Question

What is the temporal resolution of MODIS?

• A. 1 day
• B. 5 days
• C. 10 days
• D. 14 days

Hint:

• Temporal resolution is the revisit frequency of a satellite for the same location.
• MODIS is on two NASA satellites (Terra and Aqua).
• Due to its wide viewing swath, MODIS provides near-daily global coverage. Most locations are imaged every 1-2 days.
• This high temporal resolution is excellent for monitoring dynamic environmental phenomena (e.g., vegetation phenology, snow cover, sea surface temperature).

Answer 1

The Correct Option is A

To determine the temporal resolution of MODIS (Moderate Resolution Imaging Spectroradiometer), we need to understand what temporal resolution means and the characteristics of the MODIS instrument.

1. Understanding the Concepts:

- Temporal Resolution: Refers to the frequency with which a satellite sensor revisits and acquires data for the same location on Earth. It is often expressed in days.
- MODIS: A key instrument aboard the Terra and Aqua satellites, providing comprehensive observations of the Earth's land, oceans, and atmosphere.

2. Characteristics of MODIS:

MODIS is designed to provide a high temporal resolution, allowing for frequent monitoring of dynamic Earth processes. It achieves this through its wide swath width, which enables it to cover almost the entire Earth every day.

3. Determining the Temporal Resolution:

MODIS has a temporal resolution that allows it to view the entire Earth approximately every 1 to 2 days. For practical purposes and general understanding, the temporal resolution is often referred to as 1 day.

Final Answer:

The temporal resolution of MODIS is 1 day.