July 2014

Russian Arctic Islands, Landsat Image
Jul 23, 2014Observing Earth Today and Tomorrow: A National Plan

[By Jon Campbell, USGS] Humans have been observing Earth for a very long time simply because the conditions of the Earth are basic to our survival and our prosperity. Even the most ancient written records are filled with accounts of great [...]

Landsat-derived map of field use
Jul 23, 2014Landsat’s Role in Water Resource Management

[By Larisa Serbina and Holly M. Miller, USGS] Water availability and allocation are issues gaining a great deal of attention, particularly in arid climates. Increases in population growth and recent droughts bring urgency to measuring and [...]

2011 Miss. River flood
Jul 22, 2014Landsat’s Global Perspective

[Source: NASA Science Visualization Studio] On July 23rd, 1972, the first Landsat spacecraft launched into orbit. At the time, it was called "Earth Resources Technology Satellite," or ERTS, and was the first satellite to use a scanning [...]

WELD 2010 global collection
Jul 18, 2014Web-Enabled Landsat Data (aka WELD) Going Global

The Web-Enabled Landsat Data (WELD) project has released prototype global data sets for climate year 2010. The data sets are available as both monthly and annual 30m products generated from Landsat 5 and 7 data. The data sets are available at: [...]

Target Field, Minneapolis
Jul 16, 2014Picturing a Pixel

Landsat satellites collect data along a wide ground track that spans 185 kilometers (115 miles) but with a spatial resolution that allows them to see the human signature on the landscape. Each Landsat pixel covers a 30 by 30 meter area (98 by 98 [...]

Moon above Earth
Jul 11, 2014Landsat Looks to the Moon

[Source NASA / YouTube] Every full moon, Landsat 8 turns its back on Earth. As the satellite's orbit takes it to the nighttime side of the planet, Landsat 8 pivots to point at the moon. It scans the distant lunar surface multiple times, then [...]

Jul 8, 2014At the Beach with Landsat 8

[excerpted from Kate Ramsayer, NASA Goddard] Scientists with the Michigan Tech Research Institute are tracking the spread of Chladophora, a hair-fine algae that attaches to shallow water rocks, or the shells of dead invasive zebra and quagga [...]

Rebecca Moore
Jul 2, 2014Maps for Good: Saving Trees and Saving Lives with Petapixel-Scale Computing

Google has leveraged the massive amount of data collected about our planet from space over the last four-plus decades—Landsat being one of the key data sets. In this video, Google Earth Engine founder Rebecca Moore shares how Google Earth began [...]

USGS Landsat Water Report
Jul 1, 2014Landsat and Water—Case Studies of the Uses and Benefits of Landsat Imagery in Water Resources

[Source: USGS] The Landsat program has been collecting and archiving moderate resolution earth imagery since 1972. The number of Landsat users and uses has increased exponentially since the enactment of a free and open data policy in 2008, which [...]