Application of Spaceborne Synthetic Aperture Radar to Monitoring Seasonal Ecological and Hydrologic Processes in Boreal Forest
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Radar Ecology Hydrology Boreal Forest↗
Engineering topics
Way, J.
Publications and source records attributed to Way, J..
The KidSat Project
Imagine viewing our world from Space; a world astronauts have described as bright and vivid with no borders or boundaries.
students↗
Mapping Seasonal Freeze/Thaw Processes in Alaska with NSCAT
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NSCAT NASA Freeze/Thaw Processes hydrology meteoro↗
Freeze/Thaw as a Measure of Global Change Responses of the Boreal Land Surface Using Spaceborne Radars
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hydrological cycle boreal global change freeze/tha↗
Diurnal and spatial variation of xylem flow and xylem dielectric constant in conifers
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diurnal variation spatial variation xylem flow xyl↗
Microclimate, Water Potential, Transpiration, and Bole Dielectric Constant of Coniferous and Deciduous Tree Species in the Continental Boreal Ecotone of Central Alaska
Tree canopy microclimate, xylem water flux and xylem dielectric constant have been monitored in situ since June 1993 in two adjacent natural forest stands in central Alaska. The deciduous stand represents a mature balsam poplar site on the Tanana River floodplain, while the coniferous stand consists of mature white spruce with some black spruce mixed in. During solstice in June and later in summer, diurnal changes of xylem water potential were measured to investigate the occurrence and magnitude of tree transpiration and dielectric constant changes in stems.
bole dielectric constant coniferous trees deciduou↗
Characterization of Canopy Physiology at Boreas with SAR
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BOREAS boreal forest biome atmosphere Canada Princ↗
Characterization of Canopy Physiology at Boreas with SAR
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atmosphere Canada Saskatchewan↗
A system for verifying models and classification maps by extraction of information from a variety of data sources
Recent updates to a geographical information system (GIS) called VICAR (Video Image Communication and Retrieval)/IBIS are described. The system is designed to handle data from many different formats (vector, raster, tabular) and many different sources (models, radar images, ground truth surveys, optical images). All the data are referenced to a single georeference plane, and average or typical values for parameters defined within a polygonal region are stored in a tabular file, called an info file. The info file format allows tracking of data in time, maintenance of links between component data sets and the georeference image, conversion of pixel values to `actual' values (e.g., radar cross-section, luminance, temperature), graph plotting, data manipulation, generation of training vectors for classification algorithms, and comparison between actual measurements and model predictions (with ground truth data as input).
Norikane, L.↗