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OCM Partners Metadata Library > Lidar - partner (no harvest) >

2011 Howard County, Maryland Lidar

Data Set (DS)  |  OCM Partners (OCMP)
GUID: gov.noaa.nmfs.inport:52243  |  Updated: October 17, 2023  |  Published / External 
Summary
Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Spatial Info
Access Info
Distribution Info
URLs
Tech Environment
Data Quality
Lineage
Catalog Details

Summary

Browse graphic

Short Citation
OCM Partners, 2024: 2011 Howard County, Maryland Lidar, https://www.fisheries.noaa.gov/inport/item/52243.
Full Citation Examples

Abstract

Howard County, MD contracted to collect detailed ground elevation data from Aerial LiDAR Sensors for approximately 256 Square Miles as part of the CATSII, 2011 Maryland Statewide Orthophoto Project. The LiDAR data was collected in accordance with FEMA Procedure Memorandum No. 61 - Standards for LiDAR and Other High Quality Digital Topography, for which LiDAR data is collected in accordance with the USGS LiDAR Guidelines and Base Specifications, v13, dated February 22, 2010, for the National Geospatial Program, except as noted in FEMA's Procedure Memorandum No. 61.

Distribution Information

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

  • LAS/LAZ - LASer

    Bulk download of data files in LAZ format, geographic coordinates, orthometric heights.

Access Constraints:

None

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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions.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.

Controlled Theme Keywords

COASTAL ELEVATION, elevation, TERRAIN ELEVATION

Child Items

No Child Items for this record.

Contact Information

Point of Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202

Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202

Extents

Geographic Area 1

-77.1877° W, -76.695° E, 39.3698° N, 39.1023° S

Time Frame 1
2011-03-27 - 2011-03-28

Flight dates for lidar acquisition

Item Identification

Title: 2011 Howard County, Maryland Lidar
Short Name: 2011 Howard Maryland
Status: Completed
Abstract:

Howard County, MD contracted to collect detailed ground elevation data from Aerial LiDAR Sensors for approximately 256 Square Miles as part of the CATSII, 2011 Maryland Statewide Orthophoto Project. The LiDAR data was collected in accordance with FEMA Procedure Memorandum No. 61 - Standards for LiDAR and Other High Quality Digital Topography, for which LiDAR data is collected in accordance with the USGS LiDAR Guidelines and Base Specifications, v13, dated February 22, 2010, for the National Geospatial Program, except as noted in FEMA's Procedure Memorandum No. 61.
Purpose:

To acquire detailed surface elevation data for use in conservation planning, design, research, floodplain mapping, dam safety assessments, and hydrologic modeling. LAS and bare earth DEM data products are suitable for 2 foot contour generation.
Supplemental Information:

LiDAR points in LAS 1.2 format

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
ISO 19115 Topic Category
elevation
UNCONTROLLED
None erosion

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MARYLAND
Global Change Master Directory (GCMD) Location Keywords
VERTICAL LOCATION > LAND SURFACE

Instrument Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Instrument Keywords
LIDAR > Light Detection and Ranging

Platform Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Platform Keywords
Airplane > Airplane

Physical Location

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

Data Set Information

Data Set Scope Code: Data Set
Data Set Type: Elevation
Maintenance Frequency: Unknown
Data Presentation Form: raster digital data
Entity Attribute Overview:

Point classifications:

1 = unclassified

2 = ground

7 = low noise

9 = water

11 = withheld

12 = overlap
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
Data Set Credit: Created by Surdex through Contract with USACE St Louis, Surdex Corporation

Support Roles

Data Steward

CC ID: 748128
Date Effective From: 2018
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: 748129
Date Effective From: 2018
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: 748130
Date Effective From: 2018
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: 748131
Date Effective From: 2018
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: 1140958
W° Bound: -77.1877
E° Bound: -76.695
N° Bound: 39.3698
S° Bound: 39.1023

Extent Group 1 / Time Frame 1

CC ID: 1140957
Time Frame Type: Range
Start: 2011-03-27
End: 2011-03-28
Description:

Flight dates for lidar acquisition

Spatial Information

Spatial Resolution

Horizontal Distance: 1.4 Meter
Level of Detail Description:

The nominal point spacing was 1.4 meters. The points are irregularly spaced.

Spatial Representation

Representations Used

Vector: Yes

Access Information

Security Class: Unclassified
Data Access Procedure:

Data is available online for custom downloads
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.

Distribution Information

Distribution 1

CC ID: 748134
Start Date: 2018
End Date: Present
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8495
Distributor:
File Name: Customized Download
Description:

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

Distribution 2

CC ID: 748135
Start Date: 2018
End Date: Present
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8495/index.html
Distributor:
File Name: Bulk Download
Description:

Bulk download of data files in LAZ format, geographic coordinates, orthometric heights.
File Type (Deprecated): LAZ
Distribution Format: LAS/LAZ - LASer
Compression: Zip

URLs

URL 1

CC ID: 748123
URL: https://coast.noaa.gov/
Name: NOAA's Office for Coastal Management (OCM) website
URL Type:
Online Resource
File Resource Format: HTML
Description:

Information on the NOAA Office for Coastal Management (OCM)

URL 2

CC ID: 748124
URL: https://coast.noaa.gov/dataviewer/
Name: NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV)
URL Type:
Online Resource
File Resource Format: HTML
Description:

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.

URL 3

CC ID: 748125
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8495/supplemental/2011_Howard_area.kmz
Name: Browse graphic
URL Type:
Browse Graphic
File Resource Format: KML
Description:

This graphic displays the footprint for this lidar data set.

URL 4

CC ID: 748126
URL: http://imap.maryland.gov/Pages/lidar.aspx
Name: Original data site
URL Type:
Online Resource
Description:

Link to the original source of data.

Technical Environment

Description:

Microsoft Windows Vista Version 6.1 (Build 7600) ; ESRI ArcCatalog 9.3.1.4000

Data Quality

Vertical Positional Accuracy:

Flown to meet a specification of 18.5 cm RMSEz

Lineage

Process Steps

Process Step 1

CC ID: 1140953
Description:

Acquisition with ALS50 at 2500 meters AGL, 34 deg FOV, 96,800 pulse rate, 39.8 Hz, 20.85% sidelap, 1.4 meter NPS.

All flights have calibration lines flown at beginning and end of flight over GPS basestation at local airport. 2 basestations are run at all times and placed so flight baseline never exceeds 25 miles.

The bare-earth Lidar data was processed using FEMA Procedure Memorandum No. 61 & USGS (NGP) Base Lidar Specifications V13. Vertical Accuracy of the LiDAR data was assessed and reported in accordance with National Digital Elevation Program (NDEP)/American Society for Photogrammetry and Remote Sensing (ASPRS) guidelines for fundamental vertical accuracy (FVA) <=36.3cm ACCz, 95% (18.5cm RMSEz), supplemental vertical accuracy (SVA) <=36.5 cm, 95th Percentile, and consolidated vertical accuracy (CVA) <=36.3cm 95th Percentile.

Process Step 2

CC ID: 1140954
Description:

LiDAR lines processed to ground and manually cleaned and reviewed in TerraScan; DEM products produced in TerraScan

Process Step 3

CC ID: 1140955
Description:

Data were obtained from the Maryland iMAP (imap.maryland.gov) in October 2017. Data were processed to reproject from Maryland State Plane in feet to geographic coordinates. Vertical coordinates were transformed from NAVD88 feet to NAD83 ellipsoid heights in meters using the GEOID09 model. Data were then ingested into the Digital Coast Data Access Viewer for distribution.
Process Contact: Office for Coastal Management (OCM)

Catalog Details

Catalog Item ID: 52243
GUID: gov.noaa.nmfs.inport:52243
Metadata Record Created By: Kirk Waters
Metadata Record Created: 2018-03-23 09:20+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-10-17 16:12+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