49883
2008 Federal Emergency Management Agency (FEMA) New York Lidar: Erie County
ny2008_erie_m107_metadata
Data Set
Published / External
49401
Lidar - partner (no harvest)
Project
Completed
2008-08
Using Leica Geosystems ALS50 Laser Systems, 89 flight lines with a nominal point spacing = 1.4 meters (4.59 feet)
were collected over Erie County, NY (approximately 1044 square miles). Multiple returns were recorded for each laser
pulse along with an intensity value for each return. The data acquisition occurred in missions on April 17, 2008
and April 28, 2008. During the LIDAR campaign, the field crew conducted a GPS field survey to establish final
coordinates of the ground base stations for final processing of the base-remote GPS solutions. This is a bare
earth classified data set; points are classified as ground or unclassified. Please note that water points are
sometimes classified as 'Unclassified' and other times as 'Ground'.
LIDAR data is remotely sensed high-resolution elevation data collected by an airborne collection platform.
Using a combination of laser range finding, GPS positioning and inertial measurement technologies; LIDAR instruments
are able to make highly detailed Digital Elevation Models (DEM) of the earth's terrain, man-made structures and vegetation.
This data was collected at a resolution to aid in coastal management decisions including flood plain analysis and mapping.
Original contact information:
Contact Name: Andrew Lucero
Contact Org: Sanborn Map Company, Inc.
Title: Sr. Project Manager
Phone: (719) 265-5645
Email: alucero@sanborn.com
LIDAR data is used for 3D visualization, elevation based analysis and for feature extraction.
10527
Reflective surface data represents the DEM created by laser energy reflected from the first
surface encountered by the laser pulse. Some energy may continue beyond this initial surface to be reflected by a
subsequent surface as represented by the Last Return data. Intensity information is captured from the Reflective
Surface pulse and indicates the relative energy returned to the sensor as compared to the energy transmitted. The
Intensity image is not calibrated or normalized but indicates differences in energy absorption due to the interaction
of the surface materials with laser energy at the wavelength transmitted by the sensor.
For more information about this data, please refer to the Final Report for Erie County Corridors & Niagara County at:
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/107/supplemental/Final_LiDAR_Report_Niagara_Erie.pdf
Theme
ISO 19115 Topic Category
elevation
Office for Coastal Management
Charleston
SC
Data Set
Unknown
Any conclusions drawn from the analysis of this information are not the responsibility of the
Federal Emergency Management Agency (FEMA), Sanborn Map Company, Inc, Medina Consultants, the Office for Coastal Management or its partners.
Acknowledgement of the Federal Emergency Management Agency (FEMA), Sanborn Map Company, Inc, and
Medina Consultants would be appreciated in products derived from these data.
Data Steward
2008-08
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Distributor
2008-08
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Metadata Contact
2008-08
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Point of Contact
2008-08
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Ground Condition
-79.152597
-78.445902
43.101267
42.428485
Discrete
2008-04-17
Discrete
2008-04-28
Yes
Unclassified
This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer
The data set is dynamically generated based on user-specified parameters.
;
None
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.
https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=107
Customized Download
Create custom data files by choosing data area, product type, map projection, file format, datum, etc.
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/107/index.html
Bulk Download
Simple download of data files.
https://coast.noaa.gov
Online Resource
https://coast.noaa.gov/dataviewer
Online Resource
2016-05-23
Date that the source FGDC record was last modified.
2017-11-14
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.
2018-02-08
Partial upload of Positional Accuracy fields only.
2018-03-13
Partial upload to move data access links to Distribution Info.
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.4.1420
Contracted to meet 1 meter (RMSE) horizontal accuracy.
LiDAR data accuracy determination shall employ the National Standard for Spatial
Data Accuracy (NSSDA). Contracted to meet 18.5cm (RMSE) on open bare terrain and 37.0cm for obscured areas.
LIDAR raster data is visually inspected for completeness to ensure that any gaps between flight lines
or loss of signal represents less than 5% of required collection area. LIDAR is self-illuminating and has minimal cloud
penetration capability. Water vapor in steam plumes or particulates in smoke may cause reflection of LIDAR signals and
loss of elevation information beneath these plumes. Glass structures and roofs may appear transparent to the LIDAR signal
and therefore may not register on the reflective surface. Some asphalt formulations have been shown to absorb topographic
LIDAR wavelength energy resulting in "pitting" of roof surfaces using this material.
All LAS formatted LIDAR data are validated using commercial GIS software to ensure proper
formatting and loading before delivery. This validation procedure ensures that data on delivery media is in correct
physical format and is readable.
LiDAR
2008-01-01
Discrete
2008
Raw spatial elevation information | Type of Source Media: Hard drive
1
Data Collection: Using an Leica Geosystems ALS50 Laser Systems, 89 flight lines with a nominal
point spacing = 1.4 meters (4.59 feet) were collected over Erie County, NY (approximately 1044 square miles). Multiple
returns were recorded for each laser pulse along with an intensity value for each return. The data acquisition occurred
in missions on April 17, 2008 and April 28, 2008. During the LIDAR campaign, the field crew conducted a GPS field survey
to establish final coordinates of the ground base stations for final processing of the base-remote GPS solutions.
2008-04-01T00:00:00
2
Airborne GPS Processing: Airborne GPS data was differentially processed and integrated with the post
processed IMU data to derive a smoothed best estimate of trajectory (SBET). The SBET was used to reduce the LiDAR slant
range measurements to a raw reflective surface for each flight line. The overlap between flight lines was removed to
provide a homogeneous coverage, and the coverage was classified to extract a bare earth digital elevation model (DEM).
Airborne GPS is differentially processed using the GrafNAV V7.50 software by Waypoint Consulting of Calgary, Alberta,
Canada. IMU data is processed using the PosPac V4.2 software by Applanix Corporation of Richmond Hill, Ontario, Canada.
The reflective surface is derived using the ALS Post Processor software by Leica Geosystems GIS & Mapping Division of
Atlanta, Georgia. The classification and quality control (QC) of LiDAR data is carried out using TerraScan software
by Terrasolid Limited of Helsinki, Finland.
2008-05-01T00:00:00
3
LIDAR Ground Point Classification: The classification and quality control (QC) of LiDAR Ground
point class is carried out using TerraScan software by Terrasolid Limited of Helsinki, Finland. In the filtering
process points are classified as Ground or non-Ground classes (Unclassified).
2008-08-01T00:00:00
4
Output: LAS Files LIDAR points in 1.0 format; ASCII (e,n,z,i) for first return and last return;
ESRI GRID for Bare Earth; GeoTiff (8-bit, single band) Intensity Images.
2008-08-01T00:00:00
5
The NOAA Office for Coastal Management (OCM) received the files in las format. The files contained Lidar
elevation and intensity measurements. The data were in State Plane New York West, FIPS 3103 coordinates, horizontal
units of measure of US survey feet and in NAVD88 Geoid 03 vertical datum with vertical units of measure of feet.
OCM performed the following processing to the data to make it available within the Digital Coast:
1. The data were converted from NY State Plane 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.
4. The data were filtered to remove outliers.
2008-12-23T00:00:00
gov.noaa.nmfs.inport:49883
Anne Ball
2017-11-15T15:22:57
SysAdmin InPortAdmin
2022-08-09T17:11:38
2022-03-16
OCM Partners
OCMP
1002
Public
No
2022-03-16
1 Year
2023-03-16