The Experts below are selected from a list of 294 Experts worldwide ranked by ideXlab platform
Mathias Albert - One of the best experts on this subject based on the ideXlab platform.
-
The Routledge handbook of the Polar Regions
International Affairs, 2018Co-Authors: Mathias AlbertAbstract:Albert M. The Routledge Handbook of the Polar Regions. International Affairs. 01.11.2018;94(6):1464-1465
Guang Liu - One of the best experts on this subject based on the ideXlab platform.
-
Observation parameters design of moon-based earth observation sensors for monitoring three-Polar Regions
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017Co-Authors: Hanlin Ye, Hua Dong Guo, Guang LiuAbstract:More and more attention has been paid to taking the Earth as a whole for researching. Though space-borne and airborne platform have acquired various data from the Earth, the existing Earth observation system lack the ability of long-term continuous observation at a global scale. Three-Polar Regions include the Arctic, Antarctic and Tibet Plateau, which characterized by its large scale and need long-term observation. This will need large-scale, constant and long-term dynamic Earth observation system. Here we established a new platform, Moon-based Earth observation platform, which focuses on the observation of global scale scientific phenomena, turning out to be an ideal platform to study Three-Polar Regions environment comparison research. In this paper, we propose the Moon-based observation platform, and discuss the system parameters performance briefly and next focus on the potential applications of Three-Polar Regions.
-
IGARSS - Observation parameters design of moon-based earth observation sensors for monitoring three-Polar Regions
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017Co-Authors: Hanlin Ye, Hua Dong Guo, Guang LiuAbstract:More and more attention has been paid to taking the Earth as a whole for researching. Though space-borne and airborne platform have acquired various data from the Earth, the existing Earth observation system lack the ability of long-term continuous observation at a global scale. Three-Polar Regions include the Arctic, Antarctic and Tibet Plateau, which characterized by its large scale and need long-term observation. This will need large-scale, constant and long-term dynamic Earth observation system. Here we established a new platform, Moon-based Earth observation platform, which focuses on the observation of global scale scientific phenomena, turning out to be an ideal platform to study Three-Polar Regions environment comparison research. In this paper, we propose the Moon-based observation platform, and discuss the system parameters performance briefly and next focus on the potential applications of Three-Polar Regions.
-
The Coverage Analysis for Moon-based Platform at Three- Polar Regions on Earth
IOP Conference Series: Earth and Environmental Science, 2016Co-Authors: Hua Dong Guo, Guang LiuAbstract:More and more attention has been paid to taking the Earth as a whole for researching. Though space-borne and airborne platform have acquired various data from the Earth, the existing Earth observation system lack the ability of long-term continuous observation at a global scale. We propose a new platform, Moon-based platform, which is used for observing Earth from the Moon and discuss the coverage performance for observing Three-Polar Regions. Three-Polar Regions is characterized by its large scale and need long-term observation. Moon-based platform is the ideal platform. The coverage performance of the Moon-based platform depends on Moon orbit parameters, the attitude of the Moon and the attitude of the Earth. The position of the Moon are calculated from Jet Propulsion Laboratory ephemerides. The attitude of the Moon calculated from the libration Euler angles and the attitude of the Earth derived from the Earth orientation parameters. After introducing the coordinate system transformation, a preliminary coverage geometry are conducted. With the help of coverage geometry model, the simulation about Three- Polar Regions is presented. The result shows that the Moon-based platform has the advantages of large observing areas, long observation time windows and rich observing angles combination.
Graham J. Hill - One of the best experts on this subject based on the ideXlab platform.
-
On the Use of Electromagnetics for Earth Imaging of the Polar Regions
Surveys in Geophysics, 2019Co-Authors: Graham J. HillAbstract:The Polar Regions are host to fundamental unresolved challenges in Earth studies. The nature of these Regions necessitates the use of geophysics to address these issues, with electromagnetic and, in particular, magnetotelluric studies finding favour and being applied over a number of different scales. The unique geography and climatic conditions of the Polar Regions means collecting magnetotelluric data at high latitudes, which presents challenges not typically encountered and may result in significant measurement errors. (1) The very high contact resistance between electrodes and the surficial snow and ice cover (commonly MΩ) can interfere with the electric field measurement. This is overcome by using custom-designed amplifiers placed at the active electrodes to buffer their high impedance contacts. (2) The proximity to the geomagnetic poles requires verification of the fundamental assumption in magnetotellurics that the magnetic source field is a vertically propagating, horizontally Polarised plane wave. Behaviour of the Polar electro-jet must be assessed to identify increased activity (high energy periods) that create strong current systems and may generate non-planar contributions. (3) The generation of ‘blizstatic’, localised random electric fields caused by the spin drift of moving charged snow and ice particles that produce significant noise in the electric fields during periods of strong winds. At wind speeds above ~ 10 m s−1, the effect of the distortion created by the moving snow is broad-band. Station occupation times need to be of sufficient length to ensure data are collected when wind speed is low. (4) Working on glaciated terrain introduces additional safety challenges, e.g., weather, crevasse hazards, etc. Inclusion of a mountaineer in the team, both during the site location planning and onsite operations, allows these hazards to be properly managed. Examples spanning studies covering development and application of novel electromagnetic approaches for the Polar Regions as well as results from studies addressing a variety of differing geologic questions are presented. Electromagnetic studies focusing on near-surface hydrologic systems, glacial and ice sheet dynamics, as well as large-scale volcanic and tectonic problems are discussed providing an overview of the use of electromagnetic methods to investigate fundamental questions in solid earth studies that have both been completed and are currently ongoing in Polar Regions.
Hua Dong Guo - One of the best experts on this subject based on the ideXlab platform.
-
Observation parameters design of moon-based earth observation sensors for monitoring three-Polar Regions
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017Co-Authors: Hanlin Ye, Hua Dong Guo, Guang LiuAbstract:More and more attention has been paid to taking the Earth as a whole for researching. Though space-borne and airborne platform have acquired various data from the Earth, the existing Earth observation system lack the ability of long-term continuous observation at a global scale. Three-Polar Regions include the Arctic, Antarctic and Tibet Plateau, which characterized by its large scale and need long-term observation. This will need large-scale, constant and long-term dynamic Earth observation system. Here we established a new platform, Moon-based Earth observation platform, which focuses on the observation of global scale scientific phenomena, turning out to be an ideal platform to study Three-Polar Regions environment comparison research. In this paper, we propose the Moon-based observation platform, and discuss the system parameters performance briefly and next focus on the potential applications of Three-Polar Regions.
-
IGARSS - Observation parameters design of moon-based earth observation sensors for monitoring three-Polar Regions
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017Co-Authors: Hanlin Ye, Hua Dong Guo, Guang LiuAbstract:More and more attention has been paid to taking the Earth as a whole for researching. Though space-borne and airborne platform have acquired various data from the Earth, the existing Earth observation system lack the ability of long-term continuous observation at a global scale. Three-Polar Regions include the Arctic, Antarctic and Tibet Plateau, which characterized by its large scale and need long-term observation. This will need large-scale, constant and long-term dynamic Earth observation system. Here we established a new platform, Moon-based Earth observation platform, which focuses on the observation of global scale scientific phenomena, turning out to be an ideal platform to study Three-Polar Regions environment comparison research. In this paper, we propose the Moon-based observation platform, and discuss the system parameters performance briefly and next focus on the potential applications of Three-Polar Regions.
-
The Coverage Analysis for Moon-based Platform at Three- Polar Regions on Earth
IOP Conference Series: Earth and Environmental Science, 2016Co-Authors: Hua Dong Guo, Guang LiuAbstract:More and more attention has been paid to taking the Earth as a whole for researching. Though space-borne and airborne platform have acquired various data from the Earth, the existing Earth observation system lack the ability of long-term continuous observation at a global scale. We propose a new platform, Moon-based platform, which is used for observing Earth from the Moon and discuss the coverage performance for observing Three-Polar Regions. Three-Polar Regions is characterized by its large scale and need long-term observation. Moon-based platform is the ideal platform. The coverage performance of the Moon-based platform depends on Moon orbit parameters, the attitude of the Moon and the attitude of the Earth. The position of the Moon are calculated from Jet Propulsion Laboratory ephemerides. The attitude of the Moon calculated from the libration Euler angles and the attitude of the Earth derived from the Earth orientation parameters. After introducing the coordinate system transformation, a preliminary coverage geometry are conducted. With the help of coverage geometry model, the simulation about Three- Polar Regions is presented. The result shows that the Moon-based platform has the advantages of large observing areas, long observation time windows and rich observing angles combination.
Hanlin Ye - One of the best experts on this subject based on the ideXlab platform.
-
Observation parameters design of moon-based earth observation sensors for monitoring three-Polar Regions
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017Co-Authors: Hanlin Ye, Hua Dong Guo, Guang LiuAbstract:More and more attention has been paid to taking the Earth as a whole for researching. Though space-borne and airborne platform have acquired various data from the Earth, the existing Earth observation system lack the ability of long-term continuous observation at a global scale. Three-Polar Regions include the Arctic, Antarctic and Tibet Plateau, which characterized by its large scale and need long-term observation. This will need large-scale, constant and long-term dynamic Earth observation system. Here we established a new platform, Moon-based Earth observation platform, which focuses on the observation of global scale scientific phenomena, turning out to be an ideal platform to study Three-Polar Regions environment comparison research. In this paper, we propose the Moon-based observation platform, and discuss the system parameters performance briefly and next focus on the potential applications of Three-Polar Regions.
-
IGARSS - Observation parameters design of moon-based earth observation sensors for monitoring three-Polar Regions
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017Co-Authors: Hanlin Ye, Hua Dong Guo, Guang LiuAbstract:More and more attention has been paid to taking the Earth as a whole for researching. Though space-borne and airborne platform have acquired various data from the Earth, the existing Earth observation system lack the ability of long-term continuous observation at a global scale. Three-Polar Regions include the Arctic, Antarctic and Tibet Plateau, which characterized by its large scale and need long-term observation. This will need large-scale, constant and long-term dynamic Earth observation system. Here we established a new platform, Moon-based Earth observation platform, which focuses on the observation of global scale scientific phenomena, turning out to be an ideal platform to study Three-Polar Regions environment comparison research. In this paper, we propose the Moon-based observation platform, and discuss the system parameters performance briefly and next focus on the potential applications of Three-Polar Regions.
