agriculture
11 articlesSeasonal Crop Monitoring with NDVI Time Series: From Planting to Harvest
NDVI time series from Sentinel-2 reveals the complete crop growth cycle — planting date, peak canopy, stress events, and harvest timing. Learn how to set up crop monitoring, identify the key phenological stages, and detect anomalies that signal crop failure or irrigation problems.
2026-04-05 · 12 min read
Estimating Soil Moisture with SAR: Why Radar Sees What Optical Can't
How SAR backscatter responds to soil moisture content, the physical basis for radar-based soil moisture estimation, and practical challenges including vegetation cover and surface roughness effects.
2026-02-08 · 8 min read
Satellite Imagery for Agriculture: What Actually Works at Field Scale
Satellite data is transforming precision agriculture, but not every sensor or index is useful for every crop. This guide covers what works, what doesn't, and how to build a practical field monitoring workflow.
2025-12-14 · 7 min read
Understanding NDVI: How to Monitor Vegetation Health from Space
A comprehensive guide to NDVI (Normalized Difference Vegetation Index) — what it measures, how to interpret values, and practical applications for agriculture, forestry, and environmental monitoring.
2025-12-03 · 5 min read
Early Detection of Crop Stress from Satellite Imagery: Before the Damage Is Done
How satellite data detects crop stress from drought, nutrient deficiency, pests, and disease before visible symptoms appear. Covers spectral indicators, temporal anomaly detection, and the window between detection and yield loss.
2025-07-23 · 11 min read
Drought Monitoring with Satellite Data: Indices, Methods, and Early Warning
How satellite-derived vegetation, soil moisture, and precipitation indices track drought conditions from space. Covers VCI, TCI, SPI, and combined drought indices used by operational monitoring systems.
2025-07-11 · 8 min read
Mapping Soil Properties from Satellite Imagery: What's Possible and What's Not
Which soil properties satellites can estimate, the spectral signatures involved, and the practical accuracy of remote sensing for soil organic carbon, texture, moisture, and mineralogy mapping.
2025-07-05 · 8 min read
Crop Yield Estimation from Satellite Data: Methods, Accuracy, and Limitations
How satellite vegetation indices relate to crop yield, the statistical and process-based approaches to yield forecasting, and realistic accuracy expectations for different crops and regions.
2025-06-29 · 8 min read
Irrigation Monitoring from Space: Tracking Water Use Across Farmland
How satellite imagery detects irrigated vs rainfed agriculture, monitors irrigation scheduling, and supports water resource management. Covers optical, thermal, and SAR approaches.
2025-06-24 · 6 min read
Crop Type Mapping with Satellite Imagery: Telling Wheat from Corn from Space
How multi-temporal satellite data enables crop type identification and mapping at field scale. Covers phenological signatures, classification approaches, and accuracy expectations for different crop types.
2025-06-18 · 9 min read
EVI vs NDVI: When NDVI Isn't Enough for Vegetation Analysis
NDVI is the most popular vegetation index, but it saturates over dense canopy and is sensitive to soil background. EVI and SAVI solve these problems. This guide explains when to use each index.
2025-06-03 · 6 min read