NOAA orthorectified Digital Elevation Model (DEM) image tiles, Bombay Hook, Delaware, 2011 (NCEI Accession 0112173)
The NOAA Bombay Hook Project covers 177 square kilometers of the Bombay Hook National Wildlife Refuge and surrounding areas in Kent County, Delaware. The Dewberry company produced ortho mosaics for 101 tiles (1700 m x 1700 m) covering this area. The images were created with a 25cm cell size. These images provide a snapshot in time that depicts the ground surface and water features for use in coastal management. These Digital Elevation Models (DEMs) are created to the specifications outlined by NOAA CSC in partnership with the Delaware Department of Natural Resources and Environmental Control (DNREC).
These images are in ERDAS commercial software .img format which may be read by GIS software and various computer languages. Associated Reduced Resolution Dataset (.rrd) files, HIStory (.his) files, browse image (.jpg) files, and individual (.xml) and collection level metadata in Federal Geographic Data Committee (FGDC) format are included in the dataset.
These images are in ERDAS commercial software .img format which may be read by GIS software and various computer languages. Associated Reduced Resolution Dataset (.rrd) files, HIStory (.his) files, browse image (.jpg) files, and individual (.xml) and collection level metadata in Federal Geographic Data Committee (FGDC) format are included in the dataset.
Dataset Citation
- Cite as: Hund, Erik; US DOC/NOAA/NOS > Coastal Services Center (2013). NOAA orthorectified Digital Elevation Model (DEM) image tiles, Bombay Hook, Delaware, 2011 (NCEI Accession 0112173). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0112173. Accessed [date].
Dataset Identifiers
ISO 19115-2 Metadata
gov.noaa.nodc:0112173
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov |
Dataset Point of Contact |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Time Period | 2011-05-07 to 2011-05-07 |
Spatial Bounding Box Coordinates |
West: -75.5558
East: -75.3625
South: 39.0275
North: 39.3261
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
Dataset Progress Status | Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility |
Data Update Frequency | As needed |
Supplemental Information | 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. The DEMs are derived from the source LiDAR. Vertical accuracy is not tested on the DEMs. Based on the vertical accuracy testing conducted by Dewberry, using NSSDA and FEMA methodology, vertical accuracy at the 95% confidence level (called Accuracyz) is computed by the formula RMSEz x 1.9600. The dataset for the Bombay Hook project satisfies the criteria - Lidar dataset tested 0.14 m vertical accuracy at 95 percent confidence level, based on RMSEz (0.07 m) x 1.9600; Based on the vertical accuracy testing conducted by Dewberry, using NDEP and ASPRS methodology, consolidated vertical accuracy at the 95 percent confidence level is computed using the 95th percentile method. The dataset for the Bombay Hook project satisfies the criteria - Lidar dataset tested 0.11 m vertical accuracy at 95 percent confidence level in all land cover categories combined. |
Purpose | This dataset is available to the public for a wide variety of uses including scientific research and analysis. |
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Last Modified: 2024-02-21T13:41:08Z
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov