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Mapping Vegetation Structure Using Lidar
ICESat/GLAS,
MODIS, C#, PostGIS, ENVI, IDL, ArcGIS, Manifold.NET
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Estimated vertical distribution of vegeration height within 500m areas in North America,
based on satellite-based lidar measurements and grouped by distribution type (part of dissertation project, CUNY, in progress).
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Satellite / Airborne Lidar Analysis
ICESat/GLAS,
Airborne Lidar, C#, PostGIS
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Validation of satellite lidar processing algorithms against airborne lidar (part of dissertation project, CUNY, in progress).
The ellipse is the footprint of a GLAS lidar waveform capturing foliage distribution (x, y, z in meters) in Cunningham Park, Queens. The points are coincident airborne lidar returns
sized by return intensity and colored by a gaussian function of distance from the center of the footprint, to simulate the horizontal distribution of energy returned to the GLAS sensor.
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Solar Radiation Modeling for the New York City Solar Map
C#, PostGIS, ArcGIS
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Sample estimated insolation, based on airborne lidar data
(CARSI, Sustainable CUNY), calculated at 1m scale for all of New York City;
data also used in the IBM Think Exhibit.
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Map Usage Patterns
SharpMap, C#, PostGIS
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Dynamic time-line map of activity on the NYC Solar Map.
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Locating Urban Trees Using Lidar
MASSGIS lidar data and orthophotos,
C#, PostGIS, KML, Manifold.NET
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Results of tree-finding algorithm displayed in Google Earth with extruded building footprints, both based on Lidar data.
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Transpiration from EVI and Temperature
MODIS EVI/LST products, C#, PostGIS, Manifold.NET
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Transpiration in the Northeast US estimated from regression equations derived from flux tower measurements,
satellite-based enhanced vegetation index, and temperature.
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Daily Northern Hemisphere Snow Depth
NSIDC EASEGRID products, C#, MatLab, IDL, ArcGIS
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Daily snow depth for 2002-2009 interpolated from weather station
data (Cryospheric Processes and Remote Sensing Laboratory).
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Biomass Burning
MASSGIS orthophotos,
Landsat imagery, C#, ArcGIS, Manifold.NET
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Animation of forest consumption by proposed biomass generators (Mass Forest Watch).
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Lidar / Thermal Mapping
MASSGIS lidar and orthophotos,
Landsat imagery, C#, PostGIS, Manifold.NET
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A map of the urban thermal landscape in suburban Boston showing the correlations between land cover and urban heat, based on Landsat and lidar data.
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Aster Inventory
ASTER imagery, C#, MatLab, PostGIS
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A Google Earth KML interface for browsing ASTER satellite images of
supraglacial meltwater lakes in Greenland (lighter means less meltwater;
border color is month of year; altitude is year) (Cryospheric Processes and Remote Sensing Laboratory)
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Landsat Interpolator
Landsat imagery, MatLab
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Utility to interpolate pixels missing from Landsat ETM+ imagery.
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Modeled Versus Measured Sea Ice Extent
NSIDC EASEGRID products,
EDGCM, C#
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Left is polar view of NIC January 2003 ice chart; center is model output monthly average for January, 2003; right is difference image.
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Cellular Automaton Rule Extraction
C#
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A system for encoding and traversing the "rule space"
of cellular automata models extracted from daily West Nile
Virus risk rasters (CARSI).
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Quadtree Index
C#
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A quadtree-based raster comparison metric for binary
images that measures their similarity simultaneously at
multiple scales, without regard to orientation.
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AVHRR Time Series
AVHRR data,
C#
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An analysis of time-series vegetation data derived from
AVHRR satellite imagery that validated the observed increase in northern hemisphere vegetation from 1981 to 2001, as reflected
in the growing season length.
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