Weeknotes: 7th September 2026

Last week Local developments This week I attempted to make a more nuanced version of my habitat map than I have done to date, and I'm glad I did, as it turned up some hidden problems with my data-processing that were obscured in the previous simpler versions. And better yet, both problems were evident a few minutes walk from my front door (possibly even visible from my office window if I leaned out in a way that wouldn't be approved by health and safety officials at the University). Before we get into details, some context. Until now, I've been generating my new habitat maps using broad habitat categories, referred to as "level 1" categories from the IUCN Habitat Classification Scheme. At level 1 you are just deciding if each pixel in the map is "forest" or "shrubland" or "wetland" and so forth. In total there's 18 level 1 categories. Each category is then broken down into more detail, the "level 2" categories, so you get "tropical forest dry", "tropical forest moist", "boreal…