Remote Sensing & GIS

Biomass Modeling of the Ponderosa Pine Forests of Western North America with SIR-C x-SAR for Ecosystem Modeling

Submitted by fwd on

We have developed a microwave canopy backscatter model for continuous and discontinuous tree canopies. This model works at P-, L-, and C- bands. Model inputs are stand parameters (stand density, mean stand trunk diameter at breast height, etc.), tree parameters (numbers of branches per unit volume, branch size, etc.), and radar parameters (wavelength, polarization, etc.). Model outputs are the HH, HV, and VV backscatter coefficients, the VV-HH phase difference, and the HH and VV correlation coefficient. All five outputs correspond to five direct measurements of the JPL airborne SAR system.

Collaborative Research: Modeling the Spatial Dynamics and Environmental and Resource Impacts of U.S. Metropolitan Growth and Change

Submitted by Zack on

Between now and 2050, the population of the United States likely will grow by 120 million people according to the middle-series projections published by the U.S. Census Bureau. In many ways, knowing where and how future urban growth will occur may be more important than simply knowing how many more people will seek to live in or near the nation's metropolitan areas. To the degree that future spatial development patterns mirror those of the recent past, most of the increase in the U.S.

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