Caitlin Dempsey

Caitlin Dempsey is the editor of Geography Realm and holds a master's degree in Geography from UCLA as well as a Master of Library and Information Science (MLIS) from SJSU.

Free Online Geocoder

Caitlin Dempsey

Online geocoder services will generate latitude and longitude coordinates for a list of addresses.

2020 Gift Guide For the GIS Person in Your Life

Caitlin Dempsey

Looking for a gift for your favorite GIS person? Here's a list of geo-related suggestions for a range of budgets.

Geography of Thanksgiving

Caitlin Dempsey

Each November, families in the United States gather to celebrate Thanksgiving.

Import QGIS style files using the Style Manager.

QGIS Style Sharing Repository

Caitlin Dempsey

A new tool has been deployed that lets QGIS users share style files.

Sub-branches of Human Geography

Caitlin Dempsey

Human geography focuses on the role that human play in the world.

A road sign on Interstate 19 just south of Tucson taken April 18, 2005. Photo: NicAgent, Wikimedia.

The Only Metric Highway in the United States

Caitlin Dempsey

Currently, only three countries in the world have not adopted the metric system as the standard: The United States, Myanmar, and Liberia.

A Christmas tree farm in the mountains of western North Carolina. Photo: Randolph Femmer, USGS. Public domain.

What is the AP Human Geography Exam?

Caitlin Dempsey

The AP Human Geography exam requires in depth knowledge and analytical skills in a range of topics in the sub-branch of geography.

Map of Halloween Costume Spending Across the United States. Source: Esri.

Halloween GIS Fun

Caitlin Dempsey

Looking to add a little geo to your Halloween beyond the proliferation of Halloween Trick or Treater online maps? Halloween ...

Natural color images from the NOAA-NASA Suomi NPP satellite of fires burning in Colorado. Image: NASA, August 15, 2020, public domain.

Three of Colorado’s Wildfires are the Largest in Recorded History for the State

Caitlin Dempsey

Widespread drought and heat waves are helping to fuel a record-breaking fire season in Colorado.

An example of the building footprints open data set for Australia. Source: Microsoft.

11,334,866 Building Footprints for Australia

Caitlin Dempsey

Microsoft has released 11,334,866 building footprints covering the country of Australia.

October 2020 will see two full moons. Image: NASA, public domain.

Blue Moon on Halloween 2020

Caitlin Dempsey

For the first time since 2001, October will have two full moons.

Recycle your old sneakers.

How to Recycle Sneakers

Caitlin Dempsey

There are a few options for recycling or donating your old sneakers.

Attu Island, Alaska, July 4, 2000. Source: NASA Terra Satellite, public domain.

This Island is the Westernmost Point of the United States

Caitlin Dempsey

Located towards the end of the Aleutian Island chain, this Alaskan island is the westernmost spot in the United States.

Mount Logan is the highest in mountain in Canada at 5,959 meters (19,551 feet)

What is a Mountain?

Caitlin Dempsey

While it is widely assumed that a mountain is higher than a hill, there is no universally accepted definition of a mountain.

What are the Top Geography Programs in 2020?

Caitlin Dempsey

The latest QS World University Rankings by Subject reveal updated rankings for Geography departments around the world.

The left image shows the USDA CDL layer for Corn and soybean classification around Webster City, Hamilton County, Iowa in 2001. The right image shows the results of the Corn-Soy Data Layer (CSDL). Figure: Wang et al., 2020.

Mapping Crops: Filling in Data Gaps with Landsat Archives

Caitlin Dempsey

A recent study analyzed twenty years of Landsat data to look at corn and soybean crops across the US Midwest from 1998-2018.

A group of crows roosting in a tree at dusk.

Why Do Crows Flock in Large Numbers?

Caitlin Dempsey

Why do crows start gathering in large numbers at certain times of the year?

Paulette Returns as a Zombie Storm

Caitlin Dempsey

Paulette briefly evolved back into a tropical storm, making it a zombie storm according to NASA and NOAA.

QGIS on a laptop. Image: Caitlin Dempsey

Survey of GIS Professionals

Caitlin Dempsey

A quick look at GIS professionals, their educational background, and the software tools and programming languages they use in their jobs.

NOAA/NASA's Suomi NPP captured this image of a rare tropical-like storm system in the Mediterranean Sea intensifying off of Italy's southern coast on November 18, 2017. The image shows a well-defined eyewall as the storm entered the Ionian Sea between Italy and Greece. Image: NOAA, public domain.

What is a Medicane?

Caitlin Dempsey

Medicane is a tropical-like cyclone that forms in the Mediterranean Sea.

A globe showing carbon monoxide emissions with dark red for higher emissions and green for lower emissions.

Carbon Monoxide from the California Wildfires

Caitlin Dempsey

As wildfires burn in California, carbon monoxide is rising high up into the atmosphere where a NASA satellite is capturing readings.

This animated satellite view of the Atlantic Basin shows hurricanes Sally and Paulette, along with tropical storms Rene and Teddy, and tropical depression Twenty-One (which was named later in the day on September 14, 2020 as Tropical Storm Vicky).

Five Tropical Cyclones in the Atlantic Basin

Caitlin Dempsey

There are currently five tropical cyclones active in the Atlantic Basin.

Map of the Caribbean published in Legatio Babylonica, 1511 by Peter Martyr d'Anghiera. Digitized image from John Carter Brown Library

Earliest Known Map Showing Florida

Caitlin Dempsey

Published in 1511, the first map to show the peninsula of Florida is also a map of other firsts.

Amazon River, modified Copernicus Sentinel data (2019), processed by ESA, CC BY-SA 3.0 IGO,https://www.esa.int/ESA_Multimedia/Images/2020/09/Amazon_River

Satellite Imagery of the Widest River in the World

Caitlin Dempsey

The Copernicus Sentinel-1 mission captured this satellite image of the Amazon river that has been processed by the combining of two polarisations into one image.

How to View Animated Satellite Imagery of the California Wildfires

Caitlin Dempsey

Users can quickly make animations of the California wildfires using imagery from NOAA's GOES-West satellite.

Map of ocean heat content in the upper ocean (from the sea surface to a depth of 700 meters, or 2,300 feet) for 2017 relative to the 1993โ€“2017 baseline. Source: NASA.

Ocean Warming is Driving the Wrong-Way Migration of Some Benthic Species

Caitlin Dempsey

Some benthic species are spawning earlier due to ocean warming.

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