You can also give it a projection system by right clicking on the image -> Data Frame Properties -–> Coordinate System. Step 10: Your toposheet is Georeferenced now. Step9: Choose your desired Format & Output Location and then click on Save. Maps where prepared from the SOI toposheet of 1:25000 scale.
#Toposheet of india update
You can also choose Update Georeferencing which will add a world file to your existing toposheet and it will get georeferenced. The base map of the watershed prepared using Survey of India Toposheet numbered 47/J/7/NW.
![toposheet of india toposheet of india](https://c8.alamy.com/comp/T2JAY6/survey-of-india-73-e15-west-bengal-jharkhand-jhalda-tulin-muri-koncho-1928-map-T2JAY6.jpg)
After this click on Georeferencing and choose Rectify which will create a whole new georeferenced raster image. Step8: Check out the residual values, if they are quite less that means you have added the control points in the right manner. After that go to the georeferencing toolbar and click on View Link Table. Eg- since all toposheets are from India, it may be inferred that all the reigons represented by those topo sheets would have a tropical monsoon climate, with. Step7: Now repeat this all process for the remaining two corners on the right side. Knowing the number of toposheet can give us a clue about the general physical relief of the region and its climate which can be confirmed by other information given in the map. To bring it back, click on toposheet and right click on Z oom to layer. It is a chance that your toposheet will suddenly disappear. Step6: Now move to the left bottom corner and add control point. But before entering convert degree minutes seconds to decimal degrees. X will be your Longitude (higher value) and Y is latitude. Step4: Now click on the corner of the toposheet as shown in the image below and add Input X & Y. Now go to georeferencing toolbar and click Add Control Points. Also mention whether they are in metres or in feet. (f) State the highest and the lowest spot heights found on the map extract. Contour interval of the given toposheet is 20 metres. Answer: Contour interval means the difference between two consecutive contour lines. Step3: Now zoom your map and check the coordinates printed on the corner of the toposheet. State the contour interval of the toposheet provided to you. Now go to Customize -> Toolbars-> Georeferencing. Step1: Add toposheet by clicking on A dd Data option. 45 D/10 must not be taken out of the examination hall. (ii) The extract of Survey of India Map Sheet No. Note: (i) In all Map Work, make wise use of arrows to indicate positions of countries, cities and other insertions, to avoid overcrowding parts of the map. Now Steps involved in Georeferencing are: To be supplied with this Paper: Survey of India Map Sheet No. It is basically a process which is used to provide spatial locations to the raw map/aerial imagery so that it can get the Earth’s coordinates and become a GIS dataset. ArcMap which is a part of Esri’s ArcGIS Suite is capable of performing GIS operations like Geostatistical processes, Network Datasets Analysis, Map Publishing etc.
![toposheet of india toposheet of india](https://www.ijser.org/paper/Groundwater-vulnerability-assessment-through-DRASTIC-model-for-Amravati-taluka/Image_002.jpg)
ArcMap is an application which is used to perform map based tasks like Map Analysis, Cartography etc by viewing, editing, processing and analysing the Geospatial Data.