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Cordes, E. H.

Higer, A. L.

Wimberly, E. T.

English

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"(Wade avafable under NASA sponsorship E7.3
in the interest of early and wide dis-
semrnination of Earth Resources Survey /3/3/
Program information and without liability
for any use made thereof."
DEVELOPING A DATA RELAY NETWORK FOR MONITORING HYDROLOGIC
CONDITIONS IN SOUTH AND CENTRAL FLORIDA
'E73-10491) DEVELOPING A DATA RELAY N73-21327
NETWORK FOR MONITORING HYDROLOGIC
CONDITIONS IN SOUTH AND CENTRAL FLORIDA
Progress Report, 1 Dec. 1972 (GeologiCal Unclas
~Surv y) 9 p HC $3.00 CSCL 08H G3/13 00491
A. L. Higer
U.S. Geological Survey
Miami, Florida 33130
2 February 1973
Type I Progress Report for Period I December 1972 - I February 1973
Prepared for:
Goddard Space Flight
Greenbelt, Maryland
Center
20771
Or:ii-.al phtcgraphy may be purchased from:
Li):: a:)j;ia SCeter
1lti- and Dakota Avenue
Sioux Falls, SD 57198
Publication authorized by the Director, U.S. Geological Survey
9
https://ntrs.nasa.gov/search.jsp?R=19730012600 2020-03-23T02:40:56+00:00Z
ERTS Type I Progress Report
(for period of Dec. 1 thru Feb. 1, 1973)
By
E. T. Wimberly, A. L. Higer and E. H. Cordes
a. Title: Developing a Data Relay Network for Monitoring
Hydrologic Conditions in South and Central
Florida.
ERTS-1 Proposal MMC 272
b. GSFC ID No. of P.I.: I 414
c. (1) In December, ERTS-1 imagery of Lake Okeechobee
area was received in the Miami office of U. S.
Geological Survey. The imagery was taken on
November 16, 1972, one day after a cold front
passed through central and southern Florida.
The front cleared the cloud cover over the
site and the imagery was excellent (figures
1 & 2). However, the frame just below Lake
Okeechobee, which would have included the
Everglades watershed and Dade and Broward
Counties, was not available. On several
occasions, efforts were made by the U. S.
Geological Survey to obtain that particular
image from NASA.
I
MSS7 MSA ERTS E-1116-15231-7 
LAKE OKEECHOBEE 
figure 1 Imagery of the Central and Southern East Coast of Florida from the 
the 0.8 to 1.1 micrometer band. The white spots in the wet area 
of Conservation Area 1 are tree islands. The dark black rectangles 
in the agricultural area are fields which are intentionally flooded 
to prevent soil subsidence. 
2 
16 Nov 1972 MSS5 NASA 
MARINE TERRACES 
ERTS E-1116-15231-5 
LAKE OKEECHOBEE 
Figure 2 Imagery of the Central and Southern East Coast of Florida from the >' 
0.6 to 0.7 micrometer band. Turbidity patterns in Lake Okeechobee 
are evident with ground truthing and several synoptic images it 
may be possible to determine current patterns in the lake. The 
U.S. Army Corps of Engineers is interested in both turbidity and 
velocity determinations in the lake. This band also accents the 
marine terraces along the east coast of Florida. 
3 
The first run on the computer model of the water
management area is dependent on the distribution
of surface water in the Everglades watershed. That
complete imagery is needed if work is to continue
on water management modeling.
(2) A data multiplexing system, which is vital to
operation of the meteorologic stations, has not
been delivered.
d. Nine data collection platforms (DCP) are now
operating in Water Conservation Areas 1, 2, and 3.
Two stations are operating in the Shark River
Slough, Everglades National Park; one station
is operating in the Big Cypress Swamp. Locations
of the stations are shown in figure 3 and table 1.
Power supplies at all stations are being improved
by replacing the present dry-cell batteries with
nickel-cadmium wet-cell batteries. At present,
water level and precipitation data is being received
from DCP stations daily from only 0800 to 1200 and
2000 to 2400 (eastern standard time) To obtain
daily hourly coverage, the Mississippi Testing
Facility, Water Resources Division, U.S. Geological
Survey was contracted to build a memory device.
,--: Luc,
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Data Collection Platform- (DCP) -: 
Monitoring '$ tation
0 1 . 20-E
illB r~~~~~~ ~ ~ ~~~~~~~~~~~~~~~~~ ---. -' 0oNr 5i ~O ~0 m .
Figure 3.--Location map of the present data collection platform network.
%
Table 1
Locations of present (January, 1973) operating data collection platforms
GENERAL AREA
Everglades National
Everglades National
Conservation Area 3
if II
!1
Park
Park
II
lt
Miami
Big Cypress Swamp
Conservation Area
Conservation Area
I1 I1
1
1
Conservation Area 2
II II
PIATFORM I.D.
6256
6121
6321
6070
6236
6033
6252
6250
6313
6363
6362
6214
6141
LATITUDE
25*32 12"N
250 38'54"N
25*48'55"N
25058'24"N
26011'18"N
26010'57"N
25045'53"N
25*51'05"N
26*31110"N
26030' 00"N
26*26'55"N
26017'01"N
26016' 50"N
LONGITUDE
080047'06"W
080041'18"W
080043118"W
080040 ' 18"W
080032'09"W
080044 '13'W
080011'36"W
080058'50"W
080019'40"W
080013'15"W
080017'10'"W
080017 '54!'W
080025'10"'
MAP NO,
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
I
The memory device will work with the DCS to store
hourly data during the periods when ERTS-1 is not
in communication with the DCP's and a remote
receiving site.
e. Preprocessing of ERTS-1 imagery of central and
southern Florida by Stanford Research Institute
has been accomplished.
Water-level and precipitation data-collection
platforms have been installed in the Everglades
water basin. The data from these stations are
relayed to the Miami office of the USGS via a
NASCOM line. The data are then analyzed and
disseminated to water-management agencies such
as the U.S. Corps of Engineers and the Central
and Southern Florida Flood Control District.
The data are transmitted in daily, weekly, and
monthly reports to other governmental agencies.
These agencies rely on the data to manage the
water resources in a 1400-square-mile area.
Through the ERTS imagery and Stanford Research
Institute, we are able to delineate wetlands or
agriculture areas of central Florida as shown
in figure 1.
7
In figure 2 we are able to detect turbidity
patterns in Lake Okeechobee and to delineate
marine terraces north of Lake Okeechobee.
f. - k. Nothing to report.
8


Developing a data relay network for monitoring hydrologic conditions in south and central Florida

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