US has drastically reduced greenhouse gas measurements, scientists' protest letter in Science Mag., adversely affects entire world's measurements, Canadell says satellites alone not valid, wasted
Scientists protest NOAA cutbacks on climate measurement capabilities:
.
“NOAA has stopped measuring greenhouse gas levels at a dozen ground stations, eliminated some aircraft monitoring and cut the frequency of remaining measurements in half.”...
9/4/12, “NOAA: Budget woes force a halt to climate monitoring at 12 ground stations,” eenews.net
, Lauren Morello
"The federal government is cutting back its ability to monitor greenhouse gas emissions, and scientists are crying foul.
The National Oceanic and Atmospheric Administration spends roughly $6 million per year to sample carbon dioxide, methane and nearly 20 other gases using a global network of ground stations, tall towers and aircraft….
The cuts come at a time when governments are pushing for more detailed information about sources and sinks of greenhouse gases. Scientists say the decision to shrink NOAA’s monitoring network — the world’s largest — threatens their ability to provide those answers.
“The reality is that countries are making commitments that will cost millions, if not billions, of investment in climate-related work, and governments want more certainty about what’s happening, what other countries are doing,” said Pep Canadell, executive director of the Global Carbon Project. “We barely have enough to provide what a lot of agencies are asking for. The prospect of having fewer sampling stations around the world is a frightening one.”
Canadell is one of more than 50 researchers who signed a letter, published last week in the journal Science, warning that additional cuts to NOAA’s monitoring program could harm U.S. national security and render useless the hundreds of millions of dollars that several nations, including the United States, have spent developing new CO2-monitoring satellites.…
-
Cuts could reverberate internationally
Continuous measurements of atmospheric CO2, carbon monoxide and methane form the backbone of NOAA’s monitoring network.
They
are collected at the agency’s six observatories — in Hawaii, Alaska,
Greenland, Antarctica, American Samoa and California — and seven tall
towers scattered across the United States.
NOAA supplements those measurements with air samples collected regularly in flasks on the ground and in the air,
which provide information about a broader range of gases and help
expand geographic coverage that helps scientists understand local
variations in greenhouse gas output.
The majority of the monitoring sites are run by “volunteers” who submit samples and data to NOAA at no cost. At other sites, the agency must pay for measurements — like air samples collected in flasks during regular flights of small, private planes
at 15 U.S. sites.
Those pay-to-play sites were first on the chopping block
when the recent budget cuts began. Now, with NOAA managers anticipating
a 5 percent budget reduction in fiscal 2013, scientists in and out of
the agency say they’re worried that the greenhouse gas monitoring
program will be forced to cut personnel.
Many say they’re concerned that if NOAA’s program continues to shrink, monitoring efforts in other countries could suffer.
In addition to operating the largest global network measuring
greenhouse gases and ozone-depleting substances, NOAA maintains
standards that ensure other countries doing similar work are of high
quality and in compatible formats.
The U.S. effort has served as a model — and a continuing reference — for programs in Europe, China, India and Brazil. …
Satellite data ‘wasted’ without ground monitoring
Japan’s GOSAT, now in orbit, and NASA’s Orbiting Carbon Observatory-2, still in development, are designed to provide regular measurements of atmospheric carbon dioxide in places ground measurements have not reached.
According to recent reports by the
National Academy of Sciences and JASON, an independent group of
scientists that advises the government, that kind of satellite coverage will be crucial to determine whether individual nations comply with emissions cuts outlined in future climate pacts.
But satellites cannot supplant ground-based monitoring networks, said Sander Houweling, an atmospheric scientist at Utrecht University in the Netherlands who helped organize the Science letter.
“In the foreseeable future, it is not going to be like that,”
Houweling said. “With measurements from satellites, we have to learn how
to make sure they are on the same scale as ground-based measurements.
In the current phase, we are exploring how to make use of measurements
taken from space.”
Canadell of the Global Carbon Project agreed. “This
is not threatening the need for these atmospheric, high-precision
measurements,” he said. “To the contrary, it makes them even more
critical. Otherwise, these
hundreds of millions of dollars we spend
on every single satellite get wasted.“”
.
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