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Short Citation:
OCM Partners, 2022: 2007 California Department of Water Resources Topographic LiDAR: San Joaquin Delta, https://www.fisheries.noaa.gov/inport/item/49638.

Item Identification

Title: 2007 California Department of Water Resources Topographic LiDAR: San Joaquin Delta
Short Name: ca2007_cdwr_sanjoaquindelta_m2523_metadata
Status: Completed
Publication Date: 2013-08
Abstract:

These data are from LIDAR flights of the Sacramento-San Joaquin Delta conducted during late January and February of 2007. The work was conducted under contract issued by

California Department of Water Resources to URS Corporation. The prime LIDAR creation subcontractor was EarthData International, (later Fugro EarthData), also known as EDI.

The principal aerial survey firm under subcontract to EDI was Airborne 1 Corporation. In effect, Airborne 1 performed the aerial survey, and EDI did the processing and deliverables

preparation. Also involved in the contract to URS was an independent QA/QC firm, Spectrum Mapping LLC.

The data was delivered to OCM as unclassified, multiple return elevation measurements and intensity in LAS V1.0 format. The NOAA OCM used an unsupervised classification algorithm to

classify the data into the following ASPRS classifications: Class 1 (Unclassified), Class 2 (Ground), and Class 7 (Noise) . Class 2 includes bare earth points and water points.

Purpose:

High-resolution digital elevation maps generated by airborne and stationary LiDAR have led to significant advances in geomorphology, the branch of

geoscience concerned with the origin and evolution of Earth's surface topography. LiDAR provides unique characteristics relative to other remotely sensed data sources

by providing three-dimensional feature information that cannot be derived from traditional imaging sensors.

Notes:

10282

Supplemental Information:

A footprint of this data set may be viewed in Google Earth at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2523/supplemental/ca2007_cwdr_sanjoaquindelta_footprint.KMZ

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation
UNCONTROLLED
None point cloud

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: As Needed
Data Presentation Form: las
Entity Attribute Overview:

LiDAR points in LAS 1.0 format

Entity Attribute Detail Citation:

none

Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility

of the California Department of Water Resources, USGS, Fugro EarthData Inc, Airborne 1, Spectrum Mapping Inc, NOAA, the Office for Coastal Management or its partners.

Data Set Credit: California Department of Water Resources

Support Roles

Data Steward

CC ID: 670819
Date Effective From: 2013-08
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 670821
Date Effective From: 2013-08
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Metadata Contact

CC ID: 670822
Date Effective From: 2013-08
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 670820
Date Effective From: 2013-08
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1134242
W° Bound: -122.140593
E° Bound: -121.182752
N° Bound: 38.592147
S° Bound: 37.60116

Extent Group 1 / Time Frame 1

CC ID: 1134241
Time Frame Type: Range
Start: 2007-01
End: 2007-02

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Access Information

Security Class: Unclassified
Data Access Procedure:

This data can be obtained on-line at the following URL:

https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2523

;

Data Access Constraints:

None

Data Use Constraints:

Users should be aware that temporal changes may have occurred since this data set was collected

and some parts of this data may no longer represent actual surface conditions. Users should not use

this data for critical applications without a full awareness of its limitations. These data

depict the heights at the time of the survey and are only accurate for that time.

Distribution Information

Distribution 1

CC ID: 740477
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2523
Distributor:
File Name: Customized Download
Description:

Create custom data files by choosing data area, product type, map projection, file format, datum, etc.

Distribution 2

CC ID: 740478
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2523/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 740480
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 740481
URL: https://coast.noaa.gov
URL Type:
Online Resource

URL 3

CC ID: 740482
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2523/supplemental/ca2007_cwdr_sanjoaquindelta_footprint.KMZ
Name: Browse Graphic
URL Type:
Browse Graphic
File Resource Format: kmz
Description:

This graphic shows the lidar coverage for the San Joaquin Delta in California. The data covers partial portions of Yolo, Sacramento, Solano, San Joaquin, Contra Costa, and Alameda Counties.

Activity Log

Activity Log 1

CC ID: 670842
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 670841
Activity Date/Time: 2017-11-14
Description:

Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.

Activity Log 3

CC ID: 718180
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 740479
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Data Quality

Accuracy:

The identification of features is provided by the distinct electromagnetic energy it emits,reflects, or otherwise transmits. This is called the spectral signature.

Other signatures such as tone (lightness or darkness), texture (surface roughness or smoothness), pattern,shadow, shape, and size are as important. Thus, through the

use of the thematic mapper sensor, such elements as water features, soils, and vegetation can be identified and distinguished from each other.

Horizontal Positional Accuracy:

1.0m (3.28ft) @ 1 sigma; Quantitative Value: 1.0 meters, Test that produced the value: Horizontal accuracy @ 1 sigma

Vertical Positional Accuracy:

Data set tested to meet FVA of 9.4 cm RMSEz. (18.5cm (0.6ft) @ 95% confidence level, 15cm (0.5ft) @ 90% confidence level.; Quantitative Value: .094 meters, Test that produced the value: Tested to meet RMSEz of 9.4 cm Accuracyz = RMSEz X 1.9600 at the 95% confidence level.

Completeness Report:

The lidar collection has been acquired by the CWDR and is only distributed by the NOAA Office for Coastal Management. While the OCM tries to ensure data quality, there is no warranty as to the accuracy,

reliability or completeness of the lidar data.

Conceptual Consistency:

All data formatted by OCM validated using commercial GIS software to ensure proper formatting and loading.

Lineage

Process Steps

Process Step 1

CC ID: 1134239
Description:

The NOAA Office for Coastal Management (OCM) received topographic files in LAS format. The files contained lidar

elevation and intensity measurements. The data were received in projected UTM Zone 10N, NAD83 coordinates

and were vertically referenced to NAVD88. The vertical units of the data were meters. OCM performed the following processing

for data storage and Digital Coast provisioning purposes:

1. The unclassified LAS files were classified by NOAA OCM using MARS7 software. The data contains Class 1 (Unclassified), Class 2 (Ground), and Class 7 (Noise).

2. The LAS files were retiled into 1500x1500 meters tiles using MARS7 software.

3. The LAS files' Class 2 (Ground) points were rechecked for High/Low Noise. If points were found they were removed from the data.

4. Horizontally the data was converted from projected UTM Zone 10N coordinates (meters) to geographic NAD83 coordinates (decimal degrees).

5. Vertically the data was converted from orthometric NAVD88 heights (meters) to ellipsoidal NAD83 (meters) using GEOID03 (Geoid model assumed).

Process Date/Time: 2013-04-01 00:00:00

Catalog Details

Catalog Item ID: 49638
GUID: gov.noaa.nmfs.inport:49638
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-15 15:21+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2022-03-16
Owner Org: OCMP
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2022-03-16
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2023-03-16