Japan Uses Satellite to Learn More About Global Warming
The Greenhouse-Gases Observing Satellite, or Gosat, took off from Tanegashima Space Center over the weekend to measure the density of carbon dioxide and methane gas emissions in the Earth’s southern hemisphere.
“There’s a scarcity of data about carbon dioxide and methane gas emissions in jungles in the southern hemisphere and areas above the ocean,” said Hiroshi Watanabe, Gosat project office manager at Japan’s National Institute for Environment Studies, to Bloomberg.
Gosat is also called “Ibuki,” the Japanese word for “breath,” because of its efforts to observe the Earth’s “breathing” in space. The nearly two-ton satellite cost $205 million to develop and has a wingspan of about 45 feet.
It is expected to be the first of four satellites that will be launched this year to study climate change, including the National Aeronautics and Space Administration’s Orbiting Carbon Observatory and Glory satellites, and the European Space Agency’s CryoSat-2 satellite.
Carbon and methane are two of six gases regulated by the Kyoto Protocol, and are thought to be largely responsible for the greenhouse effect. Carbon dioxide levels have been monitored on the ground for about 50 years, and the World Meteorological Organization’s World Data Center for Greenhouse Gases reported that as of last year there were about 283 observation points worldwide to monitor carbon dioxide and other greenhouse gases.
Satellites such as Gosat, which will monitor 56,000 locations on Earth from an altitude of more than 400 miles, will give scientists a better perspective from which to analyze the problem, however. “From space, we can observe the Earth almost in its entirety,” said Takashi Hamazaki, GOSAT project manager at JAXA, to the Asahi Shimbun.
Adam Shake, a blogger at Twilight Earth, says he hopes the launch, and NASA’s upcoming launch of the “Orbiting Carbon Observatory,” could bring the start of a “Green Space Race.”
“There is a growing tendency for climate change and global warming skeptics and deniers to refute the findings of scientists the world over, so any new technologies that can be used to further prove the fact that Global Warming is real and that it is being caused by humans, is worth the endeavor,” Shake wrote.
Others see the satellites as aiding another area of environmental protection. Environmental publication Plenty says data gathered by the new satellite should aid in designing carbon-trading programs. “If carbon accounting ever gets truly serious, the major players will demand fair play through accurate data and assurances that the world’s carbon dioxide is doing what we think it’s doing. These satellites represent a big step towards true carbon accountability.”