Understanding Map Projections
... datum, but a datum is only one part of a GCS. A GCS includes an angular unit of measure, a prime meridian, and a datum (based on a spheroid). A feature is referenced by its longitude and latitude values. Longitude and latitude are angles measured from the earth’s center to a point on the earth’s sur ...
... datum, but a datum is only one part of a GCS. A GCS includes an angular unit of measure, a prime meridian, and a datum (based on a spheroid). A feature is referenced by its longitude and latitude values. Longitude and latitude are angles measured from the earth’s center to a point on the earth’s sur ...
ArcGIS® 9
... The information contained in this document is subject to change without notice. U.S. GOVERNMENT RESTRICTED/LIMITED RIGHTS Any software, documentation, and/or data delivered hereunder is subject to the terms of the License Agreement. In no event shall the U.S. Government acquire greater than RESTRICT ...
... The information contained in this document is subject to change without notice. U.S. GOVERNMENT RESTRICTED/LIMITED RIGHTS Any software, documentation, and/or data delivered hereunder is subject to the terms of the License Agreement. In no event shall the U.S. Government acquire greater than RESTRICT ...
Understanding Map Projections
... event shall the U.S. Government acquire greater than RESTRICTED/LIMITED RIGHTS. At a minimum, use, duplication, or disclosure by the U.S. Government is subject to restrictions as set forth in FAR §52.227-14 Alternates I, II, and III (JUN 1987); FAR §52.227-19 (JUN 1987) and/or FAR §12.211/12.212 (Co ...
... event shall the U.S. Government acquire greater than RESTRICTED/LIMITED RIGHTS. At a minimum, use, duplication, or disclosure by the U.S. Government is subject to restrictions as set forth in FAR §52.227-14 Alternates I, II, and III (JUN 1987); FAR §52.227-19 (JUN 1987) and/or FAR §12.211/12.212 (Co ...
Understanding Map Projections
... event shall the U.S. Government acquire greater than RESTRICTED/LIMITED RIGHTS. At a minimum, use, duplication, or disclosure by the U.S. Government is subject to restrictions as set forth in FAR §52.227-14 Alternates I, II, and III (JUN 1987); FAR §52.227-19 (JUN 1987) and/or FAR §12.211/12.212 (Co ...
... event shall the U.S. Government acquire greater than RESTRICTED/LIMITED RIGHTS. At a minimum, use, duplication, or disclosure by the U.S. Government is subject to restrictions as set forth in FAR §52.227-14 Alternates I, II, and III (JUN 1987); FAR §52.227-19 (JUN 1987) and/or FAR §12.211/12.212 (Co ...
Basics of Geographic Coordinate Systems (for ArcGIS 10)
... North America the GRS80 spheroid is the most common. Ignoring deviations and using the same spheroid for all locations on the earth could lead to errors of several meters, or in extreme cases hundreds of meters, in measurements on a regional scale. Because of improvements in technology, refinements ...
... North America the GRS80 spheroid is the most common. Ignoring deviations and using the same spheroid for all locations on the earth could lead to errors of several meters, or in extreme cases hundreds of meters, in measurements on a regional scale. Because of improvements in technology, refinements ...
GENERAL ARCHITECTURE DESIGN OF LUNAR PROJECTION SYSTEM
... (3) The selection and application of lunar projection shall strive for basic conformation with other developed countries in the world and the versatility in the world; meanwhile, it shall sufficiently embody our characteristics, adapt to the present geographical spatial information mathematical foun ...
... (3) The selection and application of lunar projection shall strive for basic conformation with other developed countries in the world and the versatility in the world; meanwhile, it shall sufficiently embody our characteristics, adapt to the present geographical spatial information mathematical foun ...
Geographic coordinate systems
... transformation is commonly referred to as a map projection. One easy way to understand how map projections alter spatial properties is to visualize shining a light through the earth onto a surface, called the projection surface. A spheroid can’t be flattened to a plane any easier than flattening a p ...
... transformation is commonly referred to as a map projection. One easy way to understand how map projections alter spatial properties is to visualize shining a light through the earth onto a surface, called the projection surface. A spheroid can’t be flattened to a plane any easier than flattening a p ...
Chapter 1 - Jenkins Independent Schools
... (pla TOHZ). Plateaus are flat, raised areas of land made up of nearly horizontal rocks that have been uplifted by forces within Earth. They are different from plains in that their edges rise steeply from the land around them. Because of this uplifting, it is common for plateaus, such as the Colorado ...
... (pla TOHZ). Plateaus are flat, raised areas of land made up of nearly horizontal rocks that have been uplifted by forces within Earth. They are different from plains in that their edges rise steeply from the land around them. Because of this uplifting, it is common for plateaus, such as the Colorado ...
References
... can reach Shanghai, similar1y, going toward west around the earth (a circuit) also reaches Shanghai. For instance, going toward north from Wuhan can arrive in Beijing, ...
... can reach Shanghai, similar1y, going toward west around the earth (a circuit) also reaches Shanghai. For instance, going toward north from Wuhan can arrive in Beijing, ...
Solutions for all Social Sciences : Grade 8 Learner`s Book
... When you give the co-ordinates of a place, you state the latitude position first and the longitude position second. The following steps will help you locate places using an atlas. The city of Durban is used as an example. 1. Find the name of the place you want to locate in the alphabetical index. Du ...
... When you give the co-ordinates of a place, you state the latitude position first and the longitude position second. The following steps will help you locate places using an atlas. The city of Durban is used as an example. 1. Find the name of the place you want to locate in the alphabetical index. Du ...
The Five Themes of Geography
... They never meet. The circles that lines of latitude create divide the globe into units of measurement called degrees. In the middle of the globe there is a line of latitude (or parallel) called the Equator. The equator is located at 0 degrees latitude. The equator divides the earth exactly in half. ...
... They never meet. The circles that lines of latitude create divide the globe into units of measurement called degrees. In the middle of the globe there is a line of latitude (or parallel) called the Equator. The equator is located at 0 degrees latitude. The equator divides the earth exactly in half. ...
Where in the Latitude Are You? A Longitude Here
... Tell the students they are now going to place the rest of the longitude and latitude lines on the globe. Students need to find the halfway point the Prime Meridian and the International Date Line. This will be the 90° lines. Be sure to keep the string in place and straight. Students can help one ano ...
... Tell the students they are now going to place the rest of the longitude and latitude lines on the globe. Students need to find the halfway point the Prime Meridian and the International Date Line. This will be the 90° lines. Be sure to keep the string in place and straight. Students can help one ano ...
Peter Ifland. E-mail: The History of the Sextant
... So what do navigators need to find their position on the earth's surface by observing the stars? 1. They need an Almanac prepared by the astronomers to forecast precisely where the heavenly bodies, the sun, moon planets and selected navigational stars, are going to be, hour by hour, years into the f ...
... So what do navigators need to find their position on the earth's surface by observing the stars? 1. They need an Almanac prepared by the astronomers to forecast precisely where the heavenly bodies, the sun, moon planets and selected navigational stars, are going to be, hour by hour, years into the f ...
Every Day Actions
... where a place is found by giving its latitude and longitude, as well as a street address • Relative – describe the things around a place and the things that connect it to other places. – direction from other places – water as links – hemisphere ...
... where a place is found by giving its latitude and longitude, as well as a street address • Relative – describe the things around a place and the things that connect it to other places. – direction from other places – water as links – hemisphere ...
Mapping picture dictionary - Ms. Fell
... much larger than they really are). Mercator projections are useful for nautical navigation. Geradus Mercator devised this cylindrical projection for use in navigation in 1569. ...
... much larger than they really are). Mercator projections are useful for nautical navigation. Geradus Mercator devised this cylindrical projection for use in navigation in 1569. ...
File
... • The vertical lines have two names—meridians and lines of longitude. • Just as the equator is used as a reference point for lines of latitude, there’s a reference point for lines of longitude—the prime meridian. • This imaginary line represents 0° longitude. ...
... • The vertical lines have two names—meridians and lines of longitude. • Just as the equator is used as a reference point for lines of latitude, there’s a reference point for lines of longitude—the prime meridian. • This imaginary line represents 0° longitude. ...
Maps and Globes - stmarys
... longitude- is the angular distance east or west on the earth's surface, measured by the angle contained between the meridian of a particular place. map - A diagrammatic representation of an area of land or sea showing physical features, cities, roads or other features. meridian- A circle of constant ...
... longitude- is the angular distance east or west on the earth's surface, measured by the angle contained between the meridian of a particular place. map - A diagrammatic representation of an area of land or sea showing physical features, cities, roads or other features. meridian- A circle of constant ...
CHAPTER ONE
... Hudson River. But, this site does not differ radically from those of Boston or Philadelphia. New Orleans, on the other hand, has a poor site below the level of the Mississippi River, which surrounds much of it. This proved disastrous when Hurricane Katrina hit in 2005. Why, then, is New York such a ...
... Hudson River. But, this site does not differ radically from those of Boston or Philadelphia. New Orleans, on the other hand, has a poor site below the level of the Mississippi River, which surrounds much of it. This proved disastrous when Hurricane Katrina hit in 2005. Why, then, is New York such a ...
Unit 1 PPT
... organize space and society, how we interact with each other in places and across space, and how we make sense of others and ourselves in our locality, region, and world. (De Blij) • The scientific study of the location of people & activities on the Earth’s surface, where & why human activities are l ...
... organize space and society, how we interact with each other in places and across space, and how we make sense of others and ourselves in our locality, region, and world. (De Blij) • The scientific study of the location of people & activities on the Earth’s surface, where & why human activities are l ...
Projection, Datum, and Map Scale
... of zones is a different Transverse Mercator projection that is slightly rotated to use a different meridian. UTM zone numbers designate 6 degree longitudinal strips extending from 80 degrees South latitude to 84 degrees North latitude. UTM is a conformal projection, so small features appear with the ...
... of zones is a different Transverse Mercator projection that is slightly rotated to use a different meridian. UTM zone numbers designate 6 degree longitudinal strips extending from 80 degrees South latitude to 84 degrees North latitude. UTM is a conformal projection, so small features appear with the ...
Chapter 1 Key Issue Essential Questions
... 4. What is Situation: what, why important - give concrete examples. 5. Mathematical Location: what does this mean? A. Meridians B. Parallel C. Longitude D. Prime Meridian - where & why important [be able to discuss & differentiate these concepts on a map] 6. Why is longitude important to us? How doe ...
... 4. What is Situation: what, why important - give concrete examples. 5. Mathematical Location: what does this mean? A. Meridians B. Parallel C. Longitude D. Prime Meridian - where & why important [be able to discuss & differentiate these concepts on a map] 6. Why is longitude important to us? How doe ...
Unit 1.1 Basic Concepts
... 1. As a reference tool to identify an object’s absolute and relative location. 2. As a communications tool to convey the distribution of human activities or physical features. © 2014 Pearson Education, Inc. ...
... 1. As a reference tool to identify an object’s absolute and relative location. 2. As a communications tool to convey the distribution of human activities or physical features. © 2014 Pearson Education, Inc. ...
THE MOON
... • The Moon’s shadow on Earth’s surface is about 7000 km wide—roughly twice the diameter of the Moon. • Outside of that shadow, no eclipse is seen. • Within the central region of the shadow, called the umbra, the eclipse is total. • Within the shadow but outside the umbra, in the penumbra, the eclips ...
... • The Moon’s shadow on Earth’s surface is about 7000 km wide—roughly twice the diameter of the Moon. • Outside of that shadow, no eclipse is seen. • Within the central region of the shadow, called the umbra, the eclipse is total. • Within the shadow but outside the umbra, in the penumbra, the eclips ...
Maps and Globes - Spokane Public Schools
... by the equator, or into western and eastern halves by the Prime Meridian. latitude- is the angular distance of any object from the equator measured in degrees. longitude- is the angular distance east or west on the earth's surface, measured by the angle contained between the meridian of a particular ...
... by the equator, or into western and eastern halves by the Prime Meridian. latitude- is the angular distance of any object from the equator measured in degrees. longitude- is the angular distance east or west on the earth's surface, measured by the angle contained between the meridian of a particular ...
History of longitude
The history of longitude is a record of the effort, by navigators and scientists over several centuries, to discover a means of determining longitude.The measurement of longitude is important to both cartography and navigation. Historically, the most important practical application of these was to provide safe ocean navigation. Knowledge of both latitude and longitude was required. Finding a method of determining longitude took centuries and involved some of the greatest scientific minds.