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This is a Non-Federal dataset covered by different Terms of Use than Data.gov. See Terms

1 foot Digital Elevation Model (DEM)

Metadata Updated: September 2, 2023

NYC 1foot Digital Elevation Model: A bare-earth, hydro-flattened, digital-elevation surface model derived from 2010 Light Detection and Ranging (LiDAR) data. Surface models are raster representations derived by interpolating the LiDAR point data to produce a seamless gridded elevation data set. A Digital Elevation Model (DEM) is a surface model generated from the LiDAR returns that correspond to the ground with all buildings, trees and other above ground features removed. The cell values represent the elevation of the ground relative to sea level. The DEM was generated by interpolating the LiDAR ground points to create a 1 foot resolution seamless surface. Cell values correspond to the ground elevation value (feet) above sea level. A proprietary approach to surface model generation was developed that reduced spurious elevation values in areas where there were no LiDAR returns, primarily beneath buildings and over water. This was combined with a detailed manual QA/QC process, with emphasis on accurate representation of docks and bare-earth within 2000ft of the water bodies surrounding each of the five boroughs.

Please see the following link for additional documentation- https://github.com/CityOfNewYork/nyc-geo-metadata/blob/master/Metadata/Metadata_DigitalElevationModel.md

Access & Use Information

Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. See Terms License: No license information was provided.

Downloads & Resources

Dates

Metadata Created Date November 10, 2020
Metadata Updated Date September 2, 2023

Metadata Source

Harvested from NYC JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date November 10, 2020
Metadata Updated Date September 2, 2023
Publisher data.cityofnewyork.us
Maintainer
Identifier https://data.cityofnewyork.us/api/views/dpc8-z3jc
Data First Published 2013-08-23
Data Last Modified 2022-09-23
Category City Government
Public Access Level public
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.cityofnewyork.us/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id c5bc6460-74c5-4733-a33f-91e7bd6087ec
Harvest Source Id 1696593e-c691-4f61-a696-5dcb9e4c9b4c
Harvest Source Title NYC JSON
Homepage URL https://data.cityofnewyork.us/d/dpc8-z3jc
Source Datajson Identifier True
Source Hash bef57476ab0dececce8eedaa223c8ede4f3fd319d32d3f8b5774ab08e6eca664
Source Schema Version 1.1

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