Client requested for a series of ppt on environment & changes in biodiversity. this ppt is the first & very basic for developing an understanding of Climate & Weather .

1. AN UNDERSTANDING OF CLIMATE
AND CLIMATE CHANGE
Part I : Definitions

2. Setting the Agenda
• Objective & Purpose
• Weather & Climate
• Atmosphere
• Weather – Climate-Climate System
• Climate Change : Definition
• Discussions & Feedback

3. Watch this Video for a moment
.• Video

4. What was the Video all about ?

5. Basics :
If this is happening frequently & repeatedly at a place for
last many decades and it’s a regular phenomenon then it is
referred as CLIMATE of the area .
If this is a non –frequent occurrence or for a short period or
it is not the regular phenomenon of the area then it is
referred as the WEATHER of the area.

6. Time Frame
Climate
of the
Day
Weather of the Day

7. Understanding
When we talk for a short
period – WEATHER
When we are discussing
for a very long period
may be 20-30 -40 years
or more - CLIMATE

8. Question: What are we talking
about ?
The Conditions of
ATMOSPHERE
Atmosphere is the
envelop of Gases
Surrounding the Earth

9. Atmosphere : Specific Characteristics
TEMP.
Humidity
Wind
Velocity
Pressure
Visibility
Cloudiness

10. Revisiting our Definition :
Weather and Climate
WEATHER :
It is the combination of all the specific
characteristics of the atmosphere in a region.
Day to day state of the atmosphere in a region and
its short term variation ( days to week )

11. Revisiting our Definition :
Weather and Climate
CLIMATE:
It is WEATHER of a region averaged over a long
time period ( 25-30) yrs.

12. Revisiting our Definition :
Weather and Climate
Weather
Statistics
Averaged over a long time period Climate
METROLOGY
CLIMATOLOGY
We Say :
• Cloudy Weather
• Cold Waves
• Snowy
• Scorching Heat
We Say :
• Desert Climate
• Polar Climate
• Monsoon Climate
• Tropical Climate

13. Are these things so Simple
Weather and Climate
Weather is a day to day state of Atmosphere
That is
State of the Characteristics of the atmosphere
Now What is Climate ?
To Understand this aspect we have to first build understanding of
Climate System ?

14. Climate System
Components of Climate System

15. Climate System
Weather  Climate  Climate System

16. Climate System
When we talk about climate …
 The Context is large
( 5 Components )
 Area is wide.
(Region)
 Studies are deep
( 30 yrs or more...)

17. Climate System
All Natural or Man Made activities within the Components
of Climate System of a region affects largely or partially the
Weather or Climatic conditions of the area.
Changes in components of Climate system

18. Climate System
Sample Factors affecting Changes in components of
Climate system
Geosphere
Volcanic Eruptions Land use Pattern Earth quake

19. Climate System
Sample Factors affecting Changes in components of
Climate system
Biosphere
Fossil Fuel Burning Nuclear Emission

20. Climate System
Sample Factors affecting Changes in components of
Climate system
Hydrosphere
Oil Spills
SewageWaste dumping

21. Climate System
Sample Factors affecting Changes in components of
Climate system
Cryosphere
Melting of ice caps Receding glacier

22. THANK YOU