Detecting altimetric changes in Arctic landscapes using historical aerial imagery-derived digital elevation models (hDEMs): Case study of the Black Mountain Alluvial Fan Complex, Canada

In the rapidly changing Arctic, reconstructing landscapes over the last 50 years is essential to understanding impacts due to climate-induced geomorphic change. While region-wide warming became measurable in the 1980s, spatially extensive high-latitude elevation datasets extend temporally back to the 2000s. Historical aerial imagery archives provide datasets of high-resolution imagery from the mid- to late- 1900s with stereo-capability that can be harnessed to create historical digital elevation models, or hDEMs. Reconstructing a surface from the past is challenging due to a lack of ground control from that era to constrain it in space, especially at high latitudes. The main purpose of this study was to determine if an hDEM could be used to detect altimetric change in an area of poor ground control. We developed an hDEM from historical aerial imagery over the Black Mountain alluvial fan complex in NT, Canada, and used satellite imagery-derived ground control points to constrain the mode..., , # Data from: Detecting altimetric changes in Arctic landscapes using historical aerial imagery-derived digital elevation models (hDEMs): Case study of the Black Mountain Alluvial Fan Complex, Canada

Dataset DOI: [10.5061/dryad.mw6m90691](https://doi.org/10.5061/dryad.mw6m90691)

## Description of the data and file structure

This data is referenced in \"Detecting Altimetric Changes in Arctic Landscapes Using Historical Aerial Imagery-Derived Digital Elevation Models (hDEMs): Case Study of the Black Mountain Alluvial Fan Complex, Canada\" in the journal *Photogrammetric Engineering and Remote Sensing* by Emma Menio, Hank Theiss, and Jackson Cothren.

## Datasets

### National Air Photo Library Aerial Film Frames

The digitized photographs used in this study are sourced from NAPL sequence 3351138 Survey Roll A26752 and have an acquisition date of 8 August 1985. The photographs were captured on 9-inch by 9-inch black and white film using a Wild RC10 camera and UAG 6007 lens with a 6-inch (1...,