Category Archive: GIS

EARL 2016 talk

I spoke on 14th September at the EARL (Effective Applications of the R Language) conference in London. This is event is concerned exclusively with the R programming language and it was the first… Continue reading

Mapping from GPS files

I’m just back from a 7 day cycle tour of Arran, Islay, Bute and the bits in between. I wanted to create a map of the route from the GPS log files of… Continue reading

Monthly patterns in Scottish snow (1946-2006)

There’s been a bit of a flurry on Twitter recently about April snow in the UK (see tweet below). My opinion is there’s often UK snow during April, but it happens to be… Continue reading

Getting started with NetCDF – reading CEH GEAR

Last year CEH released an interpolated precipitation dataset for the UK call GEAR. You can read about this dataset here, or view slides presented at the 2014 BHS Symposium here. In short; these… Continue reading

Rare snowmelt estimation (GB)

I read Hough and Hollis’ 1997 paper recently which uses Met Office synoptic stations to estimate a magnitude – recurrence relationship for snowmelt in the UK. i.e. how often do we get how… Continue reading

Cairngorms snow cover, 1954-1984

Neil Reid wrote a post this week about news from the Mar Lodge estate. On it he mentions the future of Derry Lodge. I’ve never been to Derry Lodge so seeing a photograph… Continue reading

QGIS user group – presentation

I spoke today at the second Scottish QGIS user group meeting. It was a diverse gaggle of practitioners including academics, council, quango and no doubt many more. Some really interesting talks went on,… Continue reading

MODIS: the many rastered beast, a how to guide

I’ve finally bitten the bullet and brought my data sources up to 2014 using snow cover data from the MODIS project. MODIS flies on two satellites, Aqua and Terra with the latter being… Continue reading

How to view and query elevation models and other raster data

Since I wrote my post on the OS Terrain 50 digital terrain model I’ve had a steady stream of internet searches sending people to my blog. I’ve also had a couple of questions… Continue reading

GB potential evapotranspiration dataset

A few weeks ago I wrote about a method to derive incoming solar radiation for different latitudes. This was to help a GIS Masters student who’s looking to derive an equation for propwet… Continue reading