Optical Imaging and Field Spectroscopy: CLPX 2002 and 2003 Thomas H. Painter

8 th CLP Workshop, Boulder, CO Spectroscopists Rick Forster (U of Utah) Nate Mulherin (CRREL) H.P. Marshall (U of Colorado) Elke Ochs (CRREL) Janet Hardy (CRREL) Michael Eastwood, Chuck Sarture, Ian McCubbin, Robert Green (JPL)

8 th CLP Workshop, Boulder, CO Hyperspectral Remote Sensing Greatest spectral leverage for –Subpixel snow covered area –Canopy closure –Subpixel snow grain size –Snow impurity concentrations –Subpixel snow albedo –Snow surface liquid water content –Vegetation classification (e.g. Potter Creek Site) Nadir view  maximum viewable snow cover

8 th CLP Workshop, Boulder, CO Hyperspectral Remote Sensing Comparisons and complementary data –Snow covered area (passive, radar) –Grain size (passive, radar) –Snow liquid water content (passive, radar) –Canopy closure (passive, radar) Field spectral albedo comparisons with field passive and radar instrumentation Demonstration of complementary spaceborne instrumentation (Hyperion+)

8 th CLP Workshop, Boulder, CO Instruments NASA Earth Observing-1 Hyperion (spaceborne) NASA/JPL Airborne Visible Infrared Imaging Spectrometer (AVIRIS) (airborne) Analytical Spectral Devices Full-Range Field Spectroradiometer (field)

8 th CLP Workshop, Boulder, CO EO-1 Hyperion Spectral range 0.4   2.5  m Number of bands220 Spatial resolution30 m Swath Width7.8 km Repeat Cycle16 days Local acquisition time 10:30 A.M. Signal to Noise40-160

8 th CLP Workshop, Boulder, CO Airborne Visible Infrared Imaging Spectrometer (AVIRIS) Spectral range 0.4   2.5  m Number of bands224 Spatial resolution20 m (nominal) 1.5 m (low alt) Swath Width12 km 1 km (low alt) Local acquisition time variable Signal to Noise

8 th CLP Workshop, Boulder, CO ASD FR Field Spectroradiometer Spectral range 0.35 – 2.5  m Spectral resolution –  m Spectral sampling –  m Weight7.2 kg

8 th CLP Workshop, Boulder, CO ACQUISITIONS HYPERION February 15, 2002 Fraser MSA R: 0.66  m G: 0.91  m B: 1.33  m Fraser Experimental Forest 7.8 km N

8 th CLP Workshop, Boulder, CO ACQUISITIONS HYPERION March 19, 2002 Fraser MSA R: 0.66  m G: 0.91  m B: 1.33  m Fraser Experimental Forest N

8 th CLP Workshop, Boulder, CO Fraser MSA St. Louis Creek ISA Fool Creek ISA Alpine ISA LSOS HYPERION March 19, 2002 Fraser MSA R: 0.66  m G: 0.91  m B: 1.33  m

8 th CLP Workshop, Boulder, CO Field Calibration

8 th CLP Workshop, Boulder, CO LSOS Field Spectra

8 th CLP Workshop, Boulder, CO LSOS Field Spectra March 31, 2002, IOP-2  = 36°,  = 0°

8 th CLP Workshop, Boulder, CO Field Calibration

8 th CLP Workshop, Boulder, CO Hyperion – calibrated spectra Field calibrated wavelength (  m) reflectance Hatch retrieved wavelength (  m) reflectance

8 th CLP Workshop, Boulder, CO AVIRIS CLPX Acquisitions

8 th CLP Workshop, Boulder, CO 2002 Acquisitions Fraser MSA, April 4, 2002

8 th CLP Workshop, Boulder, CO ACQUISITIONS Fraser MSA, April 4, 2002

8 th CLP Workshop, Boulder, CO ACQUISITIONS AVIRIS April 4, 2002 Rabbit Ears MSA R: 0.66  m G: 0.91  m B: 1.33  m N

8 th CLP Workshop, Boulder, CO ACQUISITIONS AVIRIS April 4, 2002 Rabbit Ears MSA R: 0.66  m G: 0.91  m B: 1.33  m N

8 th CLP Workshop, Boulder, CO ACQUISITIONS AVIRIS April 4, 2002 Rabbit Ears MSA R: 0.66  m G: 0.91  m B: 1.33  m N

8 th CLP Workshop, Boulder, CO ACQUISITIONS AVIRIS April 5, 2002 North Park MSA R: 0.66  m G: 0.91  m B: 1.33  m N

8 th CLP Workshop, Boulder, CO ACQUISITIONS AVIRIS April 4, 2002 Fraser MSA (Alpine ISA) R: 0.66  m G: 0.91  m B: 1.33  m N

8 th CLP Workshop, Boulder, CO Vegetation Classification RGBMinimum Distance Potter Creek ISA/NCAR Tower - April 4, 2002

8 th CLP Workshop, Boulder, CO Mt. Rainier, WA USA 4393 m AVIRIS 14 June 1996 = nm = nm = nm

8 th CLP Workshop, Boulder, CO Mt. Rainier, WA USA 4393 m AVIRIS 14 June 1996 Water Vapor

8 th CLP Workshop, Boulder, CO Mt. Rainier, WA USA 4393 m AVIRIS 14 June 1996 Liquid Water

8 th CLP Workshop, Boulder, CO Mt. Rainier, WA USA 4393 m AVIRIS 14 June 1996 Ice/Snow

8 th CLP Workshop, Boulder, CO Mt. Rainier, WA USA 4393 m AVIRIS 14 June 1996 = Water Vapor = Liquid Water = Ice/Snow

8 th CLP Workshop, Boulder, CO 2003 CLPX Acquisitions (Quicklooks) – February 19 Fraser Experimental Forest MSA

8 th CLP Workshop, Boulder, CO Hyperion Distribution

8 th CLP Workshop, Boulder, CO AVIRIS Distribution