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King County GIS Center
King Street Center
201 S. Jackson St.
Suite 706
Seattle, WA 98104
giscenter@kingcounty.gov

47.59909 N
122.33136 W

47° 35' 56.72" N
122° 19' 52.90" W
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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.

7500 tiling scheme (lowest tiling scheme)
Twn-Rng tiling scheme
Zone tiling scheme
KeyRegion mosaic levels

For information on KCGIS tiling schemes and naming conventions, visit our KCGIS Raster Data Naming Conventions page.

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