Jose Antonio Vazquez
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Tema 1 Meteo Quiz on 11. teledetection, created by Jose Antonio Vazquez on 04/01/2018.

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Jose Antonio Vazquez
Created by Jose Antonio Vazquez over 6 years ago
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11. teledetection

Question 1 of 10

1

1- Which of the following channels can be used to estimate cloud top height?:

Select one of the following:

  • Visible.

  • Water vapour.

  • IR and Visible.

  • IR.

Explanation

Question 2 of 10

1

2- Which of these cloud types can't be observed in the water vapour channel?

Select one of the following:

  • Cumulus humilis.

  • Cumulonimbus capillatus (anvil cirrus).

  • Cirrus.

  • Cumulus humilis and cirrus.

Explanation

Question 3 of 10

1

3- Which of these cloud types can be viewed in the visible channel?

Select one of the following:

  • Cirrus and cumulonimbus.

  • Cumulus.

  • Low stratus.

  • All of them.

Explanation

Question 4 of 10

1

4- What is the smallest distinguishable feature that can be seen in the Meteosat visible channel?

Select one of the following:

  • 1.0 Km.

  • 2.5 km.

  • 7.5 km.

  • 10.5 km.

Explanation

Question 5 of 10

1

5- What is the cone of silence? (Choose the best answer.)

Select one of the following:

  • The volume under the lowest elevation of the beam

  • The volume above the highest elevation of the beams

  • The volume between the lowest and highest scans in clear air mode

  • The volume between the lowest and highest scans in precipitation mode

Explanation

Question 6 of 10

1

6- In which of the following instances would precipitation often go completely unobserved by radar due to the geometry of the radar beam?

Select one of the following:

  • A tall thunderstorm producing rain very close to the radar

  • A tall thunderstorm producing rain about 50 km (31 mi) away from the radar

  • A low, stratiform cloud producing rain near the radar's maximum unambiguous range and a thunderstorm producing rain behind a mountain located 10 km (6 mi) from the radar.

  • None of them.

Explanation

Question 7 of 10

1

7- What usually doesn't constitute ground clutter that we often see near a radar?

Select one of the following:

  • Insects

  • Birds

  • Large particulate matter, like dust

  • Fog

Explanation

Question 8 of 10

1

8- Which of the following phenomena appears on radar as evenly scattered bands of weak reflectivity or ripples near the radar, especially during the afternoon? (Choose the best answer.)

Select one of the following:

  • Smoke

  • Chaff

  • Horizontal convective rolls

  • Anomalous propagation

Explanation

Question 9 of 10

1

9- What reflectivity value is a general threshold that indicates hail? (Choose the best answer.)

Select one of the following:

  • 40 dBZ

  • 50 dBZ

  • 60 dBZ

  • 70 dBZ

Explanation

Question 10 of 10

1

10- Weather satellites measure radiation emitted by the Earth or reflected solar radiation

Select one of the following:

  • They are usually passive detection devices.

  • They are usually active detection devices.

  • They are usually none of them.

  • They are usually passive both of them.

Explanation

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