Spatial Analysis Archives - Page 2 of 18

Satellite imagery over the Gulf of Mexico showing oil slicks in the water.

Mapping Oil Slicks With Satellite Imagery

Sentinel-1 synthetic aperture radar (SAR) satellite photography has been used in new study to map oil slicks.

An aerial image of a flock of waterfowl floating on the ocean.

Reliability of Machine Learning Maps

Academics are increasingly adopting machine learning maps to better understand what can happen for a range of environmental events.

A flooded street with clouds in the sky.

Higher Resolution U.S. Flood Maps

by Mark Altaweel

Researchers have developed a high resolution flood map for the United States.

A map of underwater ocean sounds created by commercial ships in the North Atlantic. The darker orange areas are higher levels of noise.

Mapping the Sounds of the Ocean

by GIS Contributor

Using arrays of underwater microphones, called hydrophones, scientists can use sound to create images of the environment by converting sound waves to electrical signals.

A 16th century map of the Scandinavian peninsula with ships and sea creatures in the water.

Extracting Geospatial Data from Historical Maps

by Mark Altaweel

New methods can detect location names from historical maps, make them searchable, and allow for the automated extraction of geographic data from those maps.

Screenshot showing the annual average soil loss layer in ArcGIS Pro.

How to Use ArcGIS Pro to Estimate Soil Erosion from a Catchment Basin

by Jeff Oppong

This lesson demonstrates how to use spatial data science and remote sensing techniques in ArcGIS Pro to predict soil erosion from a catchment using the Universal Soil Loss Equation (USLE).

A lightning bolt branches across the night sky during a storm. A darkened tree is in the lower right corner of the photo.

Remote Sensing of Lightning

by Mark Altaweel

Satellites and remote sensing tools are providing a way to better forecast and determine the severity of lightning.

Screenshot from ArcGIS Pro showing a symbolized raster of fire risk with yellow for low risk, orange for medium, and red for high risk.

How to Use ArcGIS Pro for Fire Risk Mapping

by Jeff Oppong

Tutorial showing how to map fire risk for a region with slope, elevation, aspect, and land use data in ArcGIS Pro.

Five panels showing the different lidar data products for a tree canopy.

Mapping Ecosystem Health through Satellite Data

by Mark Altaweel

Remote sensing techniques, particularly those based on satellite, drone, and aircraft data, have revolutionized collecting ecosystem data.

Map showing the delineated shoreline in ArcGIS Pro.

How to Use ArcGIS Pro for Automatic Shoreline Delineation from Landsat Imagery

by Jeff Oppong

This tutorial demonstrates a shoreline extraction strategy in ArcGIS Pro by explaning how to use the Tasseled Cap and Normalized Difference Vegetation Index (NDVI) to automatically delineate shoreline using the Landsat toolkit.

Figure 10: The resulting bar chart showing the total population counts for the 30-minute driving time catchment areas.

How to Perform a Site Selection Analysis in ArcGIS Pro

by Eric van Rees

Using this tutorial, ArcGIS Pro users will learn how to do a site selection analysis, which includes analyzing travel times and accessibility to a location via various modes of transportation.

A small scale map showing Low-Income, Low-Access Areas, 2019.

Using Local Knowledge to Better Map Food Deserts

by Mark Altaweel

Mapping and understanding food deserts is important if we are to understand how best to tackle the lack of healthy food options in the United States.