TERRAIN, Concord, Massachusetts

The Concord AOI consists of one area. Ground Control is collected throughout the AOI for use in the processing of LiDAR data to ensure data accurately represents the ground surface. QA/QC checkpoints, (FVA and CVA - see Ground Control process step for further information) also collected throughout the AOI, are used for independent quality checks of the processed LiDAR data. LiDAR acquisition products include Pre- and Post- flight reports which contain information on the flightlines, equipment parameters, and other pertinant acquisition details. The LiDAR product is considered to be point cloud data and consists of 1500mx1500m tiles of LAS points which are partially classified such that the bare earth points can be calibrated to the ground surface and tested via the independent QC to ensure the ground surface is accurately represented. The Bare Earth deliverables consists of tiles of fully classified LAS points. A full narrative accompanies this deliverable, as well as the independent QC report.

Data and Resources

Field Value
access_constraints ["Use Constraints: Acknowledgement of FEMA would be appreciated in products derived from these data. This digital data is produced for the purposes of updating/creating a DFIRM database.", "Access Constraints: None"]
bbox-east-long -71.041272
bbox-north-lat 42.694254
bbox-south-lat 42.116204
bbox-west-long -71.80926
contact-email miphelp@mapmodteam.com
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2011-05-01"}]
frequency-of-update unknown
licence ["No warranty expressed or implied is made by FEMA regarding the utility of the data on any other system nor shall the act of distribution constitute any such warranty."]
metadata-date 2011-04-05
metadata-language eng; USA
metadata_type geospatial
progress completed
resource-type dataset
responsible-party [{"name": "Federal Emergency Management Agency", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-71.80926, 42.116204], [-71.041272, 42.116204], [-71.041272, 42.694254], [-71.80926, 42.694254], [-71.80926, 42.116204]]]}
spatial_harvester true
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • bare-earth
  • ckan
  • community-worcester
  • county-fips-027
  • county-of
  • county-worcester
  • digital-terrain-model
  • elevation-data
  • fema-cid-25027c
  • geo
  • geoss
  • ground-control
  • land-surface
  • las-point-files
  • lidar
  • national
  • north-america
  • point-cloud
  • region-i
  • state-ma
  • topography
  • united-states
isopen False
metadata_created 2025-11-20T22:48:35.545934
metadata_modified 2025-11-20T22:48:35.545939
notes The Concord AOI consists of one area. Ground Control is collected throughout the AOI for use in the processing of LiDAR data to ensure data accurately represents the ground surface. QA/QC checkpoints, (FVA and CVA - see Ground Control process step for further information) also collected throughout the AOI, are used for independent quality checks of the processed LiDAR data. LiDAR acquisition products include Pre- and Post- flight reports which contain information on the flightlines, equipment parameters, and other pertinant acquisition details. The LiDAR product is considered to be point cloud data and consists of 1500mx1500m tiles of LAS points which are partially classified such that the bare earth points can be calibrated to the ground surface and tested via the independent QC to ensure the ground surface is accurately represented. The Bare Earth deliverables consists of tiles of fully classified LAS points. A full narrative accompanies this deliverable, as well as the independent QC report.
num_resources 2
num_tags 24
title TERRAIN, Concord, Massachusetts