View In:
ArcGIS JavaScript
ArcGIS Online Map Viewer
Service Description: The use of high-resolution LiDAR, and the products derived from it, allow for levee anatomy to be captured for the surveyed area. The resulting data is a catalog of precise levee location and components. This data can further be used for levee maintenance and management, flood modeling and prediction, as well as levee inventories. In the Delta Anatomy Mapping Project all levee anatomies were delineated using slope grids built from available LIDAR data points. LIDAR data points were converted to digital elevation models and subsequently into slope grids. Thresholds were identified that capture the levee crown, levee landside, levee waterside, ramps and toe ditches. The delineation thresholds were derived from a combination of mapping scale, slope grid resolution and slope thresholds used for each anatomy classification. This data depicts the levee anatomy at the time of the LiDAR survey (2017) and are only accurate for that time. Users should be aware that temporal changes may have occurred since this data set was created and some parts of this data may no longer represent actual surface conditions. The associated data are considered DWR enterprise GIS data, which meet all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.1, dated September 11, 2019. DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data. Comments, problems, improvements, updates, or suggestions should be sent to GIS@water.ca.gov
false
MaxRecordCount: 1000
Supported Query Formats: JSON
Supports Query Data Elements: true
Layers:
Description: The use of high-resolution LiDAR, and the products derived from it, allow for levee anatomy to be captured for the surveyed area. The resulting data is a catalog of precise levee location and components. This data can further be used for levee maintenance and management, flood modeling and prediction, as well as levee inventories. In the Delta Anatomy Mapping Project all levee anatomies were delineated using slope grids built from available LIDAR data points. LIDAR data points were converted to digital elevation models and subsequently into slope grids. Thresholds were identified that capture the levee crown, levee landside, levee waterside, ramps and toe ditches. The delineation thresholds were derived from a combination of mapping scale, slope grid resolution and slope thresholds used for each anatomy classification. This data depicts the levee anatomy at the time of the LiDAR survey (2017) and are only accurate for that time. Users should be aware that temporal changes may have occurred since this data set was created and some parts of this data may no longer represent actual surface conditions.
The associated data are considered DWR enterprise GIS data, which meet all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.1, dated September 11, 2019. DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data. Comments, problems, improvements, updates, or suggestions should be sent to GIS@water.ca.gov
Copyright Text: Calfiornia Department of Water Resources. Contact: gis@water.ca.gov
Spatial Reference:
102100
(3857)
Initial Extent:
XMin: -1.3638972317559939E7
YMin: 4529662.46905945
XMax: -1.3423127432982095E7
YMax: 4658718.013165404
Spatial Reference: 102100
(3857)
Full Extent:
XMin: -1.35717202405E7
YMin: 4531879.022
XMax: -1.34924312675E7
YMax: 4662967.380599998
Spatial Reference: 102100
(3857)
Units: esriMeters
Document Info:
Title: Delta Levees Anatomy 2017
Author:
Comments: The use of high-resolution LiDAR, and the products derived from it, allow for levee anatomy to be captured for the surveyed area. The resulting data is a catalog of precise levee location and components. This data can further be used for levee maintenance and management, flood modeling and prediction, as well as levee inventories. In the Delta Anatomy Mapping Project all levee anatomies were delineated using slope grids built from available LIDAR data points. LIDAR data points were converted to digital elevation models and subsequently into slope grids. Thresholds were identified that capture the levee crown, levee landside, levee waterside, ramps and toe ditches. The delineation thresholds were derived from a combination of mapping scale, slope grid resolution and slope thresholds used for each anatomy classification. This data depicts the levee anatomy at the time of the LiDAR survey (2017) and are only accurate for that time. Users should be aware that temporal changes may have occurred since this data set was created and some parts of this data may no longer represent actual surface conditions.
The associated data are considered DWR enterprise GIS data, which meet all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.1, dated September 11, 2019. DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data. Comments, problems, improvements, updates, or suggestions should be sent to GIS@water.ca.gov
Subject: Delta levee anatomy basemap, derived from 2017 LiDAR.
Category:
Keywords: Delta,Yolo County,Alameda County,2017,California 2017 Bare Earth LiDAR,Contra Costa County,Levee,Levee Anatomy,boundaries,California,Sacramento County,structure,Levee Delta,Sacramento River Delta,San Joaquin County,San Joaquin River Delta,Solano County
AntialiasingMode: null
TextAntialiasingMode: null
Enable Z Defaults: false
Supports ApplyEdits With Global Ids: false
Support True Curves : true
Only Allow TrueCurve Updates By TrueCurveClients : false
Supports Return Service Edits Option : true
Supports Dynamic Layers: false
Child Resources:
Info
Query Data Elements
Relationships
Supported Operations:
Query
Query Contingent Values
QueryDomains
Extract Changes