gov.noaa.nmfs.inport:49770
eng
UTF8
dataset
OCM Partners
resourceProvider
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
2024-02-29T00:00:00
ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data
ISO 19115-2:2009(E)
NAD83(HARN)
2008-11-12
publication
European Petroleum Survey Group
https://apps.epsg.org/api/v1/CoordRefSystem/4152/export/?format=gml
urn:ogc:def:crs:EPSG:4152
6.18.3
North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters
North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters
https://apps.epsg.org/api/v1/VerticalCoordRefSystem/5703/?api_key=gml
North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters
Link to Geographic Markup Language (GML) description of reference system.
information
resourceProvider
European Petroleum Survey Group
https://www.epsg.org/
European Petroleum Survey Group Geodetic Parameter Registry
Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations.
search
publisher
vertical
OGP
2006-11-28
false
urn:ogc:def:cs:EPSG::6499
Vertical CS. Axis: height (H). Orientation: up. UoM: meter.
Used in vertical coordinate reference systems.
urn:ogc:def:axis:EPSG::114
H
up
urn:ogc:def:crs:EPSG::5703
2006 Federal Emergency Management Agency (FEMA) Topographic Lidar: Bristol and Plymouth Counties, Massachusetts
ma2006_fema_bristolplymouth_m2602_metadata
2013-11
publication
NOAA/NMFS/EDM
49770
https://www.fisheries.noaa.gov/inport/item/49770
WWW:LINK-1.0-http--link
Full Metadata Record
View the complete metadata record on InPort for more information about this dataset.
information
https://coast.noaa.gov/dataviewer
WWW:LINK-1.0-http--link
Citation URL
Online Resource
download
https://coast.noaa.gov
WWW:LINK-1.0-http--link
Citation URL
Online Resource
download
FEMA Contract No. EME-2003-CO-0340
FEMA Task Order T018
Sanborn Map Company furnished the collection and processing, and development of Lidar and contours using photogrammetry to support the FEMA mapping
requirements for a total of 142 square miles in coastal areas in Plymouth and Bristol Counties in Massachusetts. The 142 square miles includes the
communities of Westport, Dartmouth, New Bedford, Fairhaven, Mattapoisett, Marion, and Wareham. The project area was defined using a buffered shapefile
with limits along the coastline. The project area included a portion of both counties. All lidar data was acquired during November 2006 by Sanborn.
Orthophotography used to create 2D breaklines was produced in 2005 by MassGIS as part of its statewide orthophoto program. All lidar data that
was acquired was produced in accordance with FEMA specifications (Source: FEMA Guidelines and Specifications, Appendix N, Section N.1.2).
Lidar Acquisition Parametes:
Average Altitude: 1,200 Meters AGL
Airspeed: ~120 Knots
Scan Frequency: 36 Hertz
Scan Width Half Angle: 16 Degrees
Pulse Rate: 50000 Hertz
The data being distributed through the NOAA Digital Coast are Gridded Bare-Earth LAS files.
This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.
The LIDAR derived data sets, including the first and last returns, a Gridded DEM, TIN file, 2' contours in ESRI geodatbase format and masspoint and
Breakline files were developed to support Camp Dresser and McKee's continued development of updated Digital Flood Insurance Rate Maps and flood
insurance studies for coastal areas in Massachusetts. Contours are based on bare earth LIDAR and breaklines digitized from 2D orthophotography
(subsequently draped over the 3D LIDAR points) (Source: FEMA Guidelines and Specs, Appendix N). Coastal shoreline areas were set a 0.00 elevation to
cartographically represent contours.
completed
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
custodian
asNeeded
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2602/supplemental/ma2006_fema_bristolplymouth.KMZ
This graphic shows the lidar coverage for the communities of Westport, Dartmouth, New Bedford, Fairhaven, Mattapoisett, Marion, and Wareham.
kmz
Breaklines
Contours
DEM
Digital Terrain Model
Elevation Data
Flow vectors
LIDAR
Land Surface
Relief
Slope
Topography
theme
FEMA NFIP Topic Category
Lidar - partner (no harvest)
project
InPort
otherRestrictions
Cite As: OCM Partners, [Date of Access]: 2006 Federal Emergency Management Agency (FEMA) Topographic Lidar: Bristol and Plymouth Counties, Massachusetts [Data Date Range], https://www.fisheries.noaa.gov/inport/item/49770.
NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
otherRestrictions
Access Constraints: None
otherRestrictions
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.
otherRestrictions
Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of FEMA, Sanborn, CDM, MASSGIS, NOAA, the Office for Coastal Management
or its partners.
unclassified
NOAA Data Management Plan (DMP)
NOAA/NMFS/EDM
49770
https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/49770.pdf
WWW:LINK-1.0-http--link
NOAA Data Management Plan (DMP)
NOAA Data Management Plan for this record on InPort.
information
crossReference
vector
eng; US
elevation
-71.136354
-70.588933
41.47402
41.795113
| Currentness: Ground Condition
2006-11-10
2006-11-26
A complete description of this dataset is available in the project report submitted to FEMA Region 1 by CDM:
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2602/supplemental/ma2006_fema_bristolplymouth.pdf
A footprint of this data set may be viewed in Google Earth at:
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2602/supplemental/ma2006_fema_bristolplymouth.KMZ
false
eng
false
none
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
distributor
https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2602
WWW:LINK-1.0-http--link
Customized Download
Create custom data files by choosing data area, product type, map projection, file format, datum, etc.
download
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2602/index.html
WWW:LINK-1.0-http--link
Bulk Download
Simple download of data files.
download
dataset
Vertical Positional Accuracy
The lidar data was evaluated using a collection of 11 GPS surveyed checkpoints. The category classes of bare earth, low grass and urban were used.
For the Bristol checkpoints, the RMSEz is 14.7 centimeters. This area yielded much better results than the project requirement of 18.5 centimeters
RMSEz. The vertial accuracy of the source data meet or exceed vertical National Map Accuracy Standards for 2-foot contour mapping. Please set the
Project Report located in the supplemental information section above for more details.
; Quantitative Value: 0.294 meters, Test that produced the value:
This value reflects the data's tested Vertical Root Mean Squared Error (RMSEz) at 95% confidence interval (RMSEz @ 95% confidence = RMSEz x 1.9600)
as defined by the Federal NSSDA (National Spatial Standard for Data Accuracy). Units in meters.
Completeness Report
Terrain data are derived datasets that aid automated hydrologic and hydraulic analyses, the flood hazard area boundary delineations, and quality control.
Conceptual Consistency
Sanborn used proprietary algorithms to remove features and artifacts in the first and last return data that did not reflect true ground elevations. New
aerial stereo photography was flown, and aerial triangulated to allow production of breakline ehnacement of the Bare earth DEM and to hydrologically
enforce contours and elevation data through the compilation of drainage breaklines.
Using an Optech Light Detection and Ranging (LiDAR) system, flight lines were planned for standard density 1.4 meter GSD. The Flight plan for the
project includes the following specifications to fully meet the project requirements - single pass density of approximately 2.0 square meters per
sample * Swath width 728 meters * Flight altitude 1000 meters * flight line spacing -589 meters with 125 meters overlap *Scan Frequency- 35 Hz *Scan
Angle- 20 degrees * Aircraft ground speed -- 140 knots * System Calibration pre and post mission * Two GPS base stations within 30 KM. Multiple
returns were recorded for each laser pulse along with an intensity value for each return. The data are calibrated for geographic referencing. Points
are further processed, using TerraSolid software, to classify return values. The first and last return data is filtered to remove the vegetation
and above ground manmade features to yield a ground surface. The bare earth elevation data was draped over the existing orthophotos. Breaklines
for hydrographic features, bridges, culverts and major roadways were captured in 2D. Elevations were associated to the breaklines by draping onto
the Lidar data. The DTM was then used to produce a TIN. The TIN was used to generate 2-ft contours.
2006-12-31T00:00:00
The NOAA Office for Coastal Management (OCM) received topographic files in ASCII format. The files contained lidar elevation measurements. The data
were received in Massachusetts State Plane Mainland (Zone 2001), NAD83 coordinates and were vertically referenced to NAVD88 using the Geoid03
model. The vertical units of the data were feet. OCM performed the following processing for data storage and Digital Coast provisioning purposes:
1. The ASCII files were converted to LAS V1.2 using LASTools' txt2las.
2. The topographic las file '8002645' was found to be corrupt and removed from the data set.
3. All points in the topographic las files were converted to Class 2 (Ground) using LASTools' las2las.
4. The topographic las files were found to contain noise, those points were manually reclassified to Class 7 (Noise) using Merrick MARS7.
5. All additional VLRs in the topographic las files' header used by MARS7 were removed using LASTools' las2las.
6. The topographic las files were converted from orthometric (NAVD88) heights to ellipsoidal heights using Geoid03.
7. The topographic las files were converted from a Projected Coordinate System (MA SP 2001) to a Geographic Coordinate System (NAD83).
8. The topographic las files' horizontal units were converted from feet to decimal degrees.
9. The topographic las files' vertical units were converted from feet to meters.
2013-11-01T00:00:00
The vertical values in this data set have been converted to reference North American Vertical Datum of 1988 (NAVD88) (GEOID18) meters, using the GEOID18 grids provided by the National Geodetic Survey.
Any datum and projection transformations were then done with the Office for Coastal Management 'datum_shift' program. Compression to an LAZ file was done with the LAStools 'laszip' program and can be unzipped with the same free program (laszip.org)
Processing notes:
2024-03-01T06:27:12
NOAA Office for Coastal Management
coastal.info@noaa.gov
processor