© GEO Secretariat

GEOSS 全球地球観測システムへのGEO Grid の取り組み　

- 全球地球データ検証システム SDCP-

岩男弘毅Scientific Officer, GEO secretariat情報技術研究部門 地球観測グリッド研究グループ

GEO Grid: Global Earth Observation Grid地球観測グリッド

GEO: Group on Earth Observations地球観測に関する政府間会合

GEOSS: Global Earth Observation System of Systems全球地球観測システム

GEO Grid の政府間レベルでの国際展開

© GEO Secretariat slide 3

• Some 30% of our economy is tied to the environment

• Scientific understanding and ongoing knowledge of the Earth system is fundamental for well informed economic decision making

• Sustained Earth observations are critical

• Systems interoperability and open data access is fundamental

A global approach to Earth observation is required

GEOSS Imperative

© GEO Secretariat

U.S. Department of State, Washington DCJuly 31, 2003

GEO, the Group on Earth ObservationsAn Intergovernmental Organization with 86 Members

and 61 Participating Organizations

© GEO Secretariat

GEO was created through a series of Earth Observations Summits

Washington

Tokyo

Brussels

2004 年 4 月 ( 東京 )第 2 回地球観測サミットGEOSS 枠組み採択

Environment and Climate Change 2008 年洞爺湖サミット

To respond to the growing demand for Earth observation data, we will accelerate efforts within the Global Earth Observation System of Systems (GEOSS), which builds on the work of UN specialized agencies and programs, in priority areas, inter alia, climate change and water resources management, by strengthening observation, prediction and data sharing. We also support capacity building for developing countries in earth observations and promote interoperability and linkage with other partners.

… to answer Society’s need for informed decision

making

Coordinate and Sustain Observation Systems

Provide Easier & More Open Data Access

Foster Use through Science, Applications and Capacity Building

GEOSS - Global Earth Observation System of Systems…

© GEO Secretariat

© GEO Secretariat

Represents a COLOSSAL

investment by GEO Members &

PO in EO systems

Delivers major societal benefits to USERS, such as policy makers

& citizens

Enables GEOSS resources to be

readily discovered and accessed

Appropriate interoperability

相互運用性、標準化

Trusted (QA) data & information

品質管理

"Open”, in accordance with DSP

データ共有 ( 公開 ) ポリシー

© GEO Secretariat

Led to Free and Open Access to the LANDSAT Archive (USGS - USA)

Petabyte 1972 ～

地球観測における基盤情報Highest Ranked

Observations (#1-20) and Associated SBAs

All of the 20 Highest-Ranked observations

are common to 4 or more SBAs

All of 30 Highest-Ranked observations are common to 3 or

more SBAs

* Biodiversity SBA Team did not produce a set of Earth

observations priorities.

全球土地被覆図

高解像度全球都市マップ

Global Land Cover maps in GEOSS

FAO

IGBP

US(Boston Univ)

The land cover maps does not suit mutually.

Giri, C., Zhu, Z., and Reed, B., 2005.

A comparative analysis of the Global Land Cover 2000 and MODIS land cover data sets,

Remote Sensing of Environment 94, pp.123-132

McCallum, I., Obersteiner, M., Nilsson, S., and Shvidenko, A.,

2006. A spatial comparison of four satellite derived 1 km global

land cover datasets, International Journal of Applied

Earth Observation and Geoinformation

Which one is the best?

But, who does the ground-truth all over the

world?

I want to validate land cover mapsFor that purpose, Ground-Truth on a global scale, numerous, and spatially balanced validation data is needed

Degree Confluen

ce Project

Information might

be useful!

Degree Confluence Projecthttp://www.confluence.org

全球緯度経度整数値地点 6000点以上を踏査

What is Degree Confluence Project?http://www.confluence.org

The example of DCP

East South

West

North

Courtesy DCP

-visit the DCPoints (intersections of integer level latitude and longitude grid lines) -collect onsite data (photo and text base descriptions) from all the Degree Confluences in the world.- volunteer-based project

http://eco.geogrid.org/sdcp

http://eco.geogrid.org/sdcp

土地被覆図品質評価のための新たな検証情報

Paper accepted at the Journal of Geographic Information System

© GEO Secretariat

List of AIST contribution to GEO

© GEO Secretariat

Thank you!

© GEO Secretariat

Registries, Clearinghouse and Portal

Contributors register observation systems, data sets and services

Users discover

and exploit resources

contributed to GEOSS