Climate Class 9 Notes – Get All Chapters With Revision In Pdf & PPT

Are you searching for CBSE’s NCERT Climate Class 9 Notes? If yes, then you are in the right place. We provide notes for all the topics and subtopics of the social science climate chapter. You will also get short & detailed notes, questions and answers, pdf exercises, ppt presentations in both Hindi and English language. In this blog post, we have brought for you the best collection of geography chapter 4 climate important notes and tell you how to get them free.

Climate Class 9 Notes Chapter Wise

The climate chapter 4 of class 9 has seven main topics that are further divided into subtopics. You can see them in detail below.

Introduction

Climate is one of the most important natural elements of the Earth. It occurs everywhere on Earth and it is an essential part of the ecosystem. While climate change is often associated with damage to the environment, it is also vital for the existence of life on Earth. It helps regulate the temperature of the Earth, seasonality, and the water cycle.

Climate v/s Weather

As a Metrologist, it is important to understand the difference between the terms “climate” and “weather”. Weather is a word used to describe local conditions at a given time, while “climate” includes weather, but also encompasses long-term trends in employment or rising prices. For example, you may have noticed lately that temperatures outside seem more extreme than usual. This would indicate an unusually hot summer season whereas, if it had rained all day yesterday, you could deem it an unusually wet day for this area.

Climate Controls

Climatic Controls are factors that affect the climate of any given location. Differences in population density, changes to the surface caused by building construction, variations in solar radiation due to altitude, and large-scale ocean currents all can have significant effects on a region’s weather patterns over time. These are the primary variables that affect the Earth’s climate.

  • Latitude
  • Altitude
  • Pressure and Wind
  • Distance from the sea
  • Ocean Currents
  • Relief

Factors Affecting India’s Climate

India’s climate is affected by 3 primary factors, latitude, altitude, pressure, and surface winds. There are other factors that are less but these are the 3 primary factors that affect India’s climate. With the help of these factors, India’s climate becomes humid, hot, cold, dry, wet, tropical, subtropical, temperate, or arctic.

Indian Monsoon

The use of the Arabic word ‘mausim’ for the season gives us the origin of the term ‘monsoon’. This word means ‘season’ in Arabic, hence when translated to its English equivalent, you come up with season or period. Like when it rains seasonally in India where this wind is prominent. The monsoon wind is strong, a seasonal wind that occurs in southern and southeastern Asia. It works in cycles that range from May to September when it typically blows from west to east over India. The two main terms of the Indian monsoon are given below:

Seasons

India has marked four different seasons one can identify. The time of year tends to vary greatly, but it’s especially noticeable in the interior parts of this country. The coastal regions don’t feel as much change in temperature, though, and they do experience slight differences in rainfall depending on the season. Across India, there is an abundance of fascinating geography for tourists to see, including natural wonders like waterfalls, lakes, mountains (and rocky cliffs!), but most particularly the sandy beaches. The names of India’s 4 seasons are given below:

  • Summer
  • Winter
  • Rainy
  • Transition Season

Distribution of Rainfall

Measuring rainfall over such a massive area is quite difficult and the resultant statistics can be misleading. On one hand, we could look at Mumbai; annual rainfall here is about 2205 mm (about 95.5 inches) yet the amounts drop sharply eastward across India down to North of Delhi, where it’s barely half that.

Further east and it’s halved again and then halves again and then halves again! This makes for fast changes in land use near ecosystems with low rainfall. We’ve found you can work out an “average” rainfall per year by drawing a line from Mumbai more or less east/northeast up the country until it hits Gurgaon close to Delhi on its way southeast.

India receives a moderate amount of rainfall each year. Although generally rainy all year long, the weather may differ from region to region, allowing for a select few months to be quite dry. For example, Gujarat and Rajasthan have a strong chance of severe drought while the areas in the southern part of India experience heavy rainfall which could potentially lead to flooding during certain seasons. Moreover, since there are so many different types of climates in India, generalization may not always be possible!

Monsoon as a Unifying Bond

Most cold air in the northern hemisphere gathers by way of cyclones and gulf currents and is sent to warmer climatic regions such as southern India. This contributes to temperatures up to 3 degrees Celsius higher than those found closer to Earth’s poles, according to sources from leading universities.

Despite the Arabian Sea and the Bay of Bengal touching on three sides, this region remains moderate due to such mitigating factors as heat-reducing winds and increased heat absorption from water bodies. The lulling nature of the monsoons has a unifying effect on approximately one billion people, as they rely on it for their daily lives through agricultural activities and worship.

It only takes the arrival of the monsoon for life in India to run more smoothly and for clocks to align with society’s needs. The monsoon typically arrives between June and September and is an annual, heavy rain that affects South Asia and some parts of East Asia. During this time, hot air from the northern hemisphere pushes southward over India, which makes everything turn green! Farmers look out at their terraced lands with joy as all of their hard work paying off, while children their families celebrate with fun, annual events such as Holi (the festival of colors).

How to Download Social Science Geography Climate Class 9 Notes Chapter 4 in Hindi & English?

To get a complete picture of the Indian climate, you would have to look at the given details above. We have made the process easier by putting all the data including further details of topics with extra questions & answers, and revision notes in pdf form. You can now get these pdf notes that have all the information you need to understand about the climate.

In EnglishDownload
In Hindi Download

Conclusion

And with that, we end our blog post about the climate class 9 notes. We hope that you have gained some new knowledge of the Indian climate and that you can make the most of it in the future. If you have any questions or want some advice on this topic, please feel free to contact us. We would appreciate it very much! Thank you for reading, and have a great day!

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