2015 FEMA Lidar: Michigan - Part 2
OCM Partners
Data Set
(DS)
| ID: 67242
| Published / External
Created: 2022-05-13
|
Last Modified: 2023-10-17
Project (PRJ) | ID: 49401
ID: 67242
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | 2015 FEMA Lidar: Michigan - Part 2 |
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Short Name | mi2015_part2_m9501_metadata |
* Status | Completed |
Creation Date | 2020 |
Revision Date | |
• Publication Date | 2015 |
* » Abstract |
The State of Michigan (DTMB) contracted with Sanborn to provide LiDAR mapping services for 6 counties in the State of Michigan. These counties include Cass, Genesee, Kalamazoo, Lapeer, Shiawassee, and St, Joseph. This metadata record describes the three counties of Cass, Kalamazoo, and St. Joseph and the data entry in the NOAA Digital Coast Data Access Viewer (DAV). For this data set, the DAV is leveraging the Entwine Point Tiles (EPT) hosted by USGS on Amazon Web Services. Utilizing multi-return systems, Light Detection and Ranging (LiDAR) data in the form of 3-dimensional positions of a dense set of mass points was collected for the 6 counties in November and December of 2015. All systems consist of geodetic GPS positioning, orientation derived from high-end inertial sensors and highly-accurate lasers. The sensor is mounted inside an aircraft and emits rapid pulses of light, through an opening in the fuselage, that are used to determine distances between the plane and terrain below. LAS data products are suitable for 1 foot contour generation. USGS LiDAR Base Specification 1.2, QL2. 19.6 cm NVA. Cass County: data covers approximately 533 square miles Kalamazoo County: data covers approximately 608 square miles St. Joseph County: data covers approximately 552 square miles |
* Purpose |
The purpose of this data set is the acquisition and production of high resolution elevation data for the State of Michigan. This LiDAR operation was designed to create high resolution data sets that will establish an authoritative source for elevation information for the State of Michigan to create detailed surface elevation data for use in conservation planning, design, research, floodplain mapping, dam safety assessments, and hydrologic modeling. |
Notes | |
Other Citation Details | |
• Supplemental Information |
Project Projection, Datums and Units. Projection - State Plane Michigan South. Horizontal datum - North American Datum of 1983 (NAD83 (2011)). Vertical datum - North American Vertical Datum of 1988 (NAVD88) using the latest geoid (Geoid12a) for converting ellipsoidal heights to orthometric heights. Units - intl feet The following are the USGS lidar fields in JSON: {
"ldrinfo" : {
"ldrspec" : "USGS Lidar Base Specification 1.2, FEMA "Guidelines and Specifications for Flood Hazrad Mapping Partners".", "ldrsens" : "Leica ALS70", "ldrmaxnr" : "4", "ldrnps" : "0.65", "ldrdens" : "1.67", "ldradens" : "2.2", "ldranps" : "0.71", "ldrfltht" : "2250", "ldrfltsp" : "135", "ldrscana" : "32", "ldrscanr" : "64", "ldrpulsr" : "167", "ldrpulsd" : "10", "ldrpulsw" : "3", "ldrwavel" : "1064", "ldrmpia" : "1", "ldrbmdiv" : "0.3", "ldrswatw" : "1222", "ldrswato" : "30", "ldrcrs" : "NAD_1983_2011_State_Plane_Michigan_South_2113_Ft_Intl", "ldrgeoid" : "NGS Geoid12a" }, "ldraccur" : {
"ldrchacc" : "19.6", "rawnva" : "0.153", "rawnvan" : "75", "clsnva" : "0.130", "clsnvan" : "76", "clsvva" : "0.234", "clsvvan" : "59" }, "lasinfo" : {
"lasver" : "1.4", "lasprf" : "6", "laswheld" : "Withheld (ignore) points were identified in these files using class 10.", "lasolap" : "Swath "overage" points were identified in these files by classifying to class 11.", "lasintr" : "10", "lasclass" : {
"clascode" : "1", "clasitem" : "Unclassified" }, "lasclass" : {
"clascode" : "2", "clasitem" : "Bare-earth" }, "lasclass" : {
"clascode" : "7", "clasitem" : "All noise" }, "lasclass" : {
"clascode" : "9", "clasitem" : "Water" }, "lasclass" : {
"clascode" : "10", "clasitem" : "Ignored Ground (Breakline Proximity)" }, "lasclass" : {
"clascode" : "11", "clasitem" : "Withheld (overlap)" }, "lasclass" : {
"clascode" : "17", "clasitem" : "Bridges" }, "lasclass" : {
"clascode" : "18", "clasitem" : "Noise (high, manually identified, if needed)" } }} |
DOI (Digital Object Identifier) | |
DOI Registration Authority | |
DOI Issue Date |
Keywords
Theme Keywords
Thesaurus | Keyword |
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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 |
Temporal Keywords
Thesaurus | Keyword |
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* Spatial Keywords
Thesaurus | Keyword |
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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 |
MI | Cass County |
MI | Kalamazoo County |
MI | St. Joseph County |
Stratum Keywords
Thesaurus | Keyword |
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Instrument Keywords
Thesaurus | Keyword |
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Global Change Master Directory (GCMD) Instrument Keywords | LIDAR > Light Detection and Ranging |
Platform Keywords
Thesaurus | Keyword |
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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 |
• Country | |
• » Location Description |
Data Set Information
* Data Set Scope Code | Data Set |
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• Data Set Type | Elevation |
• Maintenance Frequency | Unknown |
Maintenance Note | |
» Data Presentation Form | Model (digital) |
• Entity Attribute Overview | |
Entity Attribute Detail Citation |
QL2 meeting USGS 1.2 specifications |
Entity Attribute Detail URL | |
Distribution Liability |
The State of Michigan Geographic Information Systems digital data have been tested and their documentation carefully reviewed. However, the State of Michigan and its representatives make no warranty or representation, either expressed or implied, with respect to the digital data and their documentation, their quality, performance, merchantability, or fitness for a particular purpose. The digital data are distributed on "as is" basis, and the user assumes all risk to their quality, the results obtained from their use, and the performance of the data. In no event will the State of Michigan or its representatives be liable for any direct, indirect, special, incidental or consequential damages resulting from and defect in the State of Michigan or in their documentation. This disclaimer of warranty is exclusive and in lieu of all others, oral or written, express or implied. No agent or employee is authorized to make any modification, extension, or addition to this warranty. 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 | State of Michigan (SOM) |
Support Roles
* » Support Role | Data Steward |
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* » Date Effective From | 2022 |
Date Effective To | |
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 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
* » Support Role | Distributor |
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* » Date Effective From | 2022 |
Date Effective To | |
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 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
* » Support Role | Distributor |
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* » Date Effective From | 2020 |
Date Effective To | |
Organization | U.S. Geological Survey |
Address |
12201 Sunrise Valley Drive Reston, VA 20191 USA |
Email Address | |
Phone | |
Fax | |
Mobile | |
URL | https://usgs.gov |
Business Hours | |
Contact Instructions |
* » Support Role | Metadata Contact |
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* » Date Effective From | 2022 |
Date Effective To | |
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 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
* » Support Role | Point of Contact |
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* » Date Effective From | 2022 |
Date Effective To | |
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 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
* » Support Role | |
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* » Date Effective From | |
Date Effective To | |
* » Contact | |
* Contact Instructions |
* » Support Role | |
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* » Date Effective From | |
Date Effective To | |
* » Contact | |
* Contact Instructions |
* » Support Role | |
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* » Date Effective From | |
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* » Contact | |
* Contact Instructions |
Extents
Currentness Reference | Ground Condition |
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Extent Group 1
Extent Description |
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Extent Group 1 / Geographic Area 1
* » W° Bound | -86.23389 |
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* » E° Bound | -85.285992 |
* » N° Bound | 42.428036 |
* » S° Bound | 41.751314 |
* » Description |
Extent Group 1 / Vertical Extent
EPSG Code | |
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Vertical Minimum | |
Vertical Maximum |
Extent Group 1 / Time Frame 1
* » Time Frame Type | Range |
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* » Start | 2015-11-16 |
End | 2015-11-20 |
Alternate Start As Of Info | |
Alternate End As Of Info | |
Description |
Dates of collection for Cass County. |
Extent Group 1 / Time Frame 2
* » Time Frame Type | Range |
---|---|
* » Start | 2015-11-20 |
End | 2015-12-04 |
Alternate Start As Of Info | |
Alternate End As Of Info | |
Description |
Dates of collection for St. Joseph County. |
Extent Group 1 / Time Frame 3
* » Time Frame Type | Range |
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* » Start | 2015-11-20 |
End | 2015-11-29 |
Alternate Start As Of Info | |
Alternate End As Of Info | |
Description |
Dates of collection for Kalamazoo County. |
Spatial Information
Spatial Resolution
Angular Distance | |
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Angular Distance Units | |
Horizontal Distance | |
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Vertical Distance | |
Vertical Distance Units | |
Equivalent Scale Denominator | |
Level of Detail Description |
Spatial Representation
Grid Representation Used? | No |
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Vector Representation Used? | Yes |
Text / Table Representation Used? | No |
TIN Representation Used? | No |
Stereo Model Representation Used? | No |
Video Representation Used? | No |
Grid Representation
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Vector Representation
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Point Object Present? | |
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Solid Object Present? | |
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Surface Object Present? | |
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Reference Systems
Reference System
EPSG Code | EPSG:3857 | ||||||||||||||||||||||||||||
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Reference System
EPSG Code | EPSG:5703 | ||||||||||||||||||||||||||||
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Reference System
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Access Information
Data License | |
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Data License URL | |
Data License Statement | |
* » Security Class | Unclassified |
* Security Classification System | |
Security Handling Description | |
• Data Access Policy | |
» 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. |
Metadata Access Constraints | |
Metadata Use Constraints |
Distribution Information
Start Date | 2022-05-13 |
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End Date | Present |
» Download URL | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9501/details/9501 |
Distributor | NOAA Office for Coastal Management (NOAA/OCM) (2022 - Present) |
File Name | Customized Download |
Description |
Create custom data files by choosing data area, product type, map projection, file format, datum, etc. A new metadata will be produced to reflect your request using this record as a base. Change to an orthometric vertical datum is one of the many options. |
File Date/Time | |
File Type (Deprecated) | Zip |
Distribution Format | |
File Size | |
Application Version | |
Compression | Zip |
Review Status |
Start Date | 2022-05-13 |
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End Date | Present |
» Download URL | https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/ |
Distributor | U.S. Geological Survey (2020 - Present) |
File Name | Bulk Download |
Description |
Bulk download of data files in LAZ format, MI State Plane South NAD83 (2011), international feet coordinates and a vertical datum of NAVD88 (GEOID12A), units in international feet. This url links to the USGS copy of the files, from which the Entwine Point Tile files originated. These have not been reviewed by OCM and the link is provided here for convenience. |
File Date/Time | |
File Type (Deprecated) | LAZ |
Distribution Format | LAS/LAZ - LASer |
File Size | |
Application Version | |
Compression | Zip |
Review Status |
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» Download URL | |
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» Download URL | |
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URLs
URL | https://coast.noaa.gov/dataviewer/ |
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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 | https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_MI_Cass_2015_LAS_2018/ept.json |
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Name | Entwine Point Tiles (EPT) for Cass County |
URL Type | Online Resource |
File Resource Format | json |
Description |
Entwine Point Tile (EPT) is a simple and flexible octree-based storage format for point cloud data. The data is organized in such a way that the data can be reasonably streamed over the internet, pulling only the points you need. EPT files can be queried to return a subset of the points that give you a representation of the area. As you zoom further in, you are requesting higher and higher densities. A dataset in EPT will contain a lot of files, however, the ept.json file describes all the rest. The EPT file can be used in Potree and QGIS to view the point cloud. |
URL | https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_MI_Kalamazoo_2015_LAS_2018/ept.json |
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Name | Entwine Point Tiles (EPT) for Kalamazoo County |
URL Type | Online Resource |
File Resource Format | json |
Description |
Entwine Point Tile (EPT) is a simple and flexible octree-based storage format for point cloud data. The data is organized in such a way that the data can be reasonably streamed over the internet, pulling only the points you need. EPT files can be queried to return a subset of the points that give you a representation of the area. As you zoom further in, you are requesting higher and higher densities. A dataset in EPT will contain a lot of files, however, the ept.json file describes all the rest. The EPT file can be used in Potree and QGIS to view the point cloud. |
URL | https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_MI_16Co_StJoseph_2015_LAS_2018/ept.json |
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Name | Entwine Point Tiles (EPT) for St. Joseph County |
URL Type | Online Resource |
File Resource Format | json |
Description |
Entwine Point Tile (EPT) is a simple and flexible octree-based storage format for point cloud data. The data is organized in such a way that the data can be reasonably streamed over the internet, pulling only the points you need. EPT files can be queried to return a subset of the points that give you a representation of the area. As you zoom further in, you are requesting higher and higher densities. A dataset in EPT will contain a lot of files, however, the ept.json file describes all the rest. The EPT file can be used in Potree and QGIS to view the point cloud. |
URL | https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/metadata/MI_16CountiesFEMA2015_C16/ |
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Name | USGS Additional Info |
URL Type | Online Resource |
File Resource Format | |
Description |
Link to the additional information available for this data set from the USGS. This information includes reports, tile index shapefiles, and hydro breaklines. |
URL | https://usgs.entwine.io/data/view.html?r=[%22https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_MI_Cass_2015_LAS_2018/ept.json%22,%22https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_MI_Kalamazoo_2015_LAS_2018/ept.json%22,%22https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_MI_16Co_StJoseph_2015_LAS_2018/ept.json%22] |
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Name | Potree 3D View |
URL Type | Online Resource |
File Resource Format | |
Description |
Link to view the point cloud (using the Entwine Point Tile (EPT) format) in the 3D Potree viewer. |
URL | |
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URL | |
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Description |
Activity Log
Activity Time | |
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Responsible Party | |
Description |
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Responsible Party | |
Description |
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Description |
Issues
Issue Date | |
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Author | |
Issue |
Issue Date | |
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Author | |
Issue |
Issue Date | |
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Author | |
Issue |
Technical Environment
Description |
Microsoft Windows 7; ESRI ArcCatalog 9.3.1.1850 |
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Data Quality
Representativeness | |
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Accuracy | |
Analytical Accuracy | |
Horizontal Positional Accuracy | |
Vertical Positional Accuracy |
The LiDAR data was evaluated using a collection of GPS surveyed checkpoints which were provided by Sanborn and a subcontractor. These checkpoints were evaluated against the LiDAR for each county resulting in a lower RMSE and standard deviation than the project required. The control layout for the Michigan LiDAR Fall 2015 project was designed in 2 areas consisting of 3 counties each. The northern area includes Genesee, Lapeer, and Shiawassee Counties. The southern area includes Cass, Kalamazoo, and St. Joseph Counties. The Three County Area (Cass, St. Joseph, and Kalamazoo): The LiDAR surface was evaluated using a collection of 75 GPS surveyed checkpoints for the NVA report which compared favorably to the DEM. Attribute accuracy is tested after the LiDAR processing stage. After classification of the LiDAR data, DEMs are created using the bare earth points. The DEM surface was evaluated using a collection of 76 GPS surveyed checkpoints for the NVA report which compared favorably to the DEM. The VVA report is generated from the comparison of the DEM and the 59 GPS surveyed ground control checkpoints collected within the project area in vegetated areas. Accuracy reports are not derived from the Classified LAS tiles. The RMSE was computed to be 0.078 m, or 0.153 m @ 95th Confidence Interval defined by the National Standards for Spatial Data Accuracy (NSSDA); assessed and reported using National Digital Elevation Program (NDEP)/ASRPS Guidelines. The VVA RMSE was computed to be 0.115 m, or 0.234 m @ 95th Percentile defined by the National Standards for Spatial Data Accuracy (NSSDA); assessed and reported using National Digital Elevation Program (NDEP)/ASRPS Guidelines. |
Quantitation Limits | |
Bias | |
Comparability | |
Completeness Measure | |
Precision | |
Analytical Precision | |
Field Precision | |
Sensitivity | |
Detection Limit | |
Completeness Report |
LiDAR data is collected for the project area. Post processing of the simultaneously acquired GPS/INS is performed and applied to the laser returns to output a point cloud in the specified project coordinate system and datums. The point cloud data is then subjected to automated classification routines to assign all points in the point cloud to ground, water, overlap and unclassified point classes. Anomalous laser returns that occur infrequently are removed entirely from the data set. |
Conceptual Consistency |
LiDAR data is collected within the project area and processed. After the DEMs were created, the dataset was verified against control. Control was collected for 3 adjoining counties. Results are shown for Cass, Kalamazoo, and St. Joseph Counties. |
» Quality Control Procedures Employed |
Data Management
» Have Resources for Management of these Data Been Identified? | Yes |
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» Approximate Percentage of Budget for these Data Devoted to Data Management | Unknown |
» Do these Data Comply with the Data Access Directive? | Yes |
» Is Access to the Data Limited Based on an Approved Waiver? | |
» If Distributor (Data Hosting Service) is Needed, Please Indicate | |
» Approximate Delay Between Data Collection and Dissemination | |
» If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed | |
» Actual or Planned Long-Term Data Archive Location | NCEI-CO |
» Approximate Delay Between Data Collection and Archiving | |
» 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 2015 FEMA Michigan Part 2 lidar was ingested into the Data Access Viewer for custom product generation by leveraging USGS hosted Entwine Point Tiles. |
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Sources
Citation Title | Entwine Point Tiles on AWS |
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Contact Role Type | Publisher |
Contact Type | Organization |
Contact Name | USGS |
Publish Date | |
Extent Type | |
Extent Start Date/Time | |
Extent End Date/Time | |
Scale Denominator | |
Citation URL | https://usgs.entwine.io/ |
Citation URL Name | USGS Entwine Point Cloud |
Citation URL Description | |
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Scale Denominator |
Process Steps
Process Step Number | 1 |
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» Description |
At selected locations throughout the site, accurate GPS coordinates and elevations are surveyed and the points are marked with targets. |
Process Date/Time | 2015-01-01 00:00:00 |
Process Contact | |
Phone (Voice) | |
Email Address | |
Source |
Process Step Number | 2 |
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» Description |
The georeferenced un-classified lidar data is classified and edited in Terrasolid Terrascan software. Data is classified to produce: Class 1: unclassified, Class 2: ground, Class 7: low point, Class 9: water, Class 10: ignored ground, Class 11: withheld, Class 17: bridges, Class 18: noise (high, manually identified, if needed). |
Process Date/Time | 2015-01-01 00:00:00 |
Process Contact | |
Phone (Voice) | |
Email Address | |
Source |
Process Step Number | 3 |
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» Description |
The classified lidar data is exported as 2500 X 2500 foot tiles in the LAS format with any or all classes required to produce derivative products. |
Process Date/Time | 2015-01-01 00:00:00 |
Process Contact | |
Phone (Voice) | |
Email Address | |
Source |
Process Step Number | 4 |
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» Description |
Original point clouds in LAS/LAZ format were restructured as Entwine Point Tiles and stored on Amazon Web Services. The data were re-projected horizontally to WGS84 Web Mercator (EPSG 3857). Vertically, the data were converted to meters and no changes were made to the vertical datum (NAVD88 GEOID12A; EPSG 5703). |
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Process Contact | U.S. Geological Survey |
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Process Step Number | 5 |
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References to the entwine point tiles and data reports were ingested into the Digital Coast Data Access Viewer. No changes to the data were made at this point. The Data Access Viewer will access the point cloud as it resides on AWS under the usgs-lidar-public container. |
Process Date/Time | 2022-05-13 00:00:00 |
Process Contact | Office for Coastal Management (OCM) |
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Data Set (DS) | Cross Reference |
2015 FEMA Lidar: Michigan - Part 3 |
Catalog Details
Catalog Item ID | 67242 |
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Metadata Record Created By | Rebecca Mataosky |
Metadata Record Created | 2022-05-13 20:27+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2023-10-17 16:12+0000 |
Metadata Record Published | 2022-05-16 |
Owner Org | OCMP |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2022-05-16 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2023-05-16 |
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