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Conference Papers

Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.

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An algorithm for locating candidate labelling boxes within a polygon An algorithm for locating candidate labelling boxes within a polygon

Vector-based geographic information systems usually require annotation, such as a polygon number or attribute data, in a suitable location within a polygon. Traditional methods usually compute the polygon centroid, test the centroid for inclusion or exclusion, and select some alternative point when the centroid falls outside the polygon. Two problems are associated with this approach: (1...
Authors
Jan W. van Roessel

Wetland changes in coastal Alabama Wetland changes in coastal Alabama

No abstract available.
Authors
E. Randy Roach, Mary C. Watzin, James D. Scurry, James B. Johnston

Status of worldwide Landsat archive Status of worldwide Landsat archive

In cooperation with the International Landsat community, and through the Landsat Technical Working Group (LTWG), NOAA is assembling information about the status of the Worldwide Landsat Archive. During LTWG 9, member nations agreed to participate in a survey of International Landsat data holding and of their archive experiences with Landsat data. The goal of the effort was two-fold; one...
Authors
Howard W. Warriner

A joint NOAA/USGS study to evaluate satellite assessment of land surface features and climatic variables A joint NOAA/USGS study to evaluate satellite assessment of land surface features and climatic variables

Data collection and preliminary analyses have begun for a study that will evaluate the usefulness of satellite data for assessment of land surface features and climatic variables. The objective of the study is to determine what relationships exist between routinely available ground-based climatic and land surface information and satellite-obtained land surface information. The overall...
Authors
Kevin P. Gallo, J.D. Tarpley, Stephen M. Howard, D. G. Moore

Producing Alaska interim land cover maps from Landsat digital and ancillary data Producing Alaska interim land cover maps from Landsat digital and ancillary data

In 1985, the U.S. Geological Survey initiated a research program to produce 1:250,000-scale land cover maps of Alaska using digital Landsat multispectral scanner data and ancillary data and to evaluate the potential of establishing a statewide land cover mapping program using this approach. The geometrically corrected and resampled Landsat pixel data are registered to a Universal...
Authors
Katherine Fitzpatrick-Lins, Eileen Flanagan Doughty, Mark Shasby, Thomas R. Loveland, Susan Benjamin
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