Quantcast
Environmental News for a Healthier Planet and Life

NASA: Porter Ranch Gas Leak Was So Big It Could Be Seen From Space

Energy

California's 2015 methane leak was so large it could be seen from space, according to a National Aeronautics and Space Administration (NASA) statement released Tuesday.

Comparison of detected atmospheric methane over Aliso Canyon, acquired 11 days apart in January 2016. The left picture was taken by NASA's Airborne Visible/Infrared Imaging Spectrometer on a NASA ER-2 aircraft at 4.1 miles altitude. The right picture was taken by the Hyperion instrument on NASA's Earth Observing-1 satellite in low-Earth orbit. Photo credit: NASA

Aliso Canyon's methane leak in Porter Ranch in October 2015 marked the first time an orbiting spacecraft measured a leak from a single facility on Earth. The leak was spotted by the Hyperion spectrometer on NASA's Earth Observing-1, according to a study by David R. Thompson, of NASA's Jet Propulsion Laboratory, recently published in the Geophysical Research Letters journal.

NASA's statement explained: "The observation ... is an important breakthrough in our ability to eventually measure and monitor emissions of this potent greenhouse gas from space."

The Hyperion spectrometer was able to detect methane on three separate occasions, Thompson's paper states. NASA said the research was part of an investigation into the accidental leak, which released 94,500 tons of methane into the atmosphere, according to the latest data. The orbit observations were consistent with airborne measurements, NASA reported.

Equipment and machinery is seen in Aliso Canyon facility. Photo credit: Scott L, Wikimedia commons

Developing more instruments with similar capabilities to the Hyperion, or with even better ones, will help scientists understand the amount of methane produced by human activities and spot areas on Earth's surface that are big releasers.

"The percentage of atmospheric methane produced through human activities remains poorly understood," Thompson said. "Future instruments with much greater sensitivity on orbiting satellites can help resolve this question by surveying the biggest sources around the world, so that we can better understand and address this unknown factor in greenhouse gas emissions."

The Hyperion spectrometer measures discreet wavelengths of light. It scans in "many hundreds of wavelengths," Thompson told The Washington Post, allowing scientists to identify specific gases.

“Every gas leaves its fingerprint on the light that passes through it," he said. “So what the algorithms we applied do is they examine the imagery from the spacecraft to see the very unique spectral signature of methane, and then map it over wide locations."

Caltech in Pasadena, California; GFZ Helmholtz Centre in Potsdam, Germany; and NASA's Goddard Space Flight Center in Greenbelt, Maryland, also participated in the study.

YOU MIGHT ALSO LIKE:

Dangerous Heat Wave to Grip the U.S.: 10 Ways to Survive Extreme Heat

TransCanada Wins Bid for Underwater Gas Pipeline Across Gulf of Mexico

Toxic Chemicals Found in Residents Living Near Oil and Gas Operations in Pavillion, Wyoming

Stockholm Divests From Coal, Oil and Gas

EcoWatch Daily Newsletter

Deserted view of NH24 near Akshardham Temple on day nine of the 21-day nationwide lockdown to curb the spread of coronavirus on April 2, 2020 in New Delhi, India. Raj K Raj / Hindustan Times via Getty Images

India is home to 21 of the world's 30 most polluted cities, but recently air pollution levels have started to drop dramatically as the second-most populated nation endures the second week of a 21-day lockdown amidst coronavirus fears, according to The Weather Channel.

Read More Show Less
A Unicef social mobilizer uses a speaker as she carries out public health awareness to prevent the spread and detect the symptoms of the COVID-19 coronavirus by UNICEF at Mangateen IDP camp in Juba, South Sudan on April 2. ALEX MCBRIDE / AFP / Getty Images

By Eddie Ndopu

  • South Africa is ground zero for the coronavirus pandemic in Africa.
  • Its townships are typical of high-density neighbourhoods across the continent where self-isolation will be extremely challenging.
  • The failure to eradicate extreme poverty is a threat beyond the countries in question.
Read More Show Less
Sponsored
The outside of the Food and Drug Administration headquarters in White Oak, Md. on Nov. 9, 2015. Al Drago / CQ Roll Call

The U.S. Food and Drug Administration has approved the use of two malarial drugs to treat and prevent COVID-19, the respiratory infection caused by the SARS-CoV-2 coronavirus, despite only anecdotal evidence that either is proven effective in treating or slowing the progression of the disease in seriously ill patients.

Read More Show Less
Some speculate that the dissemination of the Antarctic beeches or Nothofagus moorei (seen above in Australia) dates to the time when Antarctica, Australia and South America were connected. Auscape / Universal Images Group / Getty Images

A team of scientists drilled into the ground near the South Pole to discover forest and fossils from the Cretaceous nearly 90 million years ago, which is the time when dinosaurs roamed the Earth, as the BBC reported.

Read More Show Less
The recovery of elephant seals is one of the "signs of hope" that scientists say show the oceans can recover swiftly if we let them. NOAA / CC BY 2.0

The challenges facing the world's oceans are well known: plastic pollution could crowd out fish by 2050, and the climate crisis could wipe out coral reefs by 2100.

Read More Show Less