Caitlin Dempsey

Caitlin Dempsey is a geographer, writer, and founder and editor of Geography Realm. She holds bachelor's and master's degrees in Geography from UCLA and a Master of Library and Information Science (MLIS) from San José State University.

For more than two decades, she has written about geography, maps, geographic information systems (GIS), remote sensing, satellite imagery, and environmental science. Her work focuses on making geography accessible to a broad audience through articles, tutorials, and educational resources.

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A faded web map with a circle with a red line over a computer popup message.

How to Get Rid of that Pesky “missing (jsForm.htm)” Message in ArcIMS

Caitlin Dempsey

Here's a quick solution to remove the "missing (jsForm.htm" message from ArcIMS.

Basic Guide to ArcXML

Caitlin Dempsey

With the release of ArcIMS, ESRI’s map server software, GIS users were also introduced to ArcXML.  ArcXML is ESRI’s flavor ...

A dialog box in ArcView 3.x

Basics of ArcView 3.x Customization

Caitlin Dempsey

There are some simple concepts that you can learn to do basic modifications of ArcView 3.x.

Crime Mapping: GIS Goes Mainstream

Caitlin Dempsey

“I can cut crime in half in any city in this country.” So uttered are the first words of Police ...

Jason-1 – Measuring Ocean Topography From Space

Caitlin Dempsey

Jason-1 is a satellite to be jointly operated by NASA and CNES (Centre National d’Etudes Spatiales), the French space agency. ...

Learning Java – A GIS Perspective

Caitlin Dempsey

If you examine the GIS industry you will find a great diversity of applications of the technology, from business geographics ...

Using GPS to Monitor the Earth’s Movement

Caitlin Dempsey

A network of research stations located across Southern California and Baja California was created in 2011 in order to detect minute movements of the earth.

Two men with their back turned in a room with fluorescent lighting.

Notes from the Conference – ESRI’s 21st Annual User Conference

Caitlin Dempsey

The 21st annual ESRI User Conference is being held this week in San Diego, California with over 11,000 GISers representing 110 countries in attendance.

World in a Box video

The World in a Box

Caitlin Dempsey

This is an excellent video to show people who want to understand what GIS can do and how it affects them.

U.S. Census 2000 – Population Trends Mapped

Caitlin Dempsey

As the numbers are released from the 2000 United States Census, mapping the data helps clarify the nationwide trends in ...

Screenshot showing a mapped CSV file. The mapped points are red and the background layer is a green and yellow shaded relief.

GIS 2000: A Brief Look Backwards

Caitlin Dempsey

While anticipating the events of 2001, this article takes a brief look at some of the notable GIS and geospatial events of 2000.

A blue and red gradient map showing the breakdown of votes in the 2000 U.S. presidential election.

Campaign 2000 – the Recount

Caitlin Dempsey

A spatial look at the nail biting vote recount in Florida that will decide the winner of the 2000 U.S. presidential election.

A clipped view of the eastern part of the United States showing campaign stops. The states leaning towards Bush are colored pink and the ones leaning towards Gore are light blue.

Campaign 2000 – A Cartographic Perspective

Caitlin Dempsey

A look at the 2000 US Presidential election through campaign maps.

A screenshot showing the Gateway into Bali application.

Gateway into Bali

Caitlin Dempsey

Gateway into Bali is an interactive, guided tour of GIS using this colorful Indonesian island as the backdrop.

How to Create a Password Login For ArcView 3x

Caitlin Dempsey

If you want to require users to login with a password before being able to use ArcView here's a simple way.

Creating Html Pages on the Fly Using Avenue

Caitlin Dempsey

You can use Avenue to write html code in order to create html pages on the fly. In the Avenue ...

National Map Accuracy Standards (NMAS)

Caitlin Dempsey

Definition: Standards established in 1941 by the U.S. Bureau of the Budget to set accuracy standards for all federally produced ...

Linking MS Access With ArcView 3.x Using Avenue

Caitlin Dempsey

The two sections of code in this article focus on using Avenue to interact with MS Access to extract and use data with ArcView.

The Geography Network

Caitlin Dempsey

Esri launched the Geography Network as a collaborative system for sharing digital geographic information on the internet.

How to Add a Custom Symbol to Arcview 3x

Caitlin Dempsey

This article will show you in easy to follow steps how to add your own image file to ArcView 3x in order to create a custom symbol.

Geography of Fortune 1000 Companies

Caitlin Dempsey

Data gathered from two thousand year Fortune 1000 Company ranking was mapped in order to look at any spatial patterns in their locations.

ArcView 3.x screenshot showing red dots for the geocoded points and black lines for streets.

Geocoding Primer

Caitlin Dempsey

This tutorial explains how to geocode using Esri's ArcView 3.x GIS software.

Number of Year 2000 Fortune 1000 Companies by State

Caitlin Dempsey

Number of Fortune 1000 companies categorized by state for the year 2000.  The list of total count of Fortune 1000 ...

Fortune 1000 Companies By State for the Year 2000

Caitlin Dempsey

Listed below are the Fortune 1000 companies listed by state for the year 2000.  Each records lists the company name, ...

How to Change Default Directories in ArcView 3x

Caitlin Dempsey

After using ArcView 3x you’ve probably noticed the directory defaults. You can easily change the default temp directory, the first directory ...

The Power of Mapping

Caitlin Dempsey

The real value of GIS come from the ability to integrate spatial information with higher end statistical and analytical processes to derive spatial patterns not readily apparent to the observer.