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Latest Aqua Stories

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2010-10-07 18:00:00

NASA satellites have collected data as the Atlantic Ocean's Tropical Depression 17 has undergone two changes in less than 24 hours. Since Oct. 6, the depression has strengthened and has tropical storm-force winds and has morphed from a sub-tropical storm into a tropical storm. After a United States Air Force Reserve reconnaissance flight subtropical depression seventeen was upgraded by the National Hurricane Center (NHC) to subtropical storm Otto on Oct. 6 at 5 p.m. EDT (2100 UTC). On Oct. 6...

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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...

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2010-09-23 14:57:37

NASA's Aqua satellite has peered into the cloud tops of Tropical Storm Malakas and derived just how cold they really are, giving an indication to forecasters of the strength of the storm. The Atmospheric Infrared Sounder instrument, known as AIRS has the ability to determine cloud top and sea surface temperatures from its position in space aboard NASA's Aqua satellite. Cloud top temperatures help forecasters know if a storm is powering up or powering down. When cloud top temperatures get...

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2010-09-20 21:33:13

The Moderate Resolution Imaging Spectroradiometer or MODIS, is an instrument that flies on NASA's Aqua and Terra satellites and provides incredible views of tropical cyclones like Hurricane Igor, from its vantage point in space. Imagery from the MODIS instruments on these two satellites captured from Sept. 18 to 20 showed that powerful Hurricane Igor in the Atlantic Ocean is morphing from a rounded storm to more of a comma-shaped storm.The MODIS instrument on NASA's Terra satellite captured a...

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2010-09-15 14:13:40

Hurricane Julia intensified rapidly overnight and is now a Category 4 hurricane on the Saffir-Simpson Scale and NASA's Aqua, Terra and TRMM satellites captured clues as they passed over her from space. The Tropical Rainfall Measuring Mission (TRMM) satellite passed over intensifying hurricane Julia during the afternoon of Sept. 14 and captured very heavy rain falling at 1807 UTC (2:07 p.m. EDT). That heavy rainfall was a clue that she would intensify overnight, and today, Sept. 15, she has...

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2010-09-14 14:08:55

NASA satellites provide infrared images to forecasters that show temperature, and today's imagery of powerful Hurricane Igor showed the storm's perfect form and the warm ocean waters around it that are keeping it fueled. NASA's infrared data also revealed a huge difference of 170 degrees between the cold cloud tops in Hurricane Igor and the warm sea surface temperatures powering it below. When NASA's Aqua satellite passed over Igor on Sept. 14 at 14:47 UTC (10:47 a.m. EDT) the Atmospheric...

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2010-09-14 08:38:05

The Arctic Ocean is covered by a dynamic layer of sea ice that grows each winter and shrinks each summer, reaching its yearly minimum size each fall. While the 2010 minimum remains to be seen, NASA's Aqua satellite captured this snapshot on Sept. 3. How does the Aqua satellite "see" sea ice? Microwaves. Everything on Earth's surface -- including people -- emits microwave radiation, the properties of which vary with the emitter, thereby allowing the AMSR-E microwave sensor on Aqua to map the...

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2010-08-24 09:29:43

NASA satellites working in high gear NASA's Aqua, Terra and TRMM satellites are providing data on Hurricane Danielle daily, and forecasters are using that data to help determine Danielle's behavior and movement. At 5 p.m. EDT yesterday, August 23, when Danielle became a hurricane, these NASA satellites fed forecasters data on cloud extent and formation, cloud top temperatures, pressure, sea surface temperatures, rainfall rates within the storm and more factors. By 5 a.m. EDT today, August 24,...

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2010-08-12 10:25:00

A series of large wildfires burning across western and central Russia, eastern Siberia and western Canada has created a noxious soup of air pollution that is affecting life far beyond national borders. Among the pollutants created by wildfires is carbon monoxide, a gas that can pose a variety of health risks at ground level. Carbon monoxide is also an ingredient in the production of ground-level ozone, which causes numerous respiratory problems. As the carbon monoxide from these wildfires is...

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2010-08-12 08:44:53

NASA captured infrared imagery of Dianmu entering the Sea of Japan on August 11. Tropical Storm Dianmu made a quick track over South Korea and has already emerged in the Sea of Japan. She's on track for crossing northern Japan and then moving into the North Western Pacific Ocean. The Atmospheric Infrared Sounder (AIRS) instrument onboard NASA's Aqua satellite captured an infrared image of Dianmu on August 11 at 4:29 UTC (12:29 a.m. EDT). That showed her center exiting South Korea and entering...


Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.
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