Wednesday, May 4, 2011

Weather Observation and Its Forecasts

By Ager Sovson


If you like spending your time outdoors, you are probably sensitive to the changes in your environment. It was not like what it was used to be. There are times even in the wee hours of the morning you feel hot already and sweating. There are also days when it rain hard then in the afternoon it will be the exact opposite. There are many contributing factors as to why we are experiencing extreme weather changes.

The large difference in atmospheric pressures and drop in the temperature are just some examples of the transformations that we have felt. Whatever weather observation that we feel it will affect us either directly or indirectly. Many people take these alterations for granted because they do not see the difference right away. The only time they will notice it, is when there is massive flooding or numerous occurrences of hurricanes and storms. Small changes in the weather do have an effect on everything.

Advisories and reminders are often heard on television or read in newspapers to warn us and to help us prepare. There are an up surge in the use of hurricane windows or window designed to withstand strong rain and wind. Shutters are also one of the most sought after protection not only for our houses but also for our family. Acquisition of medical kits are also one way of preparing and protecting ourselves. The knowledge and interests of people about this sort of phenomenon had increased since we seen and experience it.

The destruction it had caused and the lives it destroyed are all learning lessons to us, that we should not take for granted what our nature can do and that includes the climate. Many of us depend on the forecasts to give us information as to what to expect in the coming days. Though these forecasts are not accurate it has proven itself to be useful and dependable a lot of times already. The question remains though as to how they come up with their predictions?

The experts use different techniques and sometimes they combine them to come up with a plausible guess. The cloud reading had been done since the time of our ancestors. They look at the clouds to give them an idea to what is to come. The thicker the clouds the higher possibilities of having rain, if the sky is clear then it is fair condition to expect. The Barometer that we use in our science school subject has been around for years too and we are still using it. People have availed of this tool since the 19th century; it measures the pressure in the atmosphere. It there is a drop in the pressure then rain will come.

The assembling of different forecasts to be able to come up with one is called Ensemble and is also considered to be one of the techniques in foretelling the climate. They will have to analyze the data and check any errors or if there is a lacking in numbers of surveys to really make sure that whatever information they will release in public will be closer to accurate.




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