Peter Herman and Karina Hoyer discuss beginner-friendly methods for scraping geospatial data from web maps, including techniques using R and Google Sheets.
Highlights π Introduction to web scraping for geospatial data presented by experts from NOC. π οΈ Overview of three scraping methods: HTML/XML queries, fetch requests, and undocumented APIs. π Emphasis on transforming web map data into tabular datasets for analysis. π Challenges of scraping dynamic web maps that load data upon user interaction. π R and Google Sheets showcased as tools for accessing and cleaning scraped data. π Explanation of difficulties with web maps requiring authentication for data access. π§© Tips for finding hidden data in developer tools and using XPath queries in Google Sheets.
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#WebScraping #GeospatialData #DataScience #RStats #Python #GoogleSheets #FOSS4GNA2024