Scientific and Technical Aerospace Reports Volume 38 July 28, 2000

fire hazard through models that simulate fire spread. In this paper, we describe the AVIRIS derived products we are developing
to map wildland fuels.
Derived from text
Thematic Mapping; Remote Sensing; Mountains; California; Forest Fires; Fire Prevention; Chaparral
20000064569 California Univ., Dept. of Land, Air, and Water Resources, Davis, CA USA
Evaluation of Landscape Structure Using AVIRIS Quicklooks and Ancillary Data
Sanderson, Eric W., California Univ., USA; Ustin, Susan L., California Univ., USA; Summaries of the Seventh JPL Airborne Earth
Science Workshop January 12-16, 1998; Dec. 19, 1998; Volume 1, pp. 355-364; In English; See also 20000064520
Contract(s)/Grant(s): 1995-GlobalCh00404; No Copyright; Avail: CASI; A02, Hardcopy; A04, Microfiche
Currently the best tool for examining landscape structure is remote sensing, because remotely sensed data provide complete
and repeatable coverage over landscapes in many climatic regimes. Many sensors, with a variety of spatial scales and temporal
repeat cycles, are available. The Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) has imaged over 4000 scenes from
over 100 different sites throughout North America. For each of these scenes, one-band ”quicklook” images have been produced
for review by AVIRIS investigators. These quicklooks are free, publicly available over the Internet, and provide the most complete
set of landscape structure data yet produced. This paper describes the methodologies used to evaluate the landscape structure of
quicklooks and generate corresponding datasets for climate, topography and land use. A brief discussion of preliminary results
is included at the end. Since quicklooks correspond exactly to their parent AVIRIS scenes, the methods used to derive climate,
topography and land use data should be applicable to any AVIRIS analysis.
Derived from text
Infrared Imagery; Land Use; Remote Sensing; Topography; Climatology
20000064570 Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA USA
The AVIRIS Low Altitude Option-An Approach to Increase Geometric Resolution and Improve Operational Flexibility
Simultaneously
Sarture, Charles M., Jet Propulsion Lab., California Inst. of Tech., USA; Chovit, Christopher J., Jet Propulsion Lab., California
Inst. of Tech., USA; Chrien, Thomas G., Jet Propulsion Lab., California Inst. of Tech., USA; Eastwood, Michael L., Jet Propulsion
Lab., California Inst. of Tech., USA; Green, Robert O., Jet Propulsion Lab., California Inst. of Tech., USA; Kurzwell, Charles
G., Jet Propulsion Lab., California Inst. of Tech., USA; Summaries of the Seventh JPL Airborne Earth Science Workshop January
12-16, 1998; Dec. 19, 1998; Volume 1, pp. 365; In English; See also 20000064520; No Copyright; Abstract Only; Available from
CASI only as part of the entire parent document
From 1987 through 1997 the Airborne Visible-InfraRed Imaging Spectrometer has matured into a remote sensing instrument
capable of producing prodigious amounts of high quality data. Using the NASA/Ames ER-2 high altitude aircraft platform, flight
operations have become very reliable as well. Being exclusively dependent on the ER-2, however, has limitations: the ER-2 has
a narrow cruise envelope which fixes the AVIRIS ground pixel at 20 meters; it requires a significant support infrastructure; and
it has a very limited number of bases it can operate from. In the coming years, the ER-2 will also become less available for AVIRIS
flights as NASA Earth Observing System satellite underflights increase. Adapting AVIRIS to lower altitude, less specialized aircraft
will create a much broader envelope for data acquisition, i.e., higher ground geometric resolution while maintaining nearly
the ideal spatial sampling. This approach will also greatly enhance flexibility while decreasing the overall cost of flight operations
and field support. Successful adaptation is expected to culminate with a one-month period of demonstration flights.
Author
Airborne Equipment; Flight Altitude; Flight Operations; Low Altitude; Remote Sensing; U-2 Aircraft
20000064571 Zurich Univ., Remote Sensing Labs., Switzerland
Parametric Geocoding of AVIRIS Data Using a Ground Control Point Derived Flightpath
Schlaepfer, Daniel, Zurich Univ., Switzerland; Meyer, Peter, Zurich Univ., Switzerland; Itten, Klaus, Zurich Univ., Switzerland;
Summaries of the Seventh JPL Airborne Earth Science Workshop January 12-16, 1998; Dec. 19, 1998; Volume 1, pp. 367-372;
In English; See also 20000064520; No Copyright; Avail: CASI; A02, Hardcopy; A04, Microfiche
The position of scanning airborne systems (e.g. of the AVIRIS instrument) never is as stable as the behaviour of sensors on
spaceborne platforms. Thus, geometric distortions occur due to variations of the flight-path as well as of the attitude (given by
roll, pitch and heading angles) of the plane. These distortions can not be corrected by ground control point based traditional georeferencing
procedures easily, since the movements can not be approximated satisfyingly by polynomial transformations of the
image. A linewise calculation has to be performed instead, to consider the behaviour of the plane. Various projects have been carried
out at the RSL, which require an exact localization of ground truth measurement or need the information from a digital eleva-
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