2024 Great Bay NERR UAS Lidar DEM: New Hampshire Salt Marshes
Data Set (DS) | OCM Partners (OCMP)GUID: gov.noaa.nmfs.inport:73527 | Updated: September 26, 2024 | Published / External
Summary
Short Citation
OCM Partners, 2024: 2024 Great Bay NERR UAS Lidar DEM: New Hampshire Salt Marshes, https://www.fisheries.noaa.gov/inport/item/73527.
Full Citation Examples
Original Data Collection:
Lidar was captured over a two-day period (05/21-05/22/2024) using a Riegl VUX-1 UAV sensor at an Above Ground Level (AGL) altitude of 115 m, and with a minimum 50% sidelap. The lidar data were collected under leaf-on conditions. A 1-ft Digital Elevation Model (DEM) was created in Blue Marble GlobalMapper v23.1 using a minimum value binning (bin size = 6) grid method, and output as a 32-bit floating-point GeoTIFF formatted raster. No breaklines or hydroflattening processes were developed or applied to the DEM.
In addition to these bare earth Digital Elevation Model (DEM) data, the lidar point data that these DEM data were created from, are also available. These data are available for download at the link provided in the URL section of this metadata record.
Distribution Information
-
Not Applicable
Create custom data files by choosing data area, map projection, file format, etc. A new metadata will be produced to reflect your request using this record as a base.
-
GeoTIFF
Bulk download of data files in the original coordinate system.
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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions.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, DIGITAL ELEVATION/TERRAIN MODEL (DEM), 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
-70.734° W,
-70.719° E,
43.04° N,
43.03° S
2024-05-21 - 2024-05-22
Dates of collection for the Odiorne dataset
Item Identification
| Title: | 2024 Great Bay NERR UAS Lidar DEM: New Hampshire Salt Marshes |
|---|---|
| Status: | Completed |
| Creation Date: | 2024 |
| Publication Date: | 2024 |
| Abstract: |
Original Data Collection: Lidar was captured over a two-day period (05/21-05/22/2024) using a Riegl VUX-1 UAV sensor at an Above Ground Level (AGL) altitude of 115 m, and with a minimum 50% sidelap. The lidar data were collected under leaf-on conditions. A 1-ft Digital Elevation Model (DEM) was created in Blue Marble GlobalMapper v23.1 using a minimum value binning (bin size = 6) grid method, and output as a 32-bit floating-point GeoTIFF formatted raster. No breaklines or hydroflattening processes were developed or applied to the DEM. In addition to these bare earth Digital Elevation Model (DEM) data, the lidar point data that these DEM data were created from, are also available. These data are available for download at the link provided in the URL section of this metadata record. |
| Purpose: |
The purpose of these lidar data was to produce high accuracy 3D elevation products which will support various modeling, including modeling of the bare earth surface |
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 > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM)
|
| Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
|
| ISO 19115 Topic Category |
elevation
|
Spatial Keywords
| Thesaurus | Keyword |
|---|---|
| Global Change Master Directory (GCMD) Location Keywords |
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA
|
| Global Change Master Directory (GCMD) Location Keywords |
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW HAMPSHIRE
|
| 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 |
UAV > Unmanned Aerial Vehicle
|
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: | As Needed |
| Data Presentation Form: | Model (digital) |
| 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: | Great Bay NERR (National Estuarine Research Reserve) |
Support Roles
Data Steward
| Date Effective From: | 2024 |
|---|---|
| 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: | 2024 |
|---|---|
| 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: | 2024 |
|---|---|
| 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: | 2024 |
|---|---|
| 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
| W° Bound: | -70.734 | |
|---|---|---|
| E° Bound: | -70.719 | |
| N° Bound: | 43.04 | |
| S° Bound: | 43.03 |
Extent Group 1 / Time Frame 1
| Time Frame Type: | Range |
|---|---|
| Start: | 2024-05-21 |
| End: | 2024-05-22 |
| Description: |
Dates of collection for the Odiorne dataset |
Spatial Information
Spatial Representation
Representations Used
| Grid: | Yes |
|---|---|
| Vector: | No |
| Text / Table: | No |
| TIN: | No |
| Stereo Model: | No |
| Video: | No |
Reference Systems
Reference System 1
Coordinate Reference System |
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Reference System 2
Coordinate Reference System |
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Access Information
| Security Class: | Unclassified |
|---|---|
| Data Access Procedure: |
Data is available online for bulk and 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: | 2024-09-12 |
|---|---|
| End Date: | Present |
| Download URL: | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=10176/details/10176 |
| Distributor: | NOAA Office for Coastal Management (NOAA/OCM) (2024 - Present) |
| File Name: | Customized Download |
| Description: |
Create custom data files by choosing data area, map projection, file format, etc. A new metadata will be produced to reflect your request using this record as a base. |
| Distribution Format: | Not Applicable |
| Compression: | Zip |
Distribution 2
| Start Date: | 2024-09-12 |
|---|---|
| End Date: | Present |
| Download URL: | https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/NH_Grt_Bay_NERR_DEM_2024_10176/index.html |
| Distributor: | NOAA Office for Coastal Management (NOAA/OCM) (2024 - Present) |
| File Name: | Bulk Download |
| Description: |
Bulk download of data files in the original coordinate system. |
| Distribution Format: | GeoTIFF |
URLs
URL 1
| 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 2
| URL: | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=10175/details/10175 |
|---|---|
| Name: | Custom Point Download |
| URL Type: |
Online Resource
|
| File Resource Format: | Zip |
| Description: |
Link to custom download, from the Data Access Viewer (DAV), the lidar point data from which these raster Digital Elevation Model (DEM) data were created. |
URL 3
| URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/10175/supplemental/nh2024_grt_bay_10175.kmz |
|---|---|
| Name: | Browse Graphic |
| URL Type: |
Browse Graphic
|
| File Resource Format: | kmz |
| Description: |
This kmz shows the lidar coverage for the 2024 UAS lidar acquisition of New Hampshire salt marshes. |
Technical Environment
| Description: |
Microsoft Windows 7 Enterprise Service Pack 1; ESRI ArcCatalog 10.3. |
|---|
Data Quality
| Vertical Positional Accuracy: |
Odiorne This data set was tested as required by ASPRS Positional Accuracy Standards for Digital Geospatial Data, Edition 2 (2023). Although the Standards call for a minimum of thirty (30) checkpoints, this test was performed using ONLY 10 checkpoints. This data set was produced to meet a 5 cm RMSEz vertical positional accuracy class. The average vertical positional variance of all ground control points and checkpoints was 1.22 cm. The lidar was fitted to 10 ground control points, and an additional 10 checkpoints were used to correlate to these ground control points with a RMSEz = 0.98 cm. Therefore, this data set is assumed to meet the stated 5 cm RMSEz vertical positional accuracy class. |
|---|
Data Management
| Have Resources for Management of these Data Been Identified?: | Yes |
|---|---|
| Approximate Percentage of Budget for these Data Devoted to Data Management: | Unknown |
| Do these Data Comply with the Data Access Directive?: | Yes |
| Actual or Planned Long-Term Data Archive Location: | NCEI-NC |
| How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?: |
Data is backed up to cloud storage. |
Lineage
| Lineage Statement: |
The NOAA Office for Coastal Management (OCM) received the UAS lidar DEM data from the Great Bay NERR. NOAA OCM processed the data to make it available for custom downloads from the NOAA Digital Coast Data Access Viewer and for bulk downloads from AWS S3. |
|---|
Sources
New Hampshire Salt Marshes UAS Lidar DEM Data
| Contact Role Type: | Originator |
|---|---|
| Contact Type: | Organization |
| Contact Name: | Great Bay NERR |
Process Steps
Process Step 1
| Description: |
Lidar was captured over a two-day period (05/21-05/22/2024) using a Riegl VUX-1 UAV sensor at an Above Ground Level (AGL) altitude of 115 m, and with a minimum 50% sidelap. On each day, data acquisition occurred within plus or minus 1 hour of predicted low tides. Ground control was provided using a total of ten (10) Propeller Aeropoints distributed evenly across the site each day. Each Aeropoint had a minimum occupation time of 2 hours, and GCPs and checkpoints acquired have a RMSEz of 1.22 cm. For each day, 5 points were used as ground control points (GCPs) and 5 were withheld in processing for independent accuracy checkpoints. |
|---|---|
| Process Date/Time: | 2024-05-21 00:00:00 |
Process Step 2
| Description: |
Inertial processing was performed in NovAtel Inertial Explorer Xpress v9.0. Point cloud creation was conducted in Phoenix Lidar SpatialExplorer v7.0.1. The lidar was then processed through the Terrasolid Spatix v.024.002 software modules TerraScan and TerraMatch UAV for alignment, strip adjustment, and .laz output. Blue Marble GlobalMapper v23.1 was used to classify the .laz into the requested classes using automated and manual workflows. These data were classified as follows: Class 1 = Unclassified Class 2 = Ground Class 7 = Low Noise Finally a 1-ft Digital Elevation Model (DEM) was created in Blue Marble GlobalMapper v23.1 using a minimum value binning (bin size = 6) grid method, and output as a 32-bit floating-point GeoTIFF formatted raster. No breaklines or hydroflattening processes were developed or applied to the DEM. |
|---|
Process Step 3
| Description: |
The NOAA Office for Coastal Management (OCM) received 1 raster DEM file in GeoTiff format from the Great Bay NERR. The bare earth raster file was at a 1 foot grid spacing. The data were in NH State Plane NAD83 (2011), US survey feet coordinates and NAVD88 (Geoid18) elevations in US survey feet. OCM assigned the appropriate EPSG codes (Horiz - 6525, Vert - 6360) and copied the raster files to https for Digital Coast storage and provisioning purposes. |
|---|---|
| Process Date/Time: | 2024-09-17 00:00:00 |
| Process Contact: | Office for Coastal Management (OCM) |
Related Items
| Item Type | Relationship Type | Title |
|---|---|---|
| Data Set (DS) | Cross Reference |
2024 Great Bay NERR UAS Lidar: New Hampshire Salt Marshes |
Catalog Details
| Catalog Item ID: | 73527 |
|---|---|
| GUID: | gov.noaa.nmfs.inport:73527 |
| Metadata Record Created By: | Rebecca Mataosky |
| Metadata Record Created: | 2024-09-18 14:01+0000 |
| Metadata Record Last Modified By: | Rebecca Mataosky |
| Metadata Record Last Modified: | 2024-09-26 14:28+0000 |
| Metadata Record Published: | 2024-09-18 |
| Owner Org: | OCMP |
| Metadata Publication Status: | Published Externally |
| Do Not Publish?: | N |
| Metadata Last Review Date: | 2024-09-16 |
| Metadata Review Frequency: | 1 Year |
| Metadata Next Review Date: | 2025-09-16 |