EOCAP-HSI FINAL Briefing RIT Technical Activities

1/16/01

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Table of Contents

EOCAP-HSI FINAL Briefing RIT Technical Activities

Outline

Airborne Hyperspectral Imagery Analysis Assessing Near Shore Water Quality

Airborne Hyperspectral Imagery Analysis Assessing Near Shore Water Quality

Long Term Approach: Integrated hybrid physical models validated and fine tuned by real imagery

Laurentian Great Lakes

Thermal Bar

Thermal Bar Process

Ontario Mid-lake Temperature Sections

LANDSAT Band6 May 11, 1992

Landsat June 23, 1996

Hyperspectral Imagery 

Objective and Product

Detectable Constituents

Modular Imaging Spectrometer Instrument

Commercial / Public Interest: 

Commercial / Public Interest: Monroe County

Commercial / Public Interest: Great Lakes Protection Fund

Commercial / Public Interest: Finger Lakes - Lake Ontario Watershed Protection Alliance 

Commercial / Public Interest: 

Commercial / Public Interest: US Department of Agriculture 

Commercial / Public Interest: 

Overview: Big Picture

Signal Sources

Remote Sensing Water Quality Tool: HydroMod

absorption IOPs

Normalized Scattering Distribution of the Fournier-Forand Phase Function with Parameters (nu,n) 

Example LUT Entries

Look Up Table

Simple Fitting

Squared Error

Trilinear Interpolation

Sample Comparison of Spectral Curve Fit

Calibrating AVIRIS Images

ELM Including Model correction

After ELM Calibration

Long Pond ELM Control Point

ELM Including Model correction

Atmospheric Compensation Improvement with Addition of Ground Truth Data Point

Piecewise Fitting

Spectral Weighting by Component Type

Weighted Fitting

Northwest Ponds of Rochester Embayment Lake Ontario 

Hyperspectral data:

May 20, 1999 AVIRIS-MISI Flight 

Phenomenology/Ground Truth

Aviris GT

CHL Ground Truth Comparison

TSS Ground Truth Comparison

CDOM Ground Truth Comparison

Evidence of solar glint

Scalar Concentration of CDOM

CHL Model Prediction Means vs. Ground Truth

CDOM Model Prediction Means vs. Ground Truth

TSS Model Prediction Means vs. Ground Truth

Lake Bottom at Different Spatial Resolutions

Lake Bottom at Different Spatial Resolutions

Hyperspectral Imaging for Bottom Type Classification and Water Depth Determination

Depth Varies Linearly

Case 2 : Varied depth, bottom type

Data Collection Ginna Bottoms

Ontario Beach Qualitative Results

Lake Bottom at Different Spatial Resolutions

Lake Ontario Bathymetry

Hyperspectral Requirements

Hyperspectral Requirements

Hyperspectral Requirements

Hyperspectral Requirements

Hyperspectral Technology Gaps

Hyperspectral Technology Gaps

Hyperspectral Technology Gaps

Status

Payoff Value

Author: student 

Email: raqueno@cis.rit.edu

Home Page: www.cis.rit.edu/~dirs

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