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README.md

Interactive SAR Visualization

This folder contains all the code and reports for Sentinel-1 SAR data analysis and visualization.

Files Overview

Core Analysis Functions

  • sar_analysis_functions.R - SAR data loading, metrics calculation, field statistics
  • sar_visualization.R - Interactive mapping functions using tmap
  • test_sar_analysis.R - Test script for validating SAR analysis functions

Reports & Notebooks

  • Interactive_SAR_Report.Rmd - Main interactive HTML report (working version)
  • SAR_exploration_report.Rmd - Alternative comprehensive report
  • SAR_quick_test.Rmd - Quick test report for debugging

Utility Scripts

  • generate_sar_report.R - Automated report generation script
  • simple_sar_test.R - Basic SAR data loading test

Data Sources

The SAR data is located in: ../../../python_scripts/data/aura/weekly_SAR_mosaic/

  • Contains 8 weeks of Sentinel-1 data (weeks 26-33, 2025)
  • VV, VH bands in linear scale, dB scale, and filtered versions
  • Field boundaries from: ../../../pivot.geojson

Generated Outputs

Reports are generated in: ../../../output/

  • Interactive_SAR_Report.html - Main interactive report
  • Other test outputs

Usage

To generate the main interactive report:

source("generate_sar_report.R")

Or run directly:

rmarkdown::render("Interactive_SAR_Report.Rmd", output_file = "../../../output/Interactive_SAR_Report.html")

Features

  • ✅ Interactive VV/VH backscatter maps
  • ✅ Radar Vegetation Index (RVI) calculation and mapping
  • ✅ Static RGB temporal composite
  • ✅ Change detection analysis
  • ✅ Time series plots
  • ✅ Field boundary integration with popups
  • 🔄 Interactive RGB composite (in progress)

Created: August 21, 2025 Author: Timon (with GitHub Copilot)