Stereoscopic imagery is the method for enhancing an illusion of three-dimensional (3D) vision by displaying two slightly offset images separately to each eye. This duplicates the binocular vision of humans allowing one to observe depth and spatial relationships. Stereoscopic imagery is used in many applications within GIS such as photogrammetry, topographic mapping and environmental modeling.… Continue reading Stereoscopic Imagery
Remote sensing refers to the process of acquiring information about an object or phenomenon without making direct contact where this process typically involves detecting and measuring electromagnetic radiation (EMR) that is reflected or emitted by objects on Earth’s surface. Remote Sensing Satellites equipped with sensors record this radiation across various spectral bands ranging from visible… Continue reading Remote Sensing Satellites
Satellite imagery refers to the visual representation of Earth’s surface captured by imaging satellites orbiting the planet. These satellites utilize various sensors, such as optical and radar, to acquire data in different wavelengths, allowing for a diverse range of applications. In the discipline of Geographic Information Systems, satellite imagery has become a key component that… Continue reading Top 10 Free Satellite Imagery Providers
The term “satellite imagery” describes the non-visual or visible data gathered by Earth observation satellites as they orbit the planet and with the use of sensors that record electromagnetic radiation at visible, infrared and microwave wavelengths, these satellites can provide a thorough picture of the surface of the planet. The main objective of obtaining satellite… Continue reading Applications of Satellite Imagery
Some hard to believe facts about earth’s water- 97 % – Found in oceans 2% – In frozen form (glaciers and ice caps) Less than 1% – fresh water and a tiny fraction of water exists as water vapour in our atmosphere Main Issues With Oceans A) Over Fishing Commercial fishing is among the biggest… Continue reading Geospatial Data for Ocean Ecosystem
