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Summary

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Short Citation
OCM Partners, 2025: 2017 FEMA Lidar: Branch and Calhoun Counties, MI, https://www.fisheries.noaa.gov/inport/item/60108.
Full Citation Examples

Abstract

The Federal Emergency Management Agency (FEMA) required high accuracy classified LiDAR data in combination with raster digital elevation models and hydrographic breaklines. For this effort, Continental Mapping Consultants (Continental) collected and processed high accuracy classified LiDAR data in .LAS format as well as a combination of raster digital elevation models.

Branch County:

Acquired and processed 535 square miles of USGS defined Quality Level 2 LiDAR, collection of hydro-breaklines, and creation of Hydro-Flattened Digital Elevation Models.

Calhoun County:

Acquired and processed 745 square miles of USGS defined Quality Level 2 LiDAR, collection of hydro-breaklines, and creation of Hydro-Flattened Digital Elevation Models. The Calhoun County project area contains Palustrine wetlands and poorly drained hydric soils that retain water after snow melt and/or spring rains. Most soil types, according to the Soil Survey Geographic Database (SSURGO) for Calhoun County, have available water storage between 15-37 cm. Low confidence areas have been designated where it was apparent that the ground conditions were saturated and produced minimal returns.

The NOAA Office for Coastal Management (OCM) downloaded this data set from these USGS sites:

ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/USGS_LPC_MI_BranchCo_2017_LAS_2019

ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/USGS_LPC_MI_CalhounCo_2017_LAS_2019

These files were processed to the Data Access Viewer (DAV) and https. The total number of files downloaded and processed was 1533.

The breaklines were also downloaded and are available for download at the link provided in the URL section of this metadata record. Please note that this product has not been reviewed by the NOAA Office for Coastal Management (OCM) and any conclusions drawn from the analysis of this information are not the responsibility of NOAA or OCM.

Distribution Information

  • 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.

  • LAS/LAZ - LASer

    Bulk download of data files in LAZ format, geographic coordinates, orthometric heights. Note that the vertical datum (hence elevations) of the files here are different than described in this document. They will be in an orthometric datum.

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

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

Geographic Area 1

-85.304447° W, -84.704715° E, 42.425738° N, 41.75722° S

Time Frame 1
2017-03-22 - 2017-04-24

Branch County

Time Frame 2
2017-04-18 - 2017-04-23

Calhoun County