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GEOMATICS QUIZ-I Introduction to GIS

GEOMATICS Question Bank Series Main Topic: GIS Sub Topic: GIS Introduction   Q1. GIS stands for 1.       Geographic Information System 2.       Generic Information System 3.       Geological Information System 4.       Geographic Information Sharing   Q2. Which type of data is used in GIS? 1.       Binary data 2.       Spatial data 3.       Complex data 4.       Statistical data   Q3. How many directions can be represented using GIS? 1.       X direction only 2.       Y direction only 3.       X, Y and Z all three 4.       None of the above   Q4. GIS tools allow the user to perform 1.       Create data 2.       Edit data 3.       Analyze data 4.       All of the above   Q5. GIS can be used in applications 1.       Mining 2.       Transportation 3.       Coastal Studies 4.       All of the above   Q6. Which in not component of GIS 1.       Hardware 2.       Software 3.       People 4.       GPS    Q7. Which is open source GIS software? 1.       ArcGIS 2.       Map/Info 3.       QGIS 4.

What are Satellite/Sensor Characteristics

Satellite/Sensor Properties for Image Processing This article will bring information and characteristics of satellite/sensor.   It is very important to know the characteristics of satellite image , this help user to select and acquire satellite image as per need of research and project.  Image can be select based on mapping purpose and for this basic properties are very important for selection of satellite image, which are below- Spectral Resolution Spatial Resolution Temporal Resolution These properties play significant role for better image classification as per requirement of project. These properties will help to select appropriate image as per need of project for example in first case, spatial resolution may be important if detail information required but in other case if repeatedly satellite images required then temporal resolution become important. Instead of these resolution swath of satellite image is also important as it describe the coverage of satellite imag