Latest CALIPSO Stories

2011-01-25 06:55:00

European scientists are being asked whether they still want to go ahead with the European Space Agency's (ESA) space laser mission. The EarthCARE satellite would study the role clouds and atmospheric particles play in a changing climate. However, difficulties in developing the spacecraft's lidar instrument means the cost of the venture will rise from $614 to $805 million. ESA is now reviewing the science value and technical risks of proceeding with the mission. "European Space Agency...

2010-10-27 11:55:00

Mention the "A-Train" and most people probably think of the jazz legend Billy Strayhorn or perhaps New York City subway trains "” not climate change. However, it turns out that a convoy of "A-Train" satellites has emerged as one of the most powerful tools scientists have for understanding our planet's changing climate. The formation of satellites "” which currently includes Aqua, CloudSat, Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) and Aura...

2010-10-06 13:14:32

Using data from several research satellites, scientists will spend the next three years trying to understand the climate impacts of about 770 million tons of dust carried into the atmosphere every year from the Sahara Desert. Some Saharan dust falls back to Earth before it leaves Africa. Some of it streams out over the Atlantic Ocean or Mediterranean Sea, carried on the wind as far away as South America and the southeastern U.S. All of it has an as-yet unmeasured impact on Earth's energy...

2010-07-02 11:16:37

Dozens of scientists descended on Sacramento, Calif., in June hoping for what most of us don't want to see during hot summer days: thick, sooty haze. The team of some sixty researchers from across the country and several universities and government agencies -- including NASA scientists and aircraft -- took to the skies to sort out one of the stickiest questions in climate science: What effects do tiny aerosol particles in that haze --particularly those containing carbon -- have on the Earth's...

2010-06-04 11:15:00

HAMPTON, Va., June 4 /PRNewswire-USNewswire/ -- Twenty three New Orleans middle school teachers will get the opportunity next week to strengthen their math and science teaching skills at a NASA-sponsored education workshop. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) NASA is sponsoring the workshop as part of its outreach effort to improve STEM (Science, Technology, Engineering and Math) education in the...

2010-05-30 09:20:00

One thought to come out of a meeting of 50 experts gathered this week in Frascati is for Europe to require space-born lasers to help provide information on the vertical scale of volcanic ash clouds. This information could be used to work out ash concentration levels, helping scientists determine the risk to aircraft engines. Data from the U.S. Calipso lidar was shown to be very effective. The European Space Agency currently has two lidar (light detection and ranging) missions in the works....

2010-05-18 09:15:03

The air we breathe doesn't always come from our own backyard. In fact, sometimes it doesn't even come from our neighbors. On April 22, 2010, a NASA satellite captured the appearance of a large dust cloud over the eastern coast of United States that originated on the other side of the world -- in China. "Dust can stimulate the production of more clouds, altering local weather and potentially the climate," said Zhoayan Liu, a researcher at the National Institute of Aerospace and NASA's Langley...

2010-05-12 11:27:25

NASA has mobilized its remote-sensing assets to help assess the spread and impact of the Deepwater Horizon BP oil spill in the Gulf of Mexico at the request of U.S. disaster response agencies. As part of the national response to the spill, NASA deployed its instrumented research aircraft the Earth Resources-2 (ER-2) to the Gulf on May 6. The agency is also making extra satellite observations and conducting additional data processing to assist the National Oceanic and Atmospheric...

2010-05-06 10:50:00

The volcanic activity that has recently happened in Iceland is making the case for a new satellite tracking instruments. As ash from Eyjafjallajokull grounded more flights this week, Dr. Fred Prata, a remote sensing expert, told an Earth sciences meeting in Vienna that current monitoring from space was good but not good enough. "Of the present suite of satellite instruments, none were developed for the volcanic ash problem," he said. "Therefore, they are sub-optimal for detecting and...

2010-01-05 09:35:37

After nearly 5 years of concurrent operations with the Afternoon Constellation, known as the "A-Train," the PARASOL satellite is going on another orbit "track." The A-Train includes a number of NASA satellites that orbit the Earth one behind the other on the same track and until this month, PARASOL has been part of that train. PARASOL is an Earth observation mission, managed by the French Space Agency (CNES). PARASOL stands for "Polarization and Anisotropy of Reflectances for Atmospheric...

Word of the Day
  • An evil spirit; a devil.
  • A nightmare.
  • In astrology, the twelfth house of a scheme or figure of the heavens: so called from its signifying dreadful things, such as secret enemies, great losses, imprisonment, etc.
'Cacodemon' comes from a Greek term meaning 'evil genius.'