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Greenhouse gases Observing SATellite (GOSAT); Contribution to Science and Policy Akio TAKEMOTO Ministry of the Environment Japan Dec 4st, 2015 the COP21 side event at the Japan Pavilion Table of Contents Overview of the GOSAT Global

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Greenhouse gases Observing SATellite (GOSAT); Contribution to Science and Policy

Akio TAKEMOTO Ministry of the Environment Japan

Dec 4st, 2015 the COP21 side event at the Japan Pavilion

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SLIDE 2

Table of Contents

  • Overview of the GOSAT
  • Global GHGs monitoring
  • Observation of anthropogenic GHGs

concentration

– CO2 over Mega-cities comparative analysis with emission data – CH4 comparative analysis with emission data

  • Way forward
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Greenhouse gases Observing SATellite (GOSAT);

(Launch : 23rd, Jan. 2009) - )

MOEJ NIES JAXA

JAXA: Japan Aerospace Exploration Agency

  • Developing sensors
  • Developing, launching, and operating

the satellite

  • Receiving and recording the
  • bservational data
  • Processing and calibrating Level 1 data

NIES: National Institute for Environmental Studies

  • Developing and improving the

methods to derive greenhouse gas concentrations

  • Producing , validating, and distributing

the higher-level products

  • Estimating carbon fluxes

MOEJ : Ministry of the Environment Japan

  • Utilizing GOSAT-data for policy
  • Contributing to international efforts to

reduce carbon emissions

Shared Responsibilities

  • Supporting the undertakings of

each other

  • Managing the Science Team
  • Promoting data utilization
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GOSAT Observation Mechanism

Provided by JAXA

GOSAT GHG Observation Point: ca. 13000

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GOSAT Observation Advantage

http://www.satnavi.jaxa.jp/project/gosat/

Earth Surface Observation Point:

  • ca. 260

http://oco.jpl.nasa.gov/images/oco/OCO_column.jpg

Whole atmosphere (surface to the top) GOSAT GHG Observation Point:

  • ca. 13000

0 km

  • ca. 70 km
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GOSAT in Summery

  • Launched in January 2009.

At present still in operation despite exceeding the designed life.

  • Measurement of the CO2,CH4

concentration with high accuracy.

  • To estimate sources and sinks of GHG
  • To contribute of climate change science

such as IPCC Assessment Reports.

Achievement

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The monthly averages of CO2 reached 398.8 ppm in May 2015. The trend line is expected to exceed 400 ppm within the year 2016.

Annual Trends of CO2 concentrations in the whole- atmosphere (corrected seasonal cycle) in 2009-2015

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It has become clear visually that an increasing trend of CO2 has been appeared as the years go by.

Variations of the monthly averages of CO2 (four selected months in 2009-2015)

Ministry of the Environment Japan / JAXA / NIES

8

Apr Jul Oct

2009 2010 2011 2012 2013 2014 2015

Jan

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Observation of anthropogenic CO2 concentration

  • ver Mega-Cities

(data used from 2009 to 2012, analyzed 1deg. grid resolution)

Distribution of anthropogenic CO2 concentrations estimated from observational data acquired by GOSAT.

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Observation of anthropogenic CO2 concentration over Mega-Cities (analyzed 1deg. grid resolution, data observed 2009-2012)

Asia

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Observation of anthropogenic CO2 concentration over Mega-Cities (analyzed 1deg. grid resolution, data observed 2009-2012)

North America

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The GOSAT has the potential to detect enhanced CO2 concentration from fossil fuel consumption in mega-cities. Observation of anthropogenic CO2 concentration over Mega-Cities and comparative analysis with emission data

The Globe East Asia North America

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Observation of anthropogenic CH4 concentration

(data used from 2009 to 2012, analyzed 1deg. grid resolution)

Distribution of anthropogenic CH4 concentrations estimated from observational data acquired by GOSAT.

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SLIDE 14

Observation of anthropogenic CH4 concentration

(data used from 2009 to 2012, analyzed 1deg. grid resolution)

Distribution of anthropogenic CH4 concentrations estimated from observational data acquired by GOSAT.

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SLIDE 15

Observation of anthropogenic CH4 concentration

(data used from 2009 to 2012, analyzed 1deg. grid resolution)

Distribution of anthropogenic CH4 concentrations estimated from observational data acquired by GOSAT.

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The GOSAT has the potential to detect anthropogenic CH4 concentration.

Observation of anthropogenic CH4 concentration and comparative analysis with emission data

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Way Forward

I. To launch GOSAT-2 in JFY2017 (early 2018) successively observing GHG concentrations and emissions over the earth. II. To develop an innovative tool to evaluate GHG emissions in nation, local and point source scales, through.

  • III. To seek an international collaboration for GHG
  • bservation with multiple satellites.

GOSAT-2 (JFY2017 - )