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Filter Total Items: 48
Standard for the U.S. Geological Survey Historical Topographic Map Collection
This document defines the digital map product of the U.S. Geological Survey (USGS) Historical Topographic Map Collection (HTMC). The HTMC is a digital archive of about 190,000 printed topographic quadrangle maps published by the USGS from the inception of the topographic mapping program in 1884 until the last paper topographic map using lithographic printing technology was published in 2006. The H
Authors
Gregory J. Allord, Kristin A. Fishburn, Jennifer L. Walter
An applied ontology for semantics associated with surface water land cover
No abstract available.
Authors
Dalia E. Varanka, E. Lynn Usery
US Topo Maps 2014: Program updates and research
The U. S. Geological Survey (USGS) US Topo map program is now in year two of its second three-year update cycle. Since the program was launched in 2009, the product and the production system tools and processes have undergone enhancements that have made the US Topo maps a popular success story. Research and development continues with structural and content product enhancements, streamlined and mor
Authors
Kristin A. Fishburn
Implications of Web Mercator and its Use in Online Mapping
Online interactive maps have become a popular means of communicating with spatial data. In most online mapping systems, Web Mercator has become the dominant projection. While the Mercator projection has a long history of discussion about its inappropriateness for general-purpose mapping, particularly at the global scale, and seems to have been virtually phased out for general-purpose global-scale
Authors
Sarah E. Battersby, Michael P. Finn, E. Lynn Usery, Kristina H. Yamamoto
US Topo: topographic maps for the nation
US Topo is the next generation of topographic maps from the U.S. Geological Survey (USGS). Arranged in the familiar 7.5-minute quadrangle format, digital US Topo maps are designed to look and feel (and perform) like the traditional paper topographic maps for which the USGS is so well known. In contrast to paper-based maps, US Topo maps provide modern technical advantages that support faster, wider
Authors
William J. Carswell
Integrating complexity into data-driven multi-hazard supply chain network strategies
Major strategies in the wake of a large-scale disaster have focused on short-term emergency response solutions. Few consider medium-to-long-term restoration strategies that reconnect urban areas to the national supply chain networks (SCN) and their supporting infrastructure. To re-establish this connectivity, the relationships within the SCN must be defined and formulated as a model of a complex a
Authors
Suzanna K. Long, Thomas G. Shoberg, Varun Ramachandran, Steven M. Corns, Hector J. Carlo
A program for handling map projections of small-scale geospatial raster data
Scientists routinely accomplish small-scale geospatial modeling using raster datasets of global extent. Such use often requires the projection of global raster datasets onto a map or the reprojection from a given map projection associated with a dataset. The distortion characteristics of these projection transformations can have significant effects on modeling results. Distortions associated with
Authors
Michael P. Finn, Daniel R. Steinwand, Jason R. Trent, Robert A. Buehler, David M. Mattli, Kristina H. Yamamoto
Approximating tasseled cap values to evaluate brightness, greenness, and wetness for the Advanced Land Imager (ALI)
The Tasseled Cap transformation is a method of image band conversion to enhance spectral information. It primarily is used to detect vegetation using the derived brightness, greenness, and wetness bands. An approximation of Tasseled Cap values for the Advanced Land Imager was investigated and compared to the Landsat Thematic Mapper Tasseled Cap values. Despite sharing similar spectral, temporal, a
Authors
Kristina H. Yamamoto, Michael P. Finn
User's guide for mapIMG 3--Map image re-projection software package
Version 0.0 (1995), Dan Steinwand, U.S. Geological Survey (USGS)/Earth Resources Observation Systems (EROS) Data Center (EDC)--Version 0.0 was a command line version for UNIX that required four arguments: the input metadata, the output metadata, the input data file, and the output destination path. Version 1.0 (2003), Stephen Posch and Michael P. Finn, USGS/Mid-Continent Mapping Center (MCMC--Vers
Authors
Michael P. Finn, David M. Mattli
Lidar base specification
In late 2009, a $14.3 million allocation from the American Recovery and Reinvestment Act (ARRA) for new light detection and ranging (lidar) elevation data acquisition prompted the U.S. Geological Survey (USGS) National Geospatial Program (NGP) to develop a common minimum specification for all lidar data acquired for The National Map. Released as a working draft in 2010 and formally published in 20
Authors
Hans Karl Heidemann
Design and development of linked data from the National Map
The development of linked data on the World-Wide Web provides the opportunity for the U.S. Geological Survey (USGS) to supply its extensive volumes of geospatial data, information, and knowledge in a machine interpretable form and reach users and applications that heretofore have been unavailable. To pilot a process to take advantage of this opportunity, the USGS is developing an ontology for The
Authors
E. Lynn Usery, Dalia E. Varanka
Volunteer map data collection at the USGS
Since 1994, citizen volunteers have helped the U.S. Geological Survey (USGS) improve its topographic maps. Through the Earth Science Corps program, citizens were able to "adopt a quad" and collect new information and update existing map features. Until its conclusion in 2001, as many as 300 volunteers annotated paper maps which were incorporated into the USGS topographic-map revision process.
Authors
B. Wolf Eric, Barbara S. Poore, Holly K. Caro, Greg D. Matthews