Geodetic surveying is a specific type of surveying that takes the curvature of the Earth into account. These surveys cover large areas of land and provide high levels of accuracy.Know More
Providing that a survey area covers up to 100 square miles, plane surveying is a useful survey technique. Plane surveys ignore any curvature of the Earth's surface. Lines between two points are straight lines and all angles are plane angles. Plane surveys are economical and are suitable for most major construction projects, like highways, bridges and factories. However, for plane surveys to be accurate, control points must exist between those straight lines. This is where geodetic surveying is useful.
Geodetic surveys cover much larger land areas and take the curvature of the Earth's surface into account. All lines in geodetic surveys are arcs and angles are spherical angles. These measurements are useful for making corrections for curvature on maps and plans. Geodetic surveys also provide the series of control points across the Earth's surface that make accurate plane surveys possible.
In the United States, the National Oceanic and Atmospheric Administration - NOAA - operates the National Geodetic Survey. This effort provides the backbone of all positioning projects in the nation. The National Geodetic Survey also maintains and provides access to the National Spacial Reference System, a consistent and definitive coordinate system with information on data such as latitude, longitude, gravity and shorelines.Learn More
An ogive graph is a smooth S-shaped curve that is used in statistics. The graph is obtained by plotting the values of cumulative frequency against the upper boundary points of the class intervals.Full Answer >
An infographic is a visual way to convey large amounts of data and text, according to Entrepreneur magazine. Because infographics are visual, readers can absorb much of the information at a glance. Infographics can be used to illustrate the results of a survey or poll, to show sales declines or growths, to compare issues or products and much more.Full Answer >
A scattergram or scatter plot defines a relationship between two variables related to cause and effect. According to the American Society of Quality, a scattergram illustrates pairs of numerical data on graphs with one variable on each axis to explore the relationship between them.Full Answer >
Graphs are beneficial because they summarize and display information in a manner that is easy for most people to comprehend. Graphs are used in many academic disciplines, including math, hard sciences and social sciences. They make appearances in corporate settings, serving as useful tools to convey financial information and facilitate data analysis.Full Answer >