Latest satellite data Stories

2009-10-17 10:08:32

A new system from an Italian company uses weather satellite data to estimate the potential of solar cell power plants and monitor their performance. The approach helps to give a faster return on investments in clean solar energy. Solar cells have been used for many years to power pocket calculators and, more recently, street signs, garden lighting and other small devices. But since the need for sustainable living has become a key issue in our society, there has been a considerable increase in...

2009-09-09 10:44:15

As part of the development process for ESA's Sentinel-3 Earth observation mission, remote-sensing experts carried out an extensive experiment campaign across southern Europe this summer. The results provide valuable insight into the imagery the mission will deliver after it is launched in 2013. For all new Earth observation missions, a crucial part of the development process, after defining and designing the instruments, is to assess the future performance of the sensors. In addition, the...

2008-12-17 17:20:00

Satellites that were designed to measure sea level over the world's oceans can serve a valuable purpose over land, a new study has found. Researchers used NASA's TOPEX/Poseidon satellite and the European Space Agency's ENVISAT satellite to measure the height and extent of flooding in North America, South America, and Asia. The study shows that satellites can supplement the measurements that the United States Geological Survey (USGS) gathers from flood gauges on the ground -- at little or no...

2008-02-05 13:06:10

The European Environment Agency has finalised an agreement with an ESA-led consortium to provide unparalleled information on air pollution, which contributes to the premature deaths of hundreds of thousands of Europeans annually. Under the agreement, the European Environment Agency (EEA) will use a service, which combines and processes satellite data with surface measurements from 29 European countries to deliver accurate information on air quality daily, to support the implementation of...

2008-01-17 08:30:00

A group of atmospheric research scientists at NASA's National Space Science and Technology Center, or NSSTC, felt a little like they were in a foreign country when they first met with representatives from the University of Alabama at Birmingham's School of Public Health recently to discuss a research partnership. "When we first got together, it was as if we were speaking entirely different languages," says NASA's Dale Quattrochi. But soon both parties began to realize how NASA satellite...

2007-11-01 14:10:07

PASADENA, Calif. - As Tropical Storm Noel churns off Florida's east coast, NASA and university scientists have announced they have developed a promising new technique for estimating the intensity of tropical cyclones from space. The method could one day supplement existing techniques, assist in designing future tropical cyclone satellite observing systems, and improve disaster preparedness and recovery efforts. The technique uses NASA satellite data, including simultaneous, accurate...

2007-10-22 08:40:55

Air pollution is becoming one of the biggest dangers for the future of the planet, causing premature deaths of humans and damaging flora and fauna. With their vantage point from space, satellites are the only way to carry out effective global measurements of air-polluting emissions and their transboundary movement. Scientists and researchers from around the world gathered at ESRIN, ESA's Earth Observation Centre in Frascati, Italy, last week to discuss the contribution of satellite data in...

2007-09-26 07:46:25

A new NASA-supported study reports that 2007 marked an overall rise in the melting trend over the entire Greenland ice sheet and, remarkably, melting in high-altitude areas was greater than ever at 150 percent more than average. In fact, the amount of snow that has melted this year over Greenland could cover the surface size of the U.S. more than twice. Marco Tedesco, a research scientist at the Joint Center for Earth Systems Technology, cooperatively managed by NASA's Goddard Space Flight...

2007-04-10 14:51:37

Scientists using NASA satellite data have found strong evidence that a major earthquake can lead to a nearly immediate increase in regional volcanic activity. The intensity of two ongoing volcanic eruptions on Indonesia's Java Island increased sharply three days following a powerful, 6.4-magnitude earthquake on the island in May 2006. The increased volcanic activity persisted for about nine days. "During this period, we found clear evidence that the earthquake caused both volcanoes to...

2006-12-20 19:40:00

Data from NASA satellites is advancing efforts that may soon allow scientists to predict when and where wildfires occur. While information from satellites and instruments have recently let scientists more quickly determine the exact location of wildfires and to monitor their movement, this research offers a step toward predicting their development and could complement data currently used in calculating fire potential across much of the United States. By studying shrublands prone to wildfire...

Word of the Day
  • A punctuation mark (/) used to separate related items of information.
  • A little rod; a twig.
This word comes from the Late Latin 'virgula,' accentual mark, a diminutive of 'virga,' rod.