A. 250 m
B. 500 m
C. 750 m
D. 000 m
E. 500m
Choose the correct answer from the options given below.
MODIS Spatial Resolutions Explained
The question asks to identify the spatial resolutions of the Terra / Aqua MODIS sensors from the given options.
MODIS Sensor Capabilities
The Moderate Resolution Imaging Spectroradiometer (MODIS) instruments aboard NASA's Terra and Aqua satellites collect data in 36 spectral bands. These bands have different spatial resolutions, optimized for various Earth observation tasks.
Key Spatial Resolutions
- 250 m resolution: This resolution is used for 2 spectral bands primarily observing land surfaces (e.g., vegetation, snow/ice, land cover). Option A is correct.
- 500 m resolution: This resolution is used for 5 spectral bands, covering both land and ocean areas (e.g., clouds, land features, ocean color). Options B and E represent this resolution and are correct.
- 1000 m (1 km) resolution: This is the third main spatial resolution for MODIS, used for the remaining 29 bands, often focusing on atmospheric and oceanic properties. This resolution is not explicitly listed as an option to be chosen in combination with A, B, E.
Analysis of Options
- Option A (250 m) is a valid MODIS spatial resolution.
- Option B (500 m) is a valid MODIS spatial resolution.
- Option C (750 m) is not a standard spatial resolution for MODIS sensors.
- Option D (000 m) is physically impossible for spatial resolution.
- Option E (500m) is a valid MODIS spatial resolution, identical to Option B.
Based on the standard MODIS resolutions and the provided options, the correct spatial resolutions are 250 m and 500 m. Therefore, the combination including A (250 m), B (500 m), and E (500m) is correct.
The correct choice is the one that lists A, B, and E.
Important Questions from Remote Sensing - Teaching
- Given below are two statements, one labelled as Assertion (A) and other labelled as Reason (R). Select your answer from the codes given below :
Assertion (A) : Remote sensing is defined as the science and art of acquiring data about earth's objects from a distance without physical contact.
Reason (R) : The collection of data is only conducted by means of remote sensors installed in aircraft and satellite.
Codes: - Given below are two statements, one labelled as Assertion (A) and other labelled as Reason (R). Select your answer from the codes given below :
Assertion (A): Change detection in remote sensing is the process of identifying differences in the state of an object or phenomenon
Reason (R) : The use of GIS facilitates for digital change detection
Codes: - Most suitable spectral region for studying Urban Heat Island (UHI) effect is :
- Delineation of water - nonwater boundary in remote sensing is best done using :
- DEM (Digital Elevation Model) is best represented using :
