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Service Description: This dataset is an updated version of the shapefile created by Jennifer Dare at the California Coastal Commission in 2005. The original version of this shapefile was created by comparing oblique aerial imagery on the California Coastal Records website (www.californiacoastline.org) and vertical imagery to locate shore protection structures. A polyline representing the alongshore length of each structure was digitized by tracing an existing shoreline shapefile.
The version created by Elena Vandebroek (ESA PWA) in 2011 changed the original version in the following ways: 1) Study area was focused to San Francisco County and part of San Mateo County. 2) Armoring was moved/added to a more accurate location in space, using NAIP aerial imagery from 2010. The original armor data set projected all armoring along a single shoreline. 3) The new armor dataset reflects removals, additions, or changes to the armoring in the study area since the 2005 armor dataset by Jennifer Dare. 4) Linear and polygon features were separated into two separate shapefiles. Revetments are considered polygon features while seawalls, mid bluff walls, upper bluff walls, jute, and piles are considered linear features. This allows for approximate volume/area and length calculations of revetments and linear features, respectively. Dataset was submitted to CSMW as part of the San Francisco Littoral Cell Coastal Regional Sediment Management Plan (2012).
Map Name: CSMW_San_Francisco_Coastal_Armoring_Areas_ESA_PWA_2011
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Description: This dataset is an updated version of the shapefile created by Jennifer Dare at the California Coastal Commission in 2005. The original version of this shapefile was created by comparing oblique aerial imagery on the California Coastal Records website (www.californiacoastline.org) and vertical imagery to locate shore protection structures. A polyline representing the alongshore length of each structure was digitized by tracing an existing shoreline shapefile.
The version created by Elena Vandebroek (ESA PWA) in 2011 changed the original version in the following ways: 1) Study area was focused to San Francisco County and part of San Mateo County. 2) Armoring was moved/added to a more accurate location in space, using NAIP aerial imagery from 2010. The original armor data set projected all armoring along a single shoreline. 3) The new armor dataset reflects removals, additions, or changes to the armoring in the study area since the 2005 armor dataset by Jennifer Dare. 4) Linear and polygon features were separated into two separate shapefiles. Revetments are considered polygon features while seawalls, mid bluff walls, upper bluff walls, jute, and piles are considered linear features. This allows for approximate volume/area and length calculations of revetments and linear features, respectively. Dataset was submitted to CSMW as part of the San Francisco Littoral Cell Coastal Regional Sediment Management Plan (2012).
Copyright Text: Elena Vandebroek, ESA PWA and Jennifer Dare, California Coastal Commission
Spatial Reference:
102100
(3857)
Single Fused Map Cache: false
Initial Extent:
XMin: -1.3655546381874766E7
YMin: 4525826.153384516
XMax: -1.3618570160085518E7
YMax: 4546966.734150531
Spatial Reference: 102100
(3857)
Full Extent:
XMin: -1.36382370319E7
YMin: 4524303.772399999
XMax: -1.36358795101E7
YMax: 4548489.115099996
Spatial Reference: 102100
(3857)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Coastal Armoring Areas (ESA PWA, 2011)
Author:
Comments: This dataset is an updated version of the shapefile created by Jennifer Dare at the California Coastal Commission in 2005. The original version of this shapefile was created by comparing oblique aerial imagery on the California Coastal Records website (www.californiacoastline.org) and vertical imagery to locate shore protection structures. A polyline representing the alongshore length of each structure was digitized by tracing an existing shoreline shapefile.
The version created by Elena Vandebroek (ESA PWA) in 2011 changed the original version in the following ways: 1) Study area was focused to San Francisco County and part of San Mateo County. 2) Armoring was moved/added to a more accurate location in space, using NAIP aerial imagery from 2010. The original armor data set projected all armoring along a single shoreline. 3) The new armor dataset reflects removals, additions, or changes to the armoring in the study area since the 2005 armor dataset by Jennifer Dare. 4) Linear and polygon features were separated into two separate shapefiles. Revetments are considered polygon features while seawalls, mid bluff walls, upper bluff walls, jute, and piles are considered linear features. This allows for approximate volume/area and length calculations of revetments and linear features, respectively. Dataset was submitted to CSMW as part of the San Francisco Littoral Cell Coastal Regional Sediment Management Plan (2012).
Subject: Existing coastal armoring (polygons) in the San Francisco Littoral Cell Coastal Regional Sediment Management Plan study area.
Category:
Keywords: coastal armor,shore protection structure,seawall,bluff wall,piles,concrete,gunnite,rock,gabbion,timber,soldier pile,rubble,sheet pile,formed concrete units,concrete crib wall,San Mateo,San Francisco,California
AntialiasingMode: None
TextAntialiasingMode: Force
Supports Dynamic Layers: true
MaxRecordCount: 2000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON, PBF
Supports Query Data Elements: true
Min Scale: 0
Max Scale: 0
Supports Datum Transformation: true
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