نتایج جستجو برای: agile earth observation satellite
تعداد نتایج: 358053 فیلتر نتایج به سال:
In this paper, we address the challenge of land use and land cover classification using remote sensing satellite images. For this challenging task, we use the openly and freely accessible Sentinel-2 satellite images provided within the scope of the Earth observation program Copernicus. The key contributions are as follows. We present a novel dataset based on satellite images covering 13 differe...
This paper addresses the development of a new method for synoptic monitoring of turbidity represented by Total Suspended Solids (TSS). The method aims at optimising information from operational dredging data, earth observation data, modelling of currents and sediment transport and in-situ data by means of new data-model integration (DMI) techniques. As a test case, Penny’s Bay in the Hong Kong ...
High energy photons are a powerful probe for astrophysics and for fundamental physics under extreme conditions. During the recent years, our knowledge of the most violent phenomena in the Universe has impressively progressed thanks to the advent of new detectors for high energy gamma rays. Observation of γ-rays gives an exciting view of the high energy universe thanks to the current (AGILE) and...
The “GEO (Global Earth Observation) Grid” is aiming at providing an E-Infrastructure to understand our Earth more insightful and more precisely, but faster and easier to worldwide Earth Sciences community. On the E-Infrastructure we are able to share data, application programs, and scientific workflows without knowing deep knowledge in IT where the grid technology is provisioned. GEO Grid provi...
Generally, circular orbits of satellites are categorized as Geosynchronous Earth Orbits (GEO), Medium Earth Orbits (MEO) and Low Earth Orbits (LEO). The main difference between them is their attitude above the Earth’s surface (Richharia, 1999; Roddy, 2006; Maral and Bousquet, 2002). The Sun synchronization feature is typical for LEOs. Sun synchronized low Earth orbits have a very wide applicati...
Advances in remote sensing technologies have enabled public and commercial organizations to send an ever-increasing number of satellites in orbit around Earth. As a result, Earth Observation (EO) data has been constantly increasing in volume in the last few years, and is currently reaching petabytes in many satellite archives. For example, the multi-mission data archive of the TELEIOS partner G...
Communication via satellite begins when the satellite is positioned in the desired orbital position. Ground stations can communicate with LEO (Low Earth Orbiting) satellites only when the satellite is in their visibility region. The visibility region is in fact the horizon plane. Because of natural barriers or too high buildings in urban areas, practical horizon plane differs from the ideal one...
1. Introduction The number of satellite missions dedicated to remote sensing (or Earth Observation (EO)) has increased significantly over the past decade and will further increase over the coming decade and beyond. Data from these missions offer the potential for contributing to the security of human existence on Earth in different ways. Although there have been many demonstrations of the value...
Space-Ground Integrated Network (SGIN) is the future network, and the satellite-earth link channel is one critical part of the SGIN. This paper simulates the satellite-earth link channel of SGIN based on the simulation environment of OMNeT++. We set up the model of space-ground network and satellite-earth link channel. The satellite-earth link channel includes two main parts, one part is the fr...
The Japanese geostationary meteorological satellite GMS-5, or also known as ”Himawari,” is positioned at 140◦E above the equator, and serves as a powerful tool for monitoring typhoons on the Pacific Ocean. This satellite is best suited for the monitoring of typhoons because of frequent observation, wide coverage, and fixed scan range. However, the degradation of effective resolution due to eart...
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