Distinguish Between the Following

MAPPING SKILLS

VI. Distinguish Between the Following

1. Globe and Map

Globe

• A Globe a three dimensional presentation of the entire world. It is not easy to carry.

• Globe alludes to the spherical - shaped model of the earth

Map

• A Map is a two dimensional presentation of particular regions of the world. It is easy to carry.

• It presents the physical features of a particular region on the earth on a plane surface.

2. Aerial photographs and satellite imageries

Aerial Photographs

• Aerial photography refers to the technique of obtaining information about places or object or phenomena with the help of photographs taken using cameras mounted on low flying birds, balloons, helicopters, aeroplanes and drones.

• The aerial photographs are captured continuously with a time gap of 10 - 30 seconds at a fixed height Each photo will have a slight over lap of the area in the preceding photo

Satellite Imageries

• The term 'Satellite imagery’ refers to digitally transmitted images of the satellites

• Satellite remote sensing is the science of sensing is the science of collecting data about an object or area from artificial satellites orbiting the earth.

3. GIS and GPS

GIS

• Geographic Information system is a computer - based tool for managing a large amount of data collected for a given geographic region through remote sensing. GPS and other sources.

•The geographic information system is a combination of computer hardware, software, geographic data, and the personal.

GPS

• Global position system technology has tremendous applications in every - thing from mobile phones, watches, bulldozers, shipping containers and ATMs.

• The main purpose of GPS is to help in providing accurate transport data. It helps in military searches and rescue in wars. It can work as a reliable tourist guide.