IGNOU PGDGI MGY 102 SOLVED ASSIGNMENT

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MGY 102 2025 - English

Tutor Marked Assignment

MGY-102: Remote Sensing and Image Interpretation

Course Code: MGY-102

Assignment Code: MGY-102/MSCGI/TMA/2025

Max. Marks: 100

Note: Attempt all questions. The marks for each question are indicated against it. Write all answers in your own words; do not copy from the Self Learning Materials (SLMs). Write your answers in about 200 and 400 words for short and long answers, respectively.

Part A

1. Describe spectral signatures of soils, minerals and rocks and the factors influencing it. Support your answer with neat well labelled diagrams, wherever required.

2. Discuss various types of image resolutions giving suitable examples.

3. Write short notes on the following:

a) Electromagnetic spectrum

b) Stefan-Boltzmann and Wien's laws

c) Landsat series of satellites

d) Indian space programmes

e) BSQ data format

f) METHODS

Part B

4. Discuss the elements of aerial photo interpretation and interpretation keys.

5. Give an overview of image classification methods.

6. Write short notes on the following:

a) Minimum mappable unit

b) Digital image and its types

c) Field equipments required for ground truthing

d) Image enhancement

e) Post classification steps

f) Difference between true colour and false colour composites

MGY 102 (January 2026 - July 2026) - ENGLISH

Tutor Marked Assignment

MGY-102: Remote Sensing and Image Interpretation

Course Code: MGY-102

Assignment Code: MGY-102//TMA/2026

Max. Marks: 100

Note: Attempt all questions. The marks for each question are indicated against it. Write all answers in your own words; do not copy from the Self Learning Materials (SLMs). Write your answers in about 300 and 600 words for short and long answers, respectively.

Part A

1. Discuss in detail, energy-earth interaction giving suitable example.

2. Describe various types of multispectral scanning systems.

3. Write short notes on the following:

a) Remote sensing system

b) Spectral signature of vegetation

c) Spatial image resolution

d) IRS series

e) Radarsat

f) Remote sensing data product

Part B

1. Describe planning and collection of ground truth data. Add a note on its importance in geoinformatics studies.

2. What is image enhancement? Discuss in detail, the techniques used to enhance images.

3. Write short notes on the following:

a) Elements of image interpretation

b) Land use land cover

c) Geometric correction

d) Image histogram and its significance

e) Kappa coefficient

f) Image transformation

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