Technical
Articles

Getting Started with FAO WaPOR for Water Productivity Analysis

A practical guide to using FAO's WaPOR platform to extract and analyse water productivity data for irrigated agriculture — from downloading NDVI products to computing kg/m³ yields.

Sentinel-2 Crop Classification with SVM in Google Earth Engine

Step-by-step walkthrough of building a Support Vector Machine classifier for wheat mapping using Sentinel-2 time-series in Google Earth Engine — from image collection to accuracy assessment.

Accuracy Assessment for Land Cover Maps: The Olofsson (2014) Method

Most land cover accuracy assessments report inflated overall accuracy. The Olofsson et al. (2014) framework corrects for sampling bias and provides unbiased area estimates with confidence intervals — here's how to implement it.