gov.noaa.nmfs.inport:50019
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(NSRS2007)
2008-11-12
publication
European Petroleum Survey Group
https://apps.epsg.org/api/v1/CoordRefSystem/4759/export/?format=gml
urn:ogc:def:crs:EPSG:4759
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
2007 Southwest Florida Water Management District (SWFWMD) LiDAR: Hernando County
swfwmd_hernando_m78_metadata
2008-02-18
publication
NOAA/NMFS/EDM
50019
https://www.fisheries.noaa.gov/inport/item/50019
WWW:LINK-1.0-http--link
Full Metadata Record
View the complete metadata record on InPort for more information about this dataset.
information
This dataset is one component of a digital terrain model (DTM) for the Southwest Florida Water Management Districts FY2006 Digital
Orthophoto (B089) and LiDAR Project (L776) encompassing approximately 462 square miles in Hernando County, Florida. This dataset is
comprised of 530 LiDAR files, based on the DISTRICT 5,000' by 5,000' sheet index system in the LAS version 1.1 file format. LiDAR
acquisition dates were January 11 through January 16, 2007. The raw data was collected at an average ground sample distance of
2.1 feet. Other components of the DTM include a personal geodatabase in accordance with the SWFWMD 2006 Topographic Database Design
containing: obscured vegetation polygons; road overpass polygons; road breaklines; soft feature breaklines; water body polygons;
coastal shorelines; hydrographic features breaklines; island polygons; and 1-foot contours. Final products include FEMA-compliant
LIDAR-derived DTM data and 1-foot contours (for cartographic visualization purposes only) meeting or exceeding National Map Accuracy
Standards for 2-foot contours.
Original contact information:
Contact Name: Mapping and GIS
Contact Org: Southwest Florida Water Management District
Phone: (352) 796-7211
This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.
The DTM was developed to support the District's regulatory, land management and acquisition, planning, engineering, and habitat
restoration projects.
Acknowledgement of the Southwest Florida Water Management District would be appreciated in products derived from these data.
The custom download may be cited as National Oceanic and Atmospheric Administration (NOAA) Digital Coast Data Access Viewer. Charleston, SC: NOAA Office for Coastal Management. Accessed Mar 01, 2024 at https://coast.noaa.gov/dataviewer.
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
Surface
Terrain
theme
Lidar - partner (no harvest)
project
InPort
otherRestrictions
Cite As: OCM Partners, [Date of Access]: 2007 Southwest Florida Water Management District (SWFWMD) LiDAR: Hernando County [Data Date Range], https://www.fisheries.noaa.gov/inport/item/50019.
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. DTM accuracy specifications are valid only within the Hernando County limits. The user is cautioned that any DTM data
falling outside of the Hernando County limits may not meet the accuracy specifications.
otherRestrictions
Distribution Liability: Any conclusions drawn for the analysis of this information are not the responsibility of the Southwest Florida
Water Management District (SWFWMD), the Office for Coastal Management, or its partners.
unclassified
NOAA Data Management Plan (DMP)
NOAA/NMFS/EDM
50019
https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/50019.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
-81.925929
-81.848175
28.308789
28.35011
| Currentness: Publication Date
2007-01-11
2007-01-16
Project Title: FY2007 Digital Orthophoto (B089) and LiDAR Project (L776) Purchase Order: 07POSOW0322 Work Order Name: North District
One-Foot Orthophoto and LiDAR - Work Order 1 Vendor Name: Woolpert, Inc.
The Hernando County LiDAR Final Report may be viewed at:
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/78/supplemental/Hernando_County_Final_Report.pdf
A footprint of this data set may be viewed in Google Earth at:
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/78/supplemental/2007_SWFWMD_Lidar_Hernando_County.kmz
false
eng
false
Point
2022-03-16
publication
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=78
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/geoid18/78/index.html
WWW:LINK-1.0-http--link
Bulk Download
Simple download of data files.
download
dataset
Accuracy
Refer to SWFWMD MTS Survey Report, FY2007 Digital Orthophoto and LiDAR (dated 4/31/2008).
Horizontal Positional Accuracy
Horizontal accuracy shall be tested to meet or exceed a 4.5 foot (1.37 m) horizontal accuracy at 95 percent confidence level
using RMSE(r) x 1.7308 as defined by the National Standard for Spatial Data Accuracy (NSSDA). See SWFWMD MTS Report of DOI Survey,
FY2007 Digital Orthophoto and LiDAR B089 & L776 (dated 4/31/2008)).
Vertical Positional Accuracy
Tested vertical accuracy of the LiDAR data is 0.45 ft (13.71 cm) at the 95% confidence level for unobscured locations. See
SWFWMD MTS Report of DOI Survey, FY2007 Digital Orthophoto and LiDAR (B089 & L776 (dated 4/31/2008)).
Completeness Measure
Cloud Cover: 0
Completeness Report
All elevation measurements within the bounding coordinates of this XML were used to derive this dataset.
Conceptual Consistency
The LiDAR DTM was developed in accordance with the Federal Emergency Management Agency's (FEMA) Guidelines and Specifications for
Flood Hazard Mapping Partners, Appendix A: Guidance for Aerial Mapping and Surveying, April 2003, and in accordance with the
2007 SWFWMD LiDAR specifications.
The LiDAR data was acquired using a Leica ALS50 from an average altitude of 2,400-feet above ground level to provide an average
ground sample distance of 2.1-feet. First and last return data was collected along with the signal return intensity. Two
redundant airborne GPS bases stations were utilized during the data acquisition with maximum line-of-sight distance between
the base station and aircraft of 20-km. The LiDAR data was reduced using Grafnav (Waypoint Consulting) for GPS post-processing,
PosProc (Applanix Crop) for IMU processing, ALS50 Post Processor (LH Systems) to initial LiDAR processing, TerraScan (Terrasolid)
for initial point classification, and proprietary Woolpert developed software for refining the point classification and QC.
The LiDAR data was reviewed in 3D using a digital photogrammetric work station using ADS40 digital stereo imagery. During the
production process, LiDAR data gaps between the flight lines were observed. These gaps between flight lines were corrected by
adding photogrametrically compiled mass points. These points are classified as class 10, in the LAS file. In the areas with the
compiled mass points, it may be noted that the mass points are not as dense the areas with complete LiDAR coverage. The mass
points were compiled at a sufficient density to define the surface to contract specifications. The LAS files contain 5
classifications: 1 = unclassified; 2 = ground; 9 = water; 10 = photogrammetric masspoints; and 11 = swamp and/or wetlands.
The class 1 consists of all points not on the ground. Class 2 consists of bare earth points. Class 9 consists of points within
water polygons. Class 11 consists of points within swamps and/or wetlands. Class 10 consists of supplementary mass points that
were photogrametrically compiled on point's features such as peaks or pits, and LiDAR data gaps. These points were created to
maintain the accuracy of the DTM. 3D breaklines were collected at the digital photogrammetric workstation during the LiDAR data
review. These breaklines were delineated to insure the DTM is hydrologically correct. Hydrologically Enforced Elevation Data is
defined as "Hydorenforced TINS, DEMS, or contours ensure that top surfaces of bridges and culverts are cut by stream breaklines
so that computer models will accurately represent drainage flow" per FEMA's Appendix A A.4.10. The breaklines were collected
for hydrologically significant features as appropriate to support the development of the generation of 2-foot contours meeting
National Map Accuracy Standards. The following breakline features were classified and separated: Closed Water Body Features,
Linear Hydrographic Features, Coastal Shorelines, Road Features, Soft Features, Obscured Vegetated Areas, Island Features,
Overpasses, and Bridges. Per contract specifications, culverts were not collected as part of this project. Therefore continuity
of hydrographic features may not be consistent. During final data production and analysis, the occurrence of mound type features
in the data set was noted. These areas were checked, and verified to be above ground septic systems. For a complete description
of survey methods, processing methods, software, system parameters, and accuracy analysis, see the Florida MTS Report of
Specific Purpose Survey, SWFWMD MTS Report of DOI Survey, FY2007 Digital Orthophoto and LiDAR (B089 & L776 (dated 4/31/2008))
2007-01-01T00:00:00
Dataset copied.
Dataset copied.
Dataset copied.
The NOAA Office for Coastal Management (OCM) received the files in LAS format. The files contained Lidar intensity and
elevation measurements. The data was in Florida State Plane Projection and NAVD88 vertical datum. OCM performed the following processing
to the data to make it available within the Digital Coast:
1. The data were converted from Florida State Plane West coordinates to geographic coordinates.
2. The data were converted from NAVD88 (orthometric) heights to GRS80 (ellipsoid) heights using Geoid 03.
3. The LAS data were sorted by latitude and the headers were updated.
2008-04-24T00:00:00
Source Contribution: Unknown | Source Geospatial Form: Model | Type of Source Media: Digital tape media
Hernando County, Florida: Digital Terrain Model Derived From 2006 Aircraft Laser Elevation Measurements
2006-08-24
publication
2006-08-24
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:
2024-03-01T08:34:34
NOAA Office for Coastal Management
coastal.info@noaa.gov
processor
otherRestrictions
Use Constraints: This dataset is not valid without the signed and sealed copy of the Florida Minimum Technical Standards Report
of Specific Purpose Survey dated 4/31/2008. Please refer to this document for user constraints.