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Gren Space Green Earth

What is Green from Space?

Green from Space is Earth observations from space that supports both science and other Earth observation data leading to better decision making in an increasingly complex and environmentally stressed world. This information betters our understanding of Earth lending support for sustainable development.

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Bente Lilja Bye

Astrophysicist and Earth Science Expert


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A Green Space A Green Earth

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This month A Green Space – A Green Earth focus on disaster mitigation and early warnings and how space based Earth observations contributes to safe-guard lives and property.

New satellite techniques such as InSAR complement GPS in unraveling in fine details crustal movements of the Earth. ESA's GOCE gravity measurements from space will add knowledge to our understanding of sub-surface movements leading up to earthquakes. Through observing Earth from space before, during and after earthquakes we improve disaster mitigation and early warnings.

Learn more about earthquakes and the examples mentioned in this episode through the following links:

How does InSAR work?

InSAR used at the L'Aquila, Italy earthquake 2009.

Seismic and Medical Tomography

Global Earthquake Model – A OECD program

Indian Ocean Tsunami Disaster 2004 – A portal for more information at University of Buffalo, NY, USA

Wenchuan, China earthquake 2008 – A portal for maps and geophysical information about the earthquake

Wenchuan, China earthquake 2008 in numbers (in Chinese with map from China Earthquake Adminstration)

L'Aquila, Italy earthquake 2009 in pictures – A collection of images in Boston Globe.

Space geodetic techniques – A portal for more information about space based geodetic techniques.


Haiti Earthquake & Earthquake Science in "The Ring of Fire". (see 2d video in playlist) We take a closer look at the science of Haiti earthquake of 12th February 2009 - as well as other earthquakes. For the first time here on GSGE we interview leading experts;

Prof. Timothy Dixon from Geodesy Lab at University of Miami: published an article already back in 1998 revealing the risks of earthquakes in Haiti. He works with both Paul Mann from University of Texas who in 2008 confirmed that the risks were eminent, and Eric Calais, Purdue University who manages the GPS network that monitor tectonic plate movements in Haiti. These three groups have sent geodesists with GPS equipment, while also maintaining a blog. See below.

Ass. Prof. William Hammond from University of Nevada in Reno: Explains how they use GPS to monitor plate movements - and earthquake swarms.

Dr. Amir Kaynia from the International Centre for Geohazards in Oslo, Norway: Talks about the difference between predictions and early warning and discuss other geohazards connected to earthquakes.

National Science Foundation's GPS team blog from Haiti:

GEO's Haiti Supersite. Collection of Haiti earthquake science information.

Eric Calais (responsible for the tectonic plate movements Haitian GPS network together with local Haitian authorities).

Haiti Earthquake at University of Miami
http://www.geodesy.miami.edu/ or http://www.geodesy.miami.edu/earthquakes.html#Haiti_earthquake

Haiti Earthquake at University of Texas.

The International Centre for Geohazards: