Data Downloads

GIS Coverages 
Preview  File Size Metadata  Letter Size Map  Compressed Maps 
Tidal Maps
1993 High Tide (MHHW)  
452KB metadata 1993 PDF 1993 ZIP
1993 Low Tide (MLLW) 
187 KB  metadata 1993 PDF 1993 ZIP
1993 20' contour  73 KB  metadata 1993 PDF 1993 ZIP
1993 Channels and Basins 
32 KB  metadata 1993 PDF 1993 ZIP
1993 Bathymetry  187 KB  metadata 1993 PDF 1993 ZIP
1993 Marshes  427 KB  metadata 1993 PDF 1993 ZIP
1944 High Tide  455 KB  metadata 1944 PDF 1944 ZIP
1944 Low Tide  488 KB  metadata 1944 PDF 1944 ZIP
1944 Channels  9 KB  metadata 1944 PDF 1944 ZIP
1944 Bathymetry  948 KB  metadata 1944 PDF 1944 ZIP
1944 Marshes  187 KB  metadata 1944 PDF 1944 ZIP
1912 High Tide  323 KB  metadata 1912 PDF 1912 ZIP
1912 Low Tide  144 KB  metadata 1912 PDF 1912 ZIP
1912 Bathymetry  948 KB  metadata 1912 PDF 1912 ZIP
1912 Marsh  1,209 KB  metadata 1912 PDF 1912 ZIP
High Tide Fluctuation 
1,209 KB  metadata Fluctuation PDF Fluctuation ZIP
Low Tide Fluctuation 
1,209 KB  metadata Fluctuation PDF Fluctuation ZIP
Marsh Fluctuation 
1,209 KB  metadata Wetland PDF Wetland ZIP
Historical Findings
Land Use 
522 KB metadata Findings PDF Findings ZIP
Infrastructure
1912 Roads 
140 KB  metadata
USGS Roads  140 KB  metadata
Mgmt. Plan Boundary  177 KB  metadata
Sphere of Interest  15 KB  metadata
Wateruse  202 KB  metadata
Major Owners  645 KB  metadata
Parcels  5,014 KB  metadata
Management Area 
55 KB  metadata
Physical Characteristics
1980 Sediments 
423 KB metadata Sediments PDF Sediments ZIP
2000 Geology  6,594 KB  metadata
Water Quality
Water Quality 
28 KB metadata Water PDF Water ZIP
Biological Characteristics
Shellfish Reserves 
28 KB metadata
Clam Beds  139 KB  metadata
Bird Habitat  54 KB  metadata
Bird Localities  4 KB  metadata
Seals  5 KB  metadata
Habitat  1.16 MB  metadata
Eel Grass 1997  49 MB  metadata
Historic Eel Grass  90 KB  metadata
N W I 
656 KB  metadata

nwi mapcode

LIDAR Data
Coast Strip LIDAR 
28 KB metadata LIDAR ZIP
CA Geology Series- Continental Margin
 Data formatSize (unzipped)Size (zipped)
Habitat Classification92 47
CA Geology Series Project  47
Habitat code / Geologic unit keys   
Eel River Basin Survey Data Footprint
 Data formatSize (zipped)Size (unzipped)
Sidescan Sonar Image (Industry data)GeoTiff22359
Habitat ClassificationShapefile, polygon11
Humboldt Bay, North
 Data formatSize (zipped)Size (unzipped)
Shaded Relief Image, grayscale (1m)GeoTiff484
Shaded Relief Image,color (1m)GeoTiff1437
Sidescan Sonar Image (0.25m)GeoTiff  
Bathymetry DEM (1m)GRID1216
Bathymetry HillshadeGRIDize=-1>a2
Bathymetry SlopeGRID12111
Bathymetric ContoursShapefile, line11
Survey FootprintShapefile, polygon11
XYZ (100m, 300m, 500m)Shapefile, point11
XYZ (10m)Shapefile, point31
1m XYZTXT9417
Fledermaus scene, bathymetry.sd, Iview3D viewer5716
Charts (NOAA)GeoTiff84
Humboldt Bay, South
 Data formatSize (zipped)Size (unzipped)
Shaded Relief Image, grayscale (1m)GeoTiff272
Shaded Relief Image,color (1m)GeoTiff804
Sidescan Sonar Image (0.25m)GeoTiff  
Bathymetry DEM (1m)GRID393
Bathymetry HillshadeGRID21
Bathymetry SlopeGRID395
Bathymetric ContoursShapefile, line11
Survey FootprintShapefile, polygon11
XYZ (100m, 300m, 500m)Shapefile, point11
XYZ (10m)Shapefile, point21
1m XYZTXT356
Fledermaus scene, bathymetry.sd, Iview3D viewer5716
Charts (NOAA)GeoTiff84
Humboldt Bay, Data Fusion Project
 Data formatSize (zipped)Size (unzipped)
DEM fusion projectvarious 130





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