Greenhouse gases Observing SATellite "IBUKI"(GOSAT)

In Operation

Project Topics


December 6, 2012 Updated

Public release of carbon dioxide flux estimates based on observation data by IBUKI

The data of global CO2 fluxes on a monthly and regional basis for the one-year period between June 2009 and May 2010 has been publicly distributed for the first time in the world. These flux values were estimated by combining ground-based CO2 monitoring data and CO2 concentration data acquired through the improved observation method of the Greenhouse gases Observing SATellite "IBUKI." (GOSAT). The calculation method has been improved for the concentration of greenhouse gases. The usefulness of the concentration data acquired by the satellite was quantitatively verified.
In order to obtain better CO2 flux estimates, we will continue to refine the data processing algorithms for the retrieval of CO2 concentrations from GOSAT data and the estimation of CO2 fluxes.

Overview


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"IBUKI": Global efforts to protect the environment.

Global warming has become a very serious issue for human beings. Scientists have suggested that, at the rate the Earth’s temperature is rising, an extreme form of global climate change could occur in a few centuries.
In 1997, the Kyoto Protocol was adopted at the Third Session of the Conference of the Parties to the United Nations Framework Convention on Climate Change (COP3), making it mandatory for developed nations to reduce carbon dioxide emissions by six to eight per cent of their total emissions in 1990, and to meet this goal sometime between 2008 and 2012.
Furthermore, the Global Climate Observation System (GCOS) has been proposed by the World Meteorological Organization (WMO) and the United Nations Environment Program (UNEP) in order to strengthen observations of land, ocean, and space conducted by each country.


Monitoring the distribution of the density of carbon dioxide, a Greenhouse gas.

So far, the number of ground-based carbon dioxide observation points has been limited, and they have been distributed unequally throughout the world. "IBUKI" will enable the precise monitoring of the density of carbon dioxide by combining global observation data sent from space with data obtained on land, and with simulation models.
In addition, observation of methane, another Greenhouse gas, has been considered.


Major Characteristics

International Designation Code 2009-002A
Launch Date 12:54, January 23, 2009 (JST)
Launch Vehicle H-IIA Launch Vehicle No.15
Location Tanegashima Space Center
Shape

2 box shape with wing-type solar array paddles
3 7 m x 1.8 m X 2.0 m (Depth)
(Length between the tips of the paddles: 13.7 m)

Weight Approx. 1,750kg
Orbiter Sun-Synchronous Sub-Recurrent
Altitude Approx. 667km
Inclination Approx. 98 degrees
Period Approx. 98 minutes