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Topic: Amazon

NASA Study reveals Amazon Drying Out due to Human Activities

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – A new NASA study shows that over the last 20 years, the atmosphere above the Amazon rainforest has been drying out, increasing the demand for water and leaving ecosystems vulnerable to fires and drought. It also shows that this increase in dryness is primarily the result of human activities.

Scientists at NASA’s Jet Propulsion Laboratory in Pasadena, California, analyzed decades of ground and satellite data over the Amazon rainforest to track both how much moisture was in the atmosphere and how much moisture was needed to maintain the rainforest system.

The Amazon rainforest. (Marcio Isensee e Sa, Adobe Stock)

The Amazon rainforest. (Marcio Isensee e Sa, Adobe Stock)

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NASA’s ECOSTRESS takes images of Amazon Fires

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Ecosystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) captured imagery of fires in the Amazon regions of Brazil and Bolivia on Aug. 23, 2019.

The red areas in the images – in eastern Bolivia and northern Brazil – are where surface temperatures exceeded the maximum measurable temperature of the instrument’s sensor (approximately 220 degrees Fahrenheit, or 104 degrees Celsius), highlighting the burning areas along the fire fronts.

ECOSTRESS imagery of fires burning in the Bolivian Amazon on Aug. 23, 2019. Red areas show regions hotter than the sensor was designed to measure (approximately 220 degrees Fahrenheit, or 104 degrees Celsius). Dark wispy areas indicate thick smoke. (NASA/JPL-Caltech)

ECOSTRESS imagery of fires burning in the Bolivian Amazon on Aug. 23, 2019. Red areas show regions hotter than the sensor was designed to measure (approximately 220 degrees Fahrenheit, or 104 degrees Celsius). Dark wispy areas indicate thick smoke. (NASA/JPL-Caltech)

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NASA’s AIRS instrument Maps Carbon Monoxide from Amazon Fires

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Atmospheric Infrared Sounder (AIRS) instrument, aboard the Aqua satellite, has produced new data that shows the movement high in the atmosphere of carbon monoxide associated with fires in the Amazon region of Brazil.

This time series maps carbon monoxide at an altitude of 18,000 feet (5,500 meters) from August 8th-22nd, 2019. As the series progresses, the carbon monoxide plume grows in the northwest Amazon region then drifts in a more concentrated plume toward the southeastern part of the country.

This photo shows carbon monoxide associated with fires from the Amazon region in Brazil. Made with data collected from the Atmospheric Infrared Sounder (AIRS) on NASA's Aqua satellite, the images map carbon monoxide at approximately 18,000 feet (5,500 meters) altitude. (NASA/JPL-Caltech)

This photo shows carbon monoxide associated with fires from the Amazon region in Brazil. Made with data collected from the Atmospheric Infrared Sounder (AIRS) on NASA’s Aqua satellite, the images map carbon monoxide at approximately 18,000 feet (5,500 meters) altitude. (NASA/JPL-Caltech)

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Marsha Blackburn Report: This Week From Tennessee – August 18th, 2019

 

U.S. SenateNashville, TN – Middle Tennessee and East Tennessee are both home to some of the prettiest country in the state–and some seriously hard workers! I spent another week hearing from local leaders and business owners about some of the area’s biggest challenges, and brainstorming ways to keep the economy thriving.

I stopped by the female-owned Crescent Sock Company in McMinn County. The owners’ ancestors played a big role in the women’s suffrage movement. Cathy and Sandra are descendants of Harry T. Burn, a local lawmaker whose vote made Tennessee the 36th and final state needed to ratify the 19th Amendment.

Senator Marsha Blackburn.

Senator Marsha Blackburn.

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American Red Cross in urgent need of Blood Donations

 

American Red CrossNashville, TN – With many regular donors delaying giving to take final summer vacations and prepare for school to start, the American Red Cross has an emergency need for blood and platelet donations to help end a summer blood shortage.

Thomas Brown finishes giving blood with American Red Cross staff member Alex White. (Amanda Romney, American Red Cross)

Thomas Brown finishes giving blood with American Red Cross staff member Alex White. (Amanda Romney, American Red Cross)

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American Red Cross reports Emergency Blood Shortage, donors needed

 

American Red CrossNashville, TN – To help address the current emergency blood shortage, all who come to give blood or platelets with the American Red Cross from now through August 29th will receive a $5.00 Amazon.com Gift Card via email.

Currently, the Red Cross has less than a three-day supply of most blood types available and less than a two-day supply of type O blood.

American Red Cross - Emergency All Types Needed. (American Red Cross) «Read the rest of this article»

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NASA Satellite data reveals Amazon Rainforest Drought has long lasting effect

 

Written by Carol Rasmussen
NASA’s Earth Science News Team

NASA - National Aeronautics and Space AdministrationWashington, D.C. – A single season of drought in the Amazon rainforest can reduce the forest’s carbon dioxide absorption for years after the rains return, according to a new study published in the journal Nature. This is the first study to quantify the long-term legacy of an Amazon drought.

A research team from NASA’s Jet Propulsion Laboratory in Pasadena, California, and other institutions used satellite lidar data to map tree damage and mortality caused by a severe drought in 2005. In years of normal weather, the undisturbed forest can be a natural carbon “sink,” absorbing more carbon dioxide from the atmosphere than it puts back into it.

This image, taken during a September 2010 drought, shows a line of dead and damaged trees after a surface fire in the Amazon rainforest in western Brazil. When dryer-than-normal conditions exist, fires from the open edges encroach on the forests and burn dry and stressed trees. Under normal conditions, when the rainforests are wetter, this is far less common. (NASA/JPL-Caltech)

This image, taken during a September 2010 drought, shows a line of dead and damaged trees after a surface fire in the Amazon rainforest in western Brazil. When dryer-than-normal conditions exist, fires from the open edges encroach on the forests and burn dry and stressed trees. Under normal conditions, when the rainforests are wetter, this is far less common. (NASA/JPL-Caltech)

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Clarksville Police dispatched to Killington Drive for Suspicious Package

 

Clarksville Police Department

Clarksville Police Department - CPDClarksville, TN – Clarksville Police report that Tuesday Night, July 10th, 2018 shortly after 8:00pm a man at 2272 Killington Drive found a large package from Amazon in his driveway, delivered by UPS.  The package had his name on it.  

When he picked the package up, he thought he heard ticking and strange noises.  He set the package down at the end of his driveway and call 911. 

Clarksville Police respond to a suspicious package at 2272 Killington Drive Tuesday night.

Clarksville Police respond to a suspicious package at 2272 Killington Drive Tuesday night.

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NASA lists Five Things you may not know about GRACE Follow-On Mission launching May 22nd

 

Written by Carol Rasmussen
NASA’s Earth Science News Team

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Scheduled to launch no earlier than May 22nd, 2018 the twin satellites of the Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) mission, a collaboration between NASA and the German Research Centre for Geosciences (GFZ), will continue the work of monitoring changes in the world’s water cycle and surface mass, which was so well performed by the original GRACE mission.

There are far more than five things to say about this amazing new-old mission; but here are a few favorite facts.

Artist's illustration of the GRACE-FO satellites in orbit. (NASA)

Artist’s illustration of the GRACE-FO satellites in orbit. (NASA)

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NASA ends Tropospheric Emission Spectrometer instrument’s mission

 

Written by Carol Rasmussen
NASA’s Earth Science News Team

NASA - National Aeronautics and Space AdministrationWashington, D.C. – On January 31st, NASA ended the Tropospheric Emission Spectrometer’s (TES) almost 14-year career of discovery. Launched in 2004 on NASA’s Aura spacecraft, TES was the first instrument designed to monitor ozone in the lowest layers of the atmosphere directly from space. Its high-resolution observations led to new measurements of atmospheric gases that have altered our understanding of the Earth system.

TES was planned for a five-year mission but far outlasted that term.

TES collected spectral "signatures," illustrated here, of ozone and other gases in the lower atmosphere. (NASA)

TES collected spectral “signatures,” illustrated here, of ozone and other gases in the lower atmosphere. (NASA)

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