Articles
Measuring Tree Height with a Pair of Satellites
Using synthetic aperture radar (SAR) data from two satellites, researchers developed a method for estimating tree canopy height.
Using Animals to Collect Weather Data
Attaching sensors to wildlife could give scientists fine-scale weather data from the habitats animals move through.
How Sea Level Rise Will Affect Salt Marshes
Researchers have calculated that about 90 percent of salt marshes are under threat from rising sea levels predicted to occur by the year 2100.
Collecting GIS Data in the Field Using QGIS and QField
This QGIS tutorial takes you through the steps to synchronize a map project with QField in order to collect GIS data using a mobile device.
American Chestnut: the Struggle to Save the ‘Redwood of the East’
Scientists and conservationists are working to rescue the American Chestnut from going completely extinct.
Surge Flows: A Rare River Phenomenon
Surge flows are a rare phenomenon where shallow waters, sand or sediment, and steep topography combine to create waves in rivers.
Conservation Tech: Monitoring Humpback Whales Using Image Recognition
Happywhale is a citizen science effort that uses AI to identify and track humpback whales.
North America’s Lowest Point on Land is Currently a Lake
Two recent heavy rainfall events have filled Badwater Basin, the lowest point in North America on land, up with water.
Using QGIS to Create a Hexbin Map
It is fairly easy to create a hexbin map using QGIS by following this GIS tutorial.
Geography of Lightning Strikes in the United States
Researchers recently mapped out data from the U.S. National Lightning Detection Network (NLDN) between 2017 and 2022 to see where lightning strikes the most across the contiguous United States.
Overwintering Monarch Butterfly Populations
The latest counts of overwintering monarch butterflies in California and Mexico.
Before There was GPS: Personal Navigation in the Early 20th Century
Here are a few creative ways inventors tried to make driving directions easier before there was GPS.
Mapping Geotagged Photos in QGIS
Geotagged photos can be easily mapped out in QGIS by following this GIS tutorial.
Why Climate Change is Making Some Animals More Nocturnal
As daytime temperatures rise, some animals are becoming more active at night to avoid heat stress.
Individual Seabird Adaption to Climate Change
Scientists tracked the migratory patterns of 145 seabirds to map how individual shearwaters are adapting to climate change.
Geography of Atolls
Atolls are ring-shaped coral reefs, islands, or a series of islets that encircle a lagoon either partially or completely.
How Inequality Affects Urban Wildlife
More access to green space and mature trees in wealthier neighborhoods in the United States has also led to a greater diversity of wildlife in those areas.
The Role of Secondary Forests in Reducing Atmospheric Carbon
Secondary forests play an important role in carbon capture strategies aimed towards reducing atmospheric carbon.
Cordiform: Heart-Shaped Map Projections
Heart shaped map projections are known as cordiform map projections which is derived from the Latin "cor" for heart and form for shape.
Nor’easter Storms in the United States
Nor'easters are powerful storms that bring heavy snowfall to the East Coast of the United States, primarily between September and April.
Using GIS to Map an Individual Animal’s Home Range
GIS can be used to model animal home ranges using location data collected through radio telemetry and GPS tracking.
How Normalized Difference Water Index is Used to Map Flooding
The Normalized Difference Water Index (NDWI) is a calculation used in remote sensing to monitor and measure the amount of moisture in vegetation and surface water bodies.
Find Public GIS Data with Google’s Earth Engine Catalog
The Earth Engine Data Catalog lets users search and discover Earth observation public datasets.
Alviso Slough in the San Francisco Bay
The Alviso Slough in the San Franciso Bay is a restored salt marsh that lies in the path of the Pacific Flyway.
What is the Outlook for California’s Atmospheric Rivers?
During the winter months, atmospheric rivers carry enormous amounts of water to the state of California.
Measuring Greenland’s Ice Loss
More accurate geospatial methodologies for measuring ice loss in Greenland indicate that existing approaches may not fully capture the scale of ice melt.