cloudless satellite imagery

Methods for Creating Cloud Free Satellite Imagery: Sentinel 2

September 7, 2017By Mark AltaweelGIS Data

Nearly 70% of the globe is covered by clouds at any given time. Several methods have been developed to remove cloud cover from satellite imagery.

Retreat of the Helheim Glacier between 2001 and 2005. Images from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite.

Creating a Time Series Visualization of Two Decades of Changes in a Glacier

NASA has created a time series visualization of Greenland’s Helheim Glacier using 20 years of data from radar, lasers, and high-resolution cameras.

Mapping Noise Pollution

As noise pollution continues to be a major issue for expanding urban areas, novel geospatial technologies have been deployed to better monitor and measure noise pollution.

Maps are the primary tools by which spatial relationships are visualized. Maps therefore become important documents. There are several key elements that should be included each time a map is created in order to aid the viewer in understanding the communications of that map and to document the source of […]

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