Published: 09 Jul 2020 712 views
The Department of Geosciences and Natural Resource Management in Faculty of Science at the University of Copenhagen is inviting applications for a PhD position in assessing tree cover in African drylands using very high resolution satellite imagery and deep learning.
Project Description
Drylands cover large parts of the African land surface but their tree cover and carbon stocks are largely unknown. This is because a large proportion of dryland trees grow isolated without canopy closure and most scientific and non-scientific interest is devoted to forests, while the density and size of trees outside of forests is not well documented. However, these non-forest trees play a crucial role for biodiversity and provide ecosystem services such as carbon storage, food resources, livelihoods and shelter for humans and animals. The limited attention devoted to the quantification of dryland trees leads to an underrepresentation of non-forest trees in development strategies and climate/vegetation models, and the economic and ecological importance of non-forest trees is largely unknown at large scale.
The project works towards a wall-to-wall identification of trees in African drylands, and study their carbon stocks and socio-environmental determinants. Trees are not only assessed as canopy fraction of an area, but as individuals, allowing to identify not only their coverage but also their density, crown size, and key ecological services. We will apply very high resolution satellite data in conjunction with fully convolutional neural networks and field surveys. Moreover, passive microwave data are used to develop dynamic canopy cover and carbon density products.
Job description
The position is available for a 3-year period and your key tasks as a PhD student at SCIENCE are:
Role of the PhD: The PhD candidate will be part of a team and involved in data preparation, processing and analyses. While the scope of the project aims at the entire African continent. The PhD topic will focus mainly on the Sahel, but the study area can be extended. More specifically, the candidate will:
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Application Deadline | 20 Jul 2020 |
Type | PhD |
Sponsor | University of Copenhagen (UCPH) |
Gender | Men and Women |
For more details, visit UCPH website.