There are four methods of levelling used in the field of construction. Levelling methods are used to calculate the height difference at different ground levels. The following methods are used to determine the difference in elevation of various points: Let’s learn about these methods of leveling. 1. Barometric Levelling This method depends on the principle … Read more
What Is Sounding In Hydrographic Surveying? In hydrographic surveying, sounding is a method of calculating the depth of water in a specified location. This is usually done using specialized instruments such as sonars or echosounders, which emit sound waves and measure the time it takes for them to bounce back from the ocean floor or … Read more
Contour Interval Definition Contour interval is the elevation difference between two consecutive contour lines on a topographical map. Description Every topographical map have its own unique contour intervals. It can be specified based on the size of the area to be mapped. Most of the topographic map specified it on the right hand bottom side … Read more
There are various types of lunar eclipse based on the position of lunar. In this post, we will discuss all the major types of lunar eclipse. Different Types Of Lunar Eclipse We will discuss above mentioned types of lunar eclipse in detail. Let’s Start. 1. 1st Penumbral Lunar Eclipse When the Moon travels through the … Read more
Introduction Of Latitude And Longitude In simple words, latitude and longitude are the geographic coordinates. Latitude and longitude are grid of lines in a well defined way. Numerous earth surface features can be depicted by using latitudes and longitudes. These coordinates make it simple to establish the position, separation, and direction of various points. What … Read more
In this article, we will discuss about prismatic compass. It is a surveying instrument. We will know all the key details about prismatic compass. Let’s Start. Introduction Of Prismatic Compass A prismatic compass is a surveying tool commonly used to determine traversal bearings, angles between them, waypoints, and directions. It is known as a prismatic … Read more
What Is Compass Surveying? Compass surveying is a particular type of survey which is used to locate an object by linear measurements and angular measurements. Magnetic compass is used to measure angles, while chain or tape is used to measure lengths. Compass surveying employs the concept of traversing. Traverse lines are made with the use … Read more
What Is Engineering Survey? Engineering survey is conducted whenever there is a need to gather enough information for the planning and design of engineering projects like roads, highways, bridges, reservoirs, canals, tunnels, etc. Description Before beginning any civil engineering project, an engineering survey is required to ensure that structures and infrastructure are properly placed. In … Read more
In this article, we will discuss about astronomical survey. Let’s Start! Astronomical Survey Definition Astronomical survey is basically a photograph without a clearly defined observational target. It includes collection of pictures, spectra, or other observations of objects with a same type or feature. Astronomical Observations Surveying Description Surveys are the best method for discovering moving … Read more
What Is Geodetic Survey? Geodetic survey uses size, shape, and curvature of earth establish the exact location of fixed points on its surface. This type of survey is used when area is very big. For large area, plane survey does not give accurate results. Hence, geodetic survey is used. Purpose Of Geodetic Survey Geodetic Survey’s … Read more