An Earth observation satellite conceived by former Vice President Al Gore — but
banished to a Maryland warehouse by foes of climate change after George W. Bush
beat Gore for the presidency — could get a ride into space as early as 2014.
The National Oceanic and Atmospheric Administration wants about $23 million
next year to continue a quiet reboot of the satellite, and spending bills
circulating in Congress show that lawmakers — so far — are willing go along with
it.
But given the satellite’s history, supporters won’t breathe easy until the
Deep Space Climate Observatory rises from a launchpad
"It’s been a long road," said Francisco Valero, the project’s principal
investigator.
The probe’s tale begins in 1998 at the Massachusetts Institute of Technology,
where Gore outlined the concept for a NASA satellite that could continuously
monitor Earth — and beam back pictures 24-7 — from an orbit 1 million miles
away. He named it "Triana," after Rodrigo de Triana, the sailor in Christopher
Columbus’ crew who first spied the New World.
The reason for the million-mile orbit was twofold.
The satellite’s instruments could make large-scale observations about global
climate change — a vast improvement over the narrow segments of the planet
provided by closer-in satellites.
"It’s like looking at the forest and looking at every tree simultaneously,"
Valero said.
But as important to Gore — who after he lost the presidency made the
Oscar-winning documentary "An Inconvenient Truth" about climate change — the
satellite would offer environmentalists a live view of the planet similar to the
iconic "Blue Marble" photo of Earth taken during the Apollo era.
"This new satellite ... will allow people around the globe to gaze at our
planet as it travels in its orbit around the sun for the first time in history,"
said Gore at the time. He added that the probe could "awaken a new generation to
the environment."
On those orders, NASA spent about $100 million on the satellite — only to see
its launch delayed and ultimately canceled after Republican leaders in Congress
raised questions about its cost and scientific worth.
Among them was former U.S. Rep. Dave Weldon, R-Fla., who said the so-called
"GoreSat" was nothing more than an expensive "screensaver" and dismissed its
possible contributions to climate-change science.
Now running for U.S. Senate, Weldon reiterated his concerns.
"It was a pet project of Al Gore’s," he said. "I think it’s still
questionable."
After Bush’s election in 2000, the satellite was consigned to storage at a
Maryland warehouse. But in 2008, NOAA and the Air Force moved to rescue it for a
mission that had nothing to do with climate change or inspiring pictures.
One of the instruments aboard the satellite was a sensor that can monitor
disturbances in solar weather, including flare-ups that have the potential to
wreak havoc on global communications.
The U.S. currently has only one satellite that can provide an early warning
of these disturbances. That probe, the Advanced Composition Explorer, was
launched in 1997 and already is more than a decade beyond its design life.
Losing that probe without a replacement, said NOAA scientists, would
devastate their ability to predict space-weather events that have the capability
of disabling everything from power grids to airplane communications.
"From an operations point of view, it is if you are doing hurricane
forecasting in Florida and all of a sudden you don’t have any (sensor) buoys
offshore," said Joseph Kunches of NOAA’s Space Weather Prediction Center in
Colorado
Testing of the Deep Space Climate Observatory showed the probe could handle
its new assignment — while still performing the mission assigned by Gore — and
this year NOAA began a multiyear, $85 million effort to revive and operate the
spacecraft.
That price tag, however, does not include launch costs, which NOAA said were
still under evaluation by the Air Force and could run in the tens of millions of
dollars.
NASA documents indicate that the satellite could launch in 2014, possibly
from Kennedy Space Center.
In the meantime, lead scientist Valero said he is once again preparing for a
mission he first joined 14 years ago.
Slated for inclusion on the spacecraft are instruments that can measure
aerosols in the atmosphere and changes in atmospheric temperature and radiation.
These are key, Valero said, to settling the question of global warming and
humanity’s contribution to it.
"We want to obtain data that allows the scientific world to come up with a
definitive answer to (the question of) global warming," said Valero, of the
Scripps Institution of Oceanography.
"We want to prove it with data so there is
more discussion about it."
By Mark K. Matthews@Orlando Sentinel
No comments:
Post a Comment