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.

Hurricane Michael is the Fourth Category 5 Storm to Hit the United States

Caitlin Dempsey

Hurricane Michael was determined to be the fourth Category 5 storm to make landfall in the United States.

Geography of International Travel by U.S. Presidents

Caitlin Dempsey

So where have U.S. presidents traveled? ย This article explores the geography of international travel by sitting U.S. presidents.

Erbil Citadel, November 20, 2018, Landsat 8.

The Oldest Continuously Occupied Human Settlement

Caitlin Dempsey

Erbil Citadel, located in the center of Erbil, Iraq, is the oldest continuously occupied human settlement.

Various types and sizes of plastics collected from the Kinnickinnic River, Milwaukee, WI. Photo: S. Mason, State University of New York at Fredonia. Public domain. Source: USGS.

Stokes Drift Is Pushing Microplastics Towards the Arctic

Caitlin Dempsey

A recent publication in JGR Oceans took a look at how the physical processes of oceans affect the distribution of micro plastics around the world.

Normalized difference vegetation index satellite images of the state before and during the drought. | Image courtesy Chunyu Dong/UCLA.

Climate Change is Intensifying Drought in Southern California

Caitlin Dempsey

Researchers from UCLA and Columbia University discovered that the 2012โ€“16 drought impacted Southern California more severely than northern regions.

Margaret Montgomeryโ€™s Map of Scotland. NLS shelfmark: EMS.s.701

Teaching Geography Through Map Samplers

Caitlin Dempsey

These map samplers, made by schoolgirls over 200 years ago, demonstrated how such craftwork was utilized to aid in the teaching of geography.

The Arctic Permafrost is Thawing and It’s Causing Thousands of Landslides

Caitlin Dempsey

Using Banks Island, Canada as a study area, researchers analyzed trends in permafrost thaw and associated landslides.

36,500 Satellite Images from RADARSAT-1 Now Available to the Public

Caitlin Dempsey

The Canadian Space Agencyย and the Canada Centre for Mapping and Earth Observation have released RADARSAT-1's archive of 36,500 satellite images to the public.

Animated map showing the spread of the Cane Toad (Bufo marinus) throughout Australia from 1939 to 1980 at five year intervals. Map: Froggydarb, Mediawiki Commons.

Can Using a Waterless Barrier Prevent the Expansion of Invasive Species?

Caitlin Dempsey

In western Australia, researchers have proposed a waterless barrier method to halt the spread of cane toads.

Help Map Out Australia’s Dead Trees

Caitlin Dempsey

By using a GPS-enabled smartphone, volunteers can capture imagery of tree health around Australia to help researchers map out where trees are dying in Australia.

UK Satellite Data Now Available to Those Working in the Public Sector

Caitlin Dempsey

The UK Space Agency has announced that its radar and satellite imagery data will be made available to those working in the UK public sector.

Microsoft Releases Canada Building Footprint Database to OpenStreetMap

Caitlin Dempsey

Microsoft recently announced that it had released 12 million building footprints in Canada to the OpenStreetMap community. ย 

Fire Danger Reanalysis Dataset

Caitlin Dempsey

Researchers have made 38-years worth of globalย fire danger reanalysis available as an open dataset.

The First South Atlantic Tropical Storm Since 2010

Caitlin Dempsey

Iba is the first tropical storm to form in the South Atlantic since 2010.

NASA Satellite Captures Image of Meteor Over the Bering Sea

Caitlin Dempsey

On December 18, 2018, ย the Multi-angle Imaging SpectroRadiometer (MISR) instrument on NASA's Terra satellite detected the aftermath of an explosion of a fireball (a very bright meteor) ย 16 miles (26 kilometers)ย over the Bering Sea.

Manhole cover with a plan of old town part of Oldenburg, Germany. Photo: Anaconda74, Public domain

Maps on Manhole Covers

Caitlin Dempsey

Cities like Seattle, Chandigarh (India), and Oldenburg (Germany) have designed manhole covers with maps of their respective cities.

Topography of Australia’s Intertidal Zone Available as Open Data

Caitlin Dempsey

The National Intertidal Digital Elevation Model (NIDEM) is the first 3D model of Australia's intertidal zone. It is available for downloading as an open source dataset from Australia's National Map portal.

Tutorial: Introduction to Geospatial Analysis in R

Caitlin Dempsey

Explore the "Introduction to Geospatial Analysis in R" tutorial for lessons on importing files, layer management, and making maps.

Can Humans Sense Earth’s Geomagnetic Field?

Caitlin Dempsey

A group of researchers wanted to test if humans have the ability to sense the Earth's geomagnetic field.

Children’s Book: “Lindsey the GIS Specialist”

Caitlin Dempsey

The next time a child asks you to explain what GIS is, you might want to read them this online book about Lindsey the GIS Specialist.

A map showing night light pollution.

Interactive Map of How Nighttime Light Pollution Has Changed Around the World

Caitlin Dempsey

The Radiance Light Trends website offers an interactive map where users can see how night light pollution has changed between 1992 to the present.

How Archaeologists Used GIS to Explore Sounds of the Past

Caitlin Dempsey

Two archaeologists used GIS tools to model theย ancient soundscape of New Mexicoโ€™s Chaco Canyon.

The First Color Images of the Earth from Space

Caitlin Dempsey

The first color photographs of the full-disk view of the Earth were taken in 1967

Urbanization Makes the Surrounding Atmosphere Drier

Caitlin Dempsey

Researchers in southern China have analyzed the impact of urbanization on local climates, known as the urban dry island (UDI) effects.

Using Dark Fiber to Measure Seismic Activity

Caitlin Dempsey

Researchers wanted to test if unlit fiber cable could be used to collect measurements of seismic activity to fill in spatial gaps in the data.

These Two Species Are No Longer Extinct

Caitlin Dempsey

Recently, two formerly extinct species were separately discovered to still be living.

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