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 is considered an essential part of the technology in GIS. It has immense capabilities to collect, analyze and interpret data acquired from the Earth’s surface. Technical improvements in satellites, UAVs and ground-based sensors have made remote sensing an integral part of spatial analysis and greatly indispensable within the majority of industries. Environmental Monitoring… Continue reading Application of Remote Sensing
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
Launched by Space Imaging in 1999, the Ikonos satellite evolved into a ground-breaking tool for remote sensing and Geographic Information Systems (GIS) and as one of the first commercial Earth observation satellites in history, it offered exceptionally precise high-resolution satellite imagery. It was a turning point for the remote sensing and GIS industries enabling experts… Continue reading Ikonos Satellite
Satellite imagery has become a vital tool in Geographic Information Systems (GIS) for gathering, evaluating, and visualizing spatial data. QuickBird is a notable example of a pioneer in high-resolution commercial satellite imaging among the several satellites with advanced Earth observation technologies. QuickBird was developed to provide imagery with previously unheard-of spatial resolution, enabling in-depth examination… Continue reading Quick Bird Satellite
A satellite town also known as a satellite city is a smaller municipality located near a larger metropolitan area where the term originates from the idea that these towns orbit a central city much like satellites orbit a planet. Satellite towns are designed to provide additional living spaces, reduce urban congestion and improve regional connectivity.… Continue reading What Is Satellite Town?
Satellite communication involves the transmission of signals from an Earth-based transmitter to a satellite and back to a receiver on Earth. This process is enabled by a network of artificial satellites that orbit the Earth, relaying signals across vast distances. The primary components of a satellite communication system include the satellite, ground stations, and the… Continue reading What Is Satellite Communication?
Satellite Laser Ranging (SLR) is a sophisticated technique used to measure the distance between a ground station and a satellite equipped with retroreflectors. It involves transmitting laser pulses from the ground station to the satellite and measuring the time it takes for the pulses to return. This method allows for precise calculations of distances, with… Continue reading What Is Satellite Laser Ranging?
The term “wildfire satellite imagery” describes the visible or infrared photos taken by satellites in Earth’s orbit for the express purpose of identifying and tracking wildfires where these photos offer vital information on the size, intensity and behavior of wildfires facilitating prompt management, mitigation and response actions. Wildfires have become more frequent and intense recently,… Continue reading Wildfire Satellite Imagery
Using microwave radiation, Synthetic Aperture Radar is an advanced active remote sensing method that produces high-resolution photographs of the Earth’s surface where SAR can see through clouds, foliage and even complete darkness since it operates in the microwave region of the electromagnetic spectrum unlike optical sensors. The fundamental idea of SAR is its capacity to… Continue reading Synthetic Aperture Radar (SAR)
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