There are no author-identified significant results in this report

Matson, M.

Mcginnis, D. F.

Wiesnet, D. R.

English

NASA Technical Reports Server

QUARTERLY REPORT January 18, 1980 
8, 0 0.6 8,
'Made available under NASA sponsorshP 
nt i teistoo 
3smhtoq ol Eirth Resouces SUrvey 
Plogrm falitRoq 3110 V,ho IIa APPLICATIONS OF HG &1 DATA 
ior 4w use mWd0 therwWl, 
TO 
SOIL M4OISTURE SNOW 
AND 
ESTUARINE CURRENT STUDIES
 
(flO-1068 AVPITCATION Or liCMM? DATA> TO NBO-18517]SOILNOISTURE SNOV-AND ES2UADINE CUIEENT
STUDIES Quarterly Report (National Oceanic 
and Atmospheric Administration), 4 p nclas 
_HC A02/MF A01G 
__CSCL081 G3/43 00068 , 
Donald R. Wliesnet, Principal Investicator 
David F. McGinnis, Associate 
Michael Matson, Associate 
NOA /NESS/ESG
 
World "leather Building 
Room 810 
Washington, D.C. 20233
 
(301) 763-8036 
Identification Number - HCM-045 
RE C -VD 
JANN i98'O 
IS1902.6 
1-ypi .W 
https://ntrs.nasa.gov/search.jsp?R=19800010243 2020-03-21T20:07:20+00:00Z
A. 	Problems
 
The aircraft data taken coincident with the HCMN satellite on
 
June 13, 1979 were received in early October. Unfortunately the data
 
were contaminated with so much noise that any usefu, fnformation con­
tained in the data was lost. Images from both night and dayai=Taft,
 
flights were sent to Locke Stuart for his evaluation. A request to
 
have a special priority placed on the two HCMM 6/13/79 overpasses of
 
our Luverne test site resulted in further disappointment. Neither tape
 
could be read on first attempt. A second attempt will be made by
 
avoiding system constraints, but little chance is given for 
success.
 
Overall, aircraft and satellite data in support of our extensive
 
6/13/79 ground survey at Luverne have proved useless and the absence
 
of such data seriously restricts the soil moisture portion of our study.
 
B. Accomplishments
 
HCNM computer compatible tapes (CCT's) have been reformated to
 
fit the VIRGS (Visible and Infrared Spin Scan Radiometer Interactive
 
Registration and Gridding lystem) at NESS. The VIRGS is a man-machine
 
interactive system that permits an individual to manipulate data to
 
achieve the optimal visual display. Plans are to acquire hard copy
 
equipment that will produce high quality color images.
 
On December 4 and 5, 1979, the Data Collection Platform (DCP) was
 
successfully installed at our Luverne test site. Unfortunately the
 
soil moisture gauge had filled with water, creating a short circuit in
 
the electronics of the gauge. Repairs should be completed by early spring
 
to permit reinstallation in May. Information on battery voltage and
 
-2­
temperature are currently being received every 3 hours from the site.
 
C. 	Significant Results
 
None
 
D. 	Publications
 
None
 
E. Recommendations
 
Ordered CCT's, unless placed on a priority basis, are still as
 
much as 7 months in delivery. A reduction to a four-week turn around'
 
would be desirable.
 
F. 	Funds Expended to Date
 
Balance of funds 4.6 k
 
Spei t this period 2.6
 
Funds remaining 2.0 k
 
G. Data 	Utility
 
Eight CCT's ordered. Data quality essentially unchanged from
 
last reporting period. Various types of noise in the data have been
 
brought to Locke Stuart's attention.
 
H. Future Plans
 
We expect work to begin on repairs of the soil moisture guage.
 
HCMM data will be screened in an attempt to find a replacement for
 
the unavailable 6/13/79 data at the Luverne test site. Imagery for the
 
Cooper and Potomac Rivers will be examined and CCT"S ordered to examine
 
the tidal fluctutions of these estuaries.
 
I­
December 4j 1979 -OA/S33:DFM 
Dr. John C. Price 
Code 913.&
 
'NASA/Goddard Space Flight
 
Center 
Greenbelt, Maryland 20771
 
Dear Jouin, 
We would hereby like to.make a priority request for HCQ data of 
Luverne test site on June 13, 1979. On June 13, 
a major collection of 
- soil moisture and meteorological data was accomplished at our Luverne,
Minnesota, test site. The weather conditions were ideal for both 
night (early morning) and day (early afternoon) overpasses of the
 
IH-IG4 satellite. Cloudless skies prevailedmuntil 4:30 pm LDT--well
 
after the second HICEla overpass.
 
All ground-collected data have been analyzed and are ready tobe evaluated with the HC.M-i data. No formal request has been pre­
viously for the data because of its expected receipt about
 
October 1, 1979. Unfortunately, conversations with Locke Stuart
 
indicate that because of excessive yaw in the spacecraft, data
 
collected after April 1, 1979 will not be processed until the compu­
ter algorithms is rewritten to accomodate the excessive yaw. -Stuart 
stated that the new algorithm will not be ready until approximately
March 1980. Such a delay in processing the 6/3/79 data-prevents U 
from meeting our contract obligtions. 
W'e therefore request that NASA/GSFC place a special priority-on

processing the two satellite overpasses of our Luverne site. Such 
processing should include tapes, one for each overpass and.one
 
combining the two for thermal inertia studies.
 
Sincerely,
 
Donald R_ Wiesnet, Acting Director.: 
Environmental Sciences Group 
OA/S33:McGinnis:Smithe:8036
 
.1 9 


Application of HCMM data to soil moisture snow and estuarine current studies

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