gov.noaa.nmfs.inport:49779 eng UTF8 dataset OCM Partners resourceProvider NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact 2026-04-30T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) 2004 FEMA Lidar: Blackstone (MA & RI) mari2004_fema_blackstone_m5045_metadata 2016-07-09 publication NOAA/NMFS/EDM 49779 https://www.fisheries.noaa.gov/inport/item/49779 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://coast.noaa.gov/dataviewer WWW:LINK-1.0-http--link Citation URL Online Resource download https://coast.noaa.gov WWW:LINK-1.0-http--link Citation URL Online Resource download The LIDAR-derived data was collected in the Blackstone River area. This data supports the Federal Emergency Management Agency's specifications for mapping floodplains. These efforts required detailed elevation data and models, such as those available from LIDAR sensing. The data have also been made available to aid in other projects that require detailed surface, vegetation and/or structure elevations. Buildings classed as ground. The purpose of this LiDAR data was to produce high accuracy 3D elevation based geospatial products for coastal flood mapping. The following regions of Rhode Island are included in this project completed NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information custodian notPlanned https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/5045/supplemental/mari2004_fema_blackstone_be_m5045.kmz This graphic shows the lidar coverage for the 2004 collection of the Blackstone River watershed stretching from Massachusetts into Rhode Island. kmz Land Surface theme Lidar - partner (no harvest) project InPort otherRestrictions Cite As: OCM Partners, [Date of Access]: 2004 FEMA Lidar: Blackstone (MA & RI) [Data Date Range], https://www.fisheries.noaa.gov/inport/item/49779. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: None otherRestrictions 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. These data depict the heights at the time of the survey and are only accurate for that time. otherRestrictions Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of Sanborn, CDM, NOAA, the Office for Coastal Management or its partners. unclassified vector eng; US elevation -71.893119 -71.374823 41.864629 42.315683 | Currentness: Ground Condition 2004-11-16 2004-11-18 A footprint of this data set may be viewed in Google Earth at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/5045/supplemental/mari2004_fema_blackstone_be_m5045.kmz false eng false none NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information distributor https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=5045 WWW:LINK-1.0-http--link Customized Download Create custom data files by choosing data area, product type, map projection, file format, datum, etc. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/5045/index.html WWW:LINK-1.0-http--link Bulk Download Simple download of data files. download dataset Horizontal Positional Accuracy Horizontal accuracy was not reported, therefore assuming 100 cm accuracy Vertical Positional Accuracy RTK collected in coincidence; Quantitative Value: 0.185 meters, Test that produced the value: Reported as Quality level 4, with an point spacing of 1.3 m, therefore inference was that vertical accuracy would need to meet 18.5 cm Completeness Report Complete Conceptual Consistency All LiDAR files delivered were verified and tested to ensure they open and are positioned properly. The ABGPS, IMU, and raw LiDAR data are integrated into the post processor software. The resultant file is in an ASCII file. It is a binary file format that maintains information specific to the LiDAR data. The resultant points are produced in the geodetic coordinates referenced to the NAD83 horizontal datum and GRS80 vertical datum. - Projection Transformation The data was processed in the native UTM zone in meters and then transformed to the UTM Zone 18 final projection system and meters using an in-house transformation software. 2004-11-16T00:00:00 The NOAA Office for Coastal Management (OCM) received topographic PNT text files as part of the delivery from FEMA, referenced to UTM Zone 18 in meters horizontally but NAVD88 using the Geoid03 model vertically. OCM performed the following processing for data storage and Digital Coast provisioning purposes: 1. The LAS files were converted from PNT files to text files (txt) 2. The TXT files were converted to LAS files with txt2las (lastools), designating those points as Class 2 - Ground. 2. The LAS files were converted from orthometric (NAVD88) heights to ellipsoidal heights using the Geoid03 model. 2016-07-01T00:00:00