Articles

A picture of open water at a sewage treatment plant.

Testing Sewage Can Predict COVID-19 Spikes

Elizabeth Borneman

The concentration of coronavirus RNA in sewage could point researchers toward a clearer picture of how many residents have been infected by the virus in a specific area.

Flowmap.blue examples

Easily Create Interactive Flow Maps

Caitlin Dempsey

Ilya Boyandin has developed an easy-to-use online tool that takes location data stored in Google Sheets to visualize interactive flow maps.

The split map function is a part of the ipyleaflet package, an interactive maps visualization system for Jupyter.

Python and Geospatial Analysis

Mark Altaweel

Two recent podcasts from MapScaping take a look at the use of Python in geospatial analysis.

A time-lapse photograph shows the ISS in six frames as it traverses the sun. Photo: Joel Kowsky, NASA, public domain.

Time-lapse Photo of the International Space Station Passing in Front of the Sun

Caitlin Dempsey

NASA photographer Joel Kowsky was able to capture this time-lapse photograph of the International Space Station (ISS) as it passed between the Earth and the Sun.

Find Your Way Downstream with Streamer

Rebecca Maxwell

Water is essential for life on the planet, and tool from the U.S. Geological Survey (USGS) makes it easy and fun ...

The Earth Archive Project and 3D Mapping the Earth

Mark Altaweel

The Earth Archive Project, launched in 2019, is a project that will provide a detailed 3D map of the entire Earth.

Map showing the location of New Guinea. Map: Equal Earth Physical Map, public domain.

What is the Largest Island in the Pacific Ocean?

Caitlin Dempsey

New Guinea is the largest island in the Pacific Ocean.

Crown shyness in trees. Gaps between the tree canopies on Fire Island. Photo: NPS, public domain.

Crown Shyness: When Trees Need Personal Space

Caitlin Dempsey

Crown shyness is a phenomenon where the outstretched branches of one tree don't touch neighboring tree branches.

The Human Footprint is a quantitative examination of human effect around the world. Human effect is graded on a scale of 0 (lowest) to 100 (highest) for each terrestrial biome on this map. Map: Human Footprint via NASA.

Mapping the Impact of Human Activity

Mark Altaweel

Different methods have been utilized by landscape ecologists to map and study the Earth’s relationship to human activity.

Maps showing NO2 levels in central and eastern portions of the country from February 10–25 (during the quarantine) and April 20 to May 12 (after restrictions were lifted). Source: NASA.

Rebounding Pollution Levels Mark End of Coronavirus Lockdowns

Elizabeth Borneman

As countries reopen during the COVID-19 pandemic, an increase in pollution has been detected by NASA and European satellites.

Projected geographical shift of the human temperature niche from current (A) to 2070 (B). Map C shows shaded areas of red where suitability has shifted the most from suitable to less suitable. Maps: Xu et al., 2020.

Study Estimates That 3 Billion People Will Be Living In Extreme Heat By 2070

Katarina Samurović

Researchers used data from UN population projections to map out how a three-degree warming scenario will translate into temperature changes for the world's population.

Map of detected tamarisk in southeastern Colorado, along the Arkansas River and irrigation ditches. Tamarisk infestations are shown from moderate (orange) to high (red). Map: Evangelista et al., 2009.

Using Remote Sensing to Map Invasive Species

Mark Altaweel

Scientists and researchers are increasingly using remote sensing methods to map and track invasive species.

Geoscientists with the Royal Observatory of Belgium reported that anthropogenic noise had dropped by a third after the lockdown was initiated on March 18, 2020.

Spread of Coronavirus May Have Seismic Implications

Elizabeth Borneman

Scientists who record and observe seismic activity around the globe are detecting major decreases in activity as the effects of the Coronavirus continue.

UAS-based acquisition pattern over the Santiaguito Lava Dome, Guatemala. Figure: Zorn et al., 2020.

Monitoring Volcanoes Using UAVs

Mark Altaweel

With the increase usage of unmanned aerial vehicles (UAVs), or drones, scientists now have a powerful tool to map active volcanoes safely.

ESA Launches Global Air Pollution Map

Caitlin Dempsey

The European Space Agency offers an online map that shows global air pollution data collected from its Copernicus Sentinel-5P satellite.

The Geography of Early Christian Ireland and England

G.T. Dempsey

     For nearly four centuries, Britain was Roman Britannia.  This period of imperial rule was a largely peaceful and prosperous time.  It was also ...

Screenshot of drone survey at 50m altitude over waters adjacent to Raine Island reef edge showing a painted turtle shell and unpainted shells. Dunstan et al., 2020.

Using Drones to More Accurately Count Sea Turtles

Caitlin Dempsey

Researchers have found that using drones and underwater cameras is a quicker and more accurate way to count green turtles.

Researchers counted vehicles in hospital parking lots to estimate hospital visits between January 9, 2018 and April 30, 2020. Source: Okanyene Nsoesie et al., 2020.

Analysis of Satellite Imagery and Search Data Suggests the Coronavirus Outbreak May Have Started Earlier in 2019

Caitlin Dempsey

A study that analyzed traffic around hospitals using satellite imagery and Baidu search queries suggests that the coronavirus outbreak may have started earlier in China than in December of 2019.

Massive List of GIS Tasks and Job Titles

Caitlin Dempsey

Ever wonder how diverse the titles are of those that work with GIS?

This map showing the average monthly temperature in the United States for April 2020 is an example of a GIS dataset that is continuous. Map: NOAA.

What is Continuous Versus Discrete Data in GIS?

Caitlin Dempsey

All datasets in GIS can be categorized as being either discrete or continuous.

Parcel data is a form of cadastral GIS Data showing the boundaries and attribute information about properties in a given area.

What is Cadastral GIS Data?

Caitlin Dempsey

Cadastral GIS data is data that contains information about land ownership. Parcel datasets are one form of cadastral GIS data. ...

Subaerial portion of Pūhāhonu. Photo: NOAA, public domain.

Earth’s Largest Shield Volcano

Caitlin Dempsey

Scientists have discovered the Earth's largest volcano using bathymetric and gravity mapping.

Slumgullion landslide. Photo: William Schulz, USGS, public domain.

Slow-Motion Landslides

Caitlin Dempsey

Not all landslides are sudden or fast-moving.

Screenshot from the Biodiversity Atlas of LA County

UCLA Researchers Map the Biodiversity of Los Angeles County

Elizabeth Borneman

UCLA researchers have mapped the biodiversity of Los Angeles County.

Map showing the location of Niue. Map: Equal Earth Wall Map, public domain.

Niue Designated the First Dark Sky Nation

Elizabeth Borneman

The Pacific island nation of Niue has made history as the first designated dark sky nation on Earth.

As habitats become increasingly fragmented, the number of interactions between humans and wildlife increases. Source: Bloomfield, McIntosh. & Lambin, 2020.

Study Shows Loss of Forest Linked to Spread of Disease

Elizabeth Borneman

A study out of the Stanford Woods Institute for the Environment has shed new light on the many impacts to humans and wildlife that come through the practice of deforestation.