gov.noaa.nmfs.inport:56763
eng
UTF8
dataset
Elevation
National Geodetic Survey
resourceProvider
Office for Coastal Management
2234 South Hobson Avenue
Charleston
SC
29405-2413
https://www.coast.noaa.gov/
WWW:LINK-1.0-http--link
Office for Coastal Management Website
Website listed for Office for Coastal Management
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)
EPSG::6319
2017 NOAA NGS Topobathy Lidar: St. Jeromes Creek, MD
2019-04-05
publication
NOAA/NMFS/EDM
56763
https://www.fisheries.noaa.gov/inport/item/56763
WWW:LINK-1.0-http--link
Full Metadata Record
View the complete metadata record on InPort for more information about this dataset.
information
National Geodetic Survey
1315 East-West Hwy
Silver Spring
MD
20910
https://geodesy.noaa.gov/
WWW:LINK-1.0-http--link
National Geodetic Survey Website
Website listed for National Geodetic Survey
information
originator
https://coast.noaa.gov/
WWW:LINK-1.0-http--link
NOAA's Office for Coastal Management (OCM) website
Information on the NOAA Office for Coastal Management (OCM)
download
https://coast.noaa.gov/dataviewer/
WWW:LINK-1.0-http--link
NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV)
The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer.
download
This data was collected by NOAA using a Riegl VQ880G sensor. The data was acquired April 9, 2017. The data includes topobathy data in LAS 1.2 format classified as created, unclassified (1); ground (2); topographic noise (7); bathymetric noise (22); water column (25); bathymetric bottom (26); water surface (27); International Hydrographic Organization S-57 object, not otherwise specified (30) in accordance with project specifications. The project consists of approximately
34 square miles of data along the shores of St. Jeromes Creek. This dataset contains 342 500 m x 500 m lidar tiles.
St. Jeromes Creek has been identified as having critical topographic and bathymetric data gaps by NOAA. This lidar data will fill those critical gaps.
We request that you credit the National Oceanic and Atmospheric Administration (NOAA) when you use this data in a report, publication, or presentation.
completed
Office for Coastal Management
2234 South Hobson Avenue
Charleston
SC
29405-2413
https://www.coast.noaa.gov/
WWW:LINK-1.0-http--link
Office for Coastal Management Website
Website listed for Office for Coastal Management
information
custodian
notPlanned
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8777/supplemental/md2017_ngs_topobathy_stjeromecreek_m8777.kmz
This graphic displays the footprint for this lidar data set.
KML
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY > COASTAL BATHYMETRY
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
theme
Global Change Master Directory (GCMD) Science Keywords
17.0
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA
VERTICAL LOCATION > LAND SURFACE
VERTICAL LOCATION > SEA FLOOR
place
Global Change Master Directory (GCMD) Location Keywords
17.0
LIDAR > Light Detection and Ranging
instrument
Global Change Master Directory (GCMD) Instrument Keywords
17.2
Airplane > Airplane
platform
Global Change Master Directory (GCMD) Platform Keywords
17.2
beach
erosion
theme
DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce
dataCentre
Global Change Master Directory (GCMD) Data Center Keywords
2017-04-24
publication
8.5
NGS Lidar
project
InPort
otherRestrictions
Cite As: National Geodetic Survey, [Date of Access]: 2017 NOAA NGS Topobathy Lidar: St. Jeromes Creek, MD [Data Date Range], https://www.fisheries.noaa.gov/inport/item/56763.
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.
otherRestrictions
Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners
unclassified
NOAA Data Management Plan (DMP)
NOAA/NMFS/EDM
56763
https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ngs/dmp/pdf/56763.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
OS Independent
-76.386945
-76.304493
38.020557
38.165636
| Currentness: Ground Condition
2017-04-09
The full workflow used for this project is found in the final project report submitted to NOAA.
false
eng
false
Other
NOAA NGS Topobathy Lidar Class Scheme: St. Jeromes Creek, MD
2024-02-01
publication
LAS/LAZ - LASer
Zip
zip
Zip
Office for Coastal Management
2234 South Hobson Avenue
Charleston
SC
29405-2413
https://www.coast.noaa.gov/
WWW:LINK-1.0-http--link
Office for Coastal Management Website
Website listed for Office for Coastal Management
information
distributor
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8777/index.html
WWW:LINK-1.0-http--link
Bulk Download
Bulk download of data files in LAZ format, geographic coordinates, orthometric heights. Note that the vertical datum (hence elevations) of the files here are different than described in this document.
download
https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8777
WWW:LINK-1.0-http--link
Customized Download
Create custom data files by choosing data area, product type, map projection, file format, datum, etc. A new metadata will be produced to reflect your request using this record as a base.
download
dataset
Horizontal Positional Accuracy
NOAA acquired and calibrated all lidar data and Dewberry classified this data and created derivative products. As such, Dewberry did not perform any absolute positional accuracy testing on this dataset.
Vertical Positional Accuracy
NOAA acquired and calibrated all lidar data and Dewberry classified this data and created derivative products. NOAA collected data to meet 15cm vertical accuracy at 1 sigma.
Completeness Report
Data covers the project boundary.
Conceptual Consistency
Not applicable
Data for the St. Jeromes Creek project was acquired by NOAA using a Riegl VQ880G sensor. All delivered lidar data is referenced to:
Horizontal Datum-NAD83 (2011) epoch: 2010
Projection-UTM Zone 18 North
Horizontal Units-meters
Vertical Datum-NAD83 (2011) epoch: 2010
Vertical Units-meters
This dataset encompasses 342 500 m x 500 m lidar tiles. Both green lidar data and NIR lidar data were acquired.
NOAA acquired, calibrated, and performed the refraction correction of the lidar data. Light travels at different speeds in air versus water and its direction of travel or angle is changed or refracted when entering the water column. The refraction correction process corrects for this difference by adjusting the depth (distance traveled) and horizontal position (change of angle/direction) of the lidar data acquired within water.
Dewberry received the calibrated green and NIR data and verified complete coverage. Relative accuracy of the green swaths compared to overlapping and adjacent green swaths as well as the relative accuracy of green swaths compared to overlapping and adjacent NIR swaths was verified through the use of Delta-Z (DZ) orthos created in GeoCue software. Intraswath or within a swath relative accuracy was verified using Quick Terrain Modeler. Profiles of elevated planar features, such as roofs, were used to verify horizontal alignment between overlapping swaths.
Dewberry used algorithms in TerraScan to create the intial ground/submerged topography surface.
Dewberry created 2-D breaklines by digitizing breaklines in a 2-D environment using intensity imagery as a reference. Dewberry used the 2-D breaklines to classify the bathymetric bottom and ground points properly in TerraScan.
All lidar data was peer-reviewed. Dewberry's QAQC also included creating void polygons for use during review. All necessary edits were applied to the dataset. GeoCue software was used to update LAS header information, including all projection and coordinate reference system information. The final lidar data is in LAS format 1.2 and point data record format 3.
The final classificaton scheme is as follows:
1-Unclassified
2-Ground
7-Topographic Noise
22-Bathymetric Noise
25-Water Column
26-Bathymetric Bottom
27-Water Surface
30-International Hydrograpic Organization (IHO) S-57 Object
All data was then verified by an Independent QC department within Dewberry. The independent QC was performed by separate analysts who did not perform manual classification or editing. The independent QC involved quantitative and qualitative reviews.
2019-02-01T00:00:00
National Geodetic Survey
processor
The NOAA Office for Coastal Management (OCM) received 616 files in las 1.2 format. The files contained lidar intensity and elevation measurements for the project area. OCM performed the following processing for data storage and Digital Coast provisioning purposes:
1. Converted from UTM Zone 18 coordinates to geographic coordinates
3. Sorted by gpstime
4. Compressed the data using laszip
Acquisition
National Geodetic Survey
originator
Processing
Dewberry
originator