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Short Citation:
Office for Coastal Management, 2023: 2011 Bombay Hook National Wildlife Refuge DMC Imagery, https://www.fisheries.noaa.gov/inport/item/48396.

Item Identification

Title: 2011 Bombay Hook National Wildlife Refuge DMC Imagery
Short Name: 2011_bombay_hook
Status: Completed
Publication Date: 2011-07-26
Abstract:

The NOAA Bombay Hook Project covers 177 square kilometers of the Bombay Hook National Wildlife Refuge and surrounding areas in Kent County, Delaware. Dewberry produced Ortho Mosaics for 101 tiles (1700 m x 1700 m) covering this area. The Orthos were created with a 25cm cell size.

Original contact information:

Contact Org: NOAA Office for Coastal Management

Phone: 843-740-1202

Email: coastal.info@noaa.gov

Purpose:

These Orthos provide a snapshot in time that depicts the ground surface and water features for use in coastal management. These DEMs are created to the specifications outlined by NOAA OCM in partnership with the Delaware Department of Natural Resources and Environmental Control (DNREC).

Notes:

11351

Supplemental Information:

A complete description of this dataset is available in the Final Project Report submitted to NOAA OCM.

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS > INFRARED IMAGERY
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS > VISIBLE IMAGERY
UNCONTROLLED
Global Change Master Directory (GCMD) Instrument Keywords Earth Remote Sensing Instruments > Passive Remote Sensing > Photon/Optical Detectors > Cameras > CAMERAS
Global Change Master Directory (GCMD) Platform Keywords Aircraft > AIRCRAFT
ISO 19115 Topic Category imageryBaseMapsEarthCover
None DEM
None DMC
None Mosaic
None ORTHO
None Remotely Sensed Imagery/Photos

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > DELAWARE
UNCONTROLLED
None Bombay Hook National Wildlife Refuge
None Delaware
None Kent County

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: As Needed
Data Presentation Form: Map (digital)
Distribution Liability:

Users must assume responsibility to determine the usability of these data.

Support Roles

Data Steward

CC ID: 633101
Date Effective From: 2011-07-26
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 633103
Date Effective From: 2011-07-26
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Metadata Contact

CC ID: 633104
Date Effective From: 2011-07-26
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 633102
Date Effective From: 2011-07-26
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 633107
W° Bound: -75.5558
E° Bound: -75.3625
N° Bound: 39.3261
S° Bound: 39.0275

Extent Group 1 / Time Frame 1

CC ID: 633106
Time Frame Type: Discrete
Start: 2011-05-07

Spatial Information

Spatial Representation

Representations Used

Grid: Yes

Grid Representation 1

CC ID: 633092
Dimension Count: 3
Cell Geometry: Point
Transformation Parameters Available?: No

Axis Dimension 1

Dimension Type: Row
Size: 6800

Axis Dimension 2

Dimension Type: Column
Size: 6800

Axis Dimension 3

Dimension Type: Vertical
Size: 1

Access Information

Security Class: Unclassified
Data Access Constraints:

None

Data Use Constraints:

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.

Distribution Information

Distribution 1

CC ID: 744371
Download URL: https://coast.noaa.gov/dataviewer/#/imagery/search/where:ID=1060
Distributor:
File Name: Customized Download
Description:

Create custom data files by choosing area, map projection, file format, etc.

Distribution 2

CC ID: 744372
Download URL: https://coast.noaa.gov/htdata/raster2/imagery/BombayHookDE_2011_1060
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 744374
URL: https://coast.noaa.gov/digitalcoast
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 633123
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 633122
Activity Date/Time: 2017-11-14
Description:

Converted from FGDC (Federal Geographic Data Committee) CSDGM (Content Standard for Digital Geospatial Metadata) (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.

Activity Log 3

CC ID: 717161
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 744373
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Technical Environment

Description:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850

Data Quality

Horizontal Positional Accuracy:

AT was performed using Surveyed control points, Dewberry and Davis, LLC used Trimble R-8 GNSS receivers, which is a geodetic quality dual frequency GPS receiver, to collect data at each surveyed location. The required accuracy is 2 m or better at the 95% confidence level as computed in accordance with the FGDC National Standard for Spatial Data Accuracy (NSSDA).; Quantitative Value: 2 meters, Test that produced the value: The ground control was captured using Trimble R-8 GNSS receivers, which is a geodetic quality dual frequency GPS receiver. All locations were occupied once with approximately 38% of the locations being re-observed. All re-observations matched the initially derived station positions within the allowable tolerance of 5cm or within the 95% confidence level. 2 m or better at the 95% confidence level as computed in accordance with the FGDC National Standard for Spatial Data Accuracy (NSSDA).

Vertical Positional Accuracy:

The DEMs are derived from the source LiDAR. Vertical accuracy is not tested on the DEMs. The vertical accuracy of the LiDAR was tested by Dewberry with 8 independent survey checkpoints. The survey checkpoints were evenly distributed throughout the project area. All 8 checkpoints were used to compute the Fundamental Vertical Accuracy (FVA). Project specifications required a FVA of 18 cm (0.18 m) based on a RMSEz (9 cm/ 0.09 m) x 1.9600. All checkpoints were also used to compute the Consolidated Vertical Accuracy (CVA). Project specifications required a CVA of 18 cm (0.18 m) based on the 95th percentile.; Quantitative Value: 0.14 meters, Test that produced the value: 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% 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% 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% confidence level in all land cover categories combined.

Completeness Measure:

Cloud Cover: 0

Completeness Report:

A visual qualitative assessment was performed to ensure data completeness and compliance with project specifications. No void or missing data exists. Multiple tiles were added to the tile grid to fully cover the project boundary.

Conceptual Consistency:

Data covers the tile scheme provided for the project area.

Lineage

Process Steps

Process Step 1

CC ID: 633089
Description:

The Raw imagery along with the DEM, AT, Camera calibration information were ingested into Image Station Orthopro. Orthorectified photos were then created. Seamlines were placed along natural and man made features that would mosaic the ortho images together based on a supplied tile grid.

Process Date/Time: 2011-06-01 00:00:00

Process Step 2

CC ID: 633090
Description:

Metadata imported.

Process Date/Time: 2011-07-06 00:00:00

Catalog Details

Catalog Item ID: 48396
GUID: gov.noaa.nmfs.inport:48396
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-14 14:46+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2018-03-13
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2018-03-13
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2019-03-13