Open Global Glacier Model (OGGM) is an open source modelling framework for glaciers which can simulate the past and future mass-balance, volume and geometry of (almost) any glacier in the world. OGMM uses public data and includes tutorials and documentation.

The village of Topley is on the Canadian National railway, 285 miles west of Prince George and midway between Prince George and Prince Rupert. The area with which this report is immediately concerned stretches from Topley to the south, northwards about 12...