Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC), and Inc., Intermap Technologies , 20060222, 2005 Hawaii IfSAR Digital Terrain Model (DTM): Digital Terrain Models Core Product Version: 1, Edit Rule Version: 1, NOAA's Ocean Service, Coastal Services Center (CSC), Charleston, SC.
This is a Raster data set. It contains the following raster data types:
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.0000416667. Longitudes are given to the nearest 0.0000416667. Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is NAD83.
The ellipsoid used is GRS80.
The semi-major axis of the ellipsoid used is 6378137.0.
The flattening of the ellipsoid used is 1/298.257222101.
|Range of values|
This data was produced by Intermap Technologies Inc.
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The DTMs are used as a fundamental layer of information in Geographic Information Systems (GIS) and Spatial Information Decision Support Systems (DSS). A number of the priority layers of spatial information recognized by the National Spatial Data Infrastructure may be derived from Intermap DEMs, including elevation, hydrography, slope, aspect, and shoreline delineation.
Inc., Intermap Technologies , Unknown, Intermap ORI: Orthorectified Radar Image(ORI) Core Product Version: 1, Edit Rule Version: 1.
Calculation of the digital elevation model accuracy is described in theIntermap Technologies Core Product Handbook User's Guide. <http://www.intermap.com/images/handbook/producthandbook.pdf>
All data products are 2 meters RMSE or better in areas of unobstructed flat ground.
1 meter RMSE or better in areas of unobstructed flat ground.
Coverage maps are provided for each area of acquisition. <http://www.intermap.com>
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Data set is not for use in litigation. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, NOAA, cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data, or as a result of the data to be used on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Coastal Services Center or it's partners.