IMAGING SPECTROSCOPY PROJECTS
GENERALIZED IMAGING SPECTROSCOPY
1) A research, environmental or application
question that is connected to the distribution of materials that interact
with solar reflected energy.
Vegetation (species type, chemistry, absorbing and scattering constituents, etc.) natural, managed forests, agriculture, etc.
Coastal and inland water (in water constituents, bottom constituents, etc.)
Human generated materials
Snow and ice
Hazards (contaminants, etc.)
Atmosphere (absorbers, scatterers, etc.)
Rocks and soils (minerals, altered minerals, etc.)
Biomass burning (cellulose, leaf water, fire temperature, etc.)
Note: additional research, environmental
or application questions may be pursued through correlations with materials
that interacts with solar reflected energy.
2) Reflectance or equivalent signatures
of materials of interest
Spectral library of material signatures
Physical model of material signatures
Empirical strategy for deducing material signatures
Image derived signatures
3) Acquisition of imaging spectrometer
data for optimal expression of solar reflected signatures.
Clear sky and sun at optimal orientation
Material of interest expressed (e.g. seasonal variation in vegetation)
3a) Contemporaneous validation data
If this is a validation experiment, then independent measurement of the distribution of the materials of interest will support validation of the results.
4) Have a strategy for atmospheric
Empirical line method
4a) Measurements that support atmospheric
Reflectance measurements from one or two quasi homogeneous targets will generally improve the atmospheric correction
5) Algorithms and software that derive
the expression of the material of interest from the atmospherically corrected
reflectance imaging spectroscopy data set.
Multiple endmember unmixing
Physical model inversion
Empirical orthogonal function analysis
6) Algorithms that transform the
resulting material distribution images to map coordinates.
7) Apply the derived information
and address the research, environmental or application question.
8) Results and Reporting