List-I
(Types of resolution)List-II
(Description)A. Spatial Resolution I. Number of independent channels B. Temporal Resolution II. Sensitivity of the detectors C. Spectral Resolution III. Frequency of measurement D. Radiometric Resolution IV. Smaller spatial measurement
Choose the correct answer from the options given below :
Understanding Resolution Types in Data Acquisition
This question requires matching different types of resolution (List-I) with their corresponding descriptions (List-II). Resolution is a critical concept in fields like remote sensing and digital imaging, defining the level of detail captured.
Spatial Resolution Explained
Spatial Resolution refers to the level of detail a sensor can capture from the ground. It's often defined by the size of the smallest object that can be detected or distinguished. In image terms, it relates to the size of a single pixel on the ground. Therefore, the best match is:
- IV. Smaller spatial measurement
Temporal Resolution Explained
Temporal Resolution relates to the time component of data acquisition. It describes how frequently data is collected or updated for the same area. High temporal resolution means measurements are taken often. The corresponding description is:
- III. Frequency of measurement
Spectral Resolution Explained
Spectral Resolution describes a sensor's ability to distinguish between different wavelengths (or spectral bands) of the electromagnetic spectrum. A sensor with higher spectral resolution can differentiate between finer spectral intervals. This corresponds to:
- I. Number of independent channels (Each channel typically captures a specific range of wavelengths)
Radiometric Resolution Explained
Radiometric Resolution refers to the sensor's ability to distinguish between different intensity levels of electromagnetic radiation. It essentially measures the sensitivity of the detector to variations in signal strength (brightness). This matches with:
- II. Sensitivity of the detectors
Summary of Matches
Based on the explanations above, the correct matching is:
| List-I (Type) | List-II (Description) |
|---|---|
| A. Spatial Resolution | IV. Smaller spatial measurement |
| B. Temporal Resolution | III. Frequency of measurement |
| C. Spectral Resolution | I. Number of independent channels |
| D. Radiometric Resolution | II. Sensitivity of the detectors |
This corresponds to the option A-IV, B-III, C-I, D-II.
Important Questions from Remote Sensing
- Which of the following are major applications of Remote Sensing and GIS in disaster management ?
A. Real time flood monitoring
B. Hazard Zonation mapping
C. Post disaster damage assessment
D. Earthquake prediction with precise timing
Choose the correct answer from the options given below : Among the following sensors, which are the most efficient for detecting forest fire ?
A. Optical Sensor
B. Thermal Infrared Sensor
C. Microwave Sensor
D. Smoke Detector Sensor
E. Ultrasonic Sensor
Choose the correct answer from the options given below :
- Match List - I with List - II.
List - I Resolution List - II Capabilities A. Spatial Resolution I. Narrowness of the spectral bands B. Spectral Resolution II. Variations in brightness C. Radiometric Resolution III. Revist capability D. Temporal Resolution IV. Size of the pixel
Choose the correct answer from the options given below : - Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): A variety of Remote Sensing methods can be used to detect, monitor and respond to natural disaster as well as to assess disaster vulnerability.
Reason (R): Tonal values are important because they often form distinct image patterns that may be of great significance in image interpretation.
In the light of the above statements, choose the most appropriate answer from the options given below: The operations aim to correct distorted and degraded image data to create a more faithful representation of the original Earth features during disaster is known as:
