RGB averaged orthoimagery

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 20210602
Title: RGB averaged orthoimagery
Edition: 1.0
Geospatial_Data_Presentation_Form: raster digital data (GeoTIFF)
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9CA3D8P
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher:
U.S. Geological Survey, Coastal and Marine Hazards and Resources Program
Online_Linkage: https://doi.org/10.5066/P9CA3D8P
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Andrew C. Ritchie
Originator: Jin-Si R. Over
Originator: Christine J. Kranenburg
Originator: Jenna A. Brown
Originator: Daniel Buscombe
Originator: Christopher R. Sherwood
Originator: Jonathan A. Warrick
Originator: Phillipe A. Wernette
Publication_Date: 2021
Title:
Aerial Photogrammetry Data and Products of the North Carolina Coast: 2018-10-06 to 2018-10-08, Post-Hurricane Florence
Edition: 1.0
Geospatial_Data_Presentation_Form: digital files
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9CA3D8P
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
suggested citation: Ritchie, A.C., Over, J.R., Kranenburg, C.J., Brown, J.A., Buscombe, D., Sherwood, C.R., Warrick, J.A., and Wernette, P.A, 2021. Aerial Photogrammetry Data and Products of the North Carolina Coast—2018-10-06 to 2018-10-08, Post-Hurricane Florence: U.S Geological Survey data release, https://doi.org/10.5066/P9CA3D8P.
Online_Linkage: https://doi.org/10.5066/P9CA3D8P
Online_Linkage:
Description:
Abstract:
This data release presents structure-from-motion (SFM) products derived from aerial imagery surveys with precise Global Navigation Satellite System (GNSS) navigation data flown in a piloted fixed wing aircraft taken along the North Carolina coast in response to Hurricane Florence (available here https://coastal.er.usgs.gov/data-release/doi-P91KB9SF/). USGS researchers use the elevation models and orthorectified imagery to assess future coastal vulnerability, nesting habitats for wildlife, and provide data for hurricane impact models. The products span the coast over both highly developed towns and natural areas, including federal lands. These products represent the coast after Hurricane Florence and cover the Cape Fear area, North Carolina to the Virginia border vicinity from October 6-8, 2018. This research is part of the Remote Sensing Coastal Change Project.
Purpose:
The RGB averaged ortho products are created to document interannual changes in shoreline position and coastal morphology in response to storm events using aerial imagery collections and the structure-from-motion (SFM) workflow. These data are intended for science researchers, students, policy makers, and the general public. These data can be used with geographic information systems or other software to identify topographic and shallow-water bathymetric features.
Supplemental_Information:
The raw imagery and navigation data used to produce the orthoimagery are available online at https://coastal.er.usgs.gov/data-release/doi-P91KB9SF/. Bounding coordinates are derived from the overall flight path and are not necessarily representative of individual RGB averaged ortho product bounds which are split up along the coast to have more accessible data download sizes.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20181006
Ending_Date: 20181008
Currentness_Reference:
ground condition, data was collected on three days: October 6, 7, and 8 of 2018.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Not planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -78.1635
East_Bounding_Coordinate: -75.4581
North_Bounding_Coordinate: 36.2200
South_Bounding_Coordinate: 33.8387
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Theme_Keyword: imageryBaseMapsEarthCover
Theme_Keyword: farming
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Hazards and Resources Program
Theme_Keyword: CMHRP
Theme_Keyword: Remote Sensing Coastal Change
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: structure from motion
Theme_Keyword: remote sensing
Theme_Keyword: aerial photography
Theme_Keyword: image collections
Theme_Keyword: geomorphology
Theme_Keyword: geospatial datasets
Theme_Keyword: digital elevation models
Theme_Keyword: earth sciences
Theme_Keyword: geography
Theme_Keyword: coastal processes
Theme_Keyword: USGS-CC Natural Hazards
Theme_Keyword: hurricanes
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:6037cca0d34eb12031175133
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: USA
Place_Keyword: Virginia
Place_Keyword: North Carolina
Place_Keyword: Outer Banks
Place_Keyword: Cape Hatteras National Seashore
Place_Keyword: Cape Lookout National Seashore
Place_Keyword: Cape Fear
Access_Constraints: None
Use_Constraints:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Andrew C Ritchie
Contact_Organization: U.S. Geological Survey, SOUTHWEST REGION
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Country: US
Contact_Voice_Telephone: 831-460-7454
Contact_Facsimile_Telephone: 831-427-4748
Contact_Electronic_Mail_Address: aritchie@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description: Example segment of an RGB averaged ortho product.
Browse_Graphic_File_Type: JPEG
Data_Set_Credit:
Data collection was funded by the U.S Geological Survey. Data acquisition was conducted by Wayne Wright LLC. Data processing was done by the U.S Geological Survey.
Native_Data_Set_Environment:
Microsoft Windows 10, Agisoft Metashape Professional version 1.6.5, gdal version 3.1.4.
Cross_Reference:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Andrew C. Ritchie
Originator: Christine Kranenburg
Originator: Jennifer (Jenna) A. Brown
Originator: Daniel D. Buscombe
Originator: Tom Noble
Originator: Christopher R. Sherwood
Originator: Jonathan Warrick
Originator: Phillipe Wernette
Publication_Date: 2021
Title:
Processing coastal imagery with Agisoft Metashape Professional Edition, version 1.6—Structure from motion workflow documentation
Series_Information:
Series_Name: Open File Report
Issue_Identification: 2021-1039
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This publication includes the general methodology for processing imagery in Metashape to produce DEMs and ortho products.
Online_Linkage: https://doi.org/10.3133/ofr20211039
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The source imagery and positional information and metadata that were used to create these photogrammetrically derived digital elevation models are available here: https://coastal.er.usgs.gov/data-release/doi-P91KB9SF/ Information on the horizontal and vertical accuracies of the source data can be found within the data release metadata. No color corrections were applied to the RGB averaged ortho products. GeoTIFFs are in full-color. The blending mode of the orthoimagery uses a weighted average value of all the pixels from individual photos (https://www.agisoft.com/pdf/metashape-pro_1_6_en.pdf - see Blending mode).
Logical_Consistency_Report: There are a total of 15 RGB averaged ortho products.
Completeness_Report:
All collected imagery (37,497) was used. The orthoimagery products have not been cropped and include coverage of water. Products were created from interpolated DEMs. 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 horizontal positional accuracy was evaluated against 21 of the 34 independent photo-identifiable ground control points measured with survey-grade GPS (Brown and others, 2021 - see citation below in lineage for additional accuracy report) but 20 (#'s 5, 6, 8, 12-16, 18-20, 22, 24, 26-29, 31, and 33) were used as check points and only 1 control point (#32) from the Outer Banks and the post-processed kinematic (PPK) camera positions (Kranenburg and others, 2020 - see citation below in lineage for additional accuracy report) were used to create the final Ortho products. As reported by the software Agisoft Metashape Professional, the SFM project after alignment that creates the Ortho products had an overall GCP control point horizontal root-mean-square error (RMSE) of 5.18 cm and the total camera position horizontal RMSE was 25.19 cm.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
There are no vertical positions associated with this data product.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Christine Kranenburg
Originator: Andrew C Ritchie
Originator: Brown, Jennifer (Jenna) A
Originator: Jin-Si R Over
Originator: Daniel D Buscombe
Originator: Christopher R Sherwood
Originator: Jonathan Warrick
Originator: Phillipe A Wernette
Publication_Date: 2020
Title:
Post-Hurricane Florence Aerial Imagery: Cape Fear to Duck, North Carolina, October 6-8, 2018
Geospatial_Data_Presentation_Form: dataset
Publication_Information:
Publication_Place: St. Petersburg Coastal and Marine Science Center
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/p91kb9sf
Type_of_Source_Media: Digital
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20181006
Ending_Date: 20181008
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Aerial Imagery
Source_Contribution: The data is this release is used to make SFM products.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Jennifer (Jenna) A. Brown
Originator: Christopher R. Sherwood
Originator: Marinna Martini
Originator: Christine J. Kranenburg
Originator: Jin-Si R. Over
Publication_Date: 2021
Title:
Ground Control Point Data from the Outer Banks, North Carolina, post-Hurricane Dorian, September 2019
Edition: 1.0
Geospatial_Data_Presentation_Form: tabular digital data
Online_Linkage: https://doi.org/10.5066/P9DVZC23
Type_of_Source_Media: Digital and/or Hardcopy
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20190924
Ending_Date: 20190925
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Ground Control Points
Source_Contribution:
The Ground Control Points are used in the SFM process and to assess horizontal and vertical positional accuracy.
Process_Step:
Process_Description:
On a workstation (AMD Threadripper 3960X /AsRock TRX40 Creator motherboard/256GB 3000MHz RAM) using Win10x64, all Aerial Imagery (and associated positional data) and 21 of 34 available Ground Control Points were brought into an Agisoft Metashape Pro (v. 1.6.5) project based on identification in the imagery. Only one ground control point, #34, was used as a control point to help 'lock' in the camera positions whereas the rest of the points were used as check points. See the Aerial Imagery citation metadata for Metashape Reference Settings inputs. To align in a 4D manner (see Sherwood and others, 2018) additional imagery and positions were added from 2019-08-30, 2019-09-02, 2019-09-08, 2019-09-12, and 2019-09-13 (see contact person below for imagery from the additional dates past 2018, which are in publication preparation/review). The additional imagery improves the horizontal and vertical accuracy but are not used past this initial alignment process step; similar products can be reproduced without them. The following steps were performed on the Metashape project in the geographic coordinate system NAD83(2011) in ellipsoid height following the general guidance in Over and others (2021): 1. Separate camera models and camera groups were created for each flight date. 2. Imagery (with positions) are aligned to create a point cloud using a 'High' alignment setting, keypoint limit of 70,000, tiepoint limit of 0, generic preselection selected, and reference preselection via source selected. The tiepoint accuracy was set to 1 pixel. 3. The resultant point cloud was filtered using one iteration of the 'Reconstruction uncertainty' filter at a level of 10, one iteration of the 'Projection accuracy' filter at a level of 3, and two iterations of the 'Reprojection accuracy' filer at a level of 0.3 (in the second iteration the 'fit additional corrections' option was turned on). With each filter iteration points are selected, deleted, and then the camera model optimized to refine the focal length, cx, cy, k1, k2, k3, p1, and p2 camera model coefficients. 4. Natural breaks in the final alignment product were identified based on bodies of water or the extreme northern and southern ends of a flight (PostFlorence_InletMap.jpg on the larger citation landing page https://www.sciencebase.gov/catalog/item/6037cc78d34eb1203117512d). These 'chunks' are the vicinity of the Virginia-North Carolina border (VA is used to denote this northern extent) to Oregon Inlet, Oregon Inlet to Hatteras Inlet, Hatteras Inlet to Ocracoke Inlet, Ocracoke Inlet to Ophelia Inlet, Ophelia Inlet to Beaufort Inlet, Beaufort Inlet to Bogue Inlet, Bogue Inlet to New River Inlet, and New River Inlet to Oak Island. For each chunk all aligned images and associated tie points in that section were kept and the remainder deleted.
Sherwood, C.R., Warrick, J.A., Hill, A.D., Ritchie, A.C., Andrews, B.D. and Plant, N.G., 2018. Rapid, remote assessment of Hurricane Matthew impacts using four-dimensional structure-from-motion photogrammetry. Journal of Coastal Research, 34(6), pp.1303-1316.
Source_Used_Citation_Abbreviation: Aerial Imagery
Source_Used_Citation_Abbreviation: Ground Control Points
Process_Date: 202101
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Andrew C Ritchie
Contact_Organization: U.S. Geological Survey, SOUTHWEST REGION
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Country: US
Contact_Voice_Telephone: 831-460-7454
Contact_Facsimile_Telephone: 831-427-4748
Contact_Electronic_Mail_Address: aritchie@usgs.gov
Process_Step:
Process_Description:
From the previous process step, each 'chunk' is processed as follows to create the final orthorectified products for each flight date: 1. All imagery from October 6, 7, and 8 in the aligned chunk is copied from the workstation to a new Agisoft Metashape Pro. project on the U.S Geological Survey Tallgrass high-performance computing network for processing on CPU and GPU nodes (https://www.usgs.gov/core-science-systems/sas/arc/machine-access). 2. If multiple flight dates were flown for this chunk, imagery from one date is targeted, and the rest are disabled (this is then switched for each flight date in the chunk after the final step and steps 3-7 are repeated) 3. A high quality dense point cloud is generated for the chunk with 'mild' filtering and the options to calculate point color and point confidence selected. 4. Dense point cloud is filtered using the 'Filter by Confidence' tool using the range 0-2, these points selected at this range are classified as low noise. 5. A DEM is built from the dense point cloud with interpolation enabled and without the points classified as low noise (not included in this publication). 6. An orthophoto is built from the interpolated DEM using the blending mode 'average'. 7. The orthorectified product is exported in UTM Zone 18N with a 0.25 meter cell size and integer boundary intervals. 8. Orthorectified product is turned into a cloud-optimized GeoTIFF (COG) using gdal_translate with the following command:for %i in (.\*.tif) do gdal_translate %i .\cog\%~ni_cog.tif -of COG -stats -co BLOCKSIZE=256 -co COMPRESS=LZW -co PREDICTOR=YES -co NUM_THREADS=ALL_CPUS -co BIGTIFF=YES (v. 3.1.4 accessed October 20, 2020 https://gdal.org/). Where i is the name of each geoTIFF section.
Process_Date: 202105
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Andrew C Ritchie
Contact_Organization: U.S. Geological Survey, SOUTHWEST REGION
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Country: US
Contact_Voice_Telephone: 831-460-7454
Contact_Facsimile_Telephone: 831-427-4748
Contact_Electronic_Mail_Address: aritchie@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 18
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -69.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 1
Ordinate_Resolution: 1
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: NAD83_National_Spatial_Reference_System_2011
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Three-band GeoTIFF rasters.
Entity_Type_Definition:
Pixel based raster matrix with 3 layers of information for each pixel. There are 15 RGB ortho product GeoTIFFs. The filename for each ortho product is formatted as "date_location_to_location_RGBAvg_UTM18_0.25m_cog.tif", where date is the date the images were collected (in YYYYMMDD format) and location_to_location is the specific geographic location in North Carolina of the northern extent to the southern extent, for example Beaufort_Inlet_to_Bogue_Inlet. RGBAvg indicates the blending mode in Agisoft Metashape, UTM18 indicates the horizontal datum the product was built in, 0.25m is the resolution, and cog represents that the product has been transformed into a cloud optimized GeoTIFF.
Entity_Type_Definition_Source: Producer defined
Attribute:
Attribute_Label: Band_1
Attribute_Definition: Red wavelength band
Attribute_Definition_Source: Agisoft Metashape
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 255
Attribute:
Attribute_Label: Band_2
Attribute_Definition: Green wavelength band
Attribute_Definition_Source: Agisoft Metashape
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 255
Attribute:
Attribute_Label: Band_3
Attribute_Definition: Blue wavelength band
Attribute_Definition_Source: Agisoft Metashape
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 255
Overview_Description:
Entity_and_Attribute_Overview:
There are no text attributes associated with a binary GeoTIFF image. The orthoimagery products are in 32-bit floating point GeoTIFF format. The horizontal projection is in NAD83(2011) UTM Zone 18N for all orthos, even though one of the sections is partially in Zone 17N. There are no 'no-data' values.
Entity_and_Attribute_Detail_Citation: USGS
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey - Sciencebase
Contact_Address:
Address_Type: mailing address
Address: Denver Federal Center, Building 810, Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: United States
Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov
Resource_Description:
The 15 three-band RGB-averaged cloud optimized GeoTIFF ortho products are 8-bit unsigned interger values stored with LZW compression, have 25 cm resoltuion, and represent the coast of North Carolina after Hurricane Florence on October 6, 7, and 8, 2018. The first file from north to south on October 6, 2018 is 20181006_VA_to_Oregon_Inlet_RGBAvg_UTM18_0.25m_cog.tif (1360MB). The second file from north to south on October 6, 2018 is 20181006_Oregon_Inlet_to_Hatteras_Inlet_RGBAvg_UTM18_0.25m_cog.tif (2160MB). The third file from north to south on October 6, 2018 is 20181006_Hatteras_Inlet_to_Ocracoke_Inlet_RGBAvg_UTM18_0.25m_cog.tif (682MB). The fourth file from north to south on October 6, 2018 is 20181006_Ocracoke_Inlet_to_Ophelia_Inlet_RGBAvg_UTM18_0.25m_cog.tif (873MB). The fifth and last file from north to south on October 6, 2018 is 20181006_Ophelia_Inlet_to_Beaufort_Inlet_RGBAvg_UTM18_0.25m_cog.tif (692MB). The first file from north to south on October 7, 2018 is 20181007_Oregon_Inlet_to_Hatteras_Inlet_RGBAvg_UTM18_0.25m_cog.tif (421MB). The second file from north to south on October 7, 2018 is 20181007_Hatteras_Inlet_to_Ocracoke_Inlet_RGBAvg_UTM18_0.25m_cog.tif (617MB). The third file from north to south on October 7, 2018 is 20181007_Ocracoke_Inlet_to_Ophelia_Inlet_RGBAvg_UTM18_0.25m_cog.tif (1390MB). The fourth file from north to south on October 7, 2018 is 20181007_Ophelia_Inlet_to_Beaufort_Inlet_RGBAvg_UTM18_0.25m_cog.tif (1490MB). The fifth file from north to south on October 7, 2018 is 20181007_Beaufort_Inlet_to_Bogue_Inlet_RGBAvg_UTM18_0.25m_cog.tif (913MB). The sixth file from north to south on October 7, 2018 is 20181007_Bogue_Inlet_to_New_River_Inlet_RGBAvg_UTM18_0.25m_cog.tif (573MB). The seventh and last file from north to south on October 7, 2018 20181007_New_River_Inlet_to_Oak_Island_RGBAvg_UTM18_0.25m_cog.tif (4130MB). The first file from north to south on October 8, 2018 is 20181008_VA_to_Oregon_Inlet_RGBAvg_UTM18_0.25m_cog.tif (1680MB). The second file from north to south on October 8, 2018 is 20181008_Oregon_Inlet_to_Hatteras_Inlet_RGBAvg_UTM18_0.25m_cog.tif (2250MB). The third file from north to south on October 8, 2018 is 20181008_Hatteras_Inlet_to_Ocracoke_Inlet_RGBAvg_UTM18_0.25m_cog.tif (709MB).
Distribution_Liability:
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: GeoTIFF
Format_Information_Content:
Cloud optimized GeoTIFF contains a 25 cm resolution three-band RGB averaged ortho product with 8-bit unsigned integer values stored with LZW compression. See Resource Description for individual file sizes, files as a whole are too large to be downloaded as one zip file in sciencebase.
File_Decompression_Technique: none
Transfer_Size: 1
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link is to the page with all the Hurricane Florence RBG averaged ortho products, where they can be individually downloaded; there is no link to download them all due to their large file sizes. The second link is to the landing page for the data release.
Fees: None.
Metadata_Reference_Information:
Metadata_Date: 20210602
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jin-Si Over
Contact_Organization: U.S. Geological Survey
Contact_Position: geographer
Contact_Address:
Address_Type: mailing and physical
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2269
Contact_Electronic_Mail_Address: jover@usgs.gov
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

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