THE BATTALION
WEDNESDAY, JULY 3, 19T4
Page 5
^1 Dam satellites... A&M developing orbiting water sensor
■H Satellites may soon predict went into space with the Skylab Their main tools are large the soil. the ground and catches the rellec- be accounted for in observations. some crops. Also these syste
Hfl floods, cron yields and runoff while mission. parabolic dishes strapped to spindly Harlan noted. “We know we can tions. This in turn is computed into “The applications of the techni- would allow us to monitor throi
Satellites may soon predict
i floods, crop yields and runoff while
telling us when and where to irri
gate and how to build dams.
- University of Kansas scientists
have joined TAMU researchers in
developing what they call a brand
new concept in environmental
monitoring. They have two com
plementing systems that basically
give readings on soil moisture. The
radar devices eventually have the
capability of being mounted on
satellites. A primitive version in fact
went into space with the Skylab
mission.
The two groups have joined
forces to spend the summer perfect
ing their devices on an A&M farm
by monitoring different soil types
and crop growths.
Dr. Cliff Harlan and Richard
Newton of the TAMU Remote Sens
ing Center and Dr. Fawwaz Ulaby,
director of the U. K. Remote Sens
ing Laboratory, head their respec
tive groups. The effort is aided by
NASA equipment operated by a
Lockheed Electronics crew.
Their main tools are large
parabolic dishes strapped to spindly
booms that range through specially
cultivated rows of maize, pulsing in
formation to monitoring crews in
nearby electronic vans.
The TAMU-NASA crew operates
a passive device that measures
naturally emitted heat radiation.
The amount of water in the soil
causes the dielectric constant (an
expression of electric properties) of
the soil to change. The sensors pick
up the change and convert it into
information on the water content of
t
New dean
or LA
announced
, Dr. Diane W. Strommer has
11 t ' 11 ' been named associate dean for stu
dent af&irs in the College of Liberal
Arts, announced Dean W. David
Maxwell.
• Dr. Strommer joined the
college’s administrative staff Mon
day, effective date of appointment.
tfZfMk I She succeeds Dr. Charles
TWMI McCandless, now director of
; academic planning and services in
fjjTAMU’s academic affairs division.
J ■ Most recently an administrator
; ||| and professor in Boston University’s
Hllpollege of Basic Studies, Dr.
| Strommer has taught and worked
i primarily on the East Coast.
I | > “Dr. Strommer has a diversity of
a It administrative experience, in tele-
j I vision, radio and university ad-
[: | ministration,” Maxwell said. “She
the soil.
Harlan noted, “We know we can
see relative changes in soil mois
ture. Now we are attempting to
measure how much water there is.
A less sophisticated version of our
thermo-microwave measuring de
vice on Skylab took 60 square mile
readings of soil moisture. Many of
these same KU students took soil
samples across Kansas that pro
duced excellent correlation with the
readings of the satellite.”
The Kansas group uses an active
system that sends a radar pulse into
the ground and catches the reflec
tions. This in turn is computed into
moisture information. Their meas
urements probe under the ground
to find the amount of water in the
root zone.
Ulaby pointed out that by using
the two systems in the same place at
the same time, “...it eliminates
doubt at the end of the project in our
findings. They’ve arranged three
fields each with three soil conditions
and three stages of vegetation. That
way surface roughness and vegeta
tion, which is 85 percent water, can
be accounted for in observations.
“The applications of the techni
que is vital,” claimed Ulaby. “We
could figure the runoff for dams ac
curately. This could save millions of
dollars on dams that are now being
overbuilt by as much as a factor of
ten. Measurements of irrigated
areas would tell when farm lands
dry out endangering crops. More
water could be released but only
when needed. This would conserve
water and use it more efficiently.”
Harlan added, “The amount of
moisture is important in planting
r
---
Dr. Diane Strommer
also has had experience in cur-
qriculum development and im
plementation.”
The new TAMU faculty member
received the B.A. at the University
of North Carolina, Chapel Hill, in
. 1962. Ohio State University
| awarded both the M.A. in English
and Ph.D. in Renaissance drama,
the latter in 1969.
; Dr. Strommer taught at an Oak
(•Ridge, N. C., junior college,
Chapel Hill and Ohio State. At Bos
ton, she was in charge of the basic
(division. Her TV program, “The
Woman’s Magazine of the Air,” won
? the North Carolina Broadcaster’s
Award of Excellence. She con-
! ceived, wrote and produced it.
Dr. Strommer was a textbook
| consultant for MacMillan Co. and
has a book on language and politics
ready for publication. She has done
j directing and stage management for
the Raleigh Little Theater.
She is married and has two chil
dren.
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some crops. Also these systems
would allow us to monitor through
clouds, day or night. A hydrologist
with soil moisture information could
accurately predict floods.”
This is the second step of a project
that began last year. NASA aircraft
and University of Michigan resear
chers took airborne readings over
100 miles of fields near Phoenix,
Ariz. where there was no moisture
change except for irrigation. These
results were compared with soil
samples. The project here is the
second step.
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