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ATMOSPHERIC PROCESSES

The atmosphere is generally divided into 6 layers, characterized by temperature differences:


Boundary layer -about 1-2km above the earth surface, and generally known as the lowest part of the troposphere.Troposphere- about 8-15km above earth surface; lowest depth (i.e. 8km) at the poles, and 15km at the equator.Stratosphere- level just above the troposphere where ozone layer is, because the oxygen at this level abosorbs a lot of solar radiation to form ozone.Mesosphere, Thermosphere and exosphere are not particulary my concern because it has ben observed that air pollution occurs mostly at the troposphere and stratosphere.
At the troposphere, pollutants tend to experience R-R-D (my acronym); that is, be washed out by Rain, removed by Reaction, or Deposited on the earth surface. On the other hand, at the stratosphere, pollutants tend to remain for longer periods, due to slow downward mixing, and their effects are noticed globally.

To better understand the dynamics of air pollution (the wa…

The Climate is Different...

Figures and % not included in this post.

Overview
Atmospheric carbon dioxide levels are significantly higher than 1990 levels. We have the power generation sector to blame for that. And the transportation sector. And the oil refineries. And our residences. And... every sector, it turns out.

What scientists know is that transportation and the power sector are the biggest offenders. This is because transportation depends on fossil fuels, which are hydrocarbons - carbon and hydrogen. When these hydrocarbons are combusted in our engines, carbon dioxide (CO2) is released. And CO2 is a greenhouse gas, which is making our climate at least 1.5 degrees warmer...

It therefore follows that we need to stop using fossil fuels.

Yes, imagine that.
Since an outright ban on fossil fuel use is not exactly easy, we need to think of something else, like modifying our engines to use less fossil fuels. Or we could think of fossil fuel alternatives, like biofuels, electricity-operated engines and so forth. But th…

Climate Change Control Technology

"The Intergovernmental Panel on Climate Change (IPCC) was set up jointly by the World Meteorological Organization and the United Nations Environment Programme to provide an authoritative international statement of scientific understanding of climate change. The IPCC’s periodic assessments of the causes, impacts and possible response strategies to climate change are the most comprehensive and up-to-date reports available on the subject, and form the standard reference for all concerned with climate change in academia,government and industry worldwide.

Key "policy-relevant" questions to keep track of:
How has the science of climate change advanced since the IPCC began?What is known about the natural and anthropogenic agents that contribute to climate change, and the underlying processes that are involved?How has climate been observed to change during the period of instrumental measurements?What is known of palaeoclimatic changes, before the instrumental era, over time scale…

From Chemical Engineering to Energy and Environment

I will be focusing on the course I am about to commence, entitled Energy and Environment. Find below the exciting details, courtesy of the University of Leeds:

The impacts of climate change are becoming visible through out the world, with receding glaciers, changing weather patterns, coastlines and ecosystems. The links between climate change and poverty and human health are a significant future concern. Gas and oil prices have recently been very unstable, and whilst world energy demand carries on increasing, it is likely that production will peak during the next decade. Urban populations are also continuing to grow, bringing with them waste disposal problems, traffic congestion and greater power, heating and refrigeration needs, as well as fire and explosion hazards.

As a response to this we are now seeing changing energy policies worldwide, geared towards encouraging energy autonomy by developing renewable energies and recycling initiatives as well as implementing low carbon technolog…

Don't Make the Same Mistakes I Made

Blog Disclaimer (sort of): This is not a blog about PTDF, but about expanding my knowledge.

1. As soon as you know you are interested in sitting for the PTDF MSc overseas exam, start reading. And in your non-jackometer time, watch some Who Wants to Be a Millionaire, Weakest Link, Zain Africa Challenge, etcetera. It really helps. If Mr. Frank Edoho asks Mr. Ojilile, "where is the highest mountain located?" try to find out where the lowest mountain is located as well (if there is such a thing).

2. As soon as you have heard that you were shortlisted for the MSc program, jump for joy, thank God severally, call your people, celebrate--- and by all means, start looking for your admission yourself! (I really cannot overemphasise this point enough, but let me stop here).

3. If there are any requirements your prospective school needs you to fulfil, do it- eg. if they want you to post your transcript or reference letters, do it sharply. if they are asking for proof of funding, let PTDF …

My Friday 13th...

...was not actually a Friday.. I just wrote it for effect lol. It wasn't a bad luck day. Not at all. It started out 'just there', till I decided to check my mail around 1pm-- to discover that I had been shortlisted for the ptdf MSc. scholarship. Thank You Lord!

"What I Wish PTDF Asked Me..."

As in, I so read off-point! But God dey sha.

I'll post the questions the PTDF asked in their first internet-based MSc Overseas Scholarship exam on March 20, but probably not tonight... soon and very soon sha. Watch this space.

UPDATED

The questions were in two parts, as opposed to the previous 3 sections- General Knowledge, Discipline-based Essay to test your English and Discipline-Based questions proper.

This time it was General Knowledge and Discipline-Based objectives; 50 questions in 30 mins, and 35 questions in about 90 minutes respectively.

General Knowledge Questions:
(Answers mine, so feel free to verify. I have also written the questions in my own words, no vex).



1. Who invented Facebook?
Just kidding.

1. How many legs does a butterfly have?(And I am not kidding now. Mumu question, esp. as I couldnt answer it-- the fear of NEGATIVE MARKING is the beginning of obj wisdom).

2. The Mediterranean sea is part of which sea?
Atlantic, Pacific, Indian...
My Ans: Atlantic

3. What does API stan…

Sannu!

Image
MIA with good reason: preparing for PTDF exams. I have just disovered a good site for free text downloads: scribd.com

I'll be back after all the exams and courses with the continuation of Thermodynamics.

PS: Sooo this is what FOUR DAYS of UNINTERRUPTED LIGHT feels like! Hm!