Satellite Meteorology MCQ — 26 Practice Questions with Answers

Q1. Consider the following statements about satellite imagery: 1. Visible satellite imagery can only be viewed during the day because it depends on reflected sunlight. 2. Infrared satellite imagery can show clouds during both day and night. 3. Water-vapor imagery directly measures surface wind speed over oceans. Which of the statements given above are correct?

Q2. Consider the following statements about ocean-related satellite meteorology: 1. SCATSAT-1 carries a Ku-band scatterometer that provides ocean-surface wind vector data for weather forecasting, cyclone detection and tracking. 2. Oceansat-2 carries an Ocean Colour Monitor, a Ku-band Pencil Beam scatterometer and ROSA. 3. Microwave backscatter measured by a scatterometer over oceans can be used to derive surface wind speed and direction. 4. A scatterometer's primary function is to measure only total ozone profiles over land. Which of the statements given above are correct?

Q3. Consider the following statements about meteorological satellite orbits: 1. WMO describes the space-based observing backbone as including Sun-synchronous low Earth orbit satellites and a ring of geostationary Earth orbit satellites. 2. Geostationary visible/infrared imaging is especially suited to very frequent and constant sampling of rapidly evolving phenomena. 3. Sun-synchronous satellites are preferred mainly because they hover continuously over one fixed point on Earth's surface. 4. Polar-orbiting satellite measurements for a particular region are updated continuously like GOES observations. Which of the statements given above are correct?

Q4. Consider the following statements about the space-based component of meteorological observation: 1. Space-based meteorological observations are performed through satellite programmes implemented by space agencies. 2. International coordination among satellite operators is achieved through the Coordination Group for Meteorological Satellites. 3. The primary goal of this coordination is mineral exploration, not weather monitoring or climate monitoring. Which of the statements given above are correct?

Q5. Consider the following statements about Sun-synchronous low Earth orbit satellites in meteorology: 1. They provide global coverage useful for global numerical weather prediction. 2. They are useful for polar meteorology and climatology. 3. For these applications, very frequent sampling is more critical than global coverage and high accuracy. Which of the statements given above are correct?