UPSC Prelims Bits For Today July 13, 2022 | Daily Important Current Affairs For UPSC Prelims

UPSC Prelims Bits For Today” is every day published in the morning between 11:00 AM to 12:00 Noon and contains selective current affairs articles. ”UPSC Prelims Bits For Today” covers various topics from UPSC Prelims Syllabus and is very helpful and time managing for UPSC Aspirants. The framing of this daily current affairs compilation article is easy to read and understandable also.

In the ”UPSC Prelims Bits For Todayarticle, we focus on UPSC Preliminary exam-oriented current affairs covering various sections from leading National Newspapers, PIB, and other various official sources.


What are the UN Sustainability Goals?


  • In 2015 the United Nations agreed on a set of ‘sustainable development’ goals that are focused on ending poverty around the world, protecting the planet and ensuring a new prosperity for everyone.
  • The 17 Sustainable Development Goals or the ‘Global Goals’ include over 169 targets that ensure that all of the countries of the world work to protect the planet.


What is weather?


  • Weather describes the day-to-day condition of the atmosphere. It might be sunny, hot, windy or cloudy, raining or snowing.
  • The weather takes into account the temperature, precipitation, humidity and atmospheric pressure of the part of atmosphere (air) closest to the surface of the Earth.
  • The weather is constantly changing as temperature and humidity change in the atmosphere. Landmasses, such as the British Isles, experience constantly changing weather conditions.
  • The science of monitoring and studying the atmosphere and predicting its weather and climate is called meteorology. People who study the weather and climate are known as meteorologists.


Long Period Average (LPA) of Rainfall


  • LPA of rainfall is the rainfall recorded over a particular region for a given interval (like month or season) average over a long period like 30years, 50-years etc.
  • It acts as a benchmark while forecasting the quantitative rainfall for that region for a specific month or season. For example, LPA of south west monsoon rainfall over Kerala for the months June, July, August and September are 556mm, 659mm, 427mm and 252mm respectively.
  • The current LPA of all India southwest monsoon rainfall based on the average rainfall over the period 1961 -2010 is 880.6mm.


Impact Of Climate Change On Rainfall Activity


  • The temperature of the earth is increasing rapidly due to anthropogenic greenhouse gas emissions.
  • Thermodynamically, warm air holds more moisture as compare the dry air.
  • According to the Clausius-Clapeyron equation, the capacity of air to hold moisture increases by 7% for each degree of warming.
  • Studies indicate that, in a changing climate, heavy rainfall events are expected to rise due to the abundance of the moisture due to warming.


What is Cloud Burst?


  • If 10 cm rainfall is received at a station in one hour, the rain event is termed as cloud burst. It is very difficult to predict the cloud bursts due to its very small scale in space and time.
  • To monitor or nowcast (forecasting few hours lead time) the cloud burst, we need to have dense radar network over the cloud burst-prone areas or one need to have a very high-resolution weather forecasting models to resolve the scale of cloud burst.
  • Cloud bursts do occur at plains, however, mountainous regions are more prone to cloud bursts due to orography.


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