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Last updated on April 20, 2014 at 8:28 EDT

Latest Envisat Stories

Space Debris Threat From Envisat Explored By University Of Leicester Students
2014-02-20 07:32:18

redOrbit Staff & Wire Reports - Your Universe Online A recently-published paper from physics students at the University of Leicester explores the possibility that a massive observational satellite that lost contact with Earth in 2012 could be the catalyst that sets off a chain of events much like those depicted in the Academy Award-nominated film Gravity. Writing in the Journal of Physics Special Topics, a peer-reviewed student journal run by the University’s Department of Physics...

Could Global Warming Be Hiding Underwater?
2014-02-10 09:17:24

ESA Satellite observations of global sea-surface temperature show that a 30-year upward trend has slowed down within the last 15 years. Climate scientists say this is not the end of global warming, but the result of a rearrangement in the energy flow of the climate system and, in particular, how the ocean stores heat. Like flying thermometers, some satellites carry instruments that provide a global view of the surface temperature of oceans and seas. Measuring the sea-surface temperature...

Winter Ice Is On The Decline Across Alaskan Lakes
2014-02-03 10:22:48

Brett Smith for redOrbit.com - Your Universe Online According to a new study from the European Space Agency, ice in northern Alaska’s lakes during winter months is on the decline. Twenty years of satellite radar images in the study, which was published in The Cryosphere, show how shifts in our climate are affecting high-latitude regions. [ Watch the video: Monitoring Lake Ice ] Alterations in air temperature and winter precipitation over the last 50 years have affected the timing,...

ESA CryoSat Mission Confirms Antarctic Ice Loss Is On The Rise
2013-12-12 06:08:21

Alan McStravick for redOrbit.com - Your Universe Online With news out of San Francisco this week, at the autumn meeting of the American Geophysical Union (AGU), we learned scientists have incorrectly estimated the amount of ice being lost on the polar continent of Antarctica. This environmental faux pas directly affects the estimates on global sea level rise as well. The team presenting these findings conducted their research with the Natural Environment Research Council’s Center for...

Satellite Flood Maps Reach Crisis Teams Through The Internet
2013-09-27 12:09:40

ESA Building on its use of satellites for responding to disasters, ESA has helped to create a service that makes flood maps available simply via the Internet. Floods can be devastating, as seen recently in Germany and central Europe. Knowing the extent of a flood and understanding how it might develop is essential for teams responding to the emergency. Traditionally, this is often worked out using ground and airborne sensors along with historical flood maps. Invariably, these...

CO2 On The Rise Satellite Images
2013-09-04 13:04:37

Lee Rannals for redOrbit.com - Your Universe Online A new report says satellite observations have shown that carbon dioxide in our atmosphere has continued to increase, despite global efforts to curb emissions. Ten years of data taken from the European Space Agency's (ESA) Envisat mission and Japan's Greenhouse gases Observing Satellite (GOSAT) show that carbon dioxide increased by about 0.5 percent every year between 2003 and 2013. The measurements also show that methane began...

Jason-1 Satellite Decommissioned
2013-07-03 14:48:04

Michael Harper for redOrbit.com - Your Universe Online More than 11 years ago, NASA launched the Jason-1 ocean altimetry satellite into orbit in a joint venture with the Centre National d'Etudes Spatiales (CNES). The satellite would be used to map sea levels, wave height and wind speed from miles above the ocean's surface. Since that time, one successor satellite, the Jason-2, has been sent into space to supplement this information. The Jason-3 is expected to launch in 2015. Two weeks...

2013-07-03 12:21:08

WASHINGTON, July 3, 2013 /PRNewswire-USNewswire/ -- The curtain has come down on a superstar of the satellite oceanography world that played the "Great Blue Way" of the world's ocean for 11 1/2 years. The successful joint NASA and Centre National d'Etudes Spatiales (CNES) Jason-1 ocean altimetry satellite was decommissioned this week following the loss of its last remaining transmitter. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) Launched Dec. 7, 2001, and designed...

Using Space Software To Identify Alzheimer’s
2013-06-28 09:33:13

ESA Software for processing satellite pictures taken from space is now helping medical researchers to establish a simple method for wide-scale screening for Alzheimer's disease. Used in analyzing magnetic resonance images (MRIs), the AlzTools 3D Slicer tool was produced by computer scientists at Spain's Elecnor Deimos, who drew on years of experience developing software for ESA's Envisat satellite to create a program that adapted the space routines to analyze human brain scans. "If...

Northern Biomass Of Earth Has Been Mapped And Measured
2013-06-26 07:53:13

ESA The biomass of the northern hemisphere’s forests has been mapped with greater precision than ever before thanks to satellites, improving our understanding of the carbon cycle and our prediction of Earth’s future climate. Accurately measuring forest biomass and how it varies are key elements for taking stock of forests and vegetation. Since forests assist in removing carbon dioxide from the atmosphere, mapping forest biomass is also important for understanding the global carbon...