OpenTopography LAS Validation Report for NC08

Point Inspection Summary

Total Area of Tiles (m²)	34,374,440.71
Sum of Area of Per-Tile as Determined by Scan (m²)	34,374,440.71
Total Number of Bytes on Disk	1,051,163,499
Total Number of Points as Reported in Headers	339,944,130
Total Number of Points as Determined by Scan	339,944,130
Mean Point Density as Reported in Headers (points/m²)	9.89
Mean Point Density as Determined by Scan (points/m²)	9.89
LAS Versions Processed	1.2 (34 files)
LAS File Types Processed	LAZ (34 files)
LAS File Signatures Processed	LASF (34 files)
File Breakdown by Source ID	0: 34 file(s)
File Breakdown by System ID	LAStools (c) by Martin Isenburg: 34 file(s)
File Breakdown by Generating Software ID	txt2las (version 120309): 34 file(s)
Point Breakdown by Return (return: header / actual)	1: 339,944,130 / 339,944,130 2: 0 / 0 3: 0 / 0 4: 0 / 0 5: 0 / 0
Point Breakdown by Pulse (pulse: actual)	1: 339,944,130 2: 0 3: 0 4: 0 5: 0
Point Breakdown by Classification (class: name: points)	1: Unclassified: 269,957,704 2: Ground: 69,986,426
File Breakdown by Coordinate Reference System	34 files of type [Projected Coordinate System] Horizontal CRS: NAD83 / UTM zone 18N [metre] Vertical CRS: NAVD88 height [metre]

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

Minimum and Maximum Attributes (min, max)

Time	0, 0
Return Number	1, 1
Return Count	1, 1
Flightline Edge	0, 0
Intensity	0, 0
Scan Direction Flag	0, 0
Scan Angle Rank	0, 0
Classification	1, 2
Point Source ID	0, 0
User Data	0, 0
Minimum RGB Colors	0, 0, 0
Maximum RGB Colors	0, 0, 0
File Creation Day	333, 333
File Creation Year	2011, 2011
Bounding Box of Tiles	(391000, 3971552.01), (397999.99, 3977999.99)
Z-Axis Values	-1.37, 137.5
Bounding Box of All Points	(391000, 3971552.01), (397999.99, 3977999.99)
Z-Axis Values	-1.37, 137.5

Summary of Warnings

There are no warnings to report.

LAS File Content

#	fileName	fcYear	fcDay	isCompressed	bytes	softwareID
1	ot_m_392000_3975000.laz	2011	333	true	52,165,460	txt2las (version 120309)
2	ot_m_394000_3972000.laz	2011	333	true	13,541,046	txt2las (version 120309)
3	ot_m_395000_3973000.laz	2011	333	true	14,594,022	txt2las (version 120309)
4	ot_m_394000_3977000.laz	2011	333	true	9,417,021	txt2las (version 120309)
5	ot_m_397000_3976000.laz	2011	333	true	41,571,403	txt2las (version 120309)
6	ot_m_394000_3976000.laz	2011	333	true	38,481,193	txt2las (version 120309)
7	ot_m_396000_3972000.laz	2011	333	true	35,317,024	txt2las (version 120309)
8	ot_m_393000_3977000.laz	2011	333	true	9,759,939	txt2las (version 120309)
9	ot_m_391000_3975000.laz	2011	333	true	34,628,279	txt2las (version 120309)
10	ot_m_394000_3973000.laz	2011	333	true	40,030,920	txt2las (version 120309)
11	ot_m_393000_3974000.laz	2011	333	true	51,383,266	txt2las (version 120309)
12	ot_m_392000_3973000.laz	2011	333	true	29,281,717	txt2las (version 120309)
13	ot_m_393000_3973000.laz	2011	333	true	59,098,410	txt2las (version 120309)
14	ot_m_393000_3972000.laz	2011	333	true	19,987,889	txt2las (version 120309)
15	ot_m_394000_3974000.laz	2011	333	true	43,781,791	txt2las (version 120309)
16	ot_m_396000_3976000.laz	2011	333	true	53,611,767	txt2las (version 120309)
17	ot_m_392000_3976000.laz	2011	333	true	28,599,755	txt2las (version 120309)
18	ot_m_395000_3977000.laz	2011	333	true	12,997,504	txt2las (version 120309)
19	ot_m_392000_3972000.laz	2011	333	true	9,194,554	txt2las (version 120309)
20	ot_m_393000_3976000.laz	2011	333	true	44,359,108	txt2las (version 120309)
21	ot_m_396000_3975000.laz	2011	333	true	45,485,857	txt2las (version 120309)
22	ot_m_396000_3977000.laz	2011	333	true	10,443,133	txt2las (version 120309)
23	ot_m_396000_3974000.laz	2011	333	true	23,069,429	txt2las (version 120309)
24	ot_m_396000_3973000.laz	2011	333	true	36,078,721	txt2las (version 120309)
25	ot_m_395000_3971000.laz	2011	333	true	3,466,896	txt2las (version 120309)
26	ot_m_393000_3975000.laz	2011	333	true	47,715,289	txt2las (version 120309)
27	ot_m_394000_3975000.laz	2011	333	true	40,396,398	txt2las (version 120309)
28	ot_m_391000_3974000.laz	2011	333	true	21,510,824	txt2las (version 120309)
29	ot_m_395000_3972000.laz	2011	333	true	18,603,397	txt2las (version 120309)
30	ot_m_395000_3976000.laz	2011	333	true	41,014,423	txt2las (version 120309)
31	ot_m_395000_3975000.laz	2011	333	true	38,170,548	txt2las (version 120309)
32	ot_m_392000_3974000.laz	2011	333	true	40,627,522	txt2las (version 120309)
33	ot_m_397000_3975000.laz	2011	333	true	29,797,659	txt2las (version 120309)
34	ot_m_395000_3974000.laz	2011	333	true	12,981,335	txt2las (version 120309)

Header Information

#	FileName	PointCount	minX	minY	minZ	maxX	maxY	maxZ	Area	Density
1	ot_m_392000_3975000.laz	14,964,784	391,980.01	3,974,980	-0.90	393,020	3,976,019.99	137.50	1,081,579.20	13.84
2	ot_m_394000_3972000.laz	7,241,479	393,980.01	3,971,980	-0.43	395,020	3,973,019.99	28.79	1,081,579.20	6.70
3	ot_m_395000_3973000.laz	8,163,157	394,980.01	3,972,980	-0.71	396,020	3,974,019.99	15.11	1,081,579.20	7.55
4	ot_m_394000_3977000.laz	5,045,565	393,980.01	3,976,980	-0.70	395,020	3,977,993.44	16.05	1,053,967.47	4.79
5	ot_m_397000_3976000.laz	11,595,049	396,980.01	3,975,980	-0.73	397,999.99	3,977,019.99	65.45	1,060,769	10.93
6	ot_m_394000_3976000.laz	12,282,857	393,980.01	3,975,980	-1.06	395,020	3,977,019.99	88.21	1,081,579.20	11.36
7	ot_m_396000_3972000.laz	10,079,633	395,980.01	3,971,980	-0.65	396,999.99	3,973,019.99	30.68	1,060,769	9.50
8	ot_m_393000_3977000.laz	4,575,910	392,980.01	3,976,980	-0.72	394,020	3,977,999.99	37.80	1,060,779.40	4.31
9	ot_m_391000_3975000.laz	10,258,079	391,000	3,974,980	-0.46	392,020	3,976,019.99	33.13	1,060,789.80	9.67
10	ot_m_394000_3973000.laz	13,091,791	393,980.01	3,972,980	-1.03	395,020	3,974,019.99	81.07	1,081,579.20	12.10
11	ot_m_393000_3974000.laz	15,011,054	392,980.01	3,973,980	-0.72	394,020	3,975,019.99	131.84	1,081,579.20	13.88
12	ot_m_392000_3973000.laz	10,159,481	391,980.01	3,972,980	-0.84	393,020	3,974,019.99	81.58	1,081,579.20	9.39
13	ot_m_393000_3973000.laz	16,787,117	392,980.01	3,972,980	-0.98	394,020	3,974,019.99	103.22	1,081,579.20	15.52
14	ot_m_393000_3972000.laz	6,613,507	392,980.01	3,972,260.19	-0.54	394,020	3,973,019.99	31.26	790,184.40	8.37
15	ot_m_394000_3974000.laz	13,191,959	393,980.01	3,973,980	-0.55	395,020	3,975,019.99	112.94	1,081,579.20	12.20
16	ot_m_396000_3976000.laz	15,131,509	395,980.01	3,975,980	-0.73	397,020	3,977,019.99	98.53	1,081,579.20	13.99
17	ot_m_392000_3976000.laz	9,263,648	391,980.01	3,975,980	-1.37	393,020	3,977,019.98	62.06	1,081,568.80	8.57
18	ot_m_395000_3977000.laz	4,984,794	394,980.01	3,976,980	-0.67	396,020	3,977,803.20	32.48	856,119.77	5.82
19	ot_m_392000_3972000.laz	2,891,924	392,004.87	3,972,530.08	-0.59	393,020	3,973,019.99	28.39	497,322.34	5.81
20	ot_m_393000_3976000.laz	13,569,494	392,980.01	3,975,980	-0.77	394,020	3,977,019.99	47.92	1,081,579.20	12.55
21	ot_m_396000_3975000.laz	13,870,945	395,980.01	3,974,980	-0.91	397,020	3,976,019.99	75.67	1,081,579.20	12.82
22	ot_m_396000_3977000.laz	3,080,225	395,980.01	3,976,980	-0.48	397,020	3,977,510.36	98.53	551,569.10	5.58
23	ot_m_396000_3974000.laz	8,978,138	395,980.01	3,973,980	-0.55	397,020	3,975,019.99	38.42	1,081,579.20	8.30
24	ot_m_396000_3973000.laz	10,845,306	395,980.01	3,972,980	-0.68	396,999.99	3,974,019.99	34.74	1,060,769	10.22
25	ot_m_395000_3971000.laz	1,519,675	394,980.01	3,971,552.01	-0.39	396,019.99	3,972,019.99	55.14	486,689.84	3.12
26	ot_m_393000_3975000.laz	14,164,646	392,980.01	3,974,980	-0.60	394,020	3,976,019.99	90.57	1,081,579.20	13.10
27	ot_m_394000_3975000.laz	12,578,007	393,980.01	3,974,980	-0.66	395,020	3,976,019.99	121.15	1,081,579.20	11.63
28	ot_m_391000_3974000.laz	6,553,058	391,000	3,973,980	-0.47	392,020	3,975,019.99	128.80	1,060,789.80	6.18
29	ot_m_395000_3972000.laz	8,954,963	394,980.01	3,971,980	-0.38	396,020	3,973,019.99	83.39	1,081,579.20	8.28
30	ot_m_395000_3976000.laz	12,673,581	394,980.01	3,975,980	-0.53	396,020	3,977,019.99	33.55	1,081,579.20	11.72
31	ot_m_395000_3975000.laz	12,544,634	394,980.01	3,974,980	-0.56	396,020	3,976,019.99	39.59	1,081,579.20	11.60
32	ot_m_392000_3974000.laz	12,497,600	391,980.01	3,973,980	-1.05	393,020	3,975,019.99	112.24	1,081,579.20	11.55
33	ot_m_397000_3975000.laz	9,155,279	396,980.01	3,974,980	-0.43	397,999.99	3,976,019.99	33.63	1,060,769	8.63
34	ot_m_395000_3974000.laz	7,625,282	394,980.01	3,973,980	-0.20	396,020	3,975,019.99	92.20	1,081,579.20	7.05

Results from File Scan

#	FileName	PointCount	minX	minY	minZ	maxX	maxY	maxZ	Area	Density
1	ot_m_392000_3975000.laz	14,964,784	391,980.01	3,974,980	-0.90	393,020	3,976,019.99	137.50	1,081,579.20	13.84
2	ot_m_394000_3972000.laz	7,241,479	393,980.01	3,971,980	-0.43	395,020	3,973,019.99	28.79	1,081,579.20	6.70
3	ot_m_395000_3973000.laz	8,163,157	394,980.01	3,972,980	-0.71	396,020	3,974,019.99	15.11	1,081,579.20	7.55
4	ot_m_394000_3977000.laz	5,045,565	393,980.01	3,976,980	-0.70	395,020	3,977,993.44	16.05	1,053,967.47	4.79
5	ot_m_397000_3976000.laz	11,595,049	396,980.01	3,975,980	-0.73	397,999.99	3,977,019.99	65.45	1,060,769	10.93
6	ot_m_394000_3976000.laz	12,282,857	393,980.01	3,975,980	-1.06	395,020	3,977,019.99	88.21	1,081,579.20	11.36
7	ot_m_396000_3972000.laz	10,079,633	395,980.01	3,971,980	-0.65	396,999.99	3,973,019.99	30.68	1,060,769	9.50
8	ot_m_393000_3977000.laz	4,575,910	392,980.01	3,976,980	-0.72	394,020	3,977,999.99	37.80	1,060,779.40	4.31
9	ot_m_391000_3975000.laz	10,258,079	391,000	3,974,980	-0.46	392,020	3,976,019.99	33.13	1,060,789.80	9.67
10	ot_m_394000_3973000.laz	13,091,791	393,980.01	3,972,980	-1.03	395,020	3,974,019.99	81.07	1,081,579.20	12.10
11	ot_m_393000_3974000.laz	15,011,054	392,980.01	3,973,980	-0.72	394,020	3,975,019.99	131.84	1,081,579.20	13.88
12	ot_m_392000_3973000.laz	10,159,481	391,980.01	3,972,980	-0.84	393,020	3,974,019.99	81.58	1,081,579.20	9.39
13	ot_m_393000_3973000.laz	16,787,117	392,980.01	3,972,980	-0.98	394,020	3,974,019.99	103.22	1,081,579.20	15.52
14	ot_m_393000_3972000.laz	6,613,507	392,980.01	3,972,260.19	-0.54	394,020	3,973,019.99	31.26	790,184.40	8.37
15	ot_m_394000_3974000.laz	13,191,959	393,980.01	3,973,980	-0.55	395,020	3,975,019.99	112.94	1,081,579.20	12.20
16	ot_m_396000_3976000.laz	15,131,509	395,980.01	3,975,980	-0.73	397,020	3,977,019.99	98.53	1,081,579.20	13.99
17	ot_m_392000_3976000.laz	9,263,648	391,980.01	3,975,980	-1.37	393,020	3,977,019.98	62.06	1,081,568.80	8.57
18	ot_m_395000_3977000.laz	4,984,794	394,980.01	3,976,980	-0.67	396,020	3,977,803.20	32.48	856,119.77	5.82
19	ot_m_392000_3972000.laz	2,891,924	392,004.87	3,972,530.08	-0.59	393,020	3,973,019.99	28.39	497,322.34	5.81
20	ot_m_393000_3976000.laz	13,569,494	392,980.01	3,975,980	-0.77	394,020	3,977,019.99	47.92	1,081,579.20	12.55
21	ot_m_396000_3975000.laz	13,870,945	395,980.01	3,974,980	-0.91	397,020	3,976,019.99	75.67	1,081,579.20	12.82
22	ot_m_396000_3977000.laz	3,080,225	395,980.01	3,976,980	-0.48	397,020	3,977,510.36	98.53	551,569.10	5.58
23	ot_m_396000_3974000.laz	8,978,138	395,980.01	3,973,980	-0.55	397,020	3,975,019.99	38.42	1,081,579.20	8.30
24	ot_m_396000_3973000.laz	10,845,306	395,980.01	3,972,980	-0.68	396,999.99	3,974,019.99	34.74	1,060,769	10.22
25	ot_m_395000_3971000.laz	1,519,675	394,980.01	3,971,552.01	-0.39	396,019.99	3,972,019.99	55.14	486,689.84	3.12
26	ot_m_393000_3975000.laz	14,164,646	392,980.01	3,974,980	-0.60	394,020	3,976,019.99	90.57	1,081,579.20	13.10
27	ot_m_394000_3975000.laz	12,578,007	393,980.01	3,974,980	-0.66	395,020	3,976,019.99	121.15	1,081,579.20	11.63
28	ot_m_391000_3974000.laz	6,553,058	391,000	3,973,980	-0.47	392,020	3,975,019.99	128.80	1,060,789.80	6.18
29	ot_m_395000_3972000.laz	8,954,963	394,980.01	3,971,980	-0.38	396,020	3,973,019.99	83.39	1,081,579.20	8.28
30	ot_m_395000_3976000.laz	12,673,581	394,980.01	3,975,980	-0.53	396,020	3,977,019.99	33.55	1,081,579.20	11.72
31	ot_m_395000_3975000.laz	12,544,634	394,980.01	3,974,980	-0.56	396,020	3,976,019.99	39.59	1,081,579.20	11.60
32	ot_m_392000_3974000.laz	12,497,600	391,980.01	3,973,980	-1.05	393,020	3,975,019.99	112.24	1,081,579.20	11.55
33	ot_m_397000_3975000.laz	9,155,279	396,980.01	3,974,980	-0.43	397,999.99	3,976,019.99	33.63	1,060,769	8.63
34	ot_m_395000_3974000.laz	7,625,282	394,980.01	3,973,980	-0.20	396,020	3,975,019.99	92.20	1,081,579.20	7.05

File Breakdown by Spatial Reference (Detailed)

34 files use the Projected Coordinate System 'NAD83 / UTM zone 18N', measured in 'metre'
These files use the vertical coordinate system 'NAVD88 height', measured in 'metre'
The full text of this spatial coordinate system is as follows:
<proj4>+proj=utm +zone=18 +datum=NAD83 +units=m +geoidgrids=g2003conus.gtx
,g2003alaska.gtx,g2003h01.gtx,g2003p01.gtx +vunits=m +no_defs </proj4><
prettywkt>PROJCS["NAD83 / UTM zone 18N",
     GEOGCS["NAD83",
         DATUM["North_American_Datum_1983",
             SPHEROID["GRS 1980",6378137,298.2572221010042,
                 AUTHORITY["EPSG","7019"]],
             AUTHORITY["EPSG","6269"]],
         PRIMEM["Greenwich",0],
         UNIT["degree",0.0174532925199433],
         AUTHORITY["EPSG","4269"]],
     PROJECTION["Transverse_Mercator"],
     PARAMETER["latitude_of_origin",0],
     PARAMETER["central_meridian",-75],
     PARAMETER["scale_factor",0.9996],
     PARAMETER["false_easting",500000],
     PARAMETER["false_northing",0],
     UNIT["metre",1,
         AUTHORITY["EPSG","9001"]],
     AUTHORITY["EPSG","26918"]]</prettywkt><wkt>PROJCS["NAD83 / UTM 
zone 18N",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6
378137,298.2572221010042,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRI
MEM["Greenwich",0],UNIT["degree",0.0174532925199433],AUTHORITY["EPSG","4269"]],P
ROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["ce
ntral_meridian",-75],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",
500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],A
UTHORITY["EPSG","26918"]]</wkt><compoundwkt>COMPD_CS["unknown",PROJC
S["NAD83 / UTM zone 18N",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHERO
ID["GRS 1980",6378137,298.2572221010042,AUTHORITY["EPSG","7019"]],AUTHORITY["EPS
G","6269"]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433],AUTHORITY["E
PSG","4269"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0
],PARAMETER["central_meridian",-75],PARAMETER["scale_factor",0.9996],PARAMETER["
false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["E
PSG","9001"]],AUTHORITY["EPSG","26918"]],VERT_CS["NAVD88 height",VERT_DATUM["Nor
th American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"],EXTENSION["PROJ4_
GRIDS","g2003conus.gtx,g2003alaska.gtx,g2003h01.gtx,g2003p01.gtx"]],AXIS["Up",UP
],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","5703"]]]</compou
ndwkt><prettycompoundwkt>COMPD_CS["unknown",
     PROJCS["NAD83 / UTM zone 18N",
         GEOGCS["NAD83",
             DATUM["North_American_Datum_1983",
                 SPHEROID["GRS 1980",6378137,298.2572221010042,
                     AUTHORITY["EPSG","7019"]],
                 AUTHORITY["EPSG","6269"]],
             PRIMEM["Greenwich",0],
             UNIT["degree",0.0174532925199433],
             AUTHORITY["EPSG","4269"]],
         PROJECTION["Transverse_Mercator"],
         PARAMETER["latitude_of_origin",0],
         PARAMETER["central_meridian",-75],
         PARAMETER["scale_factor",0.9996],
         PARAMETER["false_easting",500000],
         PARAMETER["false_northing",0],
         UNIT["metre",1,
             AUTHORITY["EPSG","9001"]],
         AUTHORITY["EPSG","26918"]],
     VERT_CS["NAVD88 height",
         VERT_DATUM["North American Vertical Datum 1988",2005,
             AUTHORITY["EPSG","5103"],
             EXTENSION["PROJ4_GRIDS","g2003conus.gtx,g2003alaska.gtx,g2003h01.gt
x,g2003p01.gtx"]],
         AXIS["Up",UP],
         UNIT["metre",1,
             AUTHORITY["EPSG","9001"]],
         AUTHORITY["EPSG","5703"]]]</prettycompoundwkt><gtiff>Geotif
f_Information:
    Version: 1
    Key_Revision: 1.0
    Tagged_Information:
       End_Of_Tags.
    Keyed_Information:
       GTModelTypeGeoKey (Short,1): ModelTypeProjected
       GTRasterTypeGeoKey (Short,1): RasterPixelIsArea
       GTCitationGeoKey (Ascii,31): "NAD83 / UTM zone 18N + VERT_CS"
       GeogCitationGeoKey (Ascii,6): "NAD83"
       GeogAngularUnitsGeoKey (Short,1): Angular_Degree
       ProjectedCSTypeGeoKey (Short,1): PCS_NAD83_UTM_zone_18N
       ProjLinearUnitsGeoKey (Short,1): Linear_Meter
       VerticalCSTypeGeoKey (Short,1): Unknown-5703
       VerticalCitationGeoKey (Ascii,14): "NAVD88 height"
       VerticalDatumGeoKey (Short,1): Unknown-5103
       VerticalUnitsGeoKey (Short,1): Linear_Meter
       End_Of_Keys.
    End_Of_Geotiff.
 </gtiff>

OpenTopography LAS Registration and Processing Report