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Lent, P. C.

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E7.9- 11. 0.8
BI-MONTHLY PROGRESS REPORT -- 133
UNIVERSITY OF ALASKA
ERTS PROJECT 110-7
SEPTEMBER 30, 1973
A. TITLE OF INVESTIGATION: Application of ERTS-1 imagery to the study of
caribou movements and winter dispersal in relation to
prevailing snowcover.
B. PRINCIPAL INVESTIGATOR/GSFC ID: Peter C. Lent/U682
C. PROBLEMS IMPEDING INVESTIGATION: None.
D. PROGRESS REPORT:
1. Accomplishments during the reporting period: Detailed ground
truth data on vegetative characterization were obtained at
eleven sites comprising caribou range in northeast Alaska.
~r Data for each site include'density, composition and size of
trees (if any), percent cover, composition, and browse index
(r- for tall shrubs, percent cover, and composition of low ground
a-4 cover, soil samples, and aerial photos of test sites. Test
J-n U sites were pre-selected for uniformity of vegetation through
3o analysis of existing aerial photography and arial reconnaissance.
Data were obtained at the following sites:
N a. Open spruce forest area southwest of Vettatrin Lake
6829N;14508W
b. Wet lowland birch-willow shrub area south of Vettatrin Lake
u 6829N; 1 4508W
4e. Open spruce forest area southeast of Old John Lake
S~U01 6802N;14454W
> U
d. Open spruce forest area in the Junjik Valley
U) a 6823N;14538W
r- i -I
) m b. Treeless bog in the Junjik Valley
t- 1 r 6824N;14537W
0 0 f. Upland birch-willow heath south of Windy Lake
- m 6801N;14511WSl-4 H.
S0 g. Dry lowland birch-willow shrub area on a peninsula of
SlU Q Old John Lake
0 o 6804N;1 445 8w
" Lu h. Alpine tundra area southwest of porcupine Lake
6847N;14632W
- i. Upland birch-willow heath near the headwaters of
Hi;> Deadman Creek
a0 H 6821N;14555W
H ;3;0 F
https://ntrs.nasa.gov/search.jsp?R=19740002234 2020-03-23T14:14:56+00:00Z
j. 1969 spruce forest burn area in the lower Sheenjek Valley
6649N;14422W
k. Unburned closed spruce forest area in the lower Sheenjek
Valley
6649N;14424W
2. PLANS FOR NEXT REPORTING PERIOD: CDU compatible tapes will
be produced for selected portions of Spring 1973 ERTS scenes.
These CDU tapes will receive preliminary analysis on the CDU
to determine the approximate density levels present. Next, a
digital printout will be produced and analysed to determine
capacity for consistent differentiation between snowcover dist-
urbances caused by caribou winter feeding activity, undisturbed
snowcover, and actual bands of animals, Additionally, the
spectral character of each feature will be defined as precisely
as possible from ERTS MSS digital data. Similar procedure will
be followed for the interpretative application of vegetation
data obtained during the past summer. Analytic goals will be
evaluation of capability for consistent differentiation between
open spruce forest, closed spruce forest, upland birch-willow
heath, lowland birch-willow, treeless bog, alpine tundra, and
recent forest fire areas. After obtaining a definitive statement
of differentiating capability and multispectral density chara-
teristics for each feature, feature enhanced displays will be
produced on the CDU for use in feature mapping.
E. SIGNIFICANT RESULTS: None
F. PUBLICATIONS: None
G. RECOMMENDATIONS: None
H. CHANGES IN STANDING ORDER FORM: None
I. ERTS IMAGE DESCRIPTORS FORM: Attached
J. DATA REQUEST: September 30, 1973
1
ERTS IMAGE DESCRIPTOR FORM
(See Instructions on Back)
DATE . -. \' NDPF USE ONLY
PRINCIPAL INVESTIGATOR ? e- - C. _--- NID . . .
GSFC _U_ i
ORGANIZATION ,C, Y oo ) A -\ .\E ,\\ Ree.. \r
PRODUCT ID FREOUENTLY USED DESCRIPTORS*
(INCLUDE BAND AND PRODUCT) \ Ro DESCRIPTORS
89 o 73 M v Fo .ek 4e oas -eA
*FOR DESCRIPTORS WHICH WILL OCCUR FREQUENTLY, WRITE THE DESCRIPTOR TERMS IN THESE
COLUMN HEADING SPACES NOW AND LISE A CHECK (,/) MARK IN rTHE APPROPRIATE PRODUCT
ID LINES. (FOR OTHER DESCR!PTORS, WRITE THE TERM UNDER THE DESCRIPTORS COLUMN).
MAIL TO ERTS USER SERVICES
CODE 563
BLDG 23 ROOM E413
NASA GSFC
GREENSELT, MD. 20771
301-902-5405
GSFC 37-2 (7/72)


Application of ERTS-1 imagery to the study of caribou movements and winter dispersal in relation to prevailing snowcover

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