The author has identified the following significant results. The most significant finding has been the ability of the S-190B data to produce land use maps not far removed from the quality of high altitude aircraft photography generated maps

Alexander, R.

Lins, H. F., Jr.

English

NASA Technical Reports Server

URTA1N AND REGIONAL LAND USE ANALYSIS: 1 0 3CARETS AND CENSUS CITIES EXPERI~NT PACKAGE
(E75-10019) URBAN AND REGIONAL LAND USE N75-12398ANALYSIS: CARETS AND CENSUS CITIES
EXPERIMENT PACKAGE Monthly Progress
RePOrt, Jul. - Aug. (Geological Survey, Unclasest Va.) 4 p HC $3.25 CSCL 08B G3/43 00019
SKYLAB/EREP INVESTIGATION NO. 469
NASA Order No. T-5290 B
MONTHLY PROGRESS REPORT "Made available under NASA opnilf6lin the interest of e .e dis-
semination of Earth Rio :ces Sury
Program informatont abiity
for any use made th beoi."
Harry F. Lins, Jr.
U.S. Geological Survey
Geography Program ao
Reston, Virginia 22092
July-August, 1974
August 20, 1974
Principal Investigator NASA Technical Monitor
Robert Alexander John T. Wheeler
U.S. Geological Survey Technology Utilization OfficerReston, Virginia 22092 NASA-Manned Spacecraft Center
Houston, Texas 77058
Publication authorized by the Director, U.S. Geological Survey
https://ntrs.nasa.gov/search.jsp?R=19750004326 2020-03-23T03:13:17+00:00Z
United States Department of the Interior
GEOLOGICAL SURVEY
RESTON, VIRGINIA 220920
(1925 Newton Square East)
OFFICE OF THE DIRECTOR
October 24, 1974
NASA Scientific and Technical
Information Facility, Code KS
Washington, D.C. 20546
Mark for: T-5290B
Dear Sir:
Enclosed is one copy each of the Monthly Progress Reports
for Skylab EREP Investigation 469, dated Aug. 20 and.
Sept. 20, 1974, prepared under NASA order T-5290B and
sent to you as specified by that order.
Sincerely yours,
Priscilla W. Woll
Technical Publications Editor
EROS Program
Enclosure
URBAN AND REGIONAL LAND USE ANALYSIS:
CARETS AND CENSUS CITIES EXPERIMENT PACKAGE
Monthly Progress Report: July-August, 1974; August 20, 1974Investigation No. 469
a. Overall status, including problem areas and significant progress
to date:
a.l. CARETS 
-- Land use analysis: During the months of July and Auguitthe focus of the Skylab research was the completion of the special reportrequested by NASA/JSC and the preparation and presentation of a Skylab'
related paper at the International Society of Photogrammetry's Commis-
sion I Symposium on Primary Data Acquisition in Stockholm, Sweden. Inresearch aimed at determining and demonstrating the use of the S-190 B
Earth Terrain Camera to detect land use patterns, changes, and associated
environmental impact and to compare the S-190 B with other remote sensingdata sources, the land use of portions of Fairfax County, Virginia was
rmapped using data from Skylab, ERTS, and high-altitude aircraft photo-graphy. A Skylab Level III land use map of Fairfax City was comparedto a field checked aircraft generated land use map. Using a systematic
aligned sampling strategy an accuracy level of 83 percent was completedfor the Skylab map with 42 percent of the error attributed to the mis-
classification of unimproved open space, probably resulting from limit-ations in film spectral resolution and camera spatial resolution. Inthe same comparison, 130 hectares of wooded residential land were found
to be misclassified as forest on the Skylab map. In a Level I com-
parison of ERTS and Skylab derived land use maps to high-altitudephotographic data, the accuracy of the Skylab data was found to be 88
-percent, with the error evenly distributed among urban, agriculture,
and forest categories. The ERTS interpretation was found to have only
a 65 percent accuracy.
a.2. CARETS 
-- Land use climatology: No change; awaiting S-192data products
a.3. Census Cities: No change.
b. Recommendations concerning decision and/or actions required to
ensure the attainment of the experiment's scientific objectives:
No change.
c. Expected accomplishments during the next report periods:1) Begin work on the CARETS 
- Land Use Analysis section of theSkylab Final Report.
2) Continue metropolitan land use analysis and change detection
of EREP data in the Census Cities investigation.
3) Solicit responses from users on the applicability of Skylabdata to state and local land use planning problems.
d. Significant results and their relationship to practical applicationsor operational problems: The most significant finding to date has
been the ability of S-190 B data to produce land use maps not far
removed from the quality of high-altitude aircraft photography generated
maps. Further datails and examples are contained in the report just
completed "Selected Applications of Skylab High-Resolution Photography
to Urban Area Land Use Analysis" by Robert H. Alexander and Harry F.
Lins, Jr.
e. Summary outlook for the remaining effort to be performed: No change.
f. Travel summary and plans: From August 27 to 29 Harry Lins par-
ticipated in the International Society of Photogrammetry's Commission I
SyTmposium on Primary Data Acquisition. The meetings, held in Stockholm,
Sweden, primarily dealt with sensor capabilities and geometric properties.
Lins chaired the session on remote sensing and presented the findings
obtained during the special study requested by NASA/Jsc.
Approved:
Robert H. Alexander
Principal Investigator
Skylab/EREP Investigation No. 469
URBAN AND REGIONAL LAND USE ANALYSIS:
CARETS AND CENSUS CITIES EXPERIMENT PACKAGE
Monthly Progress Report: September, 1974
Investigation No. 469
a. Overall status, including problem areas and significant progress
to date:
a.l. CARETS -- Land Use Analysis: No change
a.2; CARETS -- Land Use Climatology: No change; awaiting S-192
data products.
a.3. Census Cities: Since the last reporting period members of
the Census Cities team have re-scheduled their tasks to the com-
pletion of the project in light of data actually received. They
now feel that they should complete their investigations of six
urban test sites, and section of the final report by June, 1975.
Photo enlargements are currently on order for use as interpre-
tation bases and all projected tasks have been outlined and
assigned to project personnel. Five urbanized area sites (New
Haven, Pontiac, Washington, Phoenix and Cedar Rapids) will be
analyzed in Washington using Skylab 3, S190B photos, except for
Cedar Rapids, the study of which will utilize the Skylab 4, S190B
high-resolution CIR photography. The San Francisco site will be
analyzed by USGS personnel in Menlo Park, California, using Skylab 4,
S190B imagery.
b. Recommendations concerning decision and/or actions reouired to
ensure the attainment of the experiment's scientific objectives:
No change
c. Expected accomplishments during the next report periods:
No change
d. Significant results and their relationship to practical appli-
cations or operational problems: No change
e. Summary outlook for the remaining effort to be performed:
No change
f. Travel summary and plans: None
Approved:
Robert H. Alexander
Principal Investigator
Skylab/EREP Investigation No. 469


Urban and regional land use analysis: CARETS and census cities experiment package

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