Lidar data coverage for the state of Texas.
Directory Structure Analysis
Status Legend
[LPC+META]: Collection has both lpc and metadata directories (standard structure)
[LPC only]: Collection has only lpc directory (missing metadata)
[MISSING]: Collection has neither lpc nor metadata directories
Summary Statistics
Total Collections Examined: 83
Collections with LPC Directory: 81
Collections with Metadata Directory: 77
Collections with Both LPC and Metadata: 77
Collections with LPC only: 4
Collections with Metadata only: 0
Collections missing both directories: 2
File Counts
Total LAS Files: 11
Total LAZ Files: 369,787
Total XML Files: 114,724
Total Point Cloud Files: 369,798
Total All Files in LPC: 402,635
Storage
Total Size of All LPC Directories: 25,986.37 GB
Average Files per Collection: 4,970
Average Size per Collection: 320.81 GB
Top 5 Largest Collections (by file count)
usgs-2018-70cm-texas-west-central: 50,901 files
usgs-2018-70cm-texas-panhandle: 39,908 files
usgs-2019-70cm-west-texas: 38,543 files
usgs-2019-70cm-hurricane: 35,280 files
usgs-2018-70cm-south-texas: 26,260 files
Key Observations
97.6% of collections (81/83) have the expected lpc directory
92.8% of collections (77/83) have the expected metadata directory
92.8% of collections (77/83) have both directories (complete structure)
Only 4 collections are missing metadata directories
Only 2 collections are completely missing both directories
Collection Analysis Summary
Resolution Distribution
50cm resolution: 23 collections (highest resolution category)
70cm resolution: 19 collections (most common USGS resolution)
1m resolution: 8 collections
60-61cm resolution: 4 collections
Other resolutions: 29 collections (35cm, 120cm, 140cm, 150cm, 170cm)
Temporal Coverage
2018-2019: Peak collection period (25 collections)
2011-2017: Major expansion period (35 collections)
2001-2010: Early collections (16 collections)
2020-2022: Recent collections (7 collections)
Size Categories
Large Collections (>500GB): 15 collections
Medium Collections (50-500GB): 37 collections
Small Collections (<50GB): 31 collections
Geographic Coverage
Collections cover major Texas regions including coastal areas, river basins, metropolitan areas, and specialized zones like dams and reservoirs, providing comprehensive LiDAR coverage for the state.
