Satellite-ground spatiotemporal matching with parallax correction

Knowledge graph centered on Satellite-ground spatiotemporal matching with parallax correction with 15 nodes and 28 connections. Top connected: Gunnison, Ascension Island, Southern Great Plains, Atmospheric Radiation Measurement Program, Sierras de Córdoba.

Method synopsis

Rigorous matching protocol for satellite and ground-based observations accounting for viewing geometry effects. Applies parallax correction to compensate for apparent cloud displacement and uses strict temporal and spatial coincidence criteria.

Synthesized from method descriptions across 1 paper using this protocol.

Procedure as described in the canonical source

Steps below were extracted from the paper that introduces this protocol — Evaluation of cloud height, optical thickness, and phase retrievals from the CHROMA algorithm applied to Sentinel-3 OLCI data (2025), Atmospheric Measurement Techniques. Implementations in other papers (listed below) may differ.

1. Spatiotemporal matching and parallax correction
   Matched satellite and ground observations using strict criteria of within 2.5 km spatial distance and ±2.5 minutes temporal window. Applied parallax correction to account for apparent cloud horizontal location shift from satellite viewing geometry, calculating total horizontal shift using cloud top height and viewing zenith angle, then splitting into longitudinal and latitudinal components.
   Quantities: 2.5 km spatial tolerance, ±2.5 minutes temporal tolerance, viewing zenith angles up to nadirDuration: Applied for each potential satellite-ground matchupConditions: All weather conditions, day and night overpasses
   Equipment: Geometric calculations, Satellite viewing geometry data

Typical Equipment

• Geometric calculations
• Satellite viewing geometry data

Output Measurements

• matched observation pairs

Papers Using This Protocol (1)

Places Where Used