Time Series of Structure-from-Motion Products - Digital Elevation Models: Madeira Beach, Florida, July 2017 to June 2018

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Jenna A. Brown
Originator: Christine J. Kranenburg
Originator: Karen L.M. Morgan
Publication_Date: 20201007
Title:

Time Series of Structure-from-Motion Products - Digital Elevation Models: Madeira Beach, Florida, July 2017 to June 2018

Geospatial_Data_Presentation_Form: raster digital data
Series_Information:

Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/P9L474WC

Publication_Information:

Publication_Place: St. Petersburg, Florida
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/P9L474WC

Description:

Abstract:

Aerial imagery acquired with a small unmanned aircraft system (sUAS), in conjunction with surveyed ground control points (GCP) visible in the imagery, can be processed with structure-from-motion (SfM) photogrammetry techniques to produce high-resolution orthomosaics, three-dimensional (3D) point clouds and digital elevation models (DEMs). This dataset, prepared by the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC), provides UAS survey data products consisting of DEMs collected at Madeira Beach, Florida, monthly from July 2017 to June 2018 in order to observe seasonal and storm-induced changes in beach topography.
Photogrammetry software was used to perform SfM processing on low-altitude digital aerial imagery acquired with a 3DR Solo UAS quadcopter equipped with a Ricoh GR II digital camera, using surveyed permanent features (for example, parking lot stripes, concrete groin blocks) and temporary targets (black and white, 4-square checked pattern) distributed uniformly throughout the UAS flight operations area as GCPs. The following SfM products are produced for each UAS survey over the approximately 700-meter-long and 100-meter-wide stretch of coastline: * georeferenced orthomosaic image with 5-centimeter (cm) resolution * DEM with 5-cm horizontal resolution * 3D RGB-colored point cloud
All horizontal data are provided in Universal Transverse Mercator (UTM) projected coordinate system, Zone 17 North (17N), referenced to the North American Datum of 1983 (NAD83 (2011)), and elevation is referenced to the North American Vertical Datum of 1988 (NAVD88), GEOID 12B.

Purpose:

These SfM products were produced from aerial images collected at Madeira Beach, Florida, from July 2017 to June 2018, in order to observe seasonal and storm-induced changes in beach topography.

Supplemental_Information:

Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 20170712

Single_Date/Time:

Calendar_Date: 20170816

Single_Date/Time:

Calendar_Date: 20170914

Single_Date/Time:

Calendar_Date: 20171011

Single_Date/Time:

Calendar_Date: 20171109

Single_Date/Time:

Calendar_Date: 20171211

Single_Date/Time:

Calendar_Date: 20180124

Single_Date/Time:

Calendar_Date: 20180222

Single_Date/Time:

Calendar_Date: 20180309

Single_Date/Time:

Calendar_Date: 20180411

Single_Date/Time:

Calendar_Date: 20180522

Single_Date/Time:

Calendar_Date: 20180619

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -82.79985545
East_Bounding_Coordinate: -82.79358312
North_Bounding_Coordinate: 27.79920689
South_Bounding_Coordinate: 27.79405585

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:ca4db938-34e8-4940-8d52-01b25302e5b5

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: remote sensing
Theme_Keyword: geospatial datasets
Theme_Keyword: digital elevation models
Theme_Keyword: topographic maps
Theme_Keyword: coastal processes
Theme_Keyword: topography

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Coastal and Marine Hazards and Resources Program
Theme_Keyword: CMHRP
Theme_Keyword: St. Petersburg Coastal and Marine Science Center
Theme_Keyword: SPCMSC
Theme_Keyword: unmanned aircraft systems
Theme_Keyword: UAS

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: imageryBaseMapsEarthCover
Theme_Keyword: oceans

Place:

Place_Keyword_Thesaurus: Geographic Names Information Service (GNIS)
Place_Keyword: Florida
Place_Keyword: Pinellas County
Place_Keyword: Madeira Beach

Access_Constraints: None
Use_Constraints:

USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator of the dataset and in products derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Christine J. Kranenburg
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center

Contact_Address:

Address_Type: mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: ckranenburg@usgs.gov

Data_Set_Credit: Data collection was funded by the U.S. Geological Survey.
Cross_Reference:

Citation_Information:

Originator: Brown, J.A., Kranenburg, C.J., and Morgan, K.L.M.
Publication_Date: 20200930
Title:

Time Series of Aerial Imagery from Small Unmanned Aircraft Systems and Associated Ground Control Points: Madeira Beach, Florida, July 2017 to June 2018

Series_Information:

Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/P91TH157

Online_Linkage: https://doi.org/10.5066/P91TH157

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The horizontal and vertical measurements of the surface models were compared against GCP survey data of fixed features covered by the survey.

Logical_Consistency_Report:

All data fall within expected ranges, except points near and offshore of the waterline. Data in the point cloud near the waterline and offshore can be noisy, and may result in erroneous measurements in the DEM due to interpolation (for example regions between groins that are underwater). Also, small areas of missing and/or grossly interpolated data may exist on the northeast (non-beach) side of buildings, which were occluded in the field-of-view of the UAS imagery and cannot be reconstructed.

Completeness_Report:

This dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The SfM-based geospatial products have an overall horizontal root-mean-square error (RMSE) of 3.4 cm, determined by comparing the horizontal position of the surveyed temporary check points (4-square, black and white, checkerboard targets) and the corresponding horizontal positions digitized in the orthomosaic, for all surveys.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

The SfM-based geospatial products have an overall vertical root-mean-square error (RMSE) of 3.1 cm, determined by comparing the surveyed check point elevations and the corresponding elevations in the DEM, for all check points from all surveys.

Lineage:

Process_Step:

Process_Description:

The SfM products were completed for each UAS survey individually, using the digital negative (DNG) photos. The complete set of photos was imported into Agisoft Photoscan (versions 1.3.5 - 1.5.5), along with corresponding ground control point reference information, and each flight was put into separate camera calibration groups. Photos were aligned at high accuracy, with a keypoint limit of 50,000 and unlimited tiepoints. Camera positions and the lens model were refined using three statistical metrics: reconstruction uncertainty, projection accuracy, and reprojection error with threshold values of 10, 2.6-3.0, and 0.3 respectively. Once the photo positions and lens models were optimized, dense point clouds were generated with Photoscan using the high quality and moderate filtering settings. The dense point clouds were then used to generate DEMs; note that the DEM represents the elevation of the surface as viewed from above (for example, tops of buildings and vegetation), and does not represent the bare earth surface. Finally, the raw photographs and DEM were combined to produce the orthomosaic, and both DEM and orthomosaic were exported in GeoTIFF file format at 5 cm resolution.

Process_Date: 20191210
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Christine J. Kranenburg
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center

Contact_Position: Cartographer
Contact_Address:

Address_Type: mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: ckranenburg@usgs.gov

Process_Step:

Process_Description:

Added keywords section with USGS persistent identifier as theme keyword.

Process_Date: 20201013
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:

Raster_Object_Type: Grid Cell

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:

UTM_Zone_Number: 17N
Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -81
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000.0
False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:

Abscissa_Resolution: 0.001
Ordinate_Resolution: 0.001

Planar_Distance_Units: Meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 0.001
Altitude_Distance_Units: Meters
Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

The DEM was saved as an encoded GeoTIFF, where each pixel has an explicit elevation value associated with it. The GeoTIFFs were created from the dense point cloud in Agisoft Photoscan with interpolation enabled. The no-data value is -32767.

Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center

Contact_Person: SPCMSC Data Management Group

Contact_Address:

Address_Type: mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov

Resource_Description:

These data are available in GeoTIFF format contained in a single ZIP file of SfM products per UAS survey. The DEM files are named with the following convention: yyyymmdd_MadeiraBeachFL_dem_5cm.tif where yyyymmdd represents the survey date as year (yyyy), month (mm) and day (dd).

Distribution_Liability:

This publication was prepared by an agency of the United States Government. Although these data were processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: GeoTIFF
Format_Information_Content:

The .zip file contains SfM products per UAS survey, including the DEM saved as .tif file.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P9L474WC/data/20170712_MadeiraBeachFL_SfMProducts.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P9L474WC/data/20170816_MadeiraBeachFL_SfMProducts.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P9L474WC/data/20170914_MadeiraBeachFL_SfMProducts.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P9L474WC/data/20171011_MadeiraBeachFL_SfMProducts.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P9L474WC/data/20171109_MadeiraBeachFL_SfMProducts.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P9L474WC/data/20171211_MadeiraBeachFL_SfMProducts.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P9L474WC/data/20180124_MadeiraBeachFL_SfMProducts.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P9L474WC/data/20180222_MadeiraBeachFL_SfMProducts.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P9L474WC/data/20180309_MadeiraBeachFL_SfMProducts.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P9L474WC/data/20180411_MadeiraBeachFL_SfMProducts.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P9L474WC/data/20180522_MadeiraBeachFL_SfMProducts.zip

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P9L474WC/data/20180619_MadeiraBeachFL_SfMProducts.zip

Access_Instructions:

Data can be downloaded as a zipped file from the Network_Resource_Name link, where yyyymmdd represents the year (yyyy), month (mm) and day (dd) of the UAS survey.

Fees: None.

Metadata_Reference_Information:

Metadata_Date: 20201013
Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Christine J. Kranenburg
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center

Contact_Position: Cartographer
Contact_Address:

Address_Type: mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: ckranenburg@usgs.gov

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/MadeiraBeachFL_SfMproducts_DEM_metadata.html>