Geographic Information Systems (GIS)
Integrated Geospatial Expertise
Understanding spatial information and relationships is often critical to the success of projects in the environmental, engineering, mining, construction, natural resources, and defense industries, among others. Portage, Inc. maintains a complete geomatics program capable in many disciplines, implementing progressive geospatial technologies to provide superior services to our clients. Our program is founded on geographic information systems (GIS) and the ability of this technology to manage, analyze, and visualize
complex spatial datasets.
Data Capture, Generation, and Editing
Using a wide array of sources ranging from hardcopy assessor’s maps to satellite imagery
and land surveying equipment, Portage is adept at generating and georeferencing data
for use in GIS. Our understanding of the sciences behind GIS ensures that client data
are located accurately.
We specialize in locating and harvesting relevant project datasets available in the public
domain, assessing dataset validity, and tailoring and converting data to suit specific
project needs. Basemaps for our projects are commonly generated from public data and
subsequently integrated with original project data to create a valid final product at an
Portage can engineer GIS databases geared to client specifications or user level, from
simple shapefile-based directories to topologically correct geodatabases anchored in
relational database management systems such as Oracle.
Image/Raster Processing and Analysis
Portage GIS analysts have experience interpreting satellite imagery and orthophotography
for infrastructure development and geosciences applications. We mosaic and
process imagery and other rasters to create seamless, high-quality datasets for analysis in GIS.
Utilization of remote sensing equipment and interpretation of associated data are
key strengths of our geomatics program. We strive to identify project inputs that can
be improved through remote sensing technologies, and often use data from our own
terrestrial light detection and ranging (LIDAR) instrument to supplement insufficient
terrain datasets where high-resolution hypsography data is necessary.
Professional Cartographic Design
Our GIS group regularly communicates data analysis and project layouts to our clients
through maps, figures, and 3-dimensional visualizations. We take pride in cartographic
production, ensuring that deliverable products are meaningful, accurate, and
Custom GIS Solutions
Portage has a highly qualified group of professional software developers with experience
actualizing a variety of custom applications. The development team specializes in
database and Web application development.
Our software developers use the ArcGIS Server for Microsoft .NET to create solutions
for the delivery of interactive GIS maps and data using both client and server and display GIS data. The purpose of the applications and needs of the client dictate which of the
following methods we use:
- Web Applications - A Web application provides content from a server to a client within a
Web browser. Since the user interacts with a Web application via a Web browser
(such as Internet Explorer), the client-side application is built using Web standards to
create a user interface.
- Rich Internet Applications - Rich Internet applications (RIAs) are Web applications that
function like a desktop application. RIAs are hosted on a Web server, downloaded to
a client, and run within a Web browser. RIAs consume data from remote Web services,
which provides the end user with an enhanced presentation environment to visualize and
interact with the data.
- Desktop Applications - Desktop applications are stand-alone applications that work on a
single computer or across a network environment.
- Mobile Applications - Mobile applications are designed for devices such as PDAs,
martphones, pocket PCs, or tablet PCs.
- Web Services - Web services provide content from a server to a client as information. This
provides the backend for Rich Internet and Web applications.
Portage’s GIS staff, with more than 40 years of combined experience, provides diverse geospatial
services to several organizations at Los Alamos National Laboratory (LANL), supporting sitewide
environmental characterization and remediation, as well as facility operations, waste disposal
planning, and long-term landscape evolution modeling to aid risk assessment at Technical Area 54,
LANL’s low-level radioactive waste disposal facility. GIS also serves an integral role in our work for
commercial clients and other government agencies such as the Bureau of Land Management.
Portage assimilates information from multiple sources in GIS to simplify and analyze complex
spatial relationships and facilitate decision-making for our clients. Our program has the right tools
and experience to provide the highest quality GIS solutions available for your company’s current
and future endeavors.