Program
HyperTeach@SADC
Training Course
(November 19-22, 2007)
During the 2-day
theoretical course (November 19-20, 2007) the following
topics will be covered:
-
physical basics of spectroscopy
-
imaging spectroradiometers
-
airborne campaign planning
-
spaceborne data availability
-
field equipment
-
sensor calibration
-
pre-processing
-
geometric and atmospheric corrections
-
data analysis and validation
-
2 applications: water and aquatic
ecosystems, biodiversity
During the
2-day
practical course
(November
21-22, 2007)
the ‘water and
aquatic ecosystems’ students will learn
-
how in-situ collected spectra,
measured with the GER spectroradiometer, can be used to observe
how light at different wavelengths is influenced by the water
column
- why
and how hyperspectral data, which is already radiometric,
geometric and atmospheric
-
corrected, needs additional
corrections for sun glint to perform the basic steps of satellite
image processing, including identification of bad data
-
how to perform a benthic cover
classification on a part of a coral reef
-
what happens with light at the
air-water interface
-
about the WATCOR functionalities
-
how to retrieve the required
atmospheric input parameters for WATCOR
-
how to interpret WATCOR output images
-
how to make and process in-situ
reflectance measurements above water
-
how to find a suitable TSM algorithm
-
how to derive a TSM map from an AHS
image and visualize it with an appropriate colour scale.
the ‘biodiversity’
students will learn how
-
to perform an atmospheric and
geometric correction of airborne hyperspectral images (including
field measurements) and how to prepare airborne hyperspectral
images for later classification
-
to measure leaf reflectance spectra,
to distinguish different vegetation species by their leaf
reflectance spectra and to use different indices to characterize
these differences
-
to classify vegetation species using
spectral similarity measures
For the practical course ENVI® software will be
used.
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