Hurricanes, Tornadoes & Monsoons

Question 1

Scientists are studying whether climate change raised the chance that a Category 4 cyclone named Vega would develop over the Indian Ocean in 2024. Which approach correctly uses climate models for this attribution?

Accepted Answer

Run large ensembles of a climate model for both the present-day climate (with current greenhouse‑gas levels) and a pre‑industrial climate, count how often cyclones like Vega occur in each set, and compare the frequencies or intensities to estimate the climate‑change effect.

Answer

Compare the sea‑surface temperature on the day Vega formed to the average temperature 30 years ago and attribute the difference directly to climate change.

Answer

Find a similar cyclone from the 1970s in the historical record and claim that because the world is warmer now, climate change made Vega twice as likely.

Answer

Run a single model simulation for 2024 with today’s greenhouse‑gas concentrations, see that it produces a cyclone, and conclude that climate change caused Vega.

Question 2

In a coastal region the ocean stays around 27 °C while the land heats up to about 34 °C during summer. Which statement correctly explains how this temperature contrast creates the summer monsoon wind?

Accepted Answer

The hotter land produces low pressure over the continent; higher pressure remains over the cooler ocean, so air moves from sea to land, bringing moist ocean air inland.

Answer

The hot land pushes the ocean water away, forcing the wind to blow from land toward the sea.

Answer

The greater heat over the ocean makes it evaporate more, creating a high‑pressure zone that drives air toward the land.

Answer

The land’s heat creates a permanent high‑pressure system over the continent that pulls wind from the sea all year round.

Question 3

Which statement best explains how temperature differences between land and sea create monsoon wind patterns?

Accepted Answer

In summer, land heats faster than the ocean, creating low pressure over the land; moist air from the ocean moves inland toward the low pressure, bringing heavy rain. In winter, land cools faster, creating high pressure over the land that pushes air back toward the sea, causing dry winds.

Answer

The moon’s gravity pulls more water onto the coast in summer, raising sea level and forcing water onto the land, which creates the monsoon.

Answer

Because the Earth rotates, winds always blow from east to west over the ocean, and this constant wind pushes rain onto the land, forming the monsoon.

Answer

The ocean is always colder than the land, so cold air over the sea sinks and pushes warm air over the land upward, creating a permanent wind from sea to land regardless of season.

Try three questions

Scientists are studying whether climate change raised the chance that a Category 4 cyclone named Vega would develop over the Indian Ocean in 2024. Which approach correctly uses climate models for this attribution?

In a coastal region the ocean stays around 27 °C while the land heats up to about 34 °C during summer. Which statement correctly explains how this temperature contrast creates the summer monsoon wind?

Which statement best explains how temperature differences between land and sea create monsoon wind patterns?

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