“INTRODUCTION” Geographic Information System (GIS) is a computer based information system used to digitally represent and analyze the geographic features present on the Earth ’s surface and the events (non-spatial attributes linked to the geography under study) that taking place on it. The meaning to represent digitally is to convert analog (smooth line) into a digital form. "Every object present on the Earth can be geo-referenced"‚ is the fundamental key of associating any database to GIS
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enormous amount of writing on weather forecasting I can only come to one conclusion that when all is considered the best forecasters can only give an educated guess of what is in store for weather. Through the many means at their disposal‚ such as satellites‚ ships at the ocean‚ infrared‚ radio‚ and radar transmissions even with all of these techniques no prediction is 100% accurate. One question that I asked myself was "when was the first weather forecasting ever done?"‚ I found out that in 1863
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the endless universe thinking to bring up something interesting. In these recent 20-30 years space exploration has really affected the world. Billions of money is put into the space exploration business‚ races were made to get to the moon first‚ satellites are all over‚ and that has already become our daily life. There are a lot of positive aspects of space exploration. But in the midst of all of these‚ there are negative things that affect the world society and should be changed. Space exploration
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can be expanded by examining radio waves‚ radio transmitters and receivers. The radio broadcasting industry creates and licenses content to play on radio stations‚ which are received by radio receivers. Radio Waves Satellites also communicate via radio waves. More like light than sound‚ radio waves are comparatively low frequency waves in the electromagnetic spectrum. Radio waves can be used to transmit information without wires. Data can be coded into the radio waves
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REMOTE SENSING AND GIS IN DIASTER MANAGEMENT INTRODUCTION Satellites monitoring Earth’s resources and natural disasters. Each satellite has different repeat pass frequency and spatial resolution (unless it belongs to the same series of satellites for the purpose of continuation of data flow with same specifications). Similarly‚ different satellites have different types of sensors on-board‚ such as‚ panchromatic‚ multispectral‚ infrared and thermal. All these sensors have applications
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to Canadian Satellite Radio Holdings Inc.‚ was founded in 2002 and the ownerships was broken down in three different ways. John Bitove owned 58 percent‚ XM Radio owned 23 percent and the Toronto Stock Exchange owned the remaining 19 percent. Sirius Canada Inc. was established in 2004 and had two main investors‚ Canadian Broadcasting Corporation and Slaight Communications. In 2010 when the two companies merged the ownership was changed to better suit both companies. Canadian Satellite Radio Holdings
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Sputnik was Earth’s first artificial satellite. It was launched into a low Earth orbit on October 4th 1957 by the Soviet Republic of Russia. Compared to today’s satellites‚ it was a tiny 23 inch diameter sphere with 4 external radio antennae used to broadcast radio pulses and is widely hailed as ushering in a new era of scientific‚ technological‚ political and military advancements. Scientifically‚ satellites have given us such things as highly accurate maps‚ satellite phones/television and weather tracking
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one or more earth-based receivers that accept and analyze signals sent by satellites to determine a receiver’s geographic location. GPS receivers‚ found in handheld navigation devices and many vehicles‚ use triangulation to determine their location relative at least three geostationary satellites. According to Sanders‚ the geostationary satellites are the fixed points in the triangulation formulas (Understanding Satellites and Global Positioning Systems). The next time you pass a surveyor‚ play
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ACARS via Iridium Iridium is a large satellite constellation that consists of 66 low-earth orbiting (LEO)‚ cross-linked satellites operating as a fully meshed network providing truly global coverage (including oceans‚ airways and polar regions). Iridium satellites are in a near-polar orbit at an altitude of 485 miles. The network is composed of 66 active satellites that fly in six orbital planes‚ each with 11 satellites per plane. Satellites circle the earth once every 100 minutes. ACARS is
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INT1 Task 1 Jamie Hildebrand Hurricane Satellite Image‚ NOAA‚ n.d.‚ retrieved from: http://www.noaa.gov/features/02_monitoring/inland_flooding.html Weather Forecasts From folklore and proverbs to modern radar technology‚ the scientific understanding of weather prediction has evolved through time. Several inventions such as the thermometer‚ barometer and even satellites have given way to immense knowledge of weather conditions. Mild‚ sunny days are perfect for picnics‚ but those aren’t the weather
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