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Coker, A. E.

Cordes, E. H.

Higer, A. L.

Wimberly, E. T.

English

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https://ntrs.nasa.gov/search.jsp?R=19750002468 2020-03-23T03:23:04+00:00Z
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1
SURFACE HATER MODELING EVERGLADES WATER EASIH, FLORT:^A E7.4-
	 0.8 14.
E. r. Wimberly
A.L. Hager
E.H. Cordes
A. 1. Coker
U.S. Geological Survey
901 South Miami Avenue
Miami, Florida 33130
(974- 10814) SURYACB M4TER MODELING
F.vLEGLADES WATER BASIN, PLOY.IDA
Bimoethly Progress Report, 1 Mdy -
30 J^Iu. 1974 (Ge010gica1 Survey) 4 p tiC
$3.25	 CSCL U8H
N75-10540
unclas
x3/43 00814
July 1974
Type I progress Report for period May 1, 2974-June 30, 1974
"Made available under NASA sponsorship
In the interest of early a;^i
seminatioo. Of Earth Recour^ _ :,
PrOgram q kiroa9Gop and Z:'+u. ca,n ;,i_il^py
for any use mode thereut -
Prepared for: 	 ia.-7aA
Goddard Space Flight Center
Greenbelt, Maryland 20771
v<E ESVEU
sr N90..'.t
1
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NASA TYPE I PROGRESS REPORT
(May 1, 1974 — June 30, 1974)
by
E. T., Wimberly, A. L. Iiiger, E. H. Cordes, and A. E. Coker
a. Title: Surface Water Modeling
Everglades Water Basin, Florida
b. GSFC I.D. No. of P.I.: 1414
c. A list of items which have hindered the progress of the
investigation follows:
1) as stated in the last ERTS I progress report, there is a
need for additional DCP's for deployment in the Everglades
Basin to acquire the additional data needed to complete a
water budget analysis. There is also a need for spare
program boards to allow the present stations to maintain
continuous operations.
2) during this reporting period, fires have burned uncontrolled
in the Big Cypress Swamp, the Everglades National Park, and the
water conservation areas. In Water Con. 6-i`vation Area 3A, some
of the supports for the structure containing a DCP and related
equipment were burned away leaving the structure hanging pre-
cariously. Fortunately the DCP which was closer to the fire
than otter equipment was insulated by three inches of sand and
was unharmed.
3) a station in Water Conservation Area 2A has been shot by
gunfire several times. The DCP has not been hit but recorders,
rainfall reservoir, and shelters have been damaged.
4) imagery provided to user 1414 has been arriving in Miami
intermittently.
d. 1) during the reporting period, three new stations have
been installed to monitor precipitation and upstream and
downstream water stage at water controls. The head difference
between the upstream/downstream stage status are used to
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calculate discharge through the controls. A sketch of one
of the stations is shown in figure 1. The station shown in
figure 1 is operated in cooperation with the U. S. Corps of
Engineers and located at S-12-C, a water control structure
which regulates flow from Water Conservation Area 3A into the
Everglades National Park. Installation of the station at the
structure involved the use of over 600 feet of multiconductor
cable in order to link the digital, water-stage recorders
with the DCP. The DCP is located atop the control structure
about 15 feet above the ground. The twenty conductor cable
is inside aluminum conduit above ground and inside plastic
polyvinyl conduit below ground. The control structure provides
a good location for th^. DCP because it provides some protection
from vandalism and is about halfway between the two recorders.
The housing for the DCP is strapped tc the guard rail atop
the control structure with the antenna mounted atop the housing.
Included in the housing are the battery power, a rain gage,
an environmental monitor, and the DCP. The environmental
monitor contains an electronic counter which is linked between
the rain gage and the DCP to count the tips by the rain gage.
A rainfall receiver is mounted to one side of the housing.
Rainfall is fed to the rain gage inside the housing by a tube.
In addition to the 3 upstream/downstream and precipitation
stations, 5 more stations are near completion in the Everglades
National Park. These stations will monitor rrecipitation and
water stage when they are installed but will be set up to add
other parameters. The environmental monitor to be installed
at each stnt'.on can monitor other parameters as well as rainfall.
The environmontal monitor was designed by Ed Cordes of the
Miami of:ice of the U. S. Geological Survey. Cordes is also
working on an improved solid state clock to be used with the DCP.
More work on rectification of ERTS imagery is being done with
the Bendix Corporation. The effort is aimed at quantifying
volumes of water with imagery.
f. The following report has been approved for the third ERTS
symposium, NASA/Coddard Space Flight Center and more recently
it was approved to be published in the proceedings of the
Eleventh Space Congress: "Water Management Models in Florida
from I;TS-I Dtta" by A. L. Higer, A. E. Coker, and E. 11. Cordes.
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Figure 1.--Sketch of ERTS DCS station at water control structure
S-12-C near Riami, Florida.
I


Surface water modeling Everglades Water Basin, Florida

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