2018 Long Island, NY DMC 4-Band 8 Bit Imagery
Data Set (DS) | Office for Coastal Management (OCM)GUID: gov.noaa.nmfs.inport:54912 | Updated: February 5, 2024 | Published / External
Summary
Short Citation
Office for Coastal Management, 2024: 2018 Long Island, NY DMC 4-Band 8 Bit Imagery, https://www.fisheries.noaa.gov/inport/item/54912.
Full Citation Examples
This data set consists of a set of aerial triangulated 4-band orthophotos (.tif format) with a .5 meter resolution of the Long Island South Shore that includes the areas of Great South Bay, Moriches Bay, and Shinnecock Bay. The imagery was flown over three days, May 9, 11 and 24, 2018. The digital imagery was acquired by Richard Crouse & Associates(RCA) using an Intergraph DMC2e 230-23522 digital mapping camera. The resulting photographic images were aerotriangulated by Leading Edge Geomatics and reviewed for quality by Dewberry. The imagery was collected under environmental conditions favorable to mapping shallow submerged habitats, in particular seagrass. Missions were timed to coincide with low tide, sun angles below 30 degrees, calm sea state, and low-turbidity. The missions were also scheduled to take advantage of adequate seagrass biomass and minimal brown tide events. Close coordination with local observers on the ground was maintained to ensure good water clarity during data acquisition.
Distribution Information
-
GeoTIFF
Unknown
-
Create custom data files by choosing area, map projection, file format, etc.
-
Simple download of data files.
None
Acknowledgement of the New York Governor's Office of Storm Recovery and Dewberry Inc. would be appreciated in products derived from this data.
Controlled Theme Keywords
imageryBaseMapsEarthCover, INFRARED IMAGERY, VISIBLE IMAGERY
Child Items
No Child Items for this record.
Contact Information
Point of Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
Extents
-73.755° W,
-72.395° E,
40.919° N,
40.555° S
2018-05-09
2018-05-11
2018-05-24
Item Identification
| Title: | 2018 Long Island, NY DMC 4-Band 8 Bit Imagery |
|---|---|
| Status: | Completed |
| Publication Date: | 2018-11-19 |
| Abstract: |
This data set consists of a set of aerial triangulated 4-band orthophotos (.tif format) with a .5 meter resolution of the Long Island South Shore that includes the areas of Great South Bay, Moriches Bay, and Shinnecock Bay. The imagery was flown over three days, May 9, 11 and 24, 2018. The digital imagery was acquired by Richard Crouse & Associates(RCA) using an Intergraph DMC2e 230-23522 digital mapping camera. The resulting photographic images were aerotriangulated by Leading Edge Geomatics and reviewed for quality by Dewberry. The imagery was collected under environmental conditions favorable to mapping shallow submerged habitats, in particular seagrass. Missions were timed to coincide with low tide, sun angles below 30 degrees, calm sea state, and low-turbidity. The missions were also scheduled to take advantage of adequate seagrass biomass and minimal brown tide events. Close coordination with local observers on the ground was maintained to ensure good water clarity during data acquisition. |
| Purpose: |
The purpose of this imagery set is to provide digital imagery suitable for development of the accurate and detailed benthic habitat data required by the New York State Department of State. The eventual benthic data will be used to assess changes in benthic habitats since 2002 due to changes in water quality and impacts related to storm events such as hurricane Sandy. |
| Supplemental Information: |
Acknowledgement of the New York Governor's Office of Storm Recovery and Dewberry Inc. would be appreciated in products derived from this data. |
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
|
| ISO 19115 Topic Category |
imageryBaseMapsEarthCover
|
| UNCONTROLLED | |
| None | aerial |
| None | coastal |
| None | digital orthophotography |
| None | orthophoto |
| None | photograph |
| None | rectified image |
| None | shoreline |
Spatial Keywords
| Thesaurus | Keyword |
|---|---|
| Global Change Master Directory (GCMD) Location Keywords |
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW YORK
|
Instrument Keywords
| Thesaurus | Keyword |
|---|---|
| Global Change Master Directory (GCMD) Instrument Keywords |
CAMERAS
|
Platform Keywords
| Thesaurus | Keyword |
|---|---|
| Global Change Master Directory (GCMD) Platform Keywords |
Airplane > Airplane
|
Physical Location
| Organization: | Office for Coastal Management |
|---|---|
| City: | Charleston |
| State/Province: | SC |
Data Set Information
| Data Set Scope Code: | Data Set |
|---|---|
| Maintenance Frequency: | None Planned |
| Data Presentation Form: | Image (digital) |
Support Roles
Data Steward
| Date Effective From: | 2018-11-19 |
|---|---|
| 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
| Date Effective From: | 2018-11-19 |
|---|---|
| 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
| Date Effective From: | 2018-11-19 |
|---|---|
| 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
| Date Effective From: | 2018-11-19 |
|---|---|
| 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
| W° Bound: | -73.755 | |
|---|---|---|
| E° Bound: | -72.395 | |
| N° Bound: | 40.919 | |
| S° Bound: | 40.555 |
Extent Group 1 / Time Frame 1
| Time Frame Type: | Discrete |
|---|---|
| Start: | 2018-05-09 |
Extent Group 1 / Time Frame 2
| Time Frame Type: | Discrete |
|---|---|
| Start: | 2018-05-11 |
Extent Group 1 / Time Frame 3
| Time Frame Type: | Discrete |
|---|---|
| Start: | 2018-05-24 |
Spatial Information
Spatial Representation
Representations Used
| Grid: | No |
|---|
Access Information
| Security Class: | Unclassified |
|---|---|
| Data Access Constraints: |
None |
| Data Use Constraints: |
Acknowledgement of the New York Governor's Office of Storm Recovery and Dewberry Inc. would be appreciated in products derived from this data. |
Distribution Information
Distribution 1
| Download URL: | https://coast.noaa.gov/dataviewer |
|---|---|
| Distributor: | |
| Description: |
Unknown |
| File Type (Deprecated): | GeoTIFF |
| Distribution Format: | GeoTIFF |
Distribution 2
| Download URL: | https://coast.noaa.gov/dataviewer/#/imagery/search/where:ID=8631 |
|---|---|
| Distributor: | |
| File Name: | Customized Download |
| Description: |
Create custom data files by choosing area, map projection, file format, etc. |
Distribution 3
| Download URL: | https://coastalimagery.blob.core.windows.net/digitalcoast/LongIslandNY_2018_8631/index.html |
|---|---|
| Distributor: | |
| File Name: | Bulk Download |
| Description: |
Simple download of data files. |
URLs
URL 1
| URL: | https://coast.noaa.gov/dataviewer |
|---|---|
| URL Type: |
Online Resource
|
Activity Log
Activity Log 1
| Activity Date/Time: | 2017-01-20 |
|---|---|
| Description: |
Date that the source FGDC record was last modified. |
Activity Log 2
| Activity Date/Time: | 2017-11-14 |
|---|---|
| Description: |
Converted from FGDC Content Standards 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
| Activity Date/Time: | 2018-02-08 |
|---|---|
| Description: |
Partial upload of Positional Accuracy fields only. |
Activity Log 4
| Activity Date/Time: | 2018-03-13 |
|---|---|
| Description: |
Partial upload to move data access links to Distribution Info. |
Data Quality
| Horizontal Positional Accuracy: |
Dewberry completed a horizontal ground control point survey in the field using survey grade equipment. 20 checkpoints were used to test the horizontal positional accuracy of the orthophotography. The horizontal positional accuracy specification at the 95% confidence level is 0.734 m. The tested horizontal positional accuracy at the 95% confidence level for the orthophotography passed at 0.241 m. |
|---|---|
| Completeness Report: |
The imagery data is visually inspected for completeness to ensure that are no void areas or missing data. |
Lineage
Process Steps
Process Step 1
| Description: |
Upon receiving the Go-No Go approval from project team to collect imagery, Richard Crouse and Associates collected aerial multi-spectral imagery over the South Shore Estuary Reserve study area at 8, 084 feet above ground level, resulting in a 15cm pixel. The image frames were collected with 60% overlap and 30% sidelap to produce stereo imagery for photogrammetric processing and to help minimize glint issues caused by camera angle. A total of 1208 frames were collected along 18 flight lines generally oriented WSW to ENE. |
|---|---|
| Process Date/Time: | 2018-05-01 00:00:00 |
Process Step 2
| Description: |
Dewberry used previously surveyed Ground Control Points (GCPs) for the mapping effort. 20 checkpoints were used to test the horizontal positional accuracy of the orthophotography. The horizontal positional accuracy specification at the 95% confidence level is 0.734 m. The tested horizontal positional accuracy at the 95% confidence level for the orthophotography passed at 0.241 m. The points are well-defined features, such as sharp corners, path crossings, fence posts, parking lot striping and intersections of driveways with roads. A total of 20 control points were utilized throughout the project area and documented on Photo Control Point Sheets. Each sheet has a written description of the point location, point number, and the coordinates in UTM 18 (northing and easting). |
|---|---|
| Process Date/Time: | 2018-07-23 00:00:00 |
Process Step 3
| Description: |
An aerotriangulation solution was computed by Leading Edge Geomatics using Inpho software issued by Trimble, Inc., utilizing camera calibration reports, digital imagery, and surveyed ground control points. The adjusted control points, camera orientation parameters and pre-existing USGS Digital Elevation Models (DEMs) were then used for digital orthophotography generation in Inpho. The individual georectified orthophotos were then used to create area wide mosaic images in NRGB color band combinations, which were reviewed for quality by Dewberry. A final step was to clip the area-wide mosaic into individual tiles corresponding to U.S. Geological Survey 7.5 minute quarter quad boundaries and name each tile using it's quad name. A slight overlap for each tile ensured comprehensive coverage. |
|---|---|
| Process Date/Time: | 2018-07-23 00:00:00 |
Catalog Details
| Catalog Item ID: | 54912 |
|---|---|
| GUID: | gov.noaa.nmfs.inport:54912 |
| Metadata Record Created By: | Erik Hund |
| Metadata Record Created: | 2018-11-19 13:23+0000 |
| Metadata Record Last Modified By: | Brianna Key |
| Metadata Record Last Modified: | 2024-02-05 17:15+0000 |
| Metadata Record Published: | 2024-02-05 |
| Owner Org: | OCM |
| Metadata Publication Status: | Published Externally |
| Do Not Publish?: | N |
| Metadata Last Review Date: | 2018-11-19 |
| Metadata Review Frequency: | 1 Year |
| Metadata Next Review Date: | 2019-11-19 |