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Remotely sensed glaciological measurements can be expensive, often involvinga trade-off between resolution, scale, and frequency. We report on a casestudy in which two low-cost techniques were used to generate digitalelevation models and orthomosaics of an Arctic glacier in consecutiveablation seasons. In the first aerial survey we used an unmanned aerialvehicle and acquired images autonomously. The following year we tookadvantage of the helicopter used for site access, and were able to acquireimages manually, for little additional helicopter time. We present apreliminary assessment of accuracy and apply these data to measure glacierthinning and motion

Brief Communication: Low-cost, on-demand aerial photogrammetry for glaciological measurement