Off-Nadir Delta

satellite

10 articles

Sentinel-2 vs. Landsat 9: A Practical Comparison for Earth Observation

A detailed comparison of Sentinel-2 and Landsat 9 — spectral bands, resolution, revisit, data access, and which sensor suits which application. Covers harmonization approaches for combined use.

2025-12-27 · 6 min read

How Do Satellites Actually Capture Images? Pushbroom, Whiskbroom, and SAR

A behind-the-scenes look at how Earth observation satellites acquire images. Understand pushbroom scanning, whiskbroom sensors, SAR synthetic aperture techniques, and why it matters for your data.

2025-12-01 · 7 min read

Satellite Data in Insurance: How Imagery Transforms Risk Assessment and Claims

How insurance companies use satellite imagery for property risk assessment, catastrophe modeling, crop insurance verification, and claims processing. Covers pre-event baselines, post-event damage assessment, and parametric insurance triggers.

2025-11-27 · 9 min read

Machine Learning for Satellite Image Classification: From Random Forest to Deep Learning

A practical guide to applying machine learning for satellite image classification — training data, feature engineering, algorithm selection, and accuracy assessment. Covers Random Forest, gradient boosting, CNNs, and when each approach is appropriate.

2025-11-19 · 9 min read

Spatial vs Temporal Resolution: The Fundamental Trade-Off in Satellite Imaging

Why you can't have both high spatial and high temporal resolution from a single satellite. Understand the trade-off, how constellations address it, and how to choose the right balance for your project.

2025-11-05 · 7 min read

Satellite Orbit Types: SSO, Polar & GEO Explained

Sun-synchronous (SSO), polar and geostationary orbits explained: altitude, inclination and repeat cycle, with the orbits Sentinel-1/2 and Landsat fly.

2025-10-28 · 8 min read

Electromagnetic Spectrum in Remote Sensing: Bands & Uses

Visible, NIR, red edge, SWIR, thermal and microwave bands in remote sensing: wavelength ranges, what each band reveals, and why atmospheric windows matter.

2025-10-22 · 8 min read

What Is Remote Sensing? A Plain-Language Guide for 2025

Remote sensing explained without the jargon. Learn how satellites collect data about Earth, the difference between active and passive sensors, and where this technology is actually used today.

2025-10-15 · 9 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

Precision Agriculture with Satellite Imagery: A Practical Guide

How satellite data transforms farming decisions — from variable-rate fertilization to irrigation scheduling. Covers which satellites to use, key vegetation indices, and real-world implementation challenges.

2025-06-12 · 8 min read