PPT-Latitude Longitude

History Use of grid lines originated from about 300 BCE by Greek astronomers Hipparcus and Ptolemy Used spherical trigonometry observations using sun moon and stars to plot points on a spherical earth. Geodetic . Datums. Define the shape and size of the earth. . Reference points on a coordinate system used to map the earth. . . There are hundreds of . datums. currently in use; all are either vertical or horizontal in orientation. . Android Application for Health Facility . Latitude Longitude Mapping . Android Application for Health Facility Latitude Longitude Mapping . Step 1):. . First download android application from www.cghealth.nic.in website. On cghealth.nic.in -. Caitlin Roberts. History of Navigation, Geography, and the Longitude Problem. John Dee- “The art of Navigation demonstrates how, by the shortest good way, by the . aptest. direction, and in the shortest time, a sufficient ship between any two places assigned, may be conducted, and in all storms and natural disturbances chancing, how to use the best possible means, whereby to recover the place first assigned.”. Latitude. Distance measure in degrees- from 0. o. to 90. o. North or South of the equator. Equator- . primary reference point. Lines . are called parallels- form complete circles around the earth; are parallel to the . I. Purpose of Nautical Charts. Nautical charts are different from maps in that they specifically depict . water areas. , while maps concentrate on . land area. , roads, landmarks, etc. .. . Land . areas and features on charts are sketchy and are noted only for their . Section 1.2. Maps and Globes. A map is a flat model of the surface of the Earth. It is the “Bird’s eye view” of an area. Show natural AND human-made features. A globe represents Earth as if you were looking at it from Outer Space. 2. Grid System. Lines of latitude and longitude cover the entire Earth, allowing us to find any location.. The . cardinal directions. are North, South, East and West.. Lines of Latitude run East to West. Globe Skill Review. What is the invisible line at 0. ° latitude called?. The equator is the invisible line at . 0. ° latitude.. The equator is the “belt” of the earth.. What kind of lines show how far a place is away from the equator?. Geodetic . Datums. Define the shape and size of the earth. . Reference points on a coordinate system used to map the earth. . . There are hundreds of . datums. currently in use; all are either vertical or horizontal in orientation. . Try it: http://coastwatch.pfeg.noaa.gov/erddap. Bob Simons <bob.simons@noaa.gov>. NOAA NMFS SWFSC ERD. OBIS SOS Custom DAP ERDDAP .... Database ERDDAP Files . . 3. Copy the following definitions:. Geography. - the study of the Earth, people, places and environments.. Map Legend- . gives symbols to represent places on a map. Map Scale- . compares distance on a map to actual distance on the Earth.. Chapter 6. Views of Earth. Latitude. The equator is an imaginary line that circles the Earth halfway between the north and south poles. It separates the Earth into two equal halves – the northern hemisphere and the southern hemisphere.. How do you know whether it is or isn’t?. Who made the first map? Or globe?. What do maps show us? . Earth’s surface, political borders, population, geography, . ect. . . Geography. Latitude and Longitude. Latitude Longitude Mapping . Android Application for Health Facility Latitude Longitude Mapping . Step 1):. . First download android application from www.cghealth.nic.in website. On cghealth.nic.in -.