AlukweJonesTerah/Carbon-Stock-AGB-Estimation-Streamlit-App

Carbon estimation a cross kenya and african # Carbon Stock & AGB Estimation — Streamlit App A Streamlit port of the Google Earth Engine notebook for estimating above-ground biomass (AGB) carbon stock across selected Kenyan counties, using Sentinel-1/2, SRTM, WorldClim, PALSAR, soil, and canopy-height data as predictors, with Random Forest, Gradient Tree Boosting, and SVM regression models. ## What it does - Lets you pick which Kenyan counties (ADM1) to include in the study area - Supports ESA CCI AGB reference years 2010 and 2015–2022, with satellite predictor inputs composited through 2023 - Builds the full predictor stack on Earth Engine (spectral indices, radar, terrain, climate, soil, canopy height, land-surface temperature) - Samples training/testing points and trains RF, GTB, and SVM regressors - Shows an interactive map where you can switch between model outputs (carbon stock or AGB) — this replaces the notebook's `ipywidgets` dropdown - Compares RF vs. GTB with a difference map - Computes RMSE / MAE / R² and actual-vs-predicted scatter plots on the held-out test set - Computes per-county zonal statistics (mean/min/max/sum), downloadable as CSV - Shows variable importance for RF and GTB - Includes a beginner-friendly Environmental Guide chat powered by Gemini, with an optional local Ollama fallback for explaining maps, climate change, emissions, carbon credits, markets, and uncertainty ## 1. Prerequisites - Python 3.10+ - A Google account with **Earth Engine access** enabled (sign up free at earthengine.google.com) - A **Google Cloud project** registered for Earth Engine use (any project ID works, e.g. one created at console.cloud.google.com) - Optional: a Gemini API key for the Learning Guide, or a locally running Ollama instance for offline chat fallback ### Learning Guide key setup Copy `.streamlit/secrets.example.toml` to `.streamlit/secrets.toml`, then add your Gemini key. The real secrets file is ignored by Git. You can also paste a key into the guide settings for the curre …