Video summary

Rajasthan Computer Anudeshak Bharti 2026 | Rajasthan Geography Class – जलवायु Part 2 | Deendayal Sir

Main summary

Key takeaways

Educational

Main ideas / lessons from the subtitles

  • The session continues a Rajasthan Geography class on Climate (Part 2) aimed at Rajasthan’s competitive exams (e.g., Rajasthan Computer Anudeshak Bharti 2026 / related TET exam family).

  • The instructor revises key climate basics from the previous class:

    • Climate = the long-term atmospheric conditions of an area (typically 30–35 years).
    • Climate vs. weather is differentiated, and exam-style framing is emphasized (e.g., “climate of Rajasthan”).
    • Rajasthan climate overview
      • Overall described as subtropical.
      • Dungarpur and Banswara are described as tropical because they lie very near / on / south of the Tropic of Cancer.

Classification of seasons based on climate (Sun’s position)

The instructor classifies Rajasthan seasons using the Sun’s position as Earth moves.

Key latitude lines

  • Equator
  • Tropic of Cancer = 23° N
  • Tropic of Capricorn = 23° S

Sun directly over key dates

  • 21 March & 23 September → Sun directly on the Equator
  • 21 June → Sun directly on the Tropic of Cancer
  • 22 December → Sun directly on the Tropic of Capricorn

Season timing in the Northern Hemisphere (India/Rajasthan)

  1. Summer

    • From March to mid-June
    • Reason: after March, the Sun moves northward; by 21 June it causes maximum heating in the Northern Hemisphere.

  2. Rainy (Monsoon)

    • From mid-June to September
    • Monsoon arrival mentioned around 15–16 June.

  3. Winter

    • From October to February

Winter subdivision (2 parts)

  • 1) Monsoon retreat / monsoon withdrawal
    • October–November
  • 2) Autumn
    • December–February

Day/night length & temperature extremes across hemispheres

  • On 21 March & 23 September:
    • Day and night are equal in both hemispheres.
  • On 21 June:
    • Longest & hottest day in the Northern Hemisphere
  • On 22 December:
    • Shortest & coldest day in the Northern Hemisphere

Conversely:

  • 22 December:
    • Longest & hottest day in the Southern Hemisphere
  • 21 June:
    • Shortest & coldest day in the Southern Hemisphere

Exam focus: “longest/hottest” vs “shortest/coldest” associations.

Summer-specific climate phenomena in Western Rajasthan

Hot wind: Loo

  • Loo is a hot, dry wind blowing west to east in western Rajasthan (linked to the Thar Desert).
  • Exam framing:
    • “Hot wind blowing from the Thar Desert in western Rajasthan is called Loo.”

Dust storm: Bambulia / Ardaav

  • Bambulia (also called Ardaav) is described as a dust storm in western Rajasthan.
  • Mechanism explained (summer):
    • Hot air rises
    • Cold air descends to replace it
    • Rising hot air causes pressure decreases at the center
    • Higher pressure outside pushes air inward
    • Result: dust storm rises (Bambulia/Ardaav)

Exam-oriented pressure detail

  • Air pressure is low in the center of the Bambulia system.
  • Air pressure is higher outside / around it.

Wind speed

  • Very strong winds are mentioned (example: around 180 km/h).

Air pressure & barometer readings (exam cues)

Measuring air pressure

  • Air pressure is measured by a barometer.

Dryness → humidity → air pressure trend

  • Moving from dry to humid leads to air pressure increasing.

What falling/rising barometer readings indicate

  • Barometer reading falls → indicates thunderstorm risk
  • Barometer reading rises slowly → indicates rainfall
  • Barometer reading rises continuously → indicates clear weather

Isobars / air pressure map examples (Rajasthan)

  • Example isobar mentioned:
    • 997 mb passes through places/districts including Bikaner, Phalodi, Jaisalmer
  • Other isobars referenced:
    • 998, 999, 1000 mb with districts spread across regions
  • Instructor repeatedly emphasizes:
    • Dryness → humidity → air pressure increases

Winter-focused points: cold waves + pressure peak + temperature contrast logic

Highest air pressure in January

  • In winter, especially January, Sri Ganganagar and Bikaner are said to record the highest air pressure
  • Numbers mentioned include up to ~1018 millibars.

Reason for stronger winter effects

  • Influence of cold waves from the Himalayan region.

Day-night temperature difference: concept & causes

  • Temperature difference = difference between day temperature and night temperature.

In western Rajasthan, greater day-night difference is attributed to:

  • Large sand/soil grains
  • Lime accumulation
  • Lime heats quickly in daytime and cools quickly at night

The instructor uses analogies (soil/brick heating & cooling) to reinforce that surface properties affect temperature change rates.

Important Rajasthan exam facts about temperature differences

  • Highest daily temperature difference district: Jaisalmer
  • Highest annual temperature difference district: Churu
  • Highest temperature difference place: Churu
  • Lowest temperature difference district: Dungarpur
  • Lowest temperature difference place: Mount Abu (Sirohi)

Direction pattern

  • Less in the south-eastern part
  • More in the north-western part

Storm frequency (district-based)

Maximum storms (days/year)

  • Sri Ganganagar: 27
  • Hanumangarh: 24
  • Bikaner: 15

Minimum storms (days/year)

  • Jhalawar: 3
  • Ajmer & Kota: 5 (both mentioned)

Winds in Rajasthan (types + naming by direction)

Winds entering Rajasthan: naming from the wind’s direction

From the viewpoint of winds entering Rajasthan, names are:

  • From North: Uttaradhya / Drona
  • From South: Dikhanad / Lankau
  • From East: Purvai / Aaguni
  • From West: Pachhwa / Aathuni

Winds by intermediate directions (added)

  • Northeast: Ishan direction (described as a “sunny wind”)
  • Southeast: Agniya direction (“flowing wind”)
  • Southwest: described as sea wind
  • Aerial direction (combined south–north–west region) → Sur

Seasonal mnemonic mentioned

A saying/sequence connects months with winds and crop relevance:

  • “Sawan moves Surya”
  • “Bhadu moves easterly”
  • Mentioned months: Asoj and Sawan/Bhadu
  • Pichhwa:
    • described as dry winds from Pakistan
    • (dryness helps crops; implied fewer disease/insects)
  • Crop mnemonic:
    • “Satu Dhan” (linked to crops like moong/moth/millet as mentioned)

Instructor/session logistics and guidance (secondary content)

  • Encouraged joining a free computer instructor batch and preparing for the notification.
  • Exam/procedure reminders:
    • Documents readiness for verification
    • Result timing and form submission around August, including 23rd August
  • Teaching method mentioned:
    • Continue practice sets for statement-reason type questions to improve performance after a few days.

Speakers / sources featured (as named in subtitles)

  • Deendayal Parik / Deendayal Sir (main speaker/instructor)
  • RWS TET Exam family (audience/source context)
  • Harimon Saxena (Regional Geography of Rajasthan; referenced for season classification)
  • Rajesh Yadav (mentioned during dust storm explanation context)
  • Praveen Kumar ji (addressed during audio/voice troubleshooting)
  • Deepak (addressed during document/process discussion)
  • “Guruji” (title used for the instructor; same primary speaker)

Original video