Robin's Blog

Archive for the ‘Academic’ Category

van Heuklon ozone model now available on PyPI and conda

I was going to post this as one of my ‘previously unpublicised code’ posts, but that would be stretching the title a bit, as I have previously blogged about my implementation of the van Heuklon (1979) ozone model. This is just a brief update (in the spirit of my ‘previously unpublicised code’ posts) to say that […]

Orthogonal Distance Regression in Python

Linear regression is often used to estimate the relationship between two variables – basically by drawing the ‘line of best fit’ on a graph. The mathematical method that is used for this is known as Least Squares, and aims to minimise the sum of the squared error for each point. The key question here is how do […]

Previously Unpublicised Code: RTWIDL

When looking through my profile on Github recently, I realised that I had over fifty repositories – and a number of these weren’t really used much by me anymore, but probably contained useful code that no-one really knows about! So, I’m going to write a series of posts giving brief descriptions of the code and […]

Blue Marble: From Apollo 17 to DSCOVR, an EPIC journey

NASA image ID AS17-148-22727 is famous. Although you may not recognise the number, you will almost certainly recognise the image: This was taken by NASA Apollo astronauts on the 7th December 1972, while the Apollo 17 mission was on its way to the moon. It has become one of the most famous photographs ever taken, and has […]

How I became Dr Robin Wilson: Part 2

At the end of the previous post in this series, I was six months into my PhD and worrying that I really needed to come up with an overarching topic/framework/story/something into which all of the various bits of research that I was doing would fit. This part is the story of how I managed to […]

Interactive cloud frequency web map, with Google Earth Engine

Summary: I’ve developed an interactive cloud frequency map, available here. It may be particularly useful for satellite imaging researchers working out where they can acquire imagery easily. One of the major issues with optical satellite imaging is that you can’t see through clouds: so normally when its cloudy, you can’t get anything useful from your images. […]

How I became Dr Robin Wilson: Part 1

As many of you probably know, I’ve been working towards a PhD at the University of Southampton. This post is the brief story of my PhD, my graduation and my future plans. So, back in the dim and distant days of 2010, I started a PhD with the Institute for Complex Systems Simulation (ICSS) at […]

What’s new in Py6S

The last few months have seen a flurry of activity in Py6S – probably caused by procrastinating from working on my PhD thesis! Anyway, I thought it was about time that I summarised the various updates and new features which have been released, and gave a few more details on how to use them. These […]

How to: Fix weird ENVI startup file issues

This post is more a note to myself than anything else – but it might prove useful for someone sometime. In the dim and distant mists of time, I set up a startup file for ENVI which automatically loaded a specific image every time you opened ENVI. I have no idea why I did that […]