About the project

About the Köppen-Geiger Climate Map

koppenmap.com is a static, browser-based map for exploring Köppen-Geiger climate zones across historical periods and future CMIP6/SSP scenarios. The goal is to make the climate classification layers easy to inspect by place without hiding the map behind an article or a heavy application framework.

What the App Does

The app lets you switch between historical and projected climate layers, toggle climate classes, change the map opacity, choose a basemap, and click locations to see a plain-English class explanation.

Why It Exists

Köppen-Geiger climate maps are often shared as static images. This site keeps the map itself as the main experience while adding enough context to understand periods, scenarios, classes, source data, and limitations.

Source Summary

Climate classification layers are based on Beck et al. (2023), High-resolution (1 km) Köppen-Geiger maps for 1901-2099 based on constrained CMIP6 projections . The app ships web-ready layers for 1901-2020 historical periods and 2041-2099 CMIP6/SSP projections.

Project Code

The code is maintained at github.com/dropbop/koppen. The app is built with Vite, TypeScript, OpenLayers, and static assets; it does not require a backend for normal browsing.