2004 Florida Greenway ADS40 Orthoimagery and Digital Elevation Model

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator:
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC)
Publication_Date: 20060914
Title:
2004 Florida Greenway ADS40 Orthoimagery and Digital Elevation Model
Publication_Information:
Publication_Place: Charleston, SC
Publisher: Online_Linkage <http://www.csc.noaa.gov/digitalcoast>
Description:
Abstract:
EarthData International collected ADS-40/ISTAR-derived orthophotos at a 50 centimeter pixel resolution to produce natural color and color infrared ortho photo tiles. The period of aerial collection was 14 DEC 2004 to 15 DEC 2004 with a reflight of several lines conducted on 1 FEB 2006. During the time of image acquisition two dual frequency GPS receivers were utilized. One receiver was operated on board the aircraft with the dual frequency antenna located directly over the camera. The second receiver was used as a base station.These receivers were in constant operation during the imagery mission and GPS phase data was collected at an epoch rate of 1 second. The airborne GPS data and IMU were used in combination with ground surveyed points to control the imagery. The imagery fully encompasses the project boundary. The DTM deliverable for this project was manually compiled using stereo pairs generated from the orthophoto flight. The DEM masspoint grid used to rectify the orthophotography was derived from the compiled DTM. All data produced for this project was referenced horizontally to NAD83, and vertically to Mean Sea Level(MSL), NAVD 88 in UTM meters.
Purpose:
This data was collected and derived for the NOAA Coastal Services Center in support of mapping efforts for the Greenway Corridor project area in Florida. This data set should be accompanied by both an associated metadata record and a data deliver index that includes unique database information for each tile of the data set.
Supplemental_Information: None
Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 20041215
Single_Date/Time:
Calendar_Date: 20060201
Currentness_Reference: Ground Condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -086.227158
East_Bounding_Coordinate: -085.019485
North_Bounding_Coordinate: +30.674047
South_Bounding_Coordinate: +29.691933
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: imageryBaseMapsEarthCover
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Remotely Sensed Imagery/Photos
Theme_Keyword: Orthos
Theme_Keyword: Orthoimage
Theme_Keyword: Digital Orthophotography
Theme_Keyword: Aerial Photography
Theme_Keyword: ADS40
Theme_Keyword: Digital Terrain Model
Theme_Keyword: Digital Elevation Model
Theme_Keyword: Orthos
Place:
Place_Keyword_Thesaurus: Keywords
Place_Keyword: Florida
Place_Keyword: Panhandle
Place_Keyword: Greenway Corridor
Access_Constraints: NONE
Use_Constraints: NONE
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: EarthData International, Inc.
Contact_Person: Harold Rempel
Contact_Position: Direcctor of Program Management
Contact_Address:
Address_Type: mailing and physical
Address: 7320 Executive Way
City: Frederick
State_or_Province: MD
Postal_Code: 21704
Country: USA
Contact_Voice_Telephone: 301-948-8550
Contact_Facsimile_Telephone: 301-963-2064
Contact_Electronic_Mail_Address: hrempel@earthdata.com
Hours_of_Service: 9:00am - 4:00pm
Data_Set_Credit: NOAA Coastal Services Center
Security_Information:
Security_Handling_Description: None
Security_Classification: Unclassified
Security_Classification_System: None
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.0.0.535
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Orthophotos were created from the aerial photography using compiled DEM data and photo triangulation data. The ground control for this project consisted of 25 vertical/horizontal photo-identifiable points.The ground control is referenced horizontally to NAD83, and vertically to Mean Sea Level(MSL), NAVD 88 in UTM meters. Airborne GPS data was collected during the acquisition mission for each flight line. The control points were measured by technicians using ISTAR software. The final bundle adjustment of this block was solved using airborne GPS. During GPS data collection, the Positional Dilution of Precision (PDOP) was monitored and held at or below 3.5 when possible. Imagery was mosaiced to provide seamless coverage. Images were then radiometrically corrected for tone balance and geometry quality control along tile edges for terrain and linear features.
Logical_Consistency_Report:
Compliance with the accuracy standard was ensured by the collection of photo identifiable GPS ground control before and after the acquisition of aerial imagery. The following checks were performed. 1. The ground control and airborne GPS data stream were validated through a fully analytical bundle aerotriangulation adjustment. 2. The DEM data was checked against the project control. The technician visited and confirmed the accuracy of the points during initial processing 3. Digital orthophotography was validated through an inspection of edge matching and visual inspection for image quality. 4. Planimetry was validated through an inspection of edge matching and visual inspection for data quality.
Completeness_Report:
The following methods are used to assure imagery accuracy. 1. Use of IMU and ground control network utilizing GPS techniques. 2. Use of airborne GPS in conjunction with the acquisition of imagery. The following software is used for validation of the 1. Aerotriangulation - ISTAR 2. DEM data - photogrammetrically compiled 3. Digital Orthophotography - ISTAR The following software was used for the validation. 1. Bentley - Microstation 2. ISTAR 3. ZI OrthoPro 4. ESRI - ArcInfo 5. EarthData Proprietary software
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The digital mapping products fully comply with ASPRS Class 1 standards for production of orthophotos at a scale of 1/2400 with an orthophoto ground pixel resolution of 50 centimeters .
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The DEM and DTM fully comply with the contracted specification of 50-centimeters RMSE in the vertical.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: EarthData Aviation
Publication_Date: 20060201
Title: Florida Greenway Corridor. Aerial Acquisition
Source_Scale_Denominator: 2400
Type_of_Source_Media: external hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 20041215
Single_Date/Time:
Calendar_Date: 20060201
Source_Currentness_Reference: Ground Condition
Source_Citation_Abbreviation: Aerial Acquisittion
Source_Contribution:
The aerial imagery acquisition for the Florida Greenway Corridor was flown to support the creation of digital orthophotography with a 50 centimeter pixel. The imagery was acquired in four sorties at 15,700 feet AMT, using the Leica ADS40 sensors, SP14.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Terrasurv Inc.
Publication_Date: 20050225
Title: Florida Greenway Digital Orthophoto Ground Control
Geospatial_Data_Presentation_Form: model
Source_Scale_Denominator: 2400
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20060313
Source_Currentness_Reference: Publication Date
Source_Citation_Abbreviation: Ground Control
Source_Contribution:
Terrasurv Inc. was contracted by EarthData to provide survey services in the NW Greenway located in Bay, Calhoun, Franklin, Gulf, Walton and Washington Counties, Florida. Digital aerial imagery (Leica ADS-40) observations were made for the project.Terrasurv utilized the Global Positioning System (GPS) to establish the control network. 1) The photo control stations were established post flight; therefore all new stations are photo-identifiable points. No permanent stations were set. There were a total of 25 new photo identities established. In addition, there were 3 temporary base points and the airborne GPS (ABGPS) base station used by the flight crew. 2) 17 additional photo identities were obtained in December of 2005 to support the reflight of several flight lines.
Source_Information:
Source_Citation:
Citation_Information:
Originator: EarthData International Inc
Publication_Date: 20060427
Title: Florida Greenway DTM and DEM
Geospatial_Data_Presentation_Form: map
Source_Scale_Denominator: 30 meter and 2 meter grids
Type_of_Source_Media: external hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20060427
Source_Currentness_Reference: Ground Condition
Source_Citation_Abbreviation: DTM and DEM
Source_Contribution:
Photgrammetrically compiled DTM was used for the bare earth ground elevation dataset deliverable of this project. A gridded, DEM was derived from this datset to rectify the orthophotography for this project. Stereo imagery generated from the ADS40 flight data was used for the photogrammetric collection.
Process_Step:
Process_Description:
The airborne GPS data were processed and integrated with the IMU. The results were imported into the ISTAR system for use in the aerotriangulation. The ADS40 imagery was downloaded onto the EarthData server and brought over to the UNIX based ISTAR system. The ground control was used in conjunction with the processed ABGPS results for the aerotriangulation. The properly formatted ISTAR results were used for subsequent processing.
Source_Used_Citation_Abbreviation: Aerotriangulation
Process_Date: 20050616
Source_Produced_Citation_Abbreviation: AT
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: EarthData International
Contact_Person: Harold Rempel
Contact_Position: Program Manager
Contact_Address:
Address_Type: mailing and physical
Address: 7320 Executive Way
City: Frederick
State_or_Province: Maryland
Postal_Code: 21704
Country: USA
Contact_Voice_Telephone: 301-948-8550
Contact_Facsimile_Telephone: 301-963-2064
Contact_Electronic_Mail_Address: hrempel@earthdata.com
Hours_of_Service: Mon-Fri 9:00am to 5:00pm
Process_Step:
Process_Description:
This process describes the import and QC of the photogrammetrically-derived DEM surface from stereo pairs for use in the ISTAR processing system. 1. Using the DEM data set, the technician performed a visual inspection of the data to verify that the flight lines met correctly. The technician also verified that there were no voids, and that the data covered the project limits. The technician then selected a series of areas from the dataset and inspected them where adjacent flight lines met. A process, which utilizes 3-D Analyst and EarthData's proprietary software was run to detect and color code the differences in elevation values and profiles. The technician reviewed this information and located the areas that contained systematic errors or distortions that were introduced by the auto correlation. 2. Systematic distortions highlighted in step 1 were removed and the data were re-inspected. Corrections and adjustments can involve the application of angular deflection or compensation for curvature of the ground surface that can be introduced by crossing from one type of land cover to another. 3.The data were checked against the control network to ensure that vertical requirements were maintained.
Source_Used_Citation_Abbreviation: Digital Elevation Model
Process_Date: 20050622
Source_Produced_Citation_Abbreviation: DEM
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: EarthData International
Contact_Person: Harold Rempel
Contact_Position: Program Manager
Contact_Address:
Address_Type: mailing and physical
Address: 7320 Executive Way
City: Frederick
State_or_Province: Maryland
Postal_Code: 21704
Country: USA
Contact_Voice_Telephone: 301-948-8550
Contact_Facsimile_Telephone: 301-963-2064
Contact_Electronic_Mail_Address: hrempel@earthdata.com
Hours_of_Service: Mon-Fri 8:30 am to 5:00 pm
Process_Step:
Process_Description:
The digital orthophotography is comprised 50 centimeter pixel Ground Orthos. Once the DEM data was integrated into the ISTAR system the initial radiometric adjustments were performed on the imagery for each flight line attempting to reach the best possible histogram. The rectification process was run using the processed DEM surface and the radiometrically balanced imagery on each flight line. A second set of radiometric adjustments were made and mosaic lines were placed. QA/QC was performed looking for smears and other indications of problems within the digital orthophoto creation process. The final imagery data set is removed from the ISTAR environment in a process called "packaging" where the individual tiles are created. The created tiles are reviewed again for anomalies and interactive radiometric adjustment applied where needed. The final product was GeoTIFF format digital orthos.
Source_Used_Citation_Abbreviation: Digital Orthophotos
Process_Date: 20050630
Source_Produced_Citation_Abbreviation: Digital Orthos
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: EarthData International
Contact_Person: Harold Rempel
Contact_Position: Program Manager
Contact_Address:
Address_Type: mailing and physical
Address: 7320 Executive Way
City: Frederick
State_or_Province: Maryland
Postal_Code: 21704
Country: USA
Contact_Voice_Telephone: 301-948-8550
Contact_Facsimile_Telephone: 301-963-2064
Contact_Electronic_Mail_Address: hrempel@earthdata.com
Hours_of_Service: Mon-Fri 8:30 am to 5:00 pm
Cloud_Cover: 0
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 10000
Column_Count: 10000
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Transverse Mercator
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -087.000000
Latitude_of_Projection_Origin: +00.000000
False_Easting: 500000.0
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.500000
Ordinate_Resolution: 0.500000
Planar_Distance_Units: Meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257222101
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Leica ADS40 sensors Push-broom Cameras SP14 50 centimeter pixel resolution Color and color IR
Entity_and_Attribute_Detail_Citation: Not Applicable
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Person: Clearinghouse Manager
Contact_Position: Contracting Officer's Representative
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: South Carolina
Postal_Code: 29405
Country: USA
Contact_Voice_Telephone: 843-740-1200
Contact_Electronic_Mail_Address: clearinghouse@noaa.gov
Hours_of_Service: 8:00am - 5:00pm
Resource_Description: Downloadable Data
Distribution_Liability:
Users must assume responsibility to determine the usuability of these data.
Custom_Order_Process: Custom data creation available by contract
Technical_Prerequisites: All imagery is supplied in GeoTIFF format
Metadata_Reference_Information:
Metadata_Date: 20060914
Metadata_Review_Date: 20091203
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Person: Metadata Specialist
Contact_Position: Metadata Specialist
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: South Carolina
Postal_Code: 29405
Country: USA
Contact_Voice_Telephone: 843-740-1200
Contact_Facsimile_Telephone: 843-740-1224
Contact_Electronic_Mail_Address: clearinghouse@noaa.gov
Hours_of_Service: 8:00am - 5:00pm
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None
Generated by mp version 2.9.1 on Mon Mar 21 10:12:23 2011