Articles

A faded aerial map with red, green, and blue areas indicating 3 minute drive times for a city.

GIS for Local Government: Economic Development and Site Selection

Maptitude

This GIS tutorials shows how to use Maptitude in the municipal government sector for economic development and site selection.

A view from a plane at a snow covered mountain with conifer trees in the Sierras.

Mapping Snowpack and Forecasting River Rise in California

Mark Altaweel

Measuring snow and forecasting snowmelt effects on river rise is important for planning for California's water needs and to mitigate flooding.

A faded aerial with blue lines for water mains, blue dots for water meters, and brown for sewer lines.

GIS for Local Government: Public Works

Maptitude

This article by Stewart Barry and Brett Lucas describes an application of Maptitude in the municipal government sector for public works.

A picture of a brown turtle with its head raised sitting in shallow water surrounded by mud and plant stems.

Wildlife Conservation in the Face of Climate Change: The Importance of Protected Areas

Mark Altaweel

Protected areas are important for providing refuge to amphibians and reptiles impacted by climate change.

A shaded relief map of the Central Valley in California showing the location of Tulare Lake.

California’s Wet Winter Brought Back an Ancient Lake

Caitlin Dempsey

The once-vanished Tulare Lake reemerged after an exceptionally wet California winter, reclaiming a portion of its historic expanse in 2023.

Map showing the standard time zones for the entire world. PDF with a higher resolution. Map: CIA, 2018, public domain.

Which Country Has the Most Time Zones?

Caitlin Dempsey

Find out which country has the most time zones and how many countries in the world have at least two time zones.

Laptop with QGIS, a desktop GIS software program

Learn GIS for Free

Caitlin Dempsey

There are a few online options to learn GIS for free. Take advantage of resources that provide you access to free courses from some of the world's best universities and institutions.

QGIS on a laptop. Image: Caitlin Dempsey

How to Learn GIS

Caitlin Dempsey

There are many ways to learn GIS. Listed here are guides to learn GIS in a classroom, online, or through self-guided methods.

Finding the Right GIS Program

Caitlin Dempsey

Choosing the right GIS educational program to set you on the right path towards a GIS career, so be sure to consider all your options before making a decision.

Map showing the Indian Ocean, Oman Sea, and the Red Sea. Map: Epmistes, MediaWiki Commons.

What is the Difference Between a Sea and an Ocean?

Caitlin Dempsey

A look at the geographic definitions of oceans and seas.

A circular map of the world centered on the North Pole. The oceans are blue and the land masses are green and brown.

Types of Map Projections

Elizabeth Borneman

Map projections are used to transform the Earth's three-dimensional surface into a two-dimensional representation.

Badwater Basin, Death Valley National Park. Photo: NPS, public domain.

Why Salt Flats Have a Honeycomb Pattern

Caitlin Dempsey

Recently published research explains the scientific reason behind the honeycomb shapes found in salt flats.

Side by side maps showing a UTM file with zones and rows and a UTM grid file with just the zones.

Dissolve Features Based on Attribute in QGIS

Caitlin Dempsey

This GIS tutorial provides a step-by-step guide on how to dissolve features in QGIS based on an attribute field.

A girl with a white sweatshirt and black leggings dances in the shallow water of the beach by the ocean. Her back is to the camera and the sun is shining with a clear blue sky.

Oceans Produce Half of the World’s Oxygen

Caitlin Dempsey

The oceans produce over half of the oxygen in the Earth's atmosphere, making them a vital source of oxygen for life on our planet.

A heat map showing density of crimes over a street map.

GIS for Local Government: Public Safety

Maptitude

This GIS tutorial from Maptitude shows users how to map out crime and demographics.

A shaded relief map highlighting Alaska and the lower 48 states with the surrounding countries muted with a semitransparent white overlay.

A to Z Geography: United States

Caitlin Dempsey

The geography of the United States is diverse, featuring rugged mountains, arid deserts, dense forests, and expansive coastlines.

Two yellow lilies among weeds in a field.

Geography of Superblooms in the United States

Caitlin Dempsey

California's wet winter rains help drive the simultaneous blooming of a large number of wildflowers in the state's desert regions.

Laptop with QGIS, a desktop GIS software program

How to Find Internships in GIS

Caitlin Dempsey

Tips for finding a GIS internship: check job boards and internship websites, reach out to local employers, attend career fairs and events, and network.

A vegetation map of the northwest corner of Wyoming with mostly medium and light green.

United States Cropland Data

Caitlin Dempsey

The Cropland Data Layer (CDL) is a GIS dataset that the USDA updates annually to map the crops grown across the United States.

Fact sheet with Landsat image for the state of Wisconsin.

A to Z Geography: Wisconsin

Caitlin Dempsey

Wisconsin's geography is dominated by its location in the Great Lakes region, which has created a diverse landscape of fertile farmland, dense forests, and numerous lakes and rivers.

A zoning map with yellow, purple, and green areas.

GIS for Local Government With Maptitude: Planning and Zoning

Maptitude

This article explores how to use GIS in local or Municipal Government using Maptitude.

A section of a mountain range with some spots of snow and fir trees in the foreground.

A to Z Geography: Wyoming

Caitlin Dempsey

Wyoming, the 10th largest state in the United States, is a landlocked state located in the western part of the ...

Half of the Earth shown in a map.

A Guide to Understanding Map Projections

Caitlin Dempsey

Map projections are techniques used to transform the Earth's three-dimensional surface onto a two-dimensional plane, inevitably introducing some distortion in area, shape, distance, direction, or scale.

A satellite image of a glacier in the Antarctic.

Glaciers in the Antarctic Peninsula are Moving Faster During the Summers

Caitlin Dempsey

Antarctic Peninsula glaciers are speeding up: Analysis of 10,000+ satellite images from 2014-2021 shows increased seasonal velocity in 105 glaciers.

Screenshot showing a map in ArcGIS Pro.

How to Create an Air Pollution Map Using ArcGIS Pro

Jeff Oppong

This GIS tutorial outlines how to use ArcGIS Pro to map air pollution using data from the United States Environmental Protection Agency.

A view of the mountainous Brooks range in Alaska.

Geography of Alaska

Marques Hayes

Alaska's geography is characterized by its vast and rugged wilderness, diverse wildlife, towering mountains, expansive coastlines, and unique geological features.