GIS Data
National Forest Map and GIS Data
Josef Kellndorfer and Wayne Walker of the Woods Hole Research Center (WHRC) worked with the USGS and the US Forest Service over a six year period to create this forest map of the United States.
Metadata
What is metadata and why is it important to document GIS data? Metadata is an important, but unfortunately oft overlooked component of GIS data. Metadata is 'data about the data' and it's vital to understanding to source, currency, scale, and appropriateness of using GIS data.
Basemaps Defined
What is a basemap? The term basemap is see often in GIS and refers to a collection of GIS data ...
New Global Elevation Data Available: Global Multi-resolution Terrain Elevation Data 2010
NGA and USGS revised and improved their global elevation model.
Explaining Socium, a Cloud Based GIS Data Validation Service
Abbie Beckford, Customer Relations and Marketing Manager at Socium, shares insight about the new launch and what the benefits of ...
Nokia’s Crowdsourcing GIS Effort
Nokia recently launched Map Creator (in beta), tossing its hat into the crowdsourcing GIS ring. While the announcement proclaims, “We’ve ...
Geosk: GIS Data as a Service (Daas)
Whats is Geosk and what does it mean for GIS data delivery? Scott Robinson, Director, Global Data Products at Pitney Bowes Business Insight, explains what Geosk means for GIS Data as a Service (DaaS) and how cloud computing can be used to delivery GIS data online.
Satellite imagery
Digital imagery can greatly enhance a GIS. Part of the raster data types, imagery is a powerful visual aid and ...
Six Best Sources for Local Land Use/Land Cover GIS Data
Guest article by Kristen Carney and Aaron Herman of Cubit. This article is a follow-up on “National Land Cover Data Set: When ...
Ordnance Survey Data to be Made Freely Available
The UK's Ordnance Survey will "will open up its data relating to electoral and local authority boundaries, postcode areas and mid scale mapping information."
First American Spatial Solutions and Parcels
FASS has promoted their ParcelPoint® GIS database and associated technologies, featuring a nationwide parcel database with over 120 million parcels, now approaching 122 million, as highlighted by their vice president and general manager, Scott Little.
Spatial Data Quality: An Introduction
Data quality is the degree of data excellency that satisfy the given objective. In other words, completeness of attributes in ...
Methods for Creating Spatial Databases
There are several ways in which to bring spatial data into a GIS. This article provides a brief overview of some of the more common methods for creating vector GIS data.
Orthophotos and GIS
Aerial photographs play an important role in GIS data acquisition and visualization. First, they help provide a solid visual effect. ...