Navigation Links
Tracking shuttle exhaust reveals more information about atmospheric winds
Date:8/28/2012

On July 8, 2011 the Space Shuttle Atlantis launched for the very last time. On that historic day, as the world watched its last ascent up into orbit and commentators discussed the program's contributions to space flight and scientific research over 20 years, the shuttle helped spawn one last experiment. As the shuttle reached a height of about 70 miles over the east coast of the U.S., it released as it always did shortly after launch 350 tons of water vapor exhaust.

As the plume of vapor spread and floated on air currents high in Earth's atmosphere, it crossed through the observation paths of seven separate sets of instruments. A group of scientists, reporting in online in the Journal of Geophysical Research on August 27, 2012, tracked the plume to learn more about the airflow in the Mesosphere and Lower Thermosphere (MLT) -- a region that is typically quite hard to study. The team found the water vapor spread much faster than expected and that within 21 hours much of it collected near the arctic where it formed unusually bright high altitude clouds of a kind known as polar mesospheric clouds (PMCs). Such information will help improve global circulation models of air movement in the upper atmosphere, and also help with ongoing studies of PMCs.

"Polar mesospheric clouds are the highest clouds on Earth," says space scientist Michael Stevens at the Naval Research Laboratory, Washington, who is first author on the paper. "They shine brightly when the sun is just below the horizon and typically occur over polar regions in the summer. There is some evidence that they are increasing in number and people want to know if this is indicative of climate change or something else that we don't understand."

Since they shine at night, PMCs are also known as noctilucent clouds, and they can serve as an indicator not just of temperature changes, but also of how currents and waves move high in Earth's atmosphere. A visible cloud of water va
'/>"/>

Contact: Susan Hendrix
Susan.m.hendrix@nasa.gov
301-286-7745
NASA/Goddard Space Flight Center
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. UC research: Tracking Lake Erie water snake in fight against invasive fish
2. Genetic markers for tracking species
3. Elephant seal tracking reveals hidden lives of deep-diving animals
4. uAttend Time Tracking Solutions Available at TimeClockDeals.com
5. Probing the roots of depression by tracking serotonin regulation at a new level
6. Tracking the effects of prenatal alcohol exposure through to 9 years of age
7. Vitamin B12 deficiency: Tracking the genetic causes
8. Research reveals first evidence of hunting by prehistoric Ohioans
9. Study reveals how monarch butterflies recolonize northern breeding range
10. Circadian rhythms have profound influence on metabolic output, UCI study reveals
11. Unexpected discovery reveals a new mechanism for how the cerebellum extracts signal from noise
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Tracking shuttle exhaust reveals more information about atmospheric winds
(Date:9/17/2014)... social behavior by studying nonhuman mammals and primates, but ... their unusually large brains relative to their body size ... environment---not merely in a large population of cooperating creatures, ... setting of alliances and competitors. The same is true ... social carnivores, like hyenas and lions. , A new ...
(Date:9/16/2014)... women in Australia is increased by lower socioeconomic ... September) in BJOG: An International Journal of ... high standards of living; however, existing research has ... indigenous and non indigenous Australians. , This case-control ... socioeconomic position on severe maternal morbidities associated with ...
(Date:9/16/2014)... "molecular brakes" that time the generation of important cells ... cells" translate sound waves into electrical signals that are ... If the arrangement of the cells is disordered, hearing ... will be published in The Journal of Neuroscience ... Hey2 act as brakes to prevent hair cell generation ...
Breaking Biology News(10 mins):Being social: Learning from the behavior of birds 2New study examines the impact of socioeconomic position & maternal morbidity in Australia 2New study examines the impact of socioeconomic position & maternal morbidity in Australia 3Hey1 and Hey2 ensure inner ear 'hair cells' are made at the right time, in the right place 2
... Journal of Animal Science , meat scientists report that ... at the USDA-ARS, Roman L. Hruska US Meat Animal Research ... muscle (LM) tenderness and other meat quality traits between different ... The pigs used in this study came from one ...
... Researchers from North Carolina State University have developed a ... approaches and can be used to create technologies with ... lithography can be used to manufacture chips for use ... as proteins or genetic material associated with specific medical ...
... top wheat experts today reported a breakthrough in their ability ... rapidly mutating wheat pathogen called stem rust that threatens wheat ... by farmers and scientists from fields and laboratories, the creators ... 42 million hectares of wheat in 27 developing countries in ...
Cached Biology News:Chilling methods could change meat tenderness 2Researchers develop new, less expensive nanolithography technique 2Researchers launch new 'Rust-Tracker' to monitor deadly wheat fungus in 27 nations 2Researchers launch new 'Rust-Tracker' to monitor deadly wheat fungus in 27 nations 3Researchers launch new 'Rust-Tracker' to monitor deadly wheat fungus in 27 nations 4Researchers launch new 'Rust-Tracker' to monitor deadly wheat fungus in 27 nations 5Researchers launch new 'Rust-Tracker' to monitor deadly wheat fungus in 27 nations 6
(Date:9/17/2014)... WA , Sept. 17, 2014 /PRNewswire/ - Oncothyreon ... it intends to offer and sell shares of its ... separate but concurrent underwritten public offerings.  The Series A ... of Oncothyreon Common Stock, provided that conversion will be ... affiliates would beneficially own more than 4.99% of the ...
(Date:9/17/2014)... A biodegradable polymer can be ... bacteria, fungi, and algae into smaller units (monomers) ... compounds, carbon dioxide, and humus in a specified ... improved costs, biodegradable polymers are proving to be ... conventional polymers. Primary factors that are responsible for ...
(Date:9/17/2014)... Intarcia Therapeutics, Inc. today announced the presentation ... cost and predictability of non-adherence in type 2 diabetes ... the European Association for the Study of Diabetes (EASD). ... Ph.D., of Analysis Group, Inc. presented data from the ... to characterize the prevalence of non-adherence and serial non-adherence, ...
(Date:9/17/2014)... , Sept. 17, 2014 RXi ... biotechnology company focused on discovering, developing and commercializing ... RNA-targeted technologies, today announced that it has been granted ... Trademark Office on its unique delivery system for ... to phagocytic cells for the treatment of diseases ...
Breaking Biology Technology:Oncothyreon Announces Proposed Public Offerings 2Growing Demand for Eco-Friendly Products Drives the Global Biodegradable Polymers Market, According to New Report by Global Industry Analysts, Inc. 2Growing Demand for Eco-Friendly Products Drives the Global Biodegradable Polymers Market, According to New Report by Global Industry Analysts, Inc. 3Intarcia Reveals New Insights At EASD Meeting Characterizing The Burden Of Poor Control And Non-Adherence To Anti-Diabetic Therapies 2Intarcia Reveals New Insights At EASD Meeting Characterizing The Burden Of Poor Control And Non-Adherence To Anti-Diabetic Therapies 3Intarcia Reveals New Insights At EASD Meeting Characterizing The Burden Of Poor Control And Non-Adherence To Anti-Diabetic Therapies 4Intarcia Reveals New Insights At EASD Meeting Characterizing The Burden Of Poor Control And Non-Adherence To Anti-Diabetic Therapies 5RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 2RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 3RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 4
... , , ... , ... for culturing cells in a BioFlo ,110 benchtop fermentor/bioreactor system. ... and control modules to,enable growth of a wide variety of cultures, ...
... Microscale on-membrane PMF analysis can be ... function of a chemical printer (Refer to AXIMA Application 14, 17). ... chemical printer enables MS analysis with high mass accuracy ( , ... separated by 2-dimensional electrophoresis were transferred to a PVDF membrane for ...
... Achieving Ultra Fast Liquid Chromatography ... , Prominence UFLC has ... this respect, we are successful,in demonstrating high speed and separation performance,without ... with other fast,LC systems., Smaller ...
Cached Biology Technology:CHO Cell Culture Application Using a BioFlo 110 Benchtop Bioreactor 2CHO Cell Culture Application Using a BioFlo 110 Benchtop Bioreactor 3CHO Cell Culture Application Using a BioFlo 110 Benchtop Bioreactor 4Direct On-Membrane MS/MS Analysis using the Chemical Printer (CHIP-1000) and AXIMA-QIT 2Prominence UFLC 2Prominence UFLC 3Prominence UFLC 4Prominence UFLC 5Prominence UFLC 6Prominence UFLC 7Prominence UFLC 8
... for biological safety labs (BSL) and ... Class 10/ISO 3) and easy sterilization. ... surfaces that are easy to wipe ... simplify cleaning. Unique double-wall panel design ...
... cleanroom for biological safety labs (BSL) ... (to Class 10/ISO 3) and easy ... ultra-smooth surfaces that are easy to ... corners simplify cleaning. Unique double-wall panel ...
Sigmas E-TOXATE (Limulus Amebocyte Lysate) test kits are intended for the detection and semiquantitation of endotoxins for research purposes. sensitivity 0.05-0.1 EU/mL...
... testing at various temperatures, this chamber ... a clean heating unit to maintain ... 140F. Transparent panels allow full visibility, ... access to the work area. Includes ...
Biology Products: