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Summary of LiDAR data sets of KCSDW image library

This table outlines the file specifications and storage requirements for all lidar datasets in the King County Spatial Data Warehouse. It lists the data in the lowest tiling scheme first, followed by the twn-rge tiling scheme organization, and then by the Zone and KeyRegion levels. These values reflect only data for the lowland (western King County) portion of the entire project area, including the data received from the PSLC

LiDAR Dataset	7500 tile format	Avg 7500 tile size (mb) no-compression	Num. of 7500 tiles	Data Set size (gb)
Digital Ground Model (dgm)	ASCII (zip format)	58.4 (unzipped)	1774	20.5 (zipped)
Digital Ground Model (dgm006)	TIN	119.2	1774	126
Digital Ground Model (dgm006)	Grid	NA	NA	NA
Digital Ground Hillshade (ghs006)	TIF	1.5	1422	2.1
Digital Surface Model (dsm006)	ASCII (zip format)	139.8 (unzipped)	1415	58 (zipped)
Digital Surface Model (dsm006)	TIN	249.8	1415	357
Digital Surface Model (dsm006)	Grid	NA	NA	NA
Digital Surface Hillshade (shs006)	TIF	1.5	1269	1.7
Digital Last Model (dlm)	ASCII (zip format)	144.2 (unzipped)	1015	42.7 (zipped)
DGM 5-foot contours (ctr005)	DXF	30.9	1263	48.5
DGM 5-foot contours (ctr005)	SHP	NA	NA	NA
DGM Point Density (den)	SHP	NA	NA	NA
First-return intensity (fri)	ASCII (zipped)	150	1010	30
Last-return intensity (lri)	ASCII (zipped)	150	1010	30
First-return intensity (fri003)	TIF	5.2	1030	5.64
Last-return intensity (lri003)	TIF	5.2	1030	5.64
LiDAR Dataset	Twn-Rge tile format	Avg Twn-Rge tile size (mb)	Num. of Twn-Rge tiles	Data Set size (gb)
Digital Ground Model (dgm)	ASCII	NA	NA	NA
Digital Ground Model (dgm006)	TIN	NA	NA	NA
Digital Ground Model (dgm006)	Grid	118.1	87	10.4
Digital Ground Hillshade (ghs006)	SID	4.3	87	0.30
Digital Surface Model (dsm006)	ASCII	NA	NA	NA
Digital Surface Model (dsm006)	TIN	NA	NA	NA
Digital Surface Model (dsm006)	Grid	118.1	87	10.4
Digital Surface Hillshade (shs006)	SID	4.3	87	0.30
Digital Last Model (dlm)	ASCII	NA	NA	NA
DGM 5-foot contours (ctr005)	DXF	NA	NA	NA
DGM 5-foot contours (ctr005)	SHP	89.4	87	9.6
DGM Point Density (den)	SHP	72.9	87	9.1
First-return intensity (fri)	ASCII	NA	NA	NA
Last-return intensity (lri)	ASCII	NA	NA	NA
First-return intensity (fri003)	SID	15.3	75	1
Last-return intensity (lri003)	SID	15.3	75	1
LiDAR Dataset	Zone tile format	Avg Zone tile size (mb)	Zone tiles available	Data Set size (gb)
Digital Ground Model (dgm)	ASCII	NA	NA	NA
Digital Ground Model (dgm006)	TIN	NA	NA	NA
Digital Ground Model (dgm015)	Grid	110.0	NW,NE,SW,SE	0.437
Digital Ground Hillshade (ghs006)	SID	30.0	NW,NE,SW,SE	0.129
Digital Surface Model (dsm006)	ASCII	NA	NA	NA
Digital Surface Model (dsm006)	TIN	NA	NA	NA
Digital Surface Model (dsm015)	Grid	60.0	NW,NE,SW,SE	0.239
Digital Surface Hillshade (shs006)	SID	30.0	NW,NE,SW,SE	0,129
Digital Last Model (dlm)	ASCII	NA	NA	NA
DGM 5-foot contours (ctr005)	DXF	NA	NA	NA
DGM 10-foot contours (ctr010)	SHP	340.0	NW,NE,SW,SE	1.4
DGM 10-foot contours (ctr010)	ArcInfo Coverage	350.0	NW,NE,SW,SE	1.35
DGM Point Density (den)	SHP	NA	NA	NA
First-return intensity (fri)	ASCII	NA	NA	NA
Last-return intensity (lri)	ASCII	NA	NA	NA
First-return intensity (fri003)	SID	NA	NA	NA
Last-return intensity (lri003)	SID	NA	NA	NA
LiDAR Dataset	Region mosaic format	Approx. Compression Level	Resampled pixel size	Data Set size (gb)
Digital Ground Model (dgm)	ASCII	NA	NA	NA
Digital Ground Model (dgm006)	TIN	NA	NA	NA
Digital Ground Model (dgm006)	Grid	None	30 ft	0.052
Digital Ground Hillshade (ghs006)	JP2	30x	None	0.073
Digital Surface Model (dsm006)	ASCII	NA	NA	NA
Digital Surface Model (dsm006)	TIN	NA	NA	NA
Digital Surface Model (dsm006)	Grid	None	30 ft	0.059
Digital Surface Hillshade (shs006)	JP2	30x	None	0.025
Digital Last Model (dlm)	ASCII	NA	NA	NA
DGM 5-foot contours (ctr005)	DXF	NA	NA	NA
DGM 40-foot contours (ctr040)	SHP	None	40 ft	0.19
DGM 40-foot contours (ctr040)	ArcInfo Coverage	None	40 ft	0.18
DGM Point Density (den)	SHP	NA	NA	NA
First-return intensity (fri)	ASCII	NA	NA	NA
Last-return intensity (lri)	ASCII	NA	NA	NA
First-return intensity (fri003)	SID	30x	None	0.076
Last-return intensity (lri003)	SID	30x	None	0.076

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