GIS Data Archives - Page 2 of 37

Artistic rendering of the Sentinel-6 Michael Freilich satellite. Image: Credits: NASA/JPL-Caltech

Mapping Sea-Level Rise with Sentinel-6

November 24, 2020 by Mark Altaweel

The recent launch of Sentinel-6 Michael Freilich/Jason CS is the latest mission that will collect high resolution sea level measurements.

Map of the global distribution of mean annual soil respiration (Rs) between 2000 and 2014. Figure: Huang et al., 2020.

Mapping Carbon Dioxide Emissions from Soil Respiration

November 10, 2020 by Mark Altaweel

Researchers recently developed a map of the global distribution of mean annual soil respiration (Rs) between 2000 and 2014.

Google's Earth Engine Data Catalog lets users discover public geospatial datasets.

Find Public GIS Data with Google’s Earth Engine Catalog

October 20, 2020 by Caitlin Dempsey

The Earth Engine Data Catalog lets users search and discover Earth observation public datasets.

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

11,334,866 Building Footprints for Australia

October 20, 2020 by Caitlin Dempsey

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

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

December 6, 2020October 2, 2020 by 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.

Screenshot from the Forest Observatory site.

Mapping Every Tree

November 2, 2020September 22, 2020 by Mark Altaweel

The California Forest Observatory, created by Salo Sciences, has applied a new artificial intelligence tool that maps every tree in California.

Screenshot from the Fire Activity Map from the University of California Cooperative Extension. Taken September 13, 2020.

Using GIS to Monitor the West Coast Wildfires

October 28, 2020September 13, 2020 by Mark Altaweel

With fires raging in California, Oregon, and Washington, scientists, activists, geospatial companies, and others are using GIS and spatial data to better inform and protect communities.

A screenshot from the MyShake Android app.

Earthquake Detection Using Smartphones

October 7, 2020September 8, 2020 by Mark Altaweel

Using aggregated accelerometer data across many smartphones, many of us can now better access a large-scale earthquake warning system.

Map A shows OpenStreetMap (OSM) building footprints overplayed onto an aerial. Map B shows predicted building footprint by area. The darker purple areas predict a high frequency of building footprints. The yellow overlay are the OSM building footprint layer. Source: Goldblatt, Jones, & Mannix, 2020, CC BY 4.0

Using Open Source Geospatial Tools to Find Missing Building Footprints

August 28, 2020August 28, 2020 by Caitlin Dempsey

Researchers have developed a methodology that uses remote sensing measurements to predict completeness in coverage of building footprints in OpenStreetMap data.