The Global Positioning System (GPS) uses accurate, stable atomic clocks in satellites and on the ground to provide world-wide position and time determination. These clocks have gravitational and motional frequency shifts which are so large that, without carefully accounting for numerous

The Global Positioning System (GPS) has led to a revolution in the land surveying profession. The GPS technology is being employed in a variety of surveying applications while the technology is still evolving. At present there are only nationally accepted procedures/methodologies for performing

Arguably one of the most useful global benefits provided by the U.S. De-partment of Defense (DoD) has been the Global Positioning System (GPS). The GPS provides worldwide ability to pinpoint positions, including alti-tude, to within a few tens of metres. The general theory of operation for

GPS stands for Global Positioning Systems. It is a technology that was devised by the United States, and is presently used globally. It uses satellites to provide location and time information about from anywhere. It consists of a receiver which communicates with four or more satellites at once

The global positioning system (GPS) is a oneway, all-weather, real-time, and world-wide radio-navigation system. It is also a quite usable tool for accurate time dissemination and for terrestrial atmosphere remote sensing. The system was funded and designed by the US military. The first GPS

the potential to design location-based interventions effectively. Using global positioning system (GPS) and accelerometry, this study aimed to identify locations where children engage in moderate-vigorous physical activity (MVPA). Methods Participants included 119 children (11–14 years, 57 % girls) from public

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Abstract An interdisciplinary study of glacier-related hazards in the Petrov lake region (Ak-Shiirak Range, the Inner Tien-Shan, Kyrgyzstan) has been undertaken to identify potential dangers to the area. A cooperative effort from experts in the fields of hydrology, glaciology, geomorphology and geophysics has been employed in this study. For the hazard assessment, evolution of the Petrov glacier and lake was reconstructed using his-torical reports, aerial photographs and satellite images. Geomorphological mapping and geophysical soundings was applied to the lake territory and the moraine dam. This has identified potentially hazardous areas of the dam including subsurface drainage zones and cracks that could cause a sudden extremely high discharge. In the past three decades, the Petrov lake has doubled in size, while in recent years, its area has been increasing by more than 92,000 square metres per year. Although there is no evidence for an imminent out-burst, the dramatic increase in the lake’s size emphasizes the importance of this study.

DISCLAIMER This report was prepared as an account of work sponsored by the U.S. Government. Neither the United States nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the U.S. Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the U.S. Government or any agency thereof. DOE/SC-ARM/TR-050

Abstract:-A GPS tracking unit is a device that uses the Global Positioning System to determine the precise location of a vehicle, person, or other asset to which it is attached and to record the position of the asset at regular intervals. The recorded location data can be stored within the tracking