Data Downloads

Data is available as services, downloads by watershed (see webmap below), and other means. See the table below for a summary of data products and current download options by product. Please also visit our map gallery, which is automatically updated as we add services and maps to ArcGIS.com. Thanks to Sonoma County ISD and the Ag. Preservation and Open Space District for hosting services!

If you are looking to download contours for a project area less than 500 acres, use the Contour Clip and Email Tool. If you are looking to download imagery for a project area less than 500 acres, use the Image Clip and Email Tool.

To download data related to the 2017 north Bay Fires, visit this page.

LiDAR Products and Derivatives

Data Product Data Product Location or Endpoint
LiDAR Products Data Report Download here
Metadata Files (xml) Download here
Point Cloud Watershed Downloads, OpenTopography, DigitalCoast
1-meter Bare Earth DEM Watershed Downloads, Service Endpoint, Large Area Downloads, Image Clip and Email Tool
1-meter Hydroflattened Bare Earth DEM Watershed Downloads, Service Endpoint, Image Clip and Email Tool
Bare Earth Hillshade Watershed Downloads, Service Endpoint, Large Area Downloads, Image Clip and Email Tool
Hydroflattened Bare Earth Hillshade Watershed Downloads, Service Endpoint, Image Clip and Email Tool
1-meter Canopy Cover Raster Watershed Downloads, Service Endpoint, Image Clip and Email Tool
1-meter Canopy Height Raster Watershed Downloads, Service Endpoint, Image Clip and Email Tool
1-meter Intensity Raster – Veg. Returns Watershed Downloads, Service Endpoint, Image Clip and Email Tool
1-meter Intensity Raster – First Returns Watershed Downloads, Service Endpoint, Image Clip and Email Tool
1-Foot Contours Watershed Downloads, Contour Clip and Email Viewer
Cartographic Building Footprints Countywide Geodatabase (.gdb), Watershed Downloads
Tile Grid for Point Cloud, Orthos, and Contours Download the zipped shapefile here

LiDAR Derived Hydrologic Data Products

Data Product Data Product Location or Endpoint
Vector Hydro Data Products (stream centerlines, confluence points & watersheds) Countywide Geodatabase (.gdb), Watershed Downloads
Raster Hydro Data Products (hydroenforced DEM, flow accumulation, flow direction) Watershed Downloads

Vegetation and Land Cover Map Products

Data Product Data Product Location or Endpoint
Sonoma County Fine-scale Veg. and Habitat Map Vector Tile Service (Solid Colors), Vector Tile Service (Hollow Outlines), Vector Tile Service (Labels Only), Countywide Geodatabase (.gdb), Countywide Shapefile, Countywide Layer Package (with symbology), Layer File (symbology only – no spatial data), Watershed Downloads, PDF Poster Maps, Veg and Habitat Map Datasheet, Key to Map Class Abbreviations
Sonoma County Croplands Feature Service, Countywide Geodatabase (.gdb), Countywide Shapefile, Watershed Downloads, Croplands Datasheet
Sonoma County Lifeform Tile Service, Countywide Geodatabase (.gdb), Countywide Shapefile, Watershed Downloads, Lifeform Datasheet
Sonoma County 'Forest' Lifeform Countywide Geodatabase (.gdb), Watershed Downloads, 'Forest' Lifeform Datasheet
Sonoma County Impervious Surfaces Tile Service, Countywide Geodatabase (.gdb), Watershed Downloads, Impervious Map Datasheet
Sonoma County Water and Wetland Vegetation Countywide Geodatabase (.gdb), Watershed Downloads, Water and Wetland Veg. Datasheet
Sonoma County Carbon and Biomass Countywide Geodatabase Biomass (.gdb), Countywide Geodatabase Carbon (.gdb), Countywide Geodatabase CO2e(.gdb),Watershed Downloads, Aboveground Carbon and Biomass Datasheet
Vegetation Classification Documents and Data Sonoma County Fine Scale Mapping Key, Sonoma County Vegetation Report Volume 1 (Introduction, Methods, and Results), Sonoma County Vegetation Report Volume 2 (Vegetation Descriptions)
Historic 'Soil-Veg' Maps Story Map for Visualizing 'Soil-Veg' Maps, Blog Post on 'Soil-Veg' Maps
Historic Vegetation Mapping Pilot (Arthur Dawson-Mayacamas) PDF Report

Image Products

Data Product Data Product Location or Endpoint
2013 6-inch/pixel Orthos Service Endpoint, MrSID Compressed Tiles
2011 6-inch/pixel Orthos Service Endpoint, MrSID Compressed Tiles
1942 Scanned Imagery – Central Sonoma County .img File (500 MB)
Other Image Services from Sonoma County ISD 1993 DOQs, 2000 Imagery, 2004 Imagery, 2007 Imagery, 2008 Imagery, 2009 NAIP Imagery, 2014 NAIP Imagery, 2016 NAIP Imagery
USGS Topo Service (1:24K) from Sonoma County ISD USGS Topos

If you are interested in downloading DEMs and hillshades for large portions of the county, we have provided 6 large-area rasters for both the bare earth hillshade and the bare earth DEMs. Those tifs are available here. Also, download compressed MrSID files of the 2013 orthos here (use the “2013 County Aerial MrSID Tiles.pdf” to find your tile). The 2011 orthos are also available as MrSID files here.

For more information on countywide image services, see this blog post.

We are also providing access to all LiDAR data (point cloud and all derivatives) for each of the 9 cities in Sonoma County. These downloads include the 2013 4-band orthophotographs as GeoTiffs (except for the City of Santa Rosa). Please click here to download data for a city.

Data is free and publicly available, but please provide credit for these data when you use them in your work. See this text for how to officially acknowledge the sources of this these data. Also, please let us know how you are using the data!

Click a watershed on the interactive map below to download LiDAR data for the watershed (click here for larger version of the webmap). If you are having problems with this webmap try clearing your browser cache or using a different browser.

23 thoughts on “Data Downloads

  1. Cleo Woelfle-Erskine

    Hi, I’m wondering if you or anyone else has created a stream layer from your hydro-flattened DEM? As the NHD stream lines are quite inaccurate, this would be a great service to a number of groups.

    Thanks for any information.

    Reply
    1. admin Post author

      Hi Cleo:
      We are in the process of preparing a number of hydrologic data products for for public distribution. These will include a stream centerline vector layer, watersheds, flow accumulation and flow direction rasters, and a hydro-enforced DEM. All of these datasets will be derived from the 2013 LiDAR. We hope to have these data products available on this web site in the next two weeks.

      Reply
      1. maphead1

        It’s been more than two weeks, and I can’t seem to find the hydrologic data on this site. Is there an updated timeline, or am I looking in the wrong place?

        Reply
        1. admin Post author

          We’ve asked our contractor to do a second round of revisions on the hydrologic data deliverables. They are in the process of completing the revisions and we expect to have final datasets posted by the end of the month.

          Reply
    2. admin Post author

      Hi Cleo: LiDAR derived stream centerline (thalwags) are now available on the data downloads page of this web site.

      Reply
  2. sebastian

    Any chance the 2013 orthos will be available with a clip tool? It would be great to avoid the SIDS headache. They used to be available in jp2 tiles from the usgs website, but now all they have are 2011 1 meter resolution tiles.

    Reply
  3. Brian Wilson

    Jason – (if you are still listening!) You can uncompress MrSID imagery using a free tool downloadable from LizardTech. See http://www.lizardtech.com/downloads/category/#tools__utilities
    I have used the command line utilities to convert MrSID to georeferenced TIFF.

    MrSID can deliver very high compression (40:1) so run the utility on a machine with lots of RAM and enough disk space to hold the decompressed images.

    If you use GDAL http://gdal.org/ then you can process MrSID files there too. It requires downloading the MrSID SDK from the above link. Using GDAL would let you take the MrSID file directly into lots of other raster formats. (Currently it supports 138 formats)

    Hope this helps — Brian

    Reply
  4. Jason

    The contour clip and email viewer utility does not work properly when producing 2010 .dwg’s. The contours do not come in with proper elevation, nor are they indexed properly (i.e. Z=3.67). Will this be resolved?

    Reply
  5. Jason

    I would like to use the LiDAR contour data in conjunction with the MrSID Orthophotos, since I am assuming that both are georeferenced. It seems that the MrSID orthophoto is very large (1.2 GB), yet only 1 foot wide when xref’d into autocad. Obviously the image is compressed….. How do I uncompress it to use with countours, and maintain its georeferenced integrity?

    Reply
    1. Mark Tukman Post author

      Hi Jason: we don’t work much in the CAD world over here – we’re a pure GIS shop. I wish I had an answer for you. Maybe another engineer or CAD person will chime in with an answer to your question.

      Reply
  6. Walter

    2013 imagery rest point not functioning today -perhaps some maintenance since the others seem to be fine?

    ArcGIS REST Framework
    Home

    Error: Service Rasters/ORTHO_2013_IS/ImageServer not found
    Code: 500
    All the great work and data greatly appreciated!!! Excellent use of public & grant monies.

    Reply
    1. admin Post author

      Hi Ben – thanks for your question. We don’t have the point cloud available at this time in ASCII format. However, any day now the Sonoma County LiDAR data will be available on OpenTopography. From OpenTopograpy, you will have the option of downloading the data in ASCII format.

      Reply
      1. Ben

        What I am concerned with is being able to differentiate between all of the different points, ground, veg, building, etc. If that information is included in the ASCII file I can filter them based on that.

        Reply
  7. Isaiah Lopez

    Hello,
    We are working on a vineyard project that would be perfect for using aerial contours on 18450 Rockpile Road in Geyserville. We tried downloading your contour data and could only get it to open with ArcMap GIS software. We use AutoCad Civil 3d software for our plans. The files we downloaded were very large, around 2gb+ range and in we were wondering what the best way to convert those contours or export them into Autocad software since the file is so large it will crash ArcMap multiple times when trying to do anything. Please let us know if you know of any way of making this data more usable. Thanks!
    -Isaiah lopez
    isaiah@kelderengineering.com

    Reply
    1. admin Post author

      Thanks Isaiah – the 1 foot contours are a challenge due to their sheer size (as a result of the massive numbers of features). We are working on coming up with a more elegant means of distribution for the contours, in the form of a viewer that allows the user to select a size-limited area of interested and obtain the LiDAR and Ortho products via an email link. We’re calling this the “Clip and Email” viewer.

      In the meantime, if you email your specific area of interest as a shapefile, kmz, or ESRI feature class, we can clip the contours to just the area that you need and provide you with just this area as .gdb and a shapefile. Hopefully this will be smaller than the entire area of contours that your are trying to work with.

      Reply

Leave a Reply

Your email address will not be published. Required fields are marked *