This month’s cover shows aerial photography of the narrow barrier islands, known as the Outer Banks, which extend more than 175 miles along the coast of North Carolina. These barrier islands, rarely more than one mile wide, form Pamlico Sound, the largest sound on the East Coast. The cover also shows graphical displays depicting coastal project areas, as defi ned by the National Geodetic Survey (NGS), which identify transformation grids used for computing tidal datum heights for Pamlico Sound, the Outer Banks shoreline, as well as several other East Coast shorelines. NGS, a division of the National Oceanic and Atmospheric Administration (NOAA), is responsible for mapping of coastal regions of the United States in order to provide regularly-updated, consistent national shoreline for nautical charts. In 2008, NGS engaged GeoCue Corporation to integrate certain aspects of their coastal mapping workfl ow into a GeoCue managed system. This included the installation and training for commercial-off-the-shelf software for use as a Geospatial Process Management System (GPMS). Also included was custom development to enhance GeoCue software to include integrated support for the Mean High Water (MHW) tidal datum. The MHW tidal datum is a vertical datum used by NGS for shoreline mapping.
For more information please contact the National Geodetic Survey at firstname.lastname@example.org or GeoCue Corporation at email@example.com.
1246 Implementing Tidal Datums in GeoCue (Adobe PDF 983Kb)
Stephen White, Lewis Graham, and Steve Riddell
1253 Compressing Lidar Data (Adobe PDF 1.62Mb)
Michael P. Gerlek
1272 Webinar — Introduction to Digital Elevation Models (DEMs)
1333 ASPRS 2010 Annual Conference — Opportunities for Emerging Geospatial Technologies
Columns & Updates
1257 Grids and Datums — Republic of
Burundi (Adobe PDF 1.3Mb)
1260 Mapping Matters
1262 Book Reviews — Manual of Geographic Information Systems
Review 1 by George Hepner (Adobe PDF 352Kb)
Review 2 by ASPRS Student Members (Adobe PDF 289Kb)
1267 Reflection of the Past (Adobe PDF 163Kb)
1269 Industry News
1250 New Members
1258 Certification List
1268 ASPRS Member Champions (Adobe PDF 572Kb)
1268 Region of the Month
1274 Who’s Who in ASPRS
1275 Sustaining Members
1277 Instructions for Authors
1318 Forthcoming Articles
1334 Advertiser Index
1335 Professional Directory
1336 Membership Application
Peer-Reviewed Articles (Click the linked titles to see the full abstract)
1279 Assessment of 2001 NLCD Percent Tree and
Impervious Cover Estimates
Eric J. Greenfield, David J. Nowak, and Jeffrey T. Walton
A comparison of tree and impervious cover values derived from the 2001 NLCD and a photo interpretation method within sampled US Census local government geographies.
1287 Large Area Scene Selection Interface (LASSI)
Methodology of Selecting Landsat Imagery for the
Global Land Survey 2005
Shannon Franks, Jeffrey G. Masek, Rachel M. K. Headley, John Gasch, and Terry Arvidson
To facilitate the scene selection process for the GLS2005, NASA and the USGS sponsored the development of a new tool to generate optimal collections of imagery using metadata statistics and user-defined weighting criteria.
1297 Adaptive Registration of Remote Sensing Images
using Supervised Learning
Line Eikvil, Marit Holden, and Ragnar Bang Huseby
A novel approach for registration of time series of remote sensing images, using supervised learning and a region based strategy to adapt the registration to image characteristics.
1307 Analysis of Dynamic Thresholds for the Normalized
Difference Water Index
Lei Ji, Li Zhang, and Bruce Wylie
A spectral library to simulate satellite data and established that the normalized difference water index derived from the green region and the shorter portion of the shortwave-infrared region has the most stable threshold and thus is the most ideal index for delineating surface water features.
1319 A Matching Algorithm for Detecting Land Use
Changes Using Case-Based Reasoning
Xia Li, Anthony Gar-On Yeh, Jun-ping Qian, Bin Ai, and Zhixin Qi
A matching algorithm to identify the temporal positions and the kind of changes by integrating object-oriented analysis and case-based reasoning for Multi-temporal SAR Images.