I recently did some of Coursera’s data science modules as way to sharpen my skills in big data. The modules use R to process the data and do the statistical analysis. My goal is to use this knowledge, I will try to analyze Tobago’s precipitation and temperature for the period 1980 to 2015. The data can be found at the Trinidad & Tobago Meteorological Service. This analysis will be in two parts: Rainfall trend and Temperature trends.
For the past few (10?) years Tobago have been experiencing rather hash drought like conditions. Each year, the Water and Sewerage Authority (WASA) has implemented its Water Supply and Conservation plans in order to ensure a supply. Some of these included water rationing, a ban on watering plants or washing cars with a hose.
As a farmer, I felt the effects of the heat and lack of rain fall during the wet/rainy season. I had to use pipe borne (via a tank) water almost everyday. Fortunately, I was able to harvest my crops though I believe the yield would have been higher if the rain fall was “normal”.
The main reason WASA has given for the short fall in water is that rain fall has been steadily declining over the years. While the public believe WASA did not plan for increase usage by the population. So which is true? No planning for increased usage or decrease rainfall over time. Hey, maybe both!. WASA has not given any “numbers” to back up their assertion. While there has been a marked increase in usage due to a higher number of visitors to the island especially during July/Aug months.
So is WASA’s reason for the short fall true?