USGS High Resolution State Orthoimagery for the Louisiana Coastal Area

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2009
Title:
USGS High Resolution State Orthoimagery for the Louisiana Coastal Area
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: USGS State Orthoimagery
Issue_Identification: 0.1
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: U.S. Geological Survey
Online_Linkage: <http://seamless.usgs.gov>
Description:
Abstract:
"This project consists of two components, aerial imagery acquisition and digital orthophoto production, covering a project site within portions of the states of Louisiana, Mississippi, and Alabama. The project area is comprised of approximately 38,000 square miles. Wetlands restoration efforts conducted by the Coastal Wetlands Planning, Protection, and Restoration Act (CWPPRA) in Louisiana use monitoring techniques to determine the effectiveness of these efforts. The Coastwide Reference Monitoring System (CRMS) is being developed to assist in a multiple reference approach that uses aspects of hydrogeomorphic functional assessments and probabilistic sampling for monitoring. As part of CRMS, digital orthophoto quarter quadrangles (DOQQs) for the coastal region of Louisiana were created. A DOQQ is a raster image in which displacement in the image caused by sensor orientation and terrain relief has been removed and combines the image characteristics of a photo with geometric qualities of a map. The DOQQs generated for this project were created using digital mapping camera (DMC) technology. This technology allows for the creation of four components: digital imagery (non-georeferenced pan 1 meter and non-georeferenced Red, Green, Blue, and IR 4Band 1 meter), aerotriangulation solution for stereo creation, stereo pair generation (4.75 meter stereo images), and 4Band digital orthophotography (1 meter 4Band DOQQs)." An orthoimage is remotely sensed image data in which displacement of features in the image caused by terrain relief and sensor orientation have been mathematically removed. Orthoimagery combines the image characteristics of a photograph with the geometric qualities of a map.
Purpose:
"Data from this project are being developed primarily to support multi-use applications, including environmental impact management, coastal wetlands monitoring, homeland security and the business of government. The CWPPRA Task Force will use the data as part of Coastwide Reference Monitoring System (CRMS). These data depict geographic features on the surface of the earth. DOQQs serve a variety of purposes, from interim base maps to field references for earth science investigations and analysis. For the CRMS project, the DOQQs will be used to map coastal wetlands for the CWPPRA monitoring program activities." A digital orthoimage is a geometrically accurate photographic record of landscape conditions at the time of the corresponding aerial photography. As such, High Resolution Orthoimagery is useful for a variety of applications, such as environmental monitoring, facility engineering/maintenance, city/county planning, property line review, etc. The digital orthoimage can be used alone or as a raster basemap for corresponding vector line mapping. The detailed focus of High Resolution Orthoimagery provides emergency responders critical information in determining the best evacuation routes, alternative routes and safe access to aid. High Resolution Orthoimagery assists law enforcement personnel in determining the best locations to place surveillance cameras in high-traffic urban areas and popular attractions. The data assists Federal, State and local emergency responders in planning for homeland security efforts. This data also supports The National Map.
Supplemental_Information:
"This dataset was produced in accordance with USGS Standards for Digital Orthophotos, 1996 12. Review was provided by the USGS National Geospatial Technical Operations Center (NGTOC)." Information in quotation marks is taken directly from original metadata.Spatial-specific information not available
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20081018
Ending_Date: 20081109
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As necessary
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate:-89.9535471775162
East_Bounding_Coordinate:-89.8815846745481
North_Bounding_Coordinate:29.4805049168137
South_Bounding_Coordinate:29.4364899718924
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: DOQ
Theme_Keyword: digital orthophoto
Theme_Keyword: digital orthophotoquad
Theme_Keyword: aerial photograph
Theme_Keyword: rectified photograph
Theme_Keyword: orthophoto
Theme_Keyword: quarter-quadrangle orthophoto
Theme_Keyword: 1-meter orthophoto
Theme_Keyword: 3.75 x 3.75 minute orthophoto
Theme_Keyword: 4Band DOQQ
Theme_Keyword: 4Band Orthophoto
Theme_Keyword: 4.75 meter stereo imagery
Theme_Keyword: digital mapping camera
Theme_Keyword: mapping
Theme_Keyword: wetlands
Theme_Keyword: Coastwide Reference Monitoring System
Theme_Keyword: CRMS
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Category
Theme_Keyword: imageryBaseMapsEarthCover
Theme_Keyword: 010
Theme_Keyword: geoscientificInformation
Theme_Keyword: 008
Theme_Keyword: location
Theme_Keyword: 013
Theme:
Theme_Keyword_Thesaurus:
American Society of Photogrammetry and RemoteSensing
Theme_Keyword: National Standards for Spatial Digital Accuracy (NSSDA)
Place:
Place_Keyword_Thesaurus:
U.S. Department of Commerce, 1995, Countries, dependencies, areas of special sovereignty, and their principal administrative divisions, Federal Information Processing Standard 10-4,): Washington, D.C., National Institute of Standards and Technology
Place_Keyword: United States
Place_Keyword: U.S.
Place_Keyword: US
Place:
Place_Keyword_Thesaurus:
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D.C., National Institute of Standards and Technology
Place_Keyword: LA
Place:
Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: State of Louisiana
Access_Constraints:
Any downloading and use of these data signifies a user's agreement to comprehension and compliance of the USGS Standard Disclaimer. Insure all portions of metadata are read and clearly understood before using these data in order to protect both user and USGS interests.
Use_Constraints:
There is no guarantee of warranty concerning the accuracy of the data. Users should be aware that temporal changes may have occurred since this data set was collected and that some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data, nor to imply that changes made were approved or endorsed by the U.S. Geological Survey. Please refer to <http://www.usgs.gov/privacy.html> for the USGS disclaimer.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Position: Customer Services Representative
Contact_Address:
Address_Type: mailing and physical address
Address: USGS Earth Resources Observation and Science Center
Address: 47914 252nd Street
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 605/594-6151
Contact_Voice_Telephone: 1-800-252-4547
Contact_TDD/TTY_Telephone: 605/594-6933
Contact_Facsimile_Telephone: 605/594-6589
Contact_Electronic_Mail_Address: custserv@usgs.gov
Hours_of_Service: 0800 - 1600 CT, M - F (-6h CST/-5h CDT GMT)
Data_Set_Credit:
Produced by Photo Science, Inc for the U.S. Geological Survey, National Wetlands Research Center. The following partners provided funding or services for the collection and production of these data: The Coastal Wetlands Planning, Protection, and Restoration Act (CWPPRA) Task Force; the Coastwide Reference Monitoring System (CRMS); the U.S. Geological Survey
Security_Information:
Security_Classification_System: None
Security_Classification: Unclassified
Security_Handling_Description: N/A
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
"Imagery was captured using a Z/I DMC Sensor. Attribute data consists of four bands of eight bit data. Valid values for each color band range from 0 to 255. Image brightness values may deviate from the brightness values of the original images because of image value interpolation during the scanning and rectification processes as well as histogram modifications made to produce tonal-balanced imagery. Radiometric differences may exist between adjacent orthoimage files; these are due primarily to differences in source image capture dates and sun angles along flight lines. These differences can be observed in an image's general lightness or darkness when it is compared to adjacent orthoimage file coverages.
Logical_Consistency_Report:
All DOQQ header data and image file sizes are validated using USGS software before being archived. This validation process ensures correct physical format and field values for header elements. Logical relationships between header elements are tested. Overlap regions between individual DOQQs are visually inspected for excessive horizontal displacement."
Completeness_Report:
"The area of coverage for a standard USGS digital quarter quadrangle is 3.75 minutes of latitude by 3.75 minutes of longitude plus 300 meters overedge. DOQQ images are visually inspected for completeness to ensure that no gaps or image misplacements exist in the 3.75' image area or in overedge coverage. DOQQ images can be derived by mosaicking multiple images to ensure complete coverage. DOQQ's are cloud free within the 3.75' image area. National Aerial Photography Program (NAPP) source photography is leaf-off in deciduous vegetation regions."
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
"The DOQQ horizontal positional accuracy and the assurance of that accuracy depend, in part, on the accuracy of the data inputs to the rectification process. These inputs consist of the digital elevation model (DEM), aerotriangulation control and methods, sensor calibration, and aerial imagery that meet National Aerial Photography Program (NAPP) standards. The vertical accuracy of the verified USGS format DEM is equivalent to or better than a USGS level 1 or 2 DEM, with a root mean square error (RMSE) of no greater than 7.0 meters. Field control is acquired by third-order class 1 or better survey methods sufficiently spaced to meet National Map Accuracy Standards (NMAS) for 1:12,000-scale products. Photo-identifiable ground test points are identified in the orthorectified image and measured. The image coordinates are compared to the known positions of these points and the radial differences for each point computed. A radial RMSE value is then calculated for the DOQQ. Note: Adjacent DOQQ's, when displayed together in a common planimetric coordinate system, may exhibit positional discrepancies across common DOQQ boundaries. Linear features, such as streets, may be offset between images. However, these edge mismatches still conform to NMAS positional horizontal accuracy requirements."
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 3.34
Horizontal_Positional_Accuracy_Explanation:
Federal Geographic Data Committee, 1998, Geospatial Positioning Accuracy Standard, Part 3, National Standard for Spatial Data Accuracy, FGDC-STD-007.3-1998
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: There is no vertical accuracy component to orthophotography.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Photo Science, Inc.
Publication_Date: 2008
Title: Aerial Photography
Geospatial_Data_Presentation_Form: remote-sensing image
Type_of_Source_Media: DMC Imagery
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20081018
Ending_Date: 20081109
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: PHOTO
Source_Contribution:
DMC Imagery Flown at 25,000 feet above average ground elevation. Provides the imagery for the digital orthoimage.
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: Unknown
Title: 7.5 minute USGS Digital Elevation Model
Geospatial_Data_Presentation_Form: gridded digital data
Type_of_Source_Media: digital file
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1989
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: DEM
Source_Contribution:
USGS format elevation data covering a 7.5- x 7.5-minute quadrangle in extent. Used to provide ground elevations for orthorectification process.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Photo Science, Inc.
Publication_Date: Unpublished material
Title: Airborne GPS
Type_of_Source_Media: digital file
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20081018
Ending_Date: 20081109
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: ABGPS
Source_Contribution:
Airborne GPS positions were computed by Photo Science, Inc. and used as control in the aerotriangulation process. Ground checkpoints were provided by USGS and used to verify the accuracy of the airborne GPS.
Process_Step:
Process_Description:
"The DMC images, ABGPS data, ground check point data, and camera calibration data were used as external orientation parameters to provide the geospatial control for each photograph during orthorectification. Vertical control for the orthorectification process was obtained from existing USGS Digitial Elevation Models (DEM). During the orthorectification process, elevation data were extracted and resampled to meet user-specified intervals and bounds. The orthorectified imagery is resampled to a 1-meter ground resolution with a ground extent of 3.75 minutes in latitude and in longitude. An overedge of 300 meters beyond the extreme primary and secondary corner ticks was included in the DOQQ. Quarterquad corner ticks, representing both NAD83 and NAD27 horizontal datums are burned into the DOQQ image. An easily viewable ASCII text header is added to the DOQQ. This header is padded to the same length as a line of image data. The header contains information on structure, display, georefencing, and production information. Images were written out using a 8-bit 4Band GeoTIFF format. Orthoproduction was performed using the Intergraph Ortho Pro. Seamlines were auto generated and tone balanced between frames prior to cutting out into the DOQQ's. All orthoimages are individually inspected for content, misalignments along mosaic seamlines, and void areas. Source information was collected and verified manually during the production process."
Process_Date: 20081210
Process_Step:
Process_Description:
The original metadata were imported and updated for display through The National Map Seamless Server at <http://seamless.usgs.gov> The metadata are available in several formats: HTML, TEXT, XML, FAQ and SGML.
Process_Date: 200905
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Position: Customer Service Representative
Contact_Address:
Address_Type: mailing and physical address
Address: USGS Earth Resources Observation and Science Center
Address: 47914 252nd Street
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 605-594-6151
Contact_Voice_Telephone: 1-800-252-4547
Contact_TDD/TTY_Telephone: 605-594-6933
Contact_Facsimile_Telephone: 605-594-6589
Contact_Electronic_Mail_Address: custserv@usgs.gov
Hours_of_Service: 0800 - 1600 CT, M - F (-6h CST/-5h CDT GMT)
Contact_Instructions:
The USGS point of contact is for questions relating only to the data display and download from this web site. For questions regarding data content and quality, refer to original processor.
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 4711
Column_Count: 6869
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 16
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -87.000000
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: 1.000000
Ordinate_Resolution: 1.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 1.000000
Altitude_Distance_Units: meters
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Natural color orthoimagery is organized in three color bands or channels which represent the red, green, and blue portions of the spectrum. Each image pixel is assigned a triplet of numeric values, one for each color band. Numeric values range from 0 to 255. Areas where data is incomplete due to lack of full image coverage are represented with the numeric value of 0.
Entity_and_Attribute_Detail_Citation:
U.S. Department of the Interior, U.S. Geological Survey, 1999, Standards for Digital Orthoimagery: Reston, VA
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Position: Customer Services Representative
Contact_Address:
Address_Type: mailing and physical address
Address: Earth Resources Observation and Science Center
Address: 47914 252nd Street
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 605/594-6151
Contact_Voice_Telephone: 1-800-252-4547
Contact_TDD/TTY_Telephone: 605/594-6933
Contact_Facsimile_Telephone: 605/594-6589
Contact_Electronic_Mail_Address: custserv@usgs.gov
Hours_of_Service: 0800 - 1600 CT, M - F (-6h CST/-5h CDT GMT)
Contact_Instructions:
The USGS point of contact is for questions relating only to the data display and download from this web site. For questions regarding data content and quality, refer to the original processor.
Resource_Description: Downloadable Data
Distribution_Liability:
Although these data have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made by the USGS regarding the use of the data on any other system, nor does the act of distribution constitute any such warranty. Data may have been compiled from various outside sources. Spatial information may not meet National Map Accuracy Standards. This information may be updated without notification. The USGS shall not be liable for any activity involving these data, installation, fitness of the data for a particular purpose, its use, or analyses results.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: TIFF
Format_Version_Number: ArcGIS 9.3
Format_Specification: Raster
Transfer_Size: 0.001
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://seamless.usgs.gov>
Access_Instructions:
The URL <http://seamless.usgs.gov> provides a map interface that allows for data downloads within a customer defined area of interest. Zoom tools are available that can be used to investigate areas of interest on the map interface. The download tool allows the customer to capture layers from the map, utilizing The National Map Seamless Server process for downloading. A request summary page is then generated with the download layers listed. By clicking the "download" button on the summary page, a zipped file will be generated that can be saved on the customer's computer. The file can then be unzipped and imported into various user software applications.
Online_Computer_and_Operating_System: Not available for dissemination
Fees: None
Turnaround: Variable
Technical_Prerequisites:
ESRI ArcGIS Suite and/or Arc/Info or other compatible software, and supporting operating systems.
Available_Time_Period:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2009
Ending_Date: unknown
Metadata_Reference_Information:
Metadata_Date: 20090521
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Position: Customer Services Representative
Contact_Address:
Address_Type: mailing and physical address
Address: USGS Earth Resources Observation and Science Center
Address: 47914 252nd Street
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198-0001
Country: USA
Contact_Voice_Telephone: 605/594-6151
Contact_Voice_Telephone: 1-800-252-4547
Contact_TDD/TTY_Telephone: 605/594-6933
Contact_Facsimile_Telephone: 605/594-6589
Contact_Electronic_Mail_Address: custserv@usgs.gov
Hours_of_Service: 0800 - 1600 CT, M - F (-6h CST/-5h CDT GMT)
Contact_Instructions:
The above is the contact information for the Earth Resources Observation and Science Center in Sioux Falls, SD. This is the digital data storage and distribution center for the USGS.
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: None
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.9.6 on Thu May 21 09:31:50 2009