Our Partners Directorate of Overseas Surveys Partnership

Directorate of Overseas Surveys Partnership

The Directorate of Overseas Surveys (DOS) Collection was identified as a potential goldmine of historic climate change data by an international team from Stockholm University and the University of California (Berkeley). With their collaboration, the DOS Project was grant-funded by the Bank of Sweden Tercentenary Foundation, through which we launched a pioneering automated digitisation programme.  

Saving the Archive

The DOS Collection comprises almost 1.7 million images, taken throughout British colonial territories between 1946 and 1994. This photography provides a unique historical perspective and is in effect a 'Doomsday Book' of the Commonwealth. The 3D stereoscopic aerial photography in the DOS Collection records the changing urban and rural landscapes of large parts of the Commonwealth throughout the second half of the twentieth century. 

In 2012, the National Collection of Aerial Photography (NCAP) saved the DOS Collection from certain destruction following the sudden closure of its previous host museum, quickly moving the photographs and related documents to Edinburgh. Three years later NCAP was approached by Andreas Madestam and Anna Tompsett of Stockholm University, who expressed an interest in working with NCAP to unlock the Collection's enormous potential for climate change research. It took another three years before funding for the prospective project was found, from the Bank of Sweden Tercentenary Foundation, at which time Solomon Hsiang at the University of California (Berkeley) also became involved.

An international partnership

This collaboration led to the DOS Project officially starting in 2021, a major partnership between Historic Environment Scotland (HES), the Department of Economics at Stockholm University and the Department of Agricultural & Resource Economics at the University of California (Berkeley). In a little over two years, the entire DOS Collection - nearly 1.7 million images - was digitised thanks to the innovative use of specially adapted robots.

Following the digitisation by NCAP, our international partners are digitally stitching together the images to create merged, georeferenced mosaics that resemble modern satellite imagery. The metamorphosis of these black and white paper prints into digital mosaics will transform the availability of historical data that records global environmental change over the past century. The data will increase understanding of the causes and consequences of environmental change - including biodiversity loss, deforestation and climate change.

Stockholm University - external  University of California (Berkeley) - external

IN THIS SECTION

The logo of the Edinburgh International Data Facility.

Edinburgh International Data Facility

Our research collaboration with the EIDF facilitates access to high-performance computing infrastructure, enabling the development of advanced algorithms and creation of analytics-ready datasets.

The logo of the Irish Military Archives.

Irish Defence Forces

NCAP has been working with the Irish Defence Forces to digitise tens of thousands of aerial photographic images and associated records held by the Irish Military Archives.

The logo of the Medmenham Collection.

The Medmenham Collection

With significant elements of the NCAP collection originating from RAF Medmenham, our relationship with the Medmenham Collection remains a valuable one.

The logo of the National Archives and Records Administration.

National Archives and Records Administration

In 2016, NCAP began a partnership with NARA to copy its extensive holdings of aerial photography, with a particular focus on images from the Second World War.

Logo of the National Library & Archives UAE.

National Library and Archives of the United Arab Emirates

NCAP has been working with the National Library and Archives of the United Arab Emirates (UAE) to digitise tens of thousands of aerial photographic images of the UAE.

The logo of the Royal Commission on the Ancient and Historical Monuments of Wales.

Royal Commission on the Ancient and Historical Monuments of Wales

NCAP has been working with the Royal Commission on the Ancient and Historical Monuments of Wales to digitise tens of thousands of aerial photographic images held in The National Monuments Record of Wales.