esa


GIS Learning

Copyright ESA/IRAP/CNES/TU Delft/HTG/Planetary Visions Description ESA's GOCE satellite detected sound waves from the massive earthquake that hit Japan on 11 March 2011. At GOCE's orbital altitude, the concentration of air molecules is very low so weak sound waves coming up from the ground are strongly amplified. Variations in air density owing to the earthquake were measured by GOCE and combined with a numerical model to show the propagation of low frequency infrasound waves.

Measuring Earthquakes from Space

Up until recently, seismometers have been a strictly Earth-bound devices, diligently tracking each and every change in the Earth’s surface due to earthquakes, volcanic eruptions, and tectonic plates shifting around. For the first time in the history of seismology, a device been able to capture the noise of vibrations caused […]

Spatial Analysis

Artistic view of the Proba-V satellite. Source: ESA.Artistic view of the Proba-V satellite. Source: ESA.

Tracking Global Vegetation with Micro-Satellite Proba-V

The ESA, also known as the European Space Agency, has managed to do a lot of amazing feats in the field of space technology. They have created the Proba-1 and Proba-2 satellites, and their latest microsatellite, the Proba-V, is currently undergoing testing before its launch into space. The Proba-V is […]

GIS Learning

Armchair Geography

Armchair Geography

Geospatial technology has allowed users the ability to travel the world without ever leaving home.  Users can explore the world, inside and out.  Last October, Google unveiled Google MapsGL which uses Google Maps and Web Graphics Library (WebGL), bring 3D graphics to web browsers.  Showcasing the advancement were sample 3D tours […]

GIS Learning

Geospatial Redux: Envisat End of Mission Declared, GIS for Geocaching, Tunneling the Earth

Geospatial Redux: Envisat End of Mission Declared, GIS for Geocaching, Tunneling the Earth

With communication broken with the earth monitoring satellite since April 8, 2012, the European Space Agency (ESA) has declared an end of mission for Envisat.  The ten year old satellite has delivered over a thousand terabytes of data, doubling its expected lifespan of five years.  The lowering of its orbit back in […]

GIS Data

Envisat Satellite Malfunctioning

Envisat Satellite Malfunctioning

Envisat, the European Space Agency’s (ESA) earth observation satellite, has stopped functioning properly.  Communication with the satellite was lost on April 8th when data was unable to be retrieved as it passed over the ground control station in Kiruna, Sweden.  Efforts by members of the ESA mission control team have […]

GIS Learning

Best of GIS: Notable 2011 Geospatial Happenings

Best of GIS: Notable 2011 Geospatial Happenings

It’s been a very long time since I’ve done a “best of GIS” year end review.   Listed below are some of what I have found to be the more exciting and sometimes just plain fun happenings and advances in the GIS and greater geospatial field for the year 2011 […]

GIS Data

False Color/Near Infrared Landsat Imagery 1975-2005False Color/Near Infrared Landsat Imagery 1975-2005

Landsat Satellite Imagery

450 terrabytes of Landsat imagery from the European Space Agency’s archives has been opened up to the public for free.  The agency’s archives covers 30 years of Landsat data.  Data that can be requested for free from ESA’s archives includes: Archived Landsat-4 Thematic Mapper (TM) data in December 1982 Archived […]

Spatial Analysis

A constellation of three satellites form the Swarm Earth Explorer mission. Swarm will identify and measure the magnetic signals that stem from Earth’s core, mantle, crust, oceans, ionosphere and magnetosphere – all of which create the magnetic field that protects our planet. This information will provide insight into processes occurring deep inside the planet and yield a better understanding of the near-Earth electromagnetic environment and the impact solar wind has on Earth. Credits: ESA/AOES MedialabA constellation of three satellites form the Swarm Earth Explorer mission. Swarm will identify and measure the magnetic signals that stem from Earth’s core, mantle, crust, oceans, ionosphere and magnetosphere – all of which create the magnetic field that protects our planet. This information will provide insight into processes occurring deep inside the planet and yield a better understanding of the near-Earth electromagnetic environment and the impact solar wind has on Earth. Credits: ESA/AOES Medialab.

Understanding the Earth’s Gravity with ESA’s Swarm Satellites

The European Space Agency will be launching three satellites next year with the objective of studying the earth’s gravity.

GIS Data

CryoSat-2

CryoSat-2

CryoSat-2 is the satellite launched by the European Space Agency on April 8, 2010 to collect data in order to understand the relationship between the world’s ice layers and climate change.  The satellite collects data about ice thickness over both land and water to analyze the changes in polar ice […]