Atmospheric and Climate Science postgraduate personal statement example

Personal statement example

Most mornings in autumn I cycle past a reservoir on my way to the bike shop where I work, and on still days after a clear night it is covered in a low, flat fog that has usually burnt off by ten. During my final year I began noting when it appeared and when it did not, and I realised I could explain much of it with what I had learnt about radiative cooling and humidity, but not why it sometimes formed on nights that looked, on paper, unpromising. That gap between a tidy textbook explanation and a messy local observation is what has drawn me towards postgraduate study in atmospheric and climate science.

My degree is in physics with mathematics, where I gained a 2:1. The modules I enjoyed most were thermodynamics, fluid dynamics and a second-year numerical methods course in which we wrote finite-difference solvers in Python. The fluids course introduced the idea of non-dimensional numbers, and working out why the Rossby number tells you when the Earth's rotation matters was the first time a piece of mathematics changed how I looked at a weather map.

For my dissertation I compared hourly wind speeds from a weather station run by a local secondary school with ERA5 reanalysis data for the nearest grid points over two years. The school's anemometer sat on a roof beside a sports hall, so I expected disagreement, but the pattern was more interesting than simple error. Agreement was reasonable in strong westerly flow and poor on calm nights, when the station recorded near-zero winds that the reanalysis smoothed over. I spent a long time cleaning the station record, flagging gaps and an obvious period when the sensor had stuck, and learning to handle NetCDF files with xarray. My conclusion was modest: a single urban station cannot validate a reanalysis, but it showed me how much local boundary-layer behaviour a coarse grid cannot represent. My supervisor described the data handling as careful, and I was pleased that the school asked for a short plain-English summary to use with their geography classes.

Alongside my studies I have worked part-time in a bicycle repair shop for three years, and now work there four days a week. The work is practical rather than academic, but it has made me patient with diagnosis: a creaking bottom bracket can turn out to be a loose pedal, and you check the simple things before taking anything apart. I also handle much of the shop's booking system, which means keeping track of promises made to customers and telling them honestly when a job will run late.

Outside work I sing bass in a community choir, which has taught me to listen closely to people around me rather than just my own part, and on Thursdays I drive my grandmother to her appointments and do her weekly shop. Neither has anything to do with clouds, but both have given my weeks a structure that kept me organised through my final year.

To prepare for a more demanding course I have been working through Wallace and Hobbs' Atmospheric Science, particularly the chapters on atmospheric thermodynamics and the boundary layer, and I have started running a simple single-column radiation exercise to understand how changing humidity alters night-time cooling. I am aware my background is stronger in physics and coding than in chemistry, so I am revising aerosol and atmospheric chemistry basics before I begin.

At postgraduate level I would like to deepen my understanding of boundary-layer processes and how they are represented in weather and climate models, and to learn the observational methods that sit behind datasets I have so far only downloaded. I bring a solid quantitative grounding, experience of working carefully with imperfect data and the habit of asking why a local observation does not fit. I would welcome the chance to turn the reservoir fog from a commuting curiosity into a properly posed scientific question.