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Professional Surveyor Magazine
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GRASS GIS - The World Leading Free Software GIS
Geographic Resources Analysis Support System Commonly referred to as GRASS, this is free Geographic Information System (GIS) software used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies. GRASS is an official project of the Open Source Geospatial Foundation . Latest News!About « Manifold GIS User Blog
I work for a major North American consulting engineering company in the environmental management arena. I work with Manifold 8.0, ArcView 10 with 3D Analyst, AutoCAD 2008 (Map 3D and Raster Design), Civil 3D 2008, Surfer 8. I produce mapping and data for environmental reports, ranging from Phase I and II ESAs, Soil Remediation, ISI Mapping, Groundwater Studies and Source Water Protection, etc.
SPC UTILITIES
See the text version of an article about computing State Plane Coordinates that appeared in the Professional Surveyor magazine, January 2004 Volume 24, Number 1Update 2/9/09: John Palatiello shared this proposal with National Geospatial Advisory Committee (NGAC) last week. Do read the author’s note that explains this proposal has not been submitted to anyone, nor does it have any endorsements. You can learn more about the NGAC meeting in tomorrow’s podcast. —- update 2/2/09————- Update 2/2/09: ESRI has added a “comments” e-mail address to its Building a National GIS website . You can submit comments to: gisnation@esri.com .
Update 6: ESRI Invites Support for GIS for the Nation as Part of
The Carbon Portal :: Open-Geospatial .NET Community
*** New license posted . Good through April 30 and 50 transactions *** The Gaia WFS-T Extender is included with the free Gaia, however the embedded license has expired. Due to requests from users The Carbon Project is happy to announce an extended evaluation is coming soon with an updated Gaia release.
The U.S. Geological Survey has been a producer and distributor of Digital Elevation Model (DEM) data since the 1970s. These data have been produced by photogrammetric methods and by scanning, tagging, vectorizing, and gridding of hypsographic map separates.
, Digital Elevation Data and Gis
The great thing about geographic information systems is that data from different sources can be juxtaposed, according to the way that each is related to the suface of the planet -- and new information emerges about possible realtionships. This is made possible by spatial referencing systems such as Latitude and Longitude or projected coordinate systems. Software is getting better at aligning images and layers that are referenced in different coordinate systems, nevertheless we often encounter problems getting layers to line up as they should. This document provides some tips for troubleshooting and fixing alignment problems with spatial data. GIS databases organize information about observations with information about location.
Working with Coordinate Systems
This tutorial is intended to introduce you to the basic use of ArcGIS 8.2. ArcGIS is a large program with many extensions and many uses. We will concentrate on ArcMAP and ArcCatalog. In this workshop, you will learn how to:
Introduction To ArcGIS
GIS Cookbook: Recipe - Joining a table
Description: Often times, the information you want to display or analyze within GIS is in two different places or formats. Often you will have a map of a standard area, like the counties in a state or the states of a country, and you will want to add external data to them so you can look at that external data in a spatial context. In this recipe we will look at how to join data to a shapefile. Scenario: Ever since the work of John Snow and his mapping of Cholera cases, mapping cases and frequencies of diseases can help to find sources and cures. One of the major research topics of the 20th century is the search for an understanding of cancer.
These tutorials demonstrate how GIS can help measure areas of coverage, response times, slope, and other factors. A model is a set of rules or procedures for representing a phenomenon or predicting an outcome. Mike Price has written a series of articles that show how to construct networking models using the ArcGIS Network Analyst and ArcGIS Spatial Analyst extensions. These articles also teach basic data management techniques, offer tips, and show how to prepare data for use when modeling networks.