Keynote Talks
David Ray Thompson
Jet Propulsion Laboratory
4800 Oak Grove Dr.
Pasadena, CA 91109
United States of America
On the Dimensionality of Earth's Upwelling VSWIR Light Field
We report on the first multi-region, multi-year statistical survey of the dimensionality of Earth's upwelling Visible-Shortwave Infrared (VSWIR) light field. The intrinsic dimensionality quantifies the diversity in Earth's radiometric properties. This investigation analyzes spectra from a wide-area 2013 and 2014 campaign in California by NASA's "Classic" Airborne Visible Near Infrared Spectrometer (AVIRIS-C) as a precursor to future global missions. AVIRIS-C acquired over 2.5 billion spectra, with a large latitudinal and elevation range over coastal, terrestrial, and urban scenes. It overflew terrain spanning elevations from sea level to 3 km that included nearly all MODIS land cover types. The analysis exploits a robust estimate of noise based on the spectral uniformity of the AVIRIS-C whiskbroom instrument design. We find that the spectral diversity of terrestrial natural scenes is significantly lower than for urban scenes. Dimensionality for the dataset as a whole is greater than 40, underscoring the value of imaging spectroscopy to fully measure the Earth's upwelling radiation in the VSWIR range.
Paul Moorcroft
Harvard University
OEB Department
26 Oxford Street
Cambridge, MA 02138
United States of America
Remote Sensing of Terrestrial Ecosystems and the Development of a Predictive Science of the Biosphere
Roland Meynart
ESA - European Space Agency
ESTEC
Keplerlaan 1, PO Box 299
NL-2200 AG Noordwijk
The Netherlands
Hyperspectral imaging from Space: European Achievements and Plans for Ocean, Land and Atmospheric Applications
This keynote talk will give a technical overview of European hyperspectral imaging from space, going beyond the strict boundaries of land imaging spectroscopy and addressing also ocean (Envisat, S3) and atmospheric spectroscopy (S4,S5, future CO2), without forgetting land (FLEX).
