Geography

Distribution of temperature and inversion of temperature

Q: Why can isotherms be relatively regular in the Southern Hemisphere?

Oceans cover a larger area there Oceans make temperature more uniform and moderate. In exams link Southern Hemisphere regularity with ocean dominance.

Q: If altitude increases by one thousand meters what type of temperature change is generally expected?

Temperature will decrease Due to normal lapse rate temperature decreases with height. In numerical questions first identify the direction of lapse.

Q: If a valley has calm wind and clear sky at night which condition is more likely?

Cold air may collect below and form inversion Cold dense air can collect in the valley and form inversion. Remember valley night and clear sky together in exams.

Q: Why can fog and smoke appear together more during temperature inversion?

Stable cold lower layer traps both moisture and pollutants Vertical mixing is weak in inversion so fog and pollution stay trapped below. Remember the role of stability in exams.

Q: Why can high plateaus be cool even at low latitudes?

Their altitude lowers temperature Low latitude gives heat but altitude can reduce temperature. In exams check combined effect of latitude and altitude.

Q: If a place is at high latitude but is affected by a warm ocean current how can its temperature be?

It can be relatively mild A warm current can make a high latitude coast relatively warmer. In exams remember currents can modify latitude effect.

Q: Which is the best description of land water contrast in temperature distribution?

Land heats and cools faster than water Land has lower heat capacity so its temperature changes quickly. In exams link land water contrast with temperature range.

Q: If clouds decrease during day and sky remains clear at night what may happen to daily temperature range?

Daily temperature range may increase More solar heating by day and more radiational cooling by night increase range. Link fewer clouds with higher range in exams.

Q: Why will daily temperature range remain low in a humid coastal area with more clouds?

Moisture sea and clouds moderate temperature Humidity and maritime influence reduce day night temperature difference. In exams combine reasons for low range.

Q: In what type of area can air pollution problem during inversion be most serious?

In a city located in a valley In a valley cold stable air and pollutants can be trapped below. Link valley city and inversion with pollution 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.

Medium · Level 2 · 25 questions

Practice questions

01Why can isotherms be relatively regular in the Southern Hemisphere?

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Answer and explanation

Correct answer: A. Oceans cover a larger area there

Oceans make temperature more uniform and moderate. In exams link Southern Hemisphere regularity with ocean dominance.

Distribution of temperature and inversion of temperature

Practice questions

01Why can isotherms be relatively regular in the Southern Hemisphere?दक्षिणी गोलार्ध में समताप रेखाएं अपेक्षाकृत नियमित क्यों हो सकती हैं?

03If a valley has calm wind and clear sky at night which condition is more likely?यदि किसी घाटी में रात को शांत हवा और साफ आकाश है तो कौन सी स्थिति अधिक संभावित है?

04Why can fog and smoke appear together more during temperature inversion?तापमान उलटाव में धुंध और धुआं एक साथ अधिक क्यों दिखाई दे सकते हैं?

05Why can high plateaus be cool even at low latitudes?किस कारण ऊंचे पठार कम अक्षांश पर होते हुए भी ठंडे हो सकते हैं?

07Which is the best description of land water contrast in temperature distribution?तापमान वितरण में भूमि जल अंतर का सबसे सही वर्णन कौन सा है?

09Why will daily temperature range remain low in a humid coastal area with more clouds?यदि किसी आर्द्र तटीय क्षेत्र में बादल अधिक हैं तो दैनिक ताप परिसर कम क्यों रहेगा?

11Why is temperature inversion considered a stable atmospheric condition?किस कारण तापमान उलटाव को स्थिर वायुमंडलीय दशा माना जाता है?

12In which condition is temperature inversion least likely to form?किस स्थिति में तापमान उलटाव बनने की संभावना सबसे कम होगी?

13How can combined effect of albedo and vegetation be understood in temperature distribution?तापमान वितरण में एल्बीडो और वनस्पति का संयुक्त प्रभाव कैसे समझा जा सकता है?

14What can cause temperature difference between two places at the same altitude?एक ही ऊंचाई पर स्थित दो स्थानों में तापमान का अंतर किस कारण हो सकता है?

15Under which condition can local temperature differ from the normal altitude rule?किस स्थिति में स्थानीय तापमान ऊंचाई के सामान्य नियम से अलग दिख सकता है?

17Why is looking only at latitude not sufficient while studying temperature distribution?तापमान वितरण का अध्ययन करते समय केवल अक्षांश देखना क्यों पर्याप्त नहीं है?

18Bending of isotherms northward or southward can indicate what?समताप रेखाओं का उत्तर दक्षिण की ओर मुड़ना किस बात का संकेत हो सकता है?

19Under which condition can a coastal area remain relatively cool even at low latitude?किस स्थिति में तटीय क्षेत्र अपेक्षाकृत ठंडा रह सकता है भले ही अक्षांश कम हो?

21What is the safest exam identification between inversion and normal lapse rate?तापमान उलटाव और सामान्य तापह्रास में परीक्षा के लिए सबसे सुरक्षित पहचान क्या है?

22Under which condition will frost formation be less likely?किस स्थिति में पाला बनने की संभावना कम होगी?

25Which statement is most balanced about temperature distribution?तापमान वितरण में कौन सा कथन सबसे संतुलित है?

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01Why can isotherms be relatively regular in the Southern Hemisphere?

03If a valley has calm wind and clear sky at night which condition is more likely?

04Why can fog and smoke appear together more during temperature inversion?

05Why can high plateaus be cool even at low latitudes?

07Which is the best description of land water contrast in temperature distribution?

09Why will daily temperature range remain low in a humid coastal area with more clouds?

11Why is temperature inversion considered a stable atmospheric condition?

12In which condition is temperature inversion least likely to form?

13How can combined effect of albedo and vegetation be understood in temperature distribution?

14What can cause temperature difference between two places at the same altitude?

15Under which condition can local temperature differ from the normal altitude rule?

17Why is looking only at latitude not sufficient while studying temperature distribution?

18Bending of isotherms northward or southward can indicate what?

19Under which condition can a coastal area remain relatively cool even at low latitude?

21What is the safest exam identification between inversion and normal lapse rate?

22Under which condition will frost formation be less likely?

25Which statement is most balanced about temperature distribution?