Sunday February 17, 2019
Home Lead Story Balloon Missi...

Balloon Mission by NASA May Lead to Improved Weather Forecasting

The waves play major roles in transferring energy from the lower atmosphere to the mesosphere

0
//
NASA, tissue
US shutdown delays space missions but NASA not grounded: Report,

The images of a thin group of seasonal electric blue clouds on the cusp of our atmosphere captured by a new NASA balloon mission may lead to improved weather forecasting, the US space agency has said.

Data from these clouds, known as noctilucent clouds or polar mesospheric clouds (PMCs), may help scientists better understand turbulence in the atmosphere, as well as in oceans, lakes and other planetary atmospheres, NASA said in a statement on Thursday.

The NASA long-duration balloon mission observed these clouds over the course of five days at their home in the mesosphere.

Scientists have just begun to analyse the photos captured by the mission, the statement added.

NASA
NASA balloon mission captures electric blue clouds. (IANS)

“From what we’ve seen so far, we expect to have a really spectacular dataset from this mission,” said Dave Fritts, principal investigator of the PMC Turbo mission at Global Atmospheric Technologies and Sciences in Boulder, Colorado.

“Our cameras were likely able to capture some really interesting events that we hope will provide new insights into these complex dynamics,” Fritts added.

NASA’s PMC Turbo mission launched a giant balloon on July 8 to study PMCs at a height of 50 miles above the surface.

For five days, the balloon floated through the stratosphere from its launch at Esrange, Sweden, across the Arctic to Western Nunavut, Canada.

During its flight, cameras on board the balloon captured six million high-resolution images filling up 120 terabytes of data storage — most of which included a variety of PMC displays, revealing the processes leading to turbulence, NASA said.

Noctilucent clouds coalesce as ice crystals on tiny meteor remnants in the upper atmosphere.

NASA
NASA’s PMC Turbo mission launched a giant balloon on July 8 to study PMCs at a height of 50 miles above the surface. Flickr

These clouds are affected by what is known as atmospheric gravity waves — caused by the convecting and uplifting of air masses, such as when air is pushed up by mountain ranges.

The waves play major roles in transferring energy from the lower atmosphere to the mesosphere.

Also Read- Triple Talaq Now Banned In India

“This is the first time we’ve been able to visualise the flow of energy from larger gravity waves to smaller flow instabilities and turbulence in the upper atmosphere,” Fritts said.

“At these altitudes you can literally see the gravity waves breaking — like ocean waves on the beach — and cascading to turbulence,” Fritts added. (IANS)

Next Story

NASA’S Twins Study Claims, Long-term Spaceflight Not Linked to Major Health Risks

"It's almost as if the body's on high alert," said Christopher Mason, Associate Professor at Weill Cornell Medicine.

0
NASA
Spending nearly a year in orbit increased NASA astronaut Scott Kelly's immune system response, as if, at the cellular level, his body felt under attack as compared to his Earth-bound twin brother, the Washington Post reported on Friday. Pixabay

While it was previously thought that long duration spaceflight can affect the human body, even at the molecular level, new results from NASAs “Twins Study” has showed that there are no major warning signs and no reason to think humans cannot survive a two-and-a-half-year round-trip journey to Mars.

As part of the “Twins Study”, NASA astronaut Scott Kelly spent a year in space while Mark, his identical twin, stayed on Earth as a control subject to look at the effects of space travel on the human body.

Spending nearly a year in orbit increased NASA astronaut Scott Kelly’s immune system response, as if, at the cellular level, his body felt under attack as compared to his Earth-bound twin brother, the Washington Post reported on Friday.

NASA
According to report, the biggest concern is radiation as such a mission would expose astronauts to levels of radiation greater than permitted under current guidelines. That would not necessarily prevent a mission, but it remains a concern. Pixabay

These comparisons, however, has not raised any red flags about long-term spaceflight on the International Space Station (ISS), NASA officials were quoted as saying at the annual meeting of the American Association for the Advancement of Science here.

“It’s almost as if the body’s on high alert,” said Christopher Mason, Associate Professor at Weill Cornell Medicine.

The space sojourn also changed the activity of some of his genes.

“It’s mostly really good news,” Mason said, adding, “the body has extraordinary plasticity and adaptation to being in zero gravity, at least for a year”.

NASA
“It’s almost as if the body’s on high alert,” said Christopher Mason, Associate Professor at Weill Cornell Medicine. Pixabay

According to Craig Kundrot, Director of NASA’s space life and physical sciences division, so far the space agency’s research found nothing that would make a Mars mission impossible.

Also Read: Google To Test Updating Pre-loaded Apps Without Signing Into Account
According to report, the biggest concern is radiation as such a mission would expose astronauts to levels of radiation greater than permitted under current guidelines. That would not necessarily prevent a mission, but it remains a concern.

However, Kundrot cautioned that the twin study has only two people as samples. “We don’t regard any of this as conclusive, but on the whole it’s encouraging,” he said, adding, “there are no new major warning signs”. (IANS)