Topic: NASA’s Aqua Spacecraft

NASA’s Aqua spacecraft provides scientists with relative humidity data that could help forecast Hurricane Strengths

December 3, 2012 |

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

Pasadena, CA – Forecasters could soon be better able to predict how intense tropical cyclones like Hurricane Sandy will be by analyzing relative-humidity levels within their large-scale environments, finds a new NASA-led study.

Scientists from NASA’s Jet Propulsion Laboratory, Pasadena, CA, UCLA and the University of Hawaii at Manoa analyzed relative humidity data from the Atmospheric Infrared Sounder (AIRS) instrument on NASA’s Aqua spacecraft for nearly 200 North Atlantic hurricanes between 2002 and 2010.

Hurricane Sandy as seen by the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on NASA’s Terra spacecraft on Oct. 28th, 2012, when the Category 1 storm was centered off the southeastern U.S. coast. A new NASA-led study finds that analysis of relative humidity levels in the large-scale environment of tropical cyclones may be useful in improving forecasts of their intensity. (Image credit: NASA GSFC/LANCE MODIS Rapid Response Team)

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NASA study shows Climate change likely hotter than current Projections

November 12, 2012 |

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

Pasadena, CA – A new NASA-funded study by the National Center for Atmospheric Research, Boulder, CO, finds climate model projections that show a greater rise in global temperature are likely to prove more accurate than those showing a lesser rise.

The findings, published today in the journal Science, could provide a breakthrough in the longstanding quest to narrow the range of global warming expected in coming decades and beyond.

Scientists used observations from two NASA satellite instruments, including relative humidity data similar to these, from the Atmospheric Infrared Sounder (AIRS) instrument on NASA’s Aqua spacecraft, to analyze how well leading global climate models reproduce observed relative humidity in Earth’s tropics and subtropics. The AIRS surface relative humidity data shown here are representative only and are not from the study. Areas shown in reds and yellows are the driest; blue areas the moistest. (Image credit: NASA/JPL-Caltech)

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NASA Satellites monitor Hurricane Sandy

October 30, 2012 |

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

Pasadena, CA – Hurricane Sandy is expected to affect as many as 60 million Americans this week as it combines with other weather fronts to create an anticipated ‘superstorm.’ Satellites and instruments from NASA’s Jet Propulsion Laboratory, Pasadena, CA, are busy monitoring the storm. NASA’s Atmospheric Infrared Sounder Tracks Sandy’s Approach

NASA’s Atmospheric Infrared Sounder (AIRS) instrument on NASA’s Aqua spacecraft captured this infrared image of Hurricane Sandy at 2:17pm EDT on October 29th, 2012.

NASA’s Atmospheric Infrared Sounder (AIRS) instrument on NASA’s Aqua spacecraft captured this infrared image of Hurricane Sandy, another weather front to the west and cold air coming down from Canada at 2:17pm EDT Oct. 29th. The hurricane center is the darkest purple area in the Atlantic just to the east of the New Jersey coast, reflecting Sandy’s areas of heaviest rainfall. (Image Credit: NASA/JPL-Caltech)

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