Skip to main content
USGS - science for a changing world

LEAN-Corrected DEM for Suisun Marsh

Dates

Publication Date
Time Period
2018
Revision
2019-07-24

Citation

Buffington, K.J., Thorne, K.M., Takekawa, J.Y., Chappell, S., Swift, T., Feldheim, C., Squellati, A., and Mardock, D.K., 2019, LEAN-Corrected DEM for Suisun Marsh: U.S. Geological Survey data release, https://doi.org/10.5066/P97R4ES3.

Summary

Lidar-derived digital elevation models often contain a vertical bias due to vegetation. In areas with tidal influence the amount of bias can be ecologically significant, for example, by decreasing the expected inundation frequency. We generated a corrected digital elevation mode (DEM) for Suisun marsh using a modification of the Lidar Elevation Adjustment with NDVI (LEAN) technique (Buffington et al. 2016). GPS survey data (6912 points, collected across public and private land in 2018), Normalized Difference Vegetation Index (NDVI) derived from an airborne multispectral image (June 2018), a 1 m lidar DEM from September 2018, and a 1 m canopy surface model were used to generate models of predicted bias across the study domain. Due to [...]

Contacts

Attached Files

Click on title to download individual files attached to this item.

LEAN-Corrected DEM for Suisun Marsh.xml
Original FGDC Metadata

View
15.34 KB
SuisunMarsh_2018_LEAN_DEM_1m_mm_USGS.tif 946.19 MB
Extension: SuisunDEM_5m_SD.zip
SuisunDEM_5m_SD.sd 36.35 MB
thumbnail.png thumbnail 442 Bytes

Purpose

The lean-corrected DEM is appropriate for use in vegetated wetlands. Urban areas and non-vegetated hard surfaces may have a lower elevation than reality due to the LEAN correction.

Rights

The authors of these data require that data users contact them regarding intended use and to assist with understanding limitations and interpretation. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Preview Image

Map

Spatial Services

ArcGIS Mapping Service

WMS Service

Communities

  • National and Regional Climate Adaptation Science Centers
  • Southwest CASC
  • USGS Data Release Products
  • USGS Western Ecological Research Center

Associated Items

Tags

Provenance

Data source
Input directly

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P97R4ES3

ArcGIS Service Definition Extension

filePathUsed__disk__a1/12/52/a112524dbdce52eba922c7f26e741bfd9cf321b1
boundingBox
minY38.0361985148909
minX-122.14735157529
maxY38.2597454677061
maxX-121.832440818176
processingStatesuccess
servicePath5d140b8ae4b0941bde59934a
nameSuisunDEM_5m_SD.sd
files
nameSuisunDEM_5m_SD.sd
contentTypex-gis/x-arcgis-service-def
pathOnDisk__disk__a1/12/52/a112524dbdce52eba922c7f26e741bfd9cf321b1
dateUploadedWed Jul 24 12:35:37 MDT 2019
originalMetadatatrue
namethumbnail.png
contentTypeimage/png
pathOnDisk__disk__8a/f1/db/8af1db2904203caddfd19d7e35d06a63c300bfbc
imageWidth200
imageHeight133
dateUploadedWed Jul 24 12:38:35 MDT 2019
enabledServices
WMSServer
serviceId5d140b8ae4b0941bde59934a

Item Actions

View Item as ...

Save Item as ...

View Item...