OpenTopography - LAS Registration and Processing Report

OpenTopography LAS Registration and Processing Report

Dataset: USFS Gopher Hill Lidar, CA 2012

Short name: CA12_Gopher
opentopoID: OTLAS.112022.26910.2

Report generated on 2025-12-13 by OpenTopography Data Registration Service

Point Inspection Summary

Total Area of Tiles (m²)

2,933,824

Sum of Area of Convex Hulls as Determined by Scan (m²)

2,448,831.81

Total Number of Bytes on Disk

113,345,042

Total Number of Points as Reported in Headers

26,245,680

Total Number of Points as Determined by Scan

26,245,680

Mean Point Density as Reported in Headers (points/m²)

8.95

Mean Point Density as Determined by Scan (points/m²)

10.72

File Breakdown by LAS versions

1.2 (6 files)

File Breakdown by LAS file types

LAZ (6 files)

File Breakdown by Source IDs

0 (6 files)

File Breakdown by System IDs

WSI (6 files)

File Breakdown by Generating Software IDs

Las Monkey 1.4.6 (6 files)

File Breakdown by Point Data Record formats (Data Format ID)

1 (6 files)

File Breakdown by Global Encodings

[NULL] (6 files)

Point Breakdown by Returns (return: count)

1: 20,777,441
2: 4,647,801
3: 761,453
4: 58,985
5: 0

Point Breakdown by Classifications (class: name: points)

Class 1 - Unclassified	19,927,800
Class 2 - Ground	4,764,616
Class 7 - Low Point (low noise)	228
Class 11 - Road Surface	1,553,036

File Breakdown by Coordinate Reference Systems

6 files have Horizontal Coordinate System

PROJCS["NAD83 / UTM zone 10N",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-123],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","26910"]]

6 files have Vertical Coordinate System

VERT_CS["NAVD88 height",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5703"]]

Included Attributes

X positions	yes
Y positions	yes
Z positions	yes
Intensity	yes
Return Number	yes
Number of Returns	yes
Scan Direction Flag	yes
Edge of Flight Line	yes
Classification	yes
Scan Angle Rank	yes
User Data	yes
Point Source ID	yes
GPS Time	yes
RGB	no

Minimum and Maximum Attributes (min, max)

XYZ Positions	[667460.89, 4423615.17, 1069.69], [669521.54, 4425080.09, 1851.94]
Intensity	0, 255
Return Number	1, 4
Number of Returns	1, 4
Scan Direction Flag	0, 1
Edge of Flight Line	0, 0
Classification	1, 11
Scan Angle Rank	-21.0, 17.0
User Data	120, 138
Point Source ID	1247, 1256
GPS Time	168757.118, 169974.5142
RGB Colors	N/A
File Creation Day	59, 59
File Creation Year	2013, 2013

Summary of Warnings

There is no warning to report.

LAS File Content

#	File Name	Creation Year	Creation DoY	Is Compressed	Bytes	Software ID
1	39121H1217.laz	2013	59	true	6,945,418	Las Monkey 1.4.6
2	39121H1218.laz	2013	59	true	49,337,072	Las Monkey 1.4.6
3	39121H1219.laz	2013	59	true	24,009,005	Las Monkey 1.4.6
4	39121H1222.laz	2013	59	true	2,060,791	Las Monkey 1.4.6
5	39121H1223.laz	2013	59	true	15,731,906	Las Monkey 1.4.6
6	39121H1224.laz	2013	59	true	15,260,850	Las Monkey 1.4.6

Header Information

#	File Name	Point Count	minX	minY	minZ	maxX	maxY	maxZ	Area	Density
1	39121H1217.laz	1,539,248	667460.0	4424047.0	1089.0	667647.0	4425072.0	1834.0	159,092.68	9.68
2	39121H1218.laz	11,774,704	667625.0	4424051.0	1082.0	668715.0	4425080.0	1851.0	1,068,673.401	11.02
3	39121H1219.laz	5,311,782	668696.0	4424074.0	1078.0	669517.0	4424931.0	1851.0	499,323.086	10.64
4	39121H1222.laz	470,332	667473.0	4423827.0	1089.0	667652.0	4424051.0	1185.0	40,648.496	11.57
5	39121H1223.laz	3,599,062	667647.0	4423615.0	1080.0	668725.0	4424074.0	1772.0	328,491.83	10.96
6	39121H1224.laz	3,550,552	668715.0	4423618.0	1069.0	669521.0	4424092.0	1771.0	352,602.318	10.07

Results from File Scan

#	File Name	Point Count	minX	minY	minZ	maxX	maxY	maxZ	Area	Density
1	39121H1217.laz	1,539,248	667460.0	4424047.0	1089.0	667647.0	4425072.0	1834.0	159,092.68	9.68
2	39121H1218.laz	11,774,704	667625.0	4424051.0	1082.0	668715.0	4425080.0	1851.0	1,068,673.401	11.02
3	39121H1219.laz	5,311,782	668696.0	4424074.0	1078.0	669517.0	4424931.0	1851.0	499,323.086	10.64
4	39121H1222.laz	470,332	667473.0	4423827.0	1089.0	667652.0	4424051.0	1185.0	40,648.496	11.57
5	39121H1223.laz	3,599,062	667647.0	4423615.0	1080.0	668725.0	4424074.0	1772.0	328,491.83	10.96
6	39121H1224.laz	3,550,552	668715.0	4423618.0	1069.0	669521.0	4424092.0	1771.0	352,602.318	10.07

Spatial Reference (detailed in JSON format)

{

	"horizontal":"PROJCS[\"NAD83 \/ UTM zone 10N\",GEOGCS[\"NAD83\",DATUM[\"North_American_Datum_1983\",SPHEROID[\"GRS 1980\",6378137,298.257222101,AUTHORITY[\"EPSG\",\"7019\"]],AUTHORITY[\"EPSG\",\"6269\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4269\"]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"latitude_of_origin\",0],PARAMETER[\"central_meridian\",-123],PARAMETER[\"scale_factor\",0.9996],PARAMETER[\"false_easting\",500000],PARAMETER[\"false_northing\",0],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"Easting\",EAST],AXIS[\"Northing\",NORTH],AUTHORITY[\"EPSG\",\"26910\"]]",

	"wkt":"PROJCS[\"NAD83 \/ UTM zone 10N\",GEOGCS[\"NAD83\",DATUM[\"North_American_Datum_1983\",SPHEROID[\"GRS 1980\",6378137,298.257222101,AUTHORITY[\"EPSG\",\"7019\"]],AUTHORITY[\"EPSG\",\"6269\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4269\"]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"latitude_of_origin\",0],PARAMETER[\"central_meridian\",-123],PARAMETER[\"scale_factor\",0.9996],PARAMETER[\"false_easting\",500000],PARAMETER[\"false_northing\",0],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"Easting\",EAST],AXIS[\"Northing\",NORTH],AUTHORITY[\"EPSG\",\"26910\"]]",

	"isgeocentric":false,

	"prettywkt":"PROJCS[\"NAD83 \/ UTM zone 10N\",\n    GEOGCS[\"NAD83\",\n        DATUM[\"North_American_Datum_1983\",\n            SPHEROID[\"GRS 1980\",6378137,298.257222101,\n                AUTHORITY[\"EPSG\",\"7019\"]],\n            AUTHORITY[\"EPSG\",\"6269\"]],\n        PRIMEM[\"Greenwich\",0,\n            AUTHORITY[\"EPSG\",\"8901\"]],\n        UNIT[\"degree\",0.0174532925199433,\n            AUTHORITY[\"EPSG\",\"9122\"]],\n        AUTHORITY[\"EPSG\",\"4269\"]],\n    PROJECTION[\"Transverse_Mercator\"],\n    PARAMETER[\"latitude_of_origin\",0],\n    PARAMETER[\"central_meridian\",-123],\n    PARAMETER[\"scale_factor\",0.9996],\n    PARAMETER[\"false_easting\",500000],\n    PARAMETER[\"false_northing\",0],\n    UNIT[\"metre\",1,\n        AUTHORITY[\"EPSG\",\"9001\"]],\n    AXIS[\"Easting\",EAST],\n    AXIS[\"Northing\",NORTH],\n    AUTHORITY[\"EPSG\",\"26910\"]]",

	"proj4":"+proj=utm +zone=10 +datum=NAD83 +units=m +vunits=m +no_defs",

	"vertical":"VERT_CS[\"NAVD88 height\",VERT_DATUM[\"North American Vertical Datum 1988\",2005,AUTHORITY[\"EPSG\",\"5103\"]],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"Gravity-related height\",UP],AUTHORITY[\"EPSG\",\"5703\"]]",

	"prettycompoundwkt":"COMPD_CS[\"NAD83 \/ UTM zone 10N + NAVD88 height\",\n    PROJCS[\"NAD83 \/ UTM zone 10N\",\n        GEOGCS[\"NAD83\",\n            DATUM[\"North_American_Datum_1983\",\n                SPHEROID[\"GRS 1980\",6378137,298.257222101,\n                    AUTHORITY[\"EPSG\",\"7019\"]],\n                AUTHORITY[\"EPSG\",\"6269\"]],\n            PRIMEM[\"Greenwich\",0,\n                AUTHORITY[\"EPSG\",\"8901\"]],\n            UNIT[\"degree\",0.0174532925199433,\n                AUTHORITY[\"EPSG\",\"9122\"]],\n            AUTHORITY[\"EPSG\",\"4269\"]],\n        PROJECTION[\"Transverse_Mercator\"],\n        PARAMETER[\"latitude_of_origin\",0],\n        PARAMETER[\"central_meridian\",-123],\n        PARAMETER[\"scale_factor\",0.9996],\n        PARAMETER[\"false_easting\",500000],\n        PARAMETER[\"false_northing\",0],\n        UNIT[\"metre\",1,\n            AUTHORITY[\"EPSG\",\"9001\"]],\n        AXIS[\"Easting\",EAST],\n        AXIS[\"Northing\",NORTH],\n        AUTHORITY[\"EPSG\",\"26910\"]],\n    VERT_CS[\"NAVD88 height\",\n        VERT_DATUM[\"North American Vertical Datum 1988\",2005,\n            AUTHORITY[\"EPSG\",\"5103\"]],\n        UNIT[\"metre\",1,\n            AUTHORITY[\"EPSG\",\"9001\"]],\n        AXIS[\"Gravity-related height\",UP],\n        AUTHORITY[\"EPSG\",\"5703\"]]]",

	"units":{"horizontal":"metre","vertical":"metre"},

	"isgeographic":false,

	"compoundwkt":"COMPD_CS[\"NAD83 \/ UTM zone 10N + NAVD88 height\",PROJCS[\"NAD83 \/ UTM zone 10N\",GEOGCS[\"NAD83\",DATUM[\"North_American_Datum_1983\",SPHEROID[\"GRS 1980\",6378137,298.257222101,AUTHORITY[\"EPSG\",\"7019\"]],AUTHORITY[\"EPSG\",\"6269\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4269\"]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"latitude_of_origin\",0],PARAMETER[\"central_meridian\",-123],PARAMETER[\"scale_factor\",0.9996],PARAMETER[\"false_easting\",500000],PARAMETER[\"false_northing\",0],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"Easting\",EAST],AXIS[\"Northing\",NORTH],AUTHORITY[\"EPSG\",\"26910\"]],VERT_CS[\"NAVD88 height\",VERT_DATUM[\"North American Vertical Datum 1988\",2005,AUTHORITY[\"EPSG\",\"5103\"]],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"Gravity-related height\",UP],AUTHORITY[\"EPSG\",\"5703\"]]]"

}

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OpenTopography LAS Registration and Processing Report

Dataset: USFS Gopher Hill Lidar, CA 2012