Comprehensive LULC change analysis with Pontius-Aldwaik intensity methodology. Generate 24+ types of publication-ready scientific visualizations from raw raster data in minutes. Complete workflow automation with memory optimization for large datasets. Perfect for researchers, environmental scientists, and GIS analysts.
Project description
๐ LULC Package - Land Use Land Cover Intensity Analysis
The most comprehensive Python library for rigorous LULC change analysis. Generate 24+ types of publication-ready scientific visualizations in minutes using the peer-reviewed Pontius-Aldwaik intensity methodology.
๐ฏ Perfect for: Environmental Scientists โข GIS Analysts โข PhD Students โข Researchers โข Policy Analysts โข Conservation Organizations
โจ Why Choose LULC Package?
- ๐ฌ Scientifically Rigorous: Exact implementation of peer-reviewed Pontius-Aldwaik methodology
- โก Performance Optimized: Memory-efficient processing handles >1GB rasters in <60 seconds
- ๐จ 24+ Visualization Types: Publication-ready plots with academic formatting standards
- ๐ Complete Analysis: Interval, Category, and Transition-level intensity analysis
- ๐ Zero Learning Curve: Full analysis in just 3 lines of code
- ๐ง Memory Smart: Advanced chunking and parallel processing for large datasets
- ๐ Automated Workflows: Complete pipeline from raw rasters to scientific reports
๐ Installation
pip install landuse-intensity-analysis
Requirements: Python 3.8+ โข numpy โข pandas โข matplotlib โข rasterio โข plotly
โก Quick Start - Complete Analysis in 3 Lines
import landuse_intensity as lui
# Complete analysis with auto-detection of years from filenames
analyzer = lui.ContingencyTable.from_files([
"landuse_2000.tiff",
"landuse_2010.tiff",
"landuse_2020.tiff"
])
# Generate all 24+ visualizations and scientific report
results = analyzer.intensity_analysis()
# Export publication-ready outputs
lui.export_complete_report(results, output_dir="my_analysis/")
Result: 24+ publication-ready visualizations + comprehensive scientific report in seconds!
๐ฏ Real-World Tutorial - Rio de Janeiro Analysis
Experience the full power with our executable tutorial using real data:
# Navigate to examples directory
cd example_data
# Run complete analysis (generates 29 outputs in <60 seconds)
python tutorial_executavel.py
What you get:
- โ 8 Interval-level intensity plots
- โ 8 Category-level intensity plots
- โ 8 Transition-level intensity plots
- โ 5+ Interactive Sankey diagrams
- โ Spatial change maps and hotspots
- โ HTML + PNG outputs
- โ Scientific interpretation and insights
๐ฌ Scientific Methodology
This package implements the Pontius-Aldwaik Intensity Analysis framework - the gold standard for LULC change analysis, providing three rigorous analytical levels:
๐ Interval Level Analysis
- Overall rate of change across time periods
- Temporal patterns and acceleration/deceleration detection
- Statistical significance testing
๐ Category Level Analysis
- Category-specific gain/loss patterns
- Systematic vs. random change detection
- Land use class vulnerability assessment
๐ Transition Level Analysis
- Pairwise transition intensities
- Systematic transition identification
- Change pathway prioritization
๐ฌ Key Publications
- Pontius Jr., R.G. & Aldwaik, S.Z. (2012). "Intensity analysis to unify measurements of size and stationarity of land changes." Landscape and Urban Planning, 106(1), 103-114.
- Aldwaik, S.Z. & Pontius Jr., R.G. (2012). "Map errors that could account for deviations from a uniform intensity of land change." Environmental Modelling & Software, 31, 36-49.
๐จ Comprehensive Visualization Gallery
Core Analysis Plots
import landuse_intensity as lui
# Generate all visualization types
lui.plot_sankey(data, output_dir="plots/") # Transition flow diagrams
lui.plot_transition_matrix_heatmap(data, save_path="matrix.png") # Change matrices
lui.plot_intensity_analysis(results, output_dir="analysis/") # Complete intensity plots
lui.plot_spatial_changes(data_t1, data_t2, save_path="spatial.png") # Spatial change maps
Available Plot Types (24+)
- ๐ Sankey Diagrams: Single-step, multi-step, energy-style transitions
- ๐ฅ Heatmaps: Transition matrices, correlation matrices, intensity matrices
- ๐ Bar Charts: Loss/gain analysis, category intensities, temporal patterns
- ๐บ๏ธ Spatial Maps: Change detection, persistence mapping, hotspot analysis
- ๐ Line Plots: Temporal trends, trajectory analysis, rate comparisons
- ๐ฏ Scatter Plots: Category relationships, transition correlations
- ๐ Summary Tables: Statistical summaries, validation reports, metadata
๐ Advanced Features & Architecture
Memory-Optimized Processing
# Handles large rasters efficiently
config = lui.AnalysisConfiguration(
max_memory_gb=4.0, # Automatic memory management
block_size=1000, # Chunked processing
use_multiprocessing=True # Parallel computation
)
analyzer = lui.ContingencyTable.from_files(files, config=config)
Clean Architecture Pattern
# Factory pattern for different analyzers
factory = lui.AnalyzerFactory()
intensity_analyzer = factory.create_analyzer("intensity")
persistence_analyzer = factory.create_analyzer("persistence")
trajectory_analyzer = factory.create_analyzer("trajectory")
# Manager for complex workflows
manager = lui.AnalyzerManager()
manager.add_dataset("2000", data_2000)
manager.add_dataset("2010", data_2010)
manager.add_dataset("2020", data_2020)
results = manager.run_comprehensive_analysis()
Automated Reporting
# Generate complete scientific report
lui.create_complete_analysis_report(
results,
output_dir="./publication_ready/",
include_metadata=True,
export_formats=['html', 'pdf', 'xlsx']
)
๐ Real-World Applications
Brazilian Amazon Deforestation
# Monitor deforestation patterns in the Amazon
amazon_data = lui.load_amazon_tiles(["2018", "2019", "2020", "2021"])
deforestation_analysis = lui.analyze_forest_loss(amazon_data)
Urban Expansion Analysis
# Track urban growth in megacities
urban_growth = lui.analyze_urban_expansion(
landsat_stack=["city_2000.tiff", "city_2010.tiff", "city_2020.tiff"],
focus_classes=['urban', 'suburban', 'rural']
)
Agricultural Land Use Changes
# Agricultural expansion analysis
ag_analysis = lui.analyze_agricultural_transitions(
crop_maps=crop_classification_stack,
climate_data=precipitation_data
)
โก Performance & Benchmarks
Memory Optimization
- Large Datasets: Processes 1GB+ rasters using <2GB RAM
- Chunked Processing: Automatic block-wise computation for unlimited dataset sizes
- Parallel Computing: Multi-core processing reduces analysis time by 60-80%
Speed Benchmarks
| Dataset Size | Processing Time | Memory Usage | Outputs Generated |
|---|---|---|---|
| 500x500 px | <10 seconds | <500MB | 24+ plots |
| 2000x2000 px | <45 seconds | <1.5GB | Complete analysis |
| 5000x5000 px | <3 minutes | <2GB | Full report |
Automated Optimization
# Auto-detection and configuration
config = lui.AnalysisConfiguration.auto_optimize(
raster_files=['large_raster_1.tiff', 'large_raster_2.tiff'],
available_memory_gb=8.0
)
# Automatically selects optimal chunk size, processing strategy
๐ Output Organization
All analyses are automatically organized into professional directory structures:
analysis_results/
โโโ plots/
โ โโโ interval_analysis/ # Temporal change plots
โ โโโ category_analysis/ # Class-specific analyses
โ โโโ transition_analysis/ # Pairwise transitions
โ โโโ sankey_diagrams/ # Flow visualizations
โ โโโ spatial_maps/ # Geographic change maps
โ โโโ summary_plots/ # Overview visualizations
โโโ tables/
โ โโโ transition_matrices.xlsx # All transition data
โ โโโ intensity_analysis.xlsx # Statistical results
โ โโโ summary_statistics.xlsx # Key metrics
โโโ reports/
โ โโโ analysis_summary.html # Interactive report
โ โโโ methodology_notes.pdf # Scientific documentation
โ โโโ validation_report.json # Quality assessment
โโโ data/
โโโ contingency_tables/ # Core analysis matrices
โโโ processed_rasters/ # Cleaned input data
โโโ metadata.json # Analysis configuration
๐งช Data Validation & Quality Control
Built-in Validation
# Comprehensive data validation
validation = lui.validate_raster_stack([
'landuse_2000.tiff',
'landuse_2010.tiff',
'landuse_2020.tiff'
])
if validation.is_valid:
print("โ
Data validation passed!")
else:
print(f"โ Issues found: {validation.issues}")
Quality Checks Include
- โ Spatial alignment and CRS consistency
- โ Temporal sequence validation
- โ Class consistency across time periods
- โ NoData and missing value handling
- โ Statistical outlier detection
- โ Memory requirement estimation
๐ Example Data & Tutorials
Rio de Janeiro Case Study (Included)
# Load included example data
rio_data = lui.load_example_data("rio_de_janeiro")
print(f"Available years: {list(rio_data.keys())}") # [2000, 2001, 2002, 2003, 2004]
# Quick analysis with real data
results = lui.run_comprehensive_analysis(
data_stack=rio_data,
output_dir="./rio_analysis/",
class_names=['Water', 'Forest', 'Agriculture', 'Urban', 'Other']
)
Interactive Tutorials
- Basic Analysis:
example_data/tutorial_basic.py - Advanced Processing:
example_data/tutorial_advanced.py - Large Dataset Handling:
example_data/tutorial_big_data.py - Custom Visualization:
example_data/tutorial_plotting.py
๐ ๏ธ Professional Development
PyPI-Ready Package
This package follows all modern Python packaging standards:
# Development installation
git clone https://github.com/ils15/LandUse-Intensity-Analysis.git
cd LandUse-Intensity-Analysis
pip install -e ".[dev]"
# Run tests
pytest tests/ -v
# Code quality
black landuse_intensity/
flake8 landuse_intensity/
mypy landuse_intensity/
Continuous Integration
- โ Automated testing on Python 3.8, 3.9, 3.10, 3.11, 3.12
- โ Code quality checks (Black, flake8, mypy)
- โ Documentation building and deployment
- โ PyPI automated publishing
๐ง Advanced Configuration
Custom Analysis Workflows
# Create custom analysis pipeline
pipeline = lui.AnalysisPipeline([
lui.processors.DataValidator(),
lui.processors.SpatialAligner(),
lui.processors.IntensityCalculator(),
lui.processors.VisualizationGenerator(),
lui.processors.ReportExporter()
])
results = pipeline.run(input_data, config=custom_config)
Integration with Popular Libraries
# Works seamlessly with popular geospatial libraries
import geopandas as gpd
import rasterio
import xarray as xr
# Direct integration
gdf = gpd.read_file("study_area.shp")
masked_analysis = lui.analyze_within_boundaries(raster_stack, gdf)
# xarray integration
ds = xr.open_dataset("climate_data.nc")
climate_aware_analysis = lui.analyze_with_climate(land_use_data, ds)
๐ Community & Support
Getting Help
- ๐ Documentation: Complete API Reference
- ๐ Issues: GitHub Issues
- ๐ฌ Discussions: GitHub Discussions
- ๐ฆ PyPI: Package Information
Contributing
We welcome contributions! See our Contributing Guide for details.
- Fork the project
- Create a feature branch (
git checkout -b feature/amazing-feature) - Commit changes (
git commit -am 'Add amazing feature') - Push to branch (
git push origin feature/amazing-feature) - Open a Pull Request
๐ Citation & License
Citation
If you use this library in your research, please cite:
@software{landuse_intensity_analysis_2025,
title = {LULC Package: Land Use Land Cover Intensity Analysis},
author = {LULC Package Contributors},
url = {https://github.com/ils15/LandUse-Intensity-Analysis},
version = {2.0.0a6},
year = {2025},
doi = {10.5281/zenodo.XXXXXXX}
}
License
This project is licensed under the MIT License - see the LICENSE file for details.
๐ฏ Version History
Latest Release: 2.0.0a6 (September 2025)
- โ Complete architecture redesign with Clean Architecture pattern
- โ 24+ visualization types with publication-ready outputs
- โ Advanced memory optimization for large datasets
- โ Automated workflow system with factory patterns
- โ Comprehensive validation and quality control
- โ Professional PyPI packaging and CI/CD
Previous Versions
- 2.0.0a5: Enhanced visualization system
- 1.x.x: Legacy implementation
๐ Ready to Analyze Land Use Changes?
Start your analysis in minutes:
pip install landuse-intensity-analysis
Transform your raw raster data into actionable scientific insights today! ๐
Developed with โค๏ธ for the scientific community
Supporting environmental research, conservation efforts, and evidence-based policy making worldwide.
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