2011 Howard County, Maryland Lidar
Data Set (DS) | OCM Partners (OCMP)GUID: gov.noaa.nmfs.inport:52243 | Updated: October 17, 2023 | Published / External
Summary
Short Citation
OCM Partners, 2024: 2011 Howard County, Maryland Lidar, https://www.fisheries.noaa.gov/inport/item/52243.
Full Citation Examples
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.
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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions.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.
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
https://coast.noaa.gov
Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov
Extents
-77.1877° W,
-76.695° E,
39.3698° N,
39.1023° S
2011-03-27 - 2011-03-28
Flight dates for lidar acquisition
Item Identification
Title: | 2011 Howard County, Maryland Lidar |
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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 |
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City: | Charleston |
State/Province: | SC |
Data Set Information
Data Set Scope Code: | Data Set |
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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
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
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
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
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 |
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Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -77.1877 | |
---|---|---|
E° Bound: | -76.695 | |
N° Bound: | 39.3698 | |
S° Bound: | 39.1023 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 2011-03-27 |
End: | 2011-03-28 |
Description: |
Flight dates for lidar acquisition |
Spatial Information
Spatial Resolution
Horizontal Distance: | 1.4 Meter |
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Level of Detail Description: |
The nominal point spacing was 1.4 meters. The points are irregularly spaced. |
Spatial Representation
Representations Used
Vector: | Yes |
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Access Information
Security Class: | Unclassified |
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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
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
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
URL: | https://coast.noaa.gov/ |
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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
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
URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8495/supplemental/2011_Howard_area.kmz |
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Name: | Browse graphic |
URL Type: |
Browse Graphic
|
File Resource Format: | KML |
Description: |
This graphic displays the footprint for this lidar data set. |
URL 4
URL: | http://imap.maryland.gov/Pages/lidar.aspx |
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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 |
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Data Quality
Vertical Positional Accuracy: |
Flown to meet a specification of 18.5 cm RMSEz |
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Lineage
Process Steps
Process Step 1
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. |
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Process Step 2
Description: |
LiDAR lines processed to ground and manually cleaned and reviewed in TerraScan; DEM products produced in TerraScan |
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Process Step 3
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. |
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Process Contact: | Office for Coastal Management (OCM) |
Catalog Details
Catalog Item ID: | 52243 |
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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 |