Geoinfosys Technologies GIS Analyst Interview Questions, Process, and Tips

Resolution refers to the level of detail in a GIS dataset. It can be spatial, temporal, spectral, or radiometric.

• Spatial resolution refers to the size of the smallest feature that can be detected in an image or dataset.

• Temporal resolution refers to the frequency at which data is collected over time.

• Spectral resolution refers to the number and width of the bands in a multispectral image.

• Radiometric resolution refers to ...read more

Spectral resolution refers to the ability to distinguish between different wavelengths of electromagnetic radiation, while spatial resolution refers to the ability to distinguish between different locations on the ground.

• Spectral resolution is measured in terms of the number of bands in an image and the width of each band.

• Spatial resolution is measured in terms of the size of each pixel in an image.

• Higher spectral reso...read more

Satellite images are captured from space while toposheets are 2D maps of the earth's surface.

• Satellite images are captured from space using satellites and provide a bird's eye view of the earth's surface.

• Toposheets are 2D maps of the earth's surface that show the terrain, elevation, and other features.

• Satellite images are more detailed and can capture changes over time, while toposheets are static and provide a general...read more

GIS components include data, software, hardware, and people. Topological errors can be resolved using tools like topology rules and editing.

• GIS components include data, software, hardware, and people.

• Topological errors can be resolved using topology rules and editing.

• Topology rules ensure that features are connected and do not overlap.

• Editing tools like snapping and tracing can help fix topological errors.

• Examples of t...read more