Landsat 7

Data application of the month: Water quality monitoring

UNESCO World Water Quality Portal

What is the importance of water quality monitoring?

Short title: 

Data application of the month: Water quality monitoring

New interactive online map shows forest loss and gain from 2000-2012

First map of forest change that is globally consistent and locally relevant

A new high-resolution global map has been created as an interactive online tool that shows forest loss and gain from 2000 to 2012. "This is the first map of forest change that is globally consistent and locally relevant," said Prof Matthew Hansen of the University of Maryland, who led the project team which developed the map with the additional help of Google Earth.

Publishing Date: 

Mon, 18/11/2013 - 14:05

USGS: Over 9 million downloads for free Landsat data

Screenshot of the USGS Global Visualization Viewer

The use of Landsat data has exploded since the United States Geological Survey (USGS) began distributing the data at no cost via the internet. In the best sales year, around 25,000 images were sold. The Landsat project has now exceeded that number in a single day. In fact, the 9 millionth image was distributed on September 1, 2012. It has taken less than 4 years to reach this mark, which demonstrates both the temporal and geographic expansion of Landsat-based research, as well as exposure to new communities that are exploring the 40 years of global Landsat data for the first time.

Publishing Date: 

Wed, 12/09/2012 - 08:00

Satellite programs aid emergency crews battling wildfires

Multiple firefighting agencies are using imagery -- provided by federally funded Landsat 5 and 7, Aqua and Terra satellites -- to combat wildfires that continue to blaze across Arizona.

The satellites capture images of the Earth's surface and then, using color enhancements, firefighters can identify different regions most susceptible to wildfire burning. In the images, burn scars are red, ongoing fires are bright red, vegetation is green, smoke is blue and bare ground is tan-colored.

Publishing Date: 

Thu, 23/06/2011 - 14:44

What Will Climate Change and Sea Level Rise Mean for Barrier Islands?











A new survey of barrier islands published earlier this spring offers the most thorough assessment to date of the thousands of small islands that hug the coasts of the world's landmasses. The study, led by Matthew Stutz of Meredith College, Raleigh, N.C., and Orrin Pilkey of Duke University, Durham, N.C., offers new insight into how the islands form and evolve over time – and how they may fare as the climate changes and sea level rises.

Publishing Date: 

Thu, 16/06/2011 - 16:27

Remote Sensing - Tsunami Gallery

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