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

2019 FEMA Lidar DEM: MI 19 County

Data Set (DS)  |  OCM Partners (OCMP)
GUID: gov.noaa.nmfs.inport:79706  |  Updated: May 6, 2026  |  Published / External 
Summary
Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Spatial Info
Access Info
Distribution Info
URLs
Data Quality
Data Management
Lineage
Related Items
Catalog Details

Summary

Short Citation
OCM Partners, 2026: 2019 FEMA Lidar DEM: MI 19 County, https://www.fisheries.noaa.gov/inport/item/79706.
Full Citation Examples

Abstract

Product: These are Digital Elevation Model (DEM) data as part of the required deliverables for the lidar project. Class 2 (Ground) lidar points in conjunction with the hydro breaklines were used to create a 2 foot hydro-flattened Raster DEM. The data collection was funded by NRCS and USGS and the State of Michigan was in charge of collection. Nineteen counties (some with only partial coverage) were collected in total. Data were collected for the State of Michigan and the Michigan Statewide Authoritative Imagery & Lidar Program (MISAIL) by Sanborn Map Company, Inc.

Geographic Extent:

Counties included: Alcona, Alpena, Antrim, Cheboygan, Chippewa, Crawford, Dickinson, Gogebic, Houghton, Iron, Kalkaska, Keweenaw, Luce, Menominee, Montmorency, Ontonagon, Oscoda, Ostego, and Schoolcraft.

Dataset Description: The FEMA 19 County, Michigan 2019 Lidar project called for the Planning, Acquisition, processing and derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 0.7 meter. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base Lidar Specification, Version 1.3. The data was developed based on a horizontal projection/datum of NAD83 (2011), State Plane Coordinate System, international feet and vertical datum of NAVD88 (GEOID12B), international feet. Lidar data was delivered as processed Classified LAS 1.4 files, formatted to individual 2500 ft x 2500 ft tiles, as tiled Intensity Imagery, and as tiled bare earth DEMs; all tiled to the same 2500 ft x 2500 ft schema.

Ground Conditions: Lidar was collected in spring 2019, while no snow was on the ground and rivers were at or below normal levels. In order to post process the lidar data to meet task order specifications and meet ASPRS vertical accuracy guidelines, Sanborn Map Company, Inc. established ground control points that were used to calibrate the lidar to known ground locations established throughout the project area. Additional independent accuracy check points in Open Terrain/Bare-Earth and Urban landcovers, in Grass, Brush and Trees categories were used to assess the vertical accuracy of the data. These check points were not used to calibrate or post process the data.

This metadata record supports the data entry in the NOAA Digital Coast Data Access Viewer (DAV). For this data set, the DAV is leveraging the GeoTIFF files hosted by USGS on Amazon Web Services.

Purpose

To acquire detailed surface elevation data for use in conservation planning, design, research, floodplain mapping, dam safety assessments and elevation modeling, etc. Classified LAS files are used to show the manually reviewed bare earth surface. This allows the user to create Intensity Images, Breaklines and Raster DEM. The purpose of these lidar data was to produce high accuracy 3D hydro-flattened Digital Elevation Model (DEM) with a 2 ft cell size. These lidar point cloud data were used to create intensity images, 3D breaklines, and hydro-flattened DEMs as necessary.

Data Access & Downloads

  • Customized Download

    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.

  • Bulk Download
    GeoTIFF

    Bulk download of data files in GeoTIFF format, based on a horizontal datum/projection of NAD83 (2011) State Plane Michigan Central (FIPS 2112) and North (FIPS 2111) International Feet, and a vertical datum of NAVD88 (GEOID12B) in International feet.

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, DIGITAL ELEVATION/TERRAIN MODEL (DEM), EARTH SCIENCE, elevation, TERRAIN ELEVATION

URLs

  • Lidar Reports

    Lidar reports are available by county from the USGS rockyweb https site.

  • USGS Additional Info

    Link to the reports, breaklines, metadata, and spatial metadata.

  • NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV)

    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.

  • USGS Project Report

    Link to the USGS Project Report that provides information about the project, vertical accuracy results, the point classes and sensors used.

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

Geographic Area 1

-90.427196° W, -83.190516° E, 47.480399° N, 44.502672° S

Time Frame 1
2020-05-13 - 2020-05-21

Dates of collection for Luce and Schoolcraft counties.

Time Frame 2
2020-04-24 - 2020-04-28

Dates of collection for Alpena and Montmorency counties.

Time Frame 3
2019-05-07 - 2020-04-27

Dates of collection for Antrim and Ostego counties.

Time Frame 4
2019-05-17 - 2019-10-23
Time Frame 5
2020-05-02 - 2020-06-28

Dates of collection for Dickinson, Iron, and Menominee counties.

Time Frame 6
2020-05-20 - 2020-05-21

Additional dates of collection for Houghton, Keweenaw, and Ontonagon Counties

Time Frame 7
2019-05-26 - 2019-06-08

Dates of collection for Houghton, Keweenaw, and Ontonagon Counties

Item Identification

Title: 2019 FEMA Lidar DEM: MI 19 County
Status: Completed
Publication Date: 2019-10-23
Abstract:

Product: These are Digital Elevation Model (DEM) data as part of the required deliverables for the lidar project. Class 2 (Ground) lidar points in conjunction with the hydro breaklines were used to create a 2 foot hydro-flattened Raster DEM. The data collection was funded by NRCS and USGS and the State of Michigan was in charge of collection. Nineteen counties (some with only partial coverage) were collected in total. Data were collected for the State of Michigan and the Michigan Statewide Authoritative Imagery & Lidar Program (MISAIL) by Sanborn Map Company, Inc.

Geographic Extent:

Counties included: Alcona, Alpena, Antrim, Cheboygan, Chippewa, Crawford, Dickinson, Gogebic, Houghton, Iron, Kalkaska, Keweenaw, Luce, Menominee, Montmorency, Ontonagon, Oscoda, Ostego, and Schoolcraft.

Dataset Description: The FEMA 19 County, Michigan 2019 Lidar project called for the Planning, Acquisition, processing and derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 0.7 meter. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base Lidar Specification, Version 1.3. The data was developed based on a horizontal projection/datum of NAD83 (2011), State Plane Coordinate System, international feet and vertical datum of NAVD88 (GEOID12B), international feet. Lidar data was delivered as processed Classified LAS 1.4 files, formatted to individual 2500 ft x 2500 ft tiles, as tiled Intensity Imagery, and as tiled bare earth DEMs; all tiled to the same 2500 ft x 2500 ft schema.

Ground Conditions: Lidar was collected in spring 2019, while no snow was on the ground and rivers were at or below normal levels. In order to post process the lidar data to meet task order specifications and meet ASPRS vertical accuracy guidelines, Sanborn Map Company, Inc. established ground control points that were used to calibrate the lidar to known ground locations established throughout the project area. Additional independent accuracy check points in Open Terrain/Bare-Earth and Urban landcovers, in Grass, Brush and Trees categories were used to assess the vertical accuracy of the data. These check points were not used to calibrate or post process the data.

This metadata record supports the data entry in the NOAA Digital Coast Data Access Viewer (DAV). For this data set, the DAV is leveraging the GeoTIFF files hosted by USGS on Amazon Web Services.
Purpose:

To acquire detailed surface elevation data for use in conservation planning, design, research, floodplain mapping, dam safety assessments and elevation modeling, etc. Classified LAS files are used to show the manually reviewed bare earth surface. This allows the user to create Intensity Images, Breaklines and Raster DEM. The purpose of these lidar data was to produce high accuracy 3D hydro-flattened Digital Elevation Model (DEM) with a 2 ft cell size. These lidar point cloud data were used to create intensity images, 3D breaklines, and hydro-flattened DEMs as necessary.
Supplemental Information:

Raster File Type = TIFF Bit Depth/Pixel Type = 32-bit float Raster Cell Size = 2 Foot Interpolation or Resampling Technique = Triangulated Irregular Network Required Vertical Accuracy = 19.6 cm NVA

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE
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 > MICHIGAN
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: None Planned
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: FEMA, USGS, State of Michigan, Sanborn Map Company, Inc.

Support Roles

Data Steward

CC ID: 1479187
Date Effective From: 2026
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: 1479186
Date Effective From: 2026
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: 1479190
Date Effective From: 2021-01-01
Date Effective To:
Contact (Organization): U.S. Geological Survey
Address: 12201 Sunrise Valley Drive
Reston, VA 20191
USA
URL: USGS Home

Metadata Contact

CC ID: 1479188
Date Effective From: 2026
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: 1479189
Date Effective From: 2026
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: 1479215
W° Bound: -90.427196
E° Bound: -83.190516
N° Bound: 47.480399
S° Bound: 44.502672

Extent Group 1 / Time Frame 1

CC ID: 1479208
Time Frame Type: Range
Start: 2020-05-13
End: 2020-05-21
Description:

Dates of collection for Luce and Schoolcraft counties.

Extent Group 1 / Time Frame 2

CC ID: 1479209
Time Frame Type: Range
Start: 2020-04-24
End: 2020-04-28
Description:

Dates of collection for Alpena and Montmorency counties.

Extent Group 1 / Time Frame 3

CC ID: 1479210
Time Frame Type: Range
Start: 2019-05-07
End: 2020-04-27
Description:

Dates of collection for Antrim and Ostego counties.

Extent Group 1 / Time Frame 4

CC ID: 1479211
Time Frame Type: Range
Start: 2019-05-17
End: 2019-10-23

Extent Group 1 / Time Frame 5

CC ID: 1479212
Time Frame Type: Range
Start: 2020-05-02
End: 2020-06-28
Description:

Dates of collection for Dickinson, Iron, and Menominee counties.

Extent Group 1 / Time Frame 6

CC ID: 1479213
Time Frame Type: Range
Start: 2020-05-20
End: 2020-05-21
Description:

Additional dates of collection for Houghton, Keweenaw, and Ontonagon Counties

Extent Group 1 / Time Frame 7

CC ID: 1479214
Time Frame Type: Range
Start: 2019-05-26
End: 2019-06-08
Description:

Dates of collection for Houghton, Keweenaw, and Ontonagon Counties

Spatial Information

Spatial Resolution

Horizontal Distance: 2.0 Foot

Spatial Representation

Representations Used

Grid: Yes
Vector: No
Text / Table: No
TIN: No
Stereo Model: No
Video: No

Reference Systems

Reference System 1

CC ID: 1479696

Coordinate Reference System
CRS Type: Projected
EPSG Code: EPSG:6494
EPSG Name: NAD83(2011) / Michigan Central (ft)
▾ See Full Coordinate Reference System Information

Reference System 2

CC ID: 1479697

Coordinate Reference System
CRS Type: Projected
EPSG Code: EPSG:6496
EPSG Name: NAD83(2011) / Michigan North (ft)
▾ See Full Coordinate Reference System Information

Reference System 3

CC ID: 1479217

Coordinate Reference System
CRS Type: Vertical
EPSG Code: EPSG:8228
EPSG Name: NAVD88 height (ft)
▾ See Full Coordinate Reference System Information

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

CC ID: 1479191
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=14130/details/14130
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2026 - 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.
File Type (Deprecated): Zip
Compression: Zip

Distribution 2

CC ID: 1479192
Download URL: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/
Distributor: U.S. Geological Survey (2021-01-01 - Present)
File Name: Bulk Download
Description:

Bulk download of data files in GeoTIFF format, based on a horizontal datum/projection of NAD83 (2011) State Plane Michigan Central (FIPS 2112) and North (FIPS 2111) International Feet, and a vertical datum of NAVD88 (GEOID12B) in International feet.

File Type (Deprecated): LAZ
Distribution Format: GeoTIFF

URLs

URL 1

CC ID: 1479193
URL: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/metadata/MI_FEMA_2019_C19/
Name: Lidar Reports
URL Type:
Online Resource
File Resource Format: pdf
Description:

Lidar reports are available by county from the USGS rockyweb https site.

URL 2

CC ID: 1479194
URL: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/metadata/MI_FEMA_2019_C19/
Name: USGS Additional Info
URL Type:
Online Resource
Description:

Link to the reports, breaklines, metadata, and spatial metadata.

URL 3

CC ID: 1479195
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 4

CC ID: 1479698
URL: https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/MI_FEMA_2019_C19/USGS_MI_FEMA_2019_C19_Project_Report.pdf
Name: USGS Project Report
File Resource Format: pdf
Description:

Link to the USGS Project Report that provides information about the project, vertical accuracy results, the point classes and sensors used.

Data Quality

Vertical Positional Accuracy:

This data set was produced to meet ASPRS Positional Accuracy Standard for Digital Geospatial Data (2014) for a 10-cm RMSEz Vertical Accuracy Class.

USGS Determined DEM Vertical Accuracy:

Non-Vegetated Vertical Accuracy (NVA) = 5.53 cm RMSE

Vegetated Vertical Accuracy (VVA) = 14.05 cm at 95th Percentile
Completeness Report:

Datasets contain complete coverage of tiles. No points have been removed or excluded. A visual qualitative assessment was performed to ensure data completeness. There are no void areas or missing data. The raw point cloud is of good quality and data passes Non-Vegetated Vertical Accuracy specifications.
Conceptual Consistency:

Data covers the entire area specified for this project.

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-CO
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?:

Data is backed up to tape and to cloud storage.

Lineage

Lineage Statement:

The NOAA Office for Coastal Management (OCM) ingested references to the USGS GeoTIFF files that are hosted on Amazon Web Services (AWS), into the Digital Coast Data Access Viewer (DAV). The DAV accesses the raster data as it resides on AWS.

Sources

USGS AWS GeoTIFF Files - MI_FEMA_Alcona_Oscoda_2019

CC ID: 1479551
Contact Role Type: Publisher
Contact Type: Organization
Contact Name: USGS
Citation URL: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Alcona_Oscoda_2019/TIFF/
Citation URL Name: USGS AWS GeoTIFF Files for MI_FEMA_Alcona_Oscoda_2019

USGS AWS GeoTIFF Files - MI_FEMA_Alpena_Montmorency_2019

CC ID: 1479552
Contact Role Type: Publisher
Contact Type: Organization
Contact Name: USGS
Citation URL: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Alpena_Montmorency_2019/TIFF/
Citation URL Name: USGS AWS GeoTIFF Files for MI_FEMA_Alpena_Montmorency_2019

USGS AWS GeoTIFF Files - MI_FEMA_Antrim_Ostego_2019

CC ID: 1479553
Contact Role Type: Publisher
Contact Type: Organization
Contact Name: USGS
Citation URL: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Antrim_Otsego_2019/TIFF/
Citation URL Name: USGS AWS GeoTIFF Files for MI_FEMA_Antrim_Ostego_2019

USGS AWS GeoTIFF Files - MI_FEMA_Cheboygan_2019

CC ID: 1479554
Contact Role Type: Publisher
Contact Type: Organization
Contact Name: USGS
Citation URL: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Cheboygan_2019/TIFF/
Citation URL Name: USGS AWS GeoTIFF Files for MI_FEMA_Cheboygan_2019

USGS AWS GeoTIFF Files - MI_FEMA_Chippewa_2019

CC ID: 1479555
Contact Role Type: Publisher
Contact Type: Organization
Contact Name: USGS
Citation URL: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Chippewa_2019/TIFF/
Citation URL Name: USGS AWS GeoTIFF Files for MI_FEMA_Chippewa_2019

USGS AWS GeoTIFF Files - MI_FEMA_Crawford_Kalkaska_2019

CC ID: 1479556
Contact Role Type: Publisher
Contact Type: Organization
Contact Name: USGS
Citation URL: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Crawford_Kalkaska_2019/TIFF/
Citation URL Name: USGS AWS GeoTIFF Files for MI_FEMA_Crawford_Kalkaska_2019

USGS AWS GeoTIFF Files - MI_FEMA_Dickinson_Iron_Menominee_2019

CC ID: 1479557
Contact Role Type: Publisher
Contact Type: Organization
Contact Name: USGS
Citation URL: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Dickinson_Iron_Menominee_2019/TIFF/
Citation URL Name: USGS AWS GeoTIFF Files for MI_FEMA_Dickinson_Iron_Menominee_2019

USGS AWS GeoTIFF Files - MI_FEMA_Gogebic_2019

CC ID: 1479558
Contact Role Type: Publisher
Contact Type: Organization
Contact Name: USGS
Citation URL: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Gogebic_2019/TIFF/
Citation URL Name: USGS AWS GeoTIFF Files for MI_FEMA_Gogebic_2019

USGS AWS GeoTIFF Files - MI_FEMA_Houghton_Keweenaw_Ontonagon_2019

CC ID: 1479559
Contact Role Type: Publisher
Contact Type: Organization
Contact Name: USGS
Citation URL: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Houghton_Keweenaw_Ontonagon_2019/TIFF/
Citation URL Name: USGS AWS GeoTIFF Files for MI_FEMA_Houghton_Keweenaw_Ontonagon_2019

USGS AWS GeoTIFF Files - MI_FEMA_Luce_Schoolcraft_2019

CC ID: 1479560
Contact Role Type: Publisher
Contact Type: Organization
Contact Name: USGS
Citation URL: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Luce_Schoolcraft_2019/TIFF/
Citation URL Name: USGS AWS GeoTIFF Files for MI_FEMA_Luce_Schoolcraft_2019

Process Steps

Process Step 1

CC ID: 1479202
Description:

The following steps describe the Raw Data Processing and Calibration process: 1) Technicians processed the raw data to LAS format flight lines using the ABGNSS/IMU solution. 2) Technicians use TerraSolid TerraMatch to calculate initial calibration adjustment angles by mission and/or block. This is accomplished by identifying ground and above ground feature observations between flight-lines and calculating the offsets. The technician then analyzed the results and made any necessary additional adjustment until it is acceptable. 3) Once the angle calculation was completed the adjusted settings were applied to all of the flight-lines of the mission and/or block and checked for consistency. The technicians utilized commercial and proprietary software packages to analyze how well flight-line overlaps match and adjusted as necessary until the results met the project specifications. 4) The technicians checked and corrected the vertical misalignment of all flight-lines and also the matching between data and ground truth. The relative accuracy was less than or equal to 6 cm RMSEz within individual swaths and less than or equal to 8 cm RMSDz or within swath overlap (between adjacent swaths). 5) The technicians ran a final vertical accuracy check of the calibrated point cloud against the surveyed check points after the z correction to ensure the requirement of NVA = 19.6 cm 95% Confidence Level (Required Accuracy) was met. Point classification was performed according to USGS Lidar Base Specification 1.3, and breaklines were collected for water features. Bare earth DEMs were exported from the classified point cloud using collected breaklines for hydroflattening.
Process Date/Time: 2019-01-01 00:00:00

Process Step 2

CC ID: 1479203
Description:

LAS Point Classification: The point classification is performed as described below. The bare-earth surface is manually reviewed to ensure correct classification on the Class 2 (Ground) points. After the bare-earth surface is edited and QC'd, it is then used to generate all hydro-breaklines through heads-up digitization. All ground (ASPRS Class 2) lidar data inside of the Lake Pond and River Pond hydro flattening breaklines were then classified to water (ASPRS Class 9) using LP360 functionality. A buffer of 2 feet was also used around each hydro-flattened feature to classify these ground (ASPRS Class 2) points to Ignored ground (ASPRS Class 20). All Lake Pond Island and River Stream Island features were checked to ensure that the ground (ASPRS Class 2) points were reclassified to the correct classification after the automated classification was completed. All overlap data was processed through automated functionality provided by TerraScan to classify the overlapping flight-line data to approved classes by USGS. The overlap data was classified using standard LAS overlap bit. These classes were created through automated processes only and were not verified for classification accuracy. All data was manually reviewed and any remaining artifacts removed using functionality provided by TerraScan and TerraModeler. Global Mapper is used as a final check of the bare-earth dataset. GeoCue was then used to create the deliverable industry-standard LAS files for the Classified Point Cloud Data. LAStools, LP360 and TerraScan software was used to perform statistical analysis of the classes in the LAS files, on a per tile level to verify classification metrics and full LAS header information.
Process Date/Time: 2019-06-29 00:00:00

Process Step 3

CC ID: 1479561
Description:

Hydro-Flattened Bare-Earth DEM Process: Class 2 (Ground) lidar points in conjunction with the hydro breaklines were used to create a 2 foot hydro-flattened Raster DEM. Using automated scripting routines within LP360, a GeoTIFF file was created for each tile. Each surface is reviewed using Global Mapper to check for any surface anomalies or incorrect elevations found within the surface.
Process Date/Time: 2020-10-13 00:00:00

Process Step 4

CC ID: 1479562
Description:

The NOAA Office for Coastal Management (OCM) created references to the USGS GeoTIFF files that were ingested into the NOAA Digital Coast Data Access Viewer (DAV). No changes were made to the data. The DAV will access the raster data as it resides on Amazon Web Services (AWS).

These are the GeoTIFF files that are being accessed:

https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Alcona_Oscoda_2019/TIFF/

https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Alpena_Montmorency_2019/TIFF/

https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Antrim_Otsego_2019/TIFF/

https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Cheboygan_2019/TIFF/

https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Chippewa_2019/TIFF/

https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Crawford_Kalkaska_2019/TIFF/

https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Dickinson_Iron_Menominee_2019/TIFF/

https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Gogebic_2019/TIFF/

https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Houghton_Keweenaw_Ontonagon_2019/TIFF/

https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/OPR/Projects/MI_FEMA_2019_C19/MI_FEMA_Luce_Schoolcraft_2019/TIFF/
Process Date/Time: 2026-05-06 00:00:00
Process Contact: NOAA Office for Coastal Management (NOAA/OCM)
Email Address: coastal.info@noaa.gov
Phone (Voice): (843) 740-1202

Related Items

Item Type Relationship Type Title
Data Set (DS) Cross Reference 2019 FEMA Lidar: 19 County MI

Catalog Details

Catalog Item ID: 79706
GUID: gov.noaa.nmfs.inport:79706
Metadata Record Created By: Rebecca Mataosky
Metadata Record Created: 2026-05-06 17:24+0000
Metadata Record Last Modified By: Rebecca Mataosky
Metadata Record Last Modified: 2026-05-06 20:40+0000
Metadata Record Published: 2026-05-06
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