Geography

Distribution of temperature and inversion of temperature

Q: If mountain top is cold by normal lapse but middle slope is warmer than valley floor what combined pattern exists?

Normal altitude effect and valley inversion together Cold air can be trapped in valley floor while temperature again falls at higher altitude. Separate local and broad effects in exams.

Q: If temperature range near a large lake is lower than surrounding dry inland area what is the reason?

Local maritime like moderating effect of water body A large water body heats and cools slowly and can moderate temperature. Link lake effect with local moderation in exams.

Q: If a coastal cold current cools surface air close to dew point what event is possible?

Coastal fog A cold current can cool air and help condensation and fog. Link cold current and fog with coastal temperature in exams.

Q: If surface albedo decreases and moisture also decreases in an area why can daytime temperature rise?

Higher absorption and less evaporative cooling Direct answer: Option A, higher absorption and less evaporative cooling. Albedo is the reflected part of incoming sunlight. When albedo decreases, the surface reflects less and absorbs more solar energy, so daytime heating can increase. Moisture supports evaporation. Evaporation uses heat energy to change liquid water into water vapour, producing a cooling effect on the surface and nearby air. If moisture decreases, less water is available for evaporation, so this cooling is weaker. The two changes therefore act in the same warming direction during the day. Option A states both mechanisms correctly. Option B is the opposite: higher reflection and more moisture would generally reduce daytime warming. Option C is wrong because solar energy is not absent; the lower albedo means more of it is absorbed. Option D is irrelevant because altitude has not disappeared and is not the stated mechanism. Memory cue: low albedo absorbs; low moisture evaporates less, so the day heats more.

Q: If a high latitude coast does not freeze in winter and temperature is relatively mild what reason is likely?

Influence of warm ocean current Warm current can keep coastal water and air mild. Identify warm current influence on high latitude coasts in exams.

Q: If temperature inversion forms in a valley at night and factory smoke remains below in morning what is the best measure?

Reduce emissions during clear calm periods Emissions can be trapped in inversion so control is necessary. Understand practical management of inversion in exams.

Q: If low albedo high altitude and warm current are all given in a temperature distribution question what is the best method?

Weigh opposite and supporting effects of all factors Temperature distribution is controlled by several factors, and these factors may work in opposite directions. Low albedo means that a surface reflects less incoming solar energy and absorbs more, so it can promote warming. A warm ocean current can also raise the temperature of nearby coastal air. In contrast, increasing altitude usually causes lower temperature because air pressure and the normal lapse process lead to cooling with height. The final effect depends on their relative strength and location. Option B is correct because all the given factors must be considered together. Choosing only low albedo would ignore altitude and the warm current, while ignoring altitude or dismissing the current would also be incomplete. A good solution compares warming and cooling influences rather than treating one factor as automatically decisive. This combined analysis is the safest method when a question presents several controls of temperature.

Q: If forests are replaced by concrete and asphalt in an area what effect can occur on local night temperature?

Night temperature may increase Concrete and asphalt store daytime heat and release it at night. Link land use change with urban heat in exams.

Q: If an area has clear night and snow surface together what effect will occur on inversion and cooling?

Cooling and chance of inversion may increase Clear night increases radiational cooling and snow surface can remain cold. Check surface and sky conditions together in exams.

This Class 11 Geography topic explains how temperature varies across the Earth’s surface and through the atmosphere as part of solar radiation, heat balance, and temperature studies. Students learn about horizontal and vertical temperature distribution, the normal decrease of temperature with altitude, and the factors that influence it, including latitude, land and water, ocean currents, winds, and relief. The topic also examines temperature inversion, its causes, types, and effects on air movement, fog, pollution, and local weather conditions.

Hard · Level 4 · 25 questions

Practice questions

01If mountain top is cold by normal lapse but middle slope is warmer than valley floor what combined pattern exists?

0 reads0 helpful★ – (0)

Answer and explanation

Correct answer: C. Normal altitude effect and valley inversion together

Cold air can be trapped in valley floor while temperature again falls at higher altitude. Separate local and broad effects in exams.

Distribution of temperature and inversion of temperature

Practice questions

25What is the main reason temperature generally decreases from the Equator toward the poles?भूमध्य रेखा से ध्रुवों की ओर तापमान सामान्यतः घटने का सबसे मुख्य कारण क्या है?

Was this question useful?

Student Reviews

Analytics choices

25What is the main reason temperature generally decreases from the Equator toward the poles?