Tag: esa
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 Landsat-5 TM data from April [...]
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. The three identical satelittes will be launched on a Rockot launcher from Plesetsk in northern Russia and are currently undergoing testing at IABG in Ottobrunn, Germany. Once launched, the Earth Explorer Swarm mission will be used to [...]
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 coverage. The three year mission [...]
Detecting Surface Change and Avalanche Mapping
Interferometric Synthetic Aperture Radar (also known as InSAR) uses remote sensing techniques to compare two or more synthetic aperture radar (SAR) images in order to detect changes in the earth’s surface over time as small as a few millimeters. The combined image analysis is represented by a color ramping indicating the differences in surface heights between the [...]
Southern Namibia and Northern South Africa Image
ESA’s image of the week shows the coastline of southern Namibia and northern South Africa: We can clearly see the sand dunes of the Namib Desert – considered to be the oldest desert in the world. Partially located within the Namib-Naukluft National Park, it is also the site of some of the world’s tallest dunes, rising [...]