06/15/2026
DSI Scholar Spotlight β Dorothy Janick, Columbia Climate School graduate student
π Global population data is essential for researchers across a range of disciplines, from climate science to urban planning to public health. During her spring 2026 term as a DSI Scholar, Dorothy used her data science skills to support the Center for Integrated Earth System Information (CIESIN)'s fifth version of the Gridded Population of the World data product (GPWv5), which integrates 2020 census data from countries worldwide into crucial resource for public health, emergency response and other projects.
Using fuzzy matching and other tools, Janick also developed a new software tool to streamline the reconciliation of census data features with boundary shapefile information, which has historically been one of the most labor-intensive steps in updating the GPWv5. By supporting faster, more accurate integration of new data into the GPWv5 framework, Janick's innovations are helping ensure that on-the-ground organizations are getting the vital, up-to-date information they need.
Support for Janick's work on this project, which was carried out under the supervision of faculty mentors Greg Yetman and Linda Pistolesi, was provided by the DSI Scholars Program.
Learn more about the program: https://datascience.columbia.edu/research/programs/dsi-scholars/