving station
which downloads data from several satellites.
To find pictures of the installation of the dish atop Everett Tower and for more
detailed information please visit the following link:
Receiving Station
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ASD Fieldspec Spectroradiometer

Also using startup funds from WMU, the ESRS facility is
acquiring a hand-held VNIR spectroradiometer to
further develop their research interests and applications in the general area of
remote sensing. The spectroradiometer is hosted in the
Earth Sciences Remote Sensing Facility
and is used by the participant investigators in their
respective disciplines. It is used for training
students across the campus.
The spectroradiometer is a portable instrument, designed to take spectral
radiance, irradiance and reflectance measurements in the 350 - 2500 nm
spectral range. We have acquired optics for use in both
aquatic and terrestrial studies.

GEOWALL
The
ESRS facility is also setting up a new
GeoWall at their new home at WMU.
A GeoWall is an eight foot by six foot rear projection passive
stereo wall, which enables users to examine subsurface models in a 3-D
environment.
Polarized stereo images are projected onto the screen from separate projectors.
The user
sees the image in three dimensions while
wearing appropriately polarized glasses. |