Still on the topic: Know Your World, today’s discourse will be dwelling on climate.
What’s climate? Climate is simply the average weather condition of a place taken between periods spanning at least 35 to 40 years.
Picking from that, it is clear that the study of climate is not a child’s play; it involves a lot of diligent waiting.
Such climatic information can be applied by agricultural experts, scientists, geographical agencies etc. And whether these climatic data are employed by those mentioned or are not, it does not rule out how our daily living is influenced by them.
And you would appreciate the fact that we are talking about it because it has great effect on us as occupants of the planet- earth. The ecosystem of which we are units, is unchangeably affected by the interrelationship of climatic conditions or factors such as rainfall, temperature, air pressure, relative humidity, cloud cover, altitude, soil, snowfall, ocean current, etc.
Let us look at them one after the other.
Rainfall: Rain has become a factor helping our world regulate heat transfer or generation from the “mother of the solar or ecosystem”- the sun. And the way we can better understand rainfall knowing what happens in the water cycle. The water cycle contains a number of natural processes like evaporation, saturation, condensation, precipitation and the eventual rainfall.
Evaporation comes to effect by the action of sunlight and wind or breeze, which takes off water vapour from the surface of water bodies (streams, lakes, rivers, seas and oceans) into the atmosphere.
Saturation could be described as a situation whereby there is enough water vapour in the air, which gradually gathers to form cloud (condensation).
While precipitation is the change of state of water vapour into droplets of water called rain. Rain can be measured with a rain gauge.
Temperature is the degree of coldness or hotness of a substance, and such substance could be anything. The sun, of course, has a role to play here, since it is the source of heat. And on the other hand, the water bodies (mentioned earlier) and wind tend to reverse the heat process, giving us a normal temperature or an extreme condition, depending on the degree of exposure. Thermometer is used for measuring temperature.
Air Pressure may be defined as the resistance or force exerted by the air in motion. However it is an established knowledge that pressure increases with depth while it decreases with height. Hence, this is taking into consideration in aviation (flying of air planes) so as to have a smooth flight. Same is applicable in low depth for submarines and ocean divers.
Humidity is the amount of water vapour the air can hold at a particular point in time or place. However, relative humidity explains the comparison between two places or times, when such condition is considered.
Cloud Cover is how cloudy or otherwise the atmosphere is at a location or time. This also explains how much sunlight reaches the earth. On a sunny day for instance, the cloud tends to be light. Contrariwise, a gloomy day showcases bulky cloud. We should also remember the influence of cloud in rainmaking, as said earlier.
Altitude is the measure of height or upward distance into the atmosphere. Data about altitude helps pilots, mountain climbers, etc what height is suitable for flight or climbing. Similarly, it also affects other climatic factors like temperature, wind, pressure etc.
Snowfall is the drop of small ball of ice, a common phenomenon in temperate climate like in Europe, America, Australia and parts of Asia. Snow appears when the temperature drops below zero and residents of those climes have learnt to adapt to such condition by means of special clothing, providing warmth and perhaps, taking warm food recipes etc.
Ocean Current is the continuous directed movement of seawater, caused by natural forces like temperature, wind, salinity differences etc. It can influence the temperature of a region where it flows through. It could be warm or cold depending on its source and the course of flow.