|Nikolski, Alaska Coastal Digital Elevation Model|
|NOAA’s National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-topographic DEMs are used to support tsunami forecasting and modeling efforts at the NOAA Center for Tsunami Research, Pacific Marine Environmental Laboratory (PMEL). The DEMs are part of the tsunami forecast system SIFT (Short-term Inundation Forecasting for Tsunamis) currently being developed by PMEL for the NOAA Tsunami Warning Centers, and are used in the MOST (Method of Splitting Tsunami) model developed by PMEL to simulate tsunamigeneration, propagation, and inundation. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources, including NGDC, the U.S. National Ocean Service (NOS), the U.S. Geological Survey (USGS), the National Aeronautic Space Administration (NASA), and other federal, state, and local government agencies, and academic institutions. DEMs are referenced to the vertical tidal datum of Mean High Water (MHW) and horizontal datum of World Geodetic System 1984 (WGS84). Grid spacings for the DEM is 1 arc-second (30m).|
|Get the Data|
|Access||Format(s)||Distributor(s) / Contact Info||Instructions / Constraints|
- Nikolski, Alaska Coastal Digital Elevation Model ASCII DEM
- Download DEM, metadata and readme file.
- Nikolski, Alaska Coastal Digital Elevation Model Homepage
- Information, preview and access DEM, metadata record and development report.
- DEM text search tool
- Text search tool for locating completed and planned DEMs.
- Map Interface
- Graphic geo-spatial search tool for locating completed and planned DEMs.
- ESRI Arc ASCII
- Format version:
- Format specification:
ASCII text version of ESRI ArcGIS raster format
- Use Limitation
- Not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For navigation, please refer to the NOS nautical chart series.
- Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.
- While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.