Lava Flows on Tolbachik|
June 14, 2013 | NASA Earth Observatory
NASA’s Earth Observatory has interesting satellite images of lava flows on Tolbachik, a volcano on the Kamchatka Peninsula. The images use visible light and shortwave infrared and near-infrared to enhance the visibility of volcanic features.
Understory Fires in the Amazon|
June 9, 2013 | NASA
“Using an innovative satellite technique, NASA scientists have determined that a previously unmapped type of wildfire in the Amazon rainforest is responsible for destroying several times more forest than has been lost through deforestation in recent years.”
Ash on Snow at Karymsky|
June 7, 2013 | NASA
“Ash covers the western slopes of Karymsky Volcano in this natural-color satellite image. The image was collected on May 20, 2013. [...] Late-season snow remained on the surrounding Kamchatkan landscape.” Quoted from the NASA image release.
Impact of Eyjafjallajokull On Ocean Biology|
May 17, 2013 | University of Southampton
Research at the University of Southampton determined that the 2010 eruption of Eyjafjallajökull supplied dissolved iron to a large area of the North Atlantic. This stimulated photoplankton growth but the abundance of iron caused the rapid removal of biological nitrate which applied a throttle on the phytoplankton.
Namibian Dust Over the Atlantic|
May 15, 2013 | NASA Earth Observatory
Strong winds carry plumes of dust from parts of Namibia where dry soil and a lack of vegetation allow the wind to pick up dust from the gravel-covered plains.
Ablation in Argentina|
May 14, 2013 | NASA Earth Observatory
NASA’s Earth Observatory has a satellite image showing how strong winds in Argentina are removing dust from inland lake beds and streaming it out over the Atlantic.
Google Earth Engine|
May 12, 2013 | Google Earth Engine
Google now has a website that uses satellite images to document landscape changes over time. With it you can see lakes shrinking, cities expanding, glaciers retreating and mining activities advancing.
Flooding Around Fargo|
May 2, 2013 | NASA
NASA’s Earth Observatory has satellite images that display flooding in the area around Fargo, North Dakota from early and late April 2013. They show waters of the Red River covering farmland around the city.
The First Satellite Images of Polar Ice Coverage|
April 26, 2013 | BBC
BBC.com has an article about the first satellite maps of the Arctic and Antarctic, produced in the 1960s and now providing useful information about polar ice change.
Dust Storm over the Nile|
March 27, 2013 | NASA Earth Observatory
“A dust storm blew through Egypt on March 22, 2013, obscuring parts of the Nile River and the Gulf of Suez.” Quoted from the NASA Earth Observatory image release.
First Images from the New Landsat Mission|
March 24, 2013 | NASA
“On March 18, 2013, the newly launched Landsat Data Continuity Mission began to send back images of Earth from both of its instruments — the Operational Land Imager and the Thermal Infrared Sensor. This view of Fort Collins, Colorado, is among the satellite’s first images.” Quoted from the NASA image release.
Spectacular Eruption Photos|
March 20, 2013 | geology.com
A collection of some of the most interesting photos of volcanic eruptions that we have seen from USGS, NASA and NOAA.
Activity at Popocatepetl Volcano|
March 12, 2013 | NASA Earth Observatory
“Mexico’s Popocatépetl Volcano released a plume in early March 2013. On March 8, Volcano Discovery reported an ash plume reaching roughly 1,500 meters (4,900 feet) above the volcano crater, or about 7 kilometers (4 miles) above sea level.” Quoted from the NASA image release.
Hot Rocks on Tolbachik Volcano|
February 21, 2013 | NASA Earth Observatory
“Nearly three months after Tolbachik began erupting, lava continues to flow from the Kamchatkan volcano. Over time, the lava flows change location and shift across the landscape. In this image, infrared data is superimposed on a natural-color image to highlight active flows.” Quoted from the Earth Observatory image release.
Freshwater Losses in the Middle East|
February 15, 2013 | NASA
“A new study using data from a pair of gravity-measuring NASA satellites finds that large parts of the arid Middle East region lost freshwater reserves rapidly during the past decade.” Quoted from the NASA press release.
A New Generation of Landsat|
February 11, 2013 | USGS
“Landsat images from space are not just pictures. They contain many layers of data collected at different points along the visible and invisible light spectrum. Consequently, Landsat images can show where vegetation is thriving and where it is stressed, where droughts are occurring, where wildland fire is a danger, and where erosion has altered coastlines or river courses.” Quoted from the USGS press release.
NASA’s Ocean Wind Monitor|
February 7, 2013 | NASA
“In a clever reuse of hardware originally built to test parts of NASA’s QuikScat satellite, the agency will launch the ISS-RapidScat instrument to the International Space Station in 2014 to measure ocean surface wind speed and direction.” Quoted from the NASA press release.
How Does Google Map North Korea?|
February 7, 2013 | Business Week
North Korea is a very closed country. This Business Week video explains how Google has been able to use crowd-sourcing to construct maps of North Korea beyond what can be obtained from satellite images.
Thirty Years of Eruptions at Pu’u ’O’o|
January 8, 2013 | NASA Earth Observatory
“Just after midnight on January 3, 1983, a small fissure opened within Napau Crater on Kilauea Volcano, spewing red-hot lava. Within hours, additional fissures stretched 6 kilometers down the volcano’s East Rift Zone. Thirty years later, the Pu’u ’O’o-Kupaianaha eruption continues, making it the longest eruption at Kilauea in recorded history. Since the eruption began in 1983, lava has poured almost continuously from a cluster of vents on the eastern flank.” Quoted from the Earth Observatory image release.
Snow on the Taklimakan Desert|
January 3, 2013 | Earth Observatory
NASA has a satellite image showing a rare snow-covering of the Taklimakan Desert of western China – normally one of Earth’s hottest deserts.
Lava Flow on Tolbachik|
January 2, 2013 | Earth Observatory
NASA’s Earth Observatory has a small collection of satellite images that document lava flows from a flank eruption on Tolbachik Volcano on Russia’s Kamchatka Peninsula.
2012 Great Images from Space|
January 1, 2013 | Universe Today
The UniverseToday.com website has a collection titled: “Most Awesome Space Images of 2012″. Check them out.
Landsat 5 – 29 Years Observing Earth|
December 23, 2012 | USGS
Today the U.S. Geological Survey announced that Landsat 5 will be decommissioned over the coming months, bringing to a close the longest-operating Earth observing satellite mission in history. [...] Now in its 29th year of orbiting the planet, Landsat 5 has long outlived its original three-year design life.
USGS Images for Natural Hazards Response|
December 16, 2012 |
“The primary goal of U.S. Geological Survey Natural Hazards Response is to ensure that the disaster response community has access to timely, accurate, and relevant geospatial products, imagery, and services during and after an emergency event. [...] Post-event imagery and analysis can provide important and timely information about the extent and severity of an event. USGS Natural Hazards Response will also support the coordination of remotely sensed data acquisitions, image distribution, and authoritative geospatial information production as required for use in disaster preparedness, response, and recovery operations.” Quoted from the USGS Fact Sheet.
Greenland Ice Loss Estimation|
December 12, 2012 | Princeton University
Princeton researchers have developed a method of measuring changes in Earth’s surface from satellite data. One of their applications was a cumulative map of Greenland’s ice loss between 2003 and 2012.
Google Earth at Night|
December 10, 2012 | Google Maps
A new Google map presents NASA’s new version of “Earth at Night”. Drill down to see oil drilling on Alaska’s North Slope, the distribution of lights on the Hawaiian Islands, illumination along the Nile River, interstate corridors in the eastern USA, natural gas flaring in Nigeria, the lack of night light in North Korea and many other features.
At right…. Lebanon, Israel and the Nile River system.
Dust Storms – Iran and Pakistan|
December 4, 2012 | NASA
NASA’s Earth Observatory has a recent satellite image that shows plumes of dust blown over the Arabian Sea by strong storms sweeping across parts of Iran and Pakistan.
Thick Valley Fog|
November 30, 2012 | NASA
NASA’s Earth Observatory has a great satellite image of fog in the valleys of the Missouri and Mississippi Rivers. Unfortunately this dense fog occurred on the day before Thanksgiving when many people were doing holiday travel.
Ashfall From Karymsky Volcano|
November 26, 2012 | NASA
Karymsky is the most active of Kamchatka’s eastern volcanoes, with almost constant (on a geologic time scale) volcanism occurring since at least the late 18th century, when the historical record for the region began.
Forecasting Volcanic Eruptions with Satellite Data|
November 12, 2012 | MSNBC
A study of Indonesian volcanoes demonstrates how a satellite monitoring changes in the shape of Earth’s surface could be a valuable tool in forecasting eruptions.