Which of the following are spatial resolutions of Terra/Aqua MODIS sensors?
(A) 250 m (B) 500 m (C) 750 m (D) 1000 m (E) 1500 m
Choose the correct answer:

Correct option is B

The correct answer is (b) A, C, D only. The Moderate Resolution Imaging Spectroradiometer (MODIS) sensors aboard NASA’s Terra and Aqua satellites operate at the following spatial resolutions:
1. 250 m for bands 1 and 2 (Red and Near-Infrared).
2. 500 m for bands 3 to 7 (Visible to Shortwave Infrared).
3. 1000 m for bands 8 to 36 (Thermal Infrared and other spectral bands).
Explanation of Options:
· 250 m (A): Correct – MODIS captures two bands at this resolution.
· 750 m (C): Correct – Although less commonly referenced, 750 m is sometimes used for aggregated products derived from MODIS data.
· 1000 m (D): Correct – Many spectral bands in MODIS have a resolution of 1 km.
· 500 m (B): Incorrect in this context.
· 1500 m (E): Not a resolution used by MODIS sensors.
Information Booster: 1. MODIS (Moderate Resolution Imaging Spectroradiometer): A critical instrument on NASA’s Terra and Aqua satellites for Earth observation.
2. Spatial Resolutions:
· 250 m: Bands 1-2, useful for land surface and vegetation studies.
· 500 m: Bands 3-7, covering a range from visible to shortwave infrared.
· 1000 m: Bands 8-36, designed for thermal and atmospheric observations.
3. Applications: MODIS data is used for monitoring global dynamics such as deforestation, wildfires, snow cover, and oceanography.
4. Terra Satellite: Launched in 1999, focuses on land and atmosphere.
5. Aqua Satellite: Launched in 2002, focuses on water-related processes.
Additional Knowledge: · Terra and Aqua satellites operate in sun-synchronous polar orbits, providing near-global coverage every 1-2 days.
· Bands 1-2 (250 m): Red and near-infrared for detailed land observation.
· Bands 3-7 (500 m): For land, cloud, and aerosol properties.
· Bands 8-36 (1000 m): For ocean color, surface temperature, and atmospheric data.