Biloxi, MS (K_30088-D8) Hurricane Katrina ADS40 7.5' Quadrangle Mosaic

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Department of Agriculture, Natural Resources Conservation Service
Publication_Date: 20051007
Title:
Biloxi, MS (K_30088-D8) Hurricane Katrina ADS40 7.5' Quadrangle Mosaic
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Fort Worth,TX
Publisher: U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center
Description:
Abstract:
This dataset includes a series of quadrangle (quad) based image files that were created from a collection of GeoTIFF format natural color image tiles covering regions of Alabama, Louisiana, and Mississippi which were affected by Hurricane Katrina in late August 2005.

The raw imagery used to generate the original image tiles was simultaneously collected with airborne Global Positioning System (GPS) and Inertial Measurement Unit (IMU) data, which was used to georeference the raw imagery.  The raw imagery was rectified to a plane of constant elevation and mosaiced to generate the final image tiles.  Each original image tile provided data for a nominal 1.875 minute (in latitude and longitude) cell area.  The source imagery was obtained in September 2005 and was used to produce georeferenced, planar rectified imagery with a 1 ft. ground resolution.  Imagery was acquired at 1 ft. Ground Sample Distance (GSD) resolution.  Flight height maintained during mission was 10,000 ft. Above Ground Level (AGL).  The imagery was captured at 12-bit radiometric resolution and converted to 8-bit radiometric resolution during post processing.  The imagery was obtained and processed by all digital means beginning with data acquisition using an ADS40 digital airborne sensor.  

The individual 1.875 minute image  tiles were provided in GeoTIFF format in Geographic Coordinates (decimal degrees), NAD83.  The 1.875 minute cell area GeoTIFFS were merged into 7.5 minute quad based mosaics and compressed on a Solaris system using LizardTech GeoExpress verion 5.0.6 software applying a compression ratio (cr) or 8:1 in a batch process without any enhancements or adjustments.  It was determined that mosaics would be created for all quads in the project even when only a few of the sixteen 1.875 minute GeoTiffs required for complete quadrangle coverage of a particular quad were available.  As a result, some of the quad mosaics in this dataset do not contain full 7.5 minute image coverage.
Purpose:
The general purpose of the imagery collection and processing is to provide data for federal and state agencies to visually denote and quantify damage areas from no damage areas, and to quantify the degree of damage as heavy, moderate or light.
Supplemental_Information:
The original images were clipped to the neatline of the USGS sixteenth quadrangle boundaries with the file naming pattern of 'K_MRC#_sixteenth#'.  The K identifies the imagery as relating to Katrina, the MRC number is taken from the USGS quadrangle index, and the sixteenth number identifies which sixteenth quadrangle the image covers.  The sixteenth numbers begin with '1' in the north west corner of the quadrangle and increase to '4', then they move back to the west and down one row to '5' and increase to '8', etc., until '16' is reached in the southeast corner of the quadrangle.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20050903
Ending_Date: 20050930
Currentness_Reference:
Date of Source Imagery Acquistion
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -89.000002
East_Bounding_Coordinate: -88.874996
North_Bounding_Coordinate: 30.500002
South_Bounding_Coordinate: 30.374996
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: framework
Theme_Keyword: orthoimagery
Theme_Keyword: orthoimage
Theme_Keyword: orthophoto
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: United States
Place_Keyword: Mississippi
Place_Keyword: Harrison County
Place_Keyword: Jackson County
Place_Keyword: Biloxi Quadrangle
Access_Constraints: none
Use_Constraints:
None. Acknowledgment of the United States Army Corps of Engineers would be appreciated for products derived from these data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center
Contact_Position: Geospatial Technology Branch
Contact_Address:
Address_Type: mailing and physical address
Address:
Fort Worth Federal Center, 501 West Felix Street, Building 23, P.O. Box 6567
City: Fort Worth
State_or_Province: Texas
Postal_Code: 76115
Country: USA
Contact_Voice_Telephone: (817) 509-3400
Contact_Facsimile_Telephone: (817) 509-3469
Hours_of_Service: 8:00am to 4:30pm, Central
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 9.1.0.722
Cross_Reference:
Citation_Information:
Originator: 3001, Inc. (under contract through the U.S. Army Corps of Engineers)
Publication_Date: unpublished material
Title:
USGS Sixteenth Quadrangle Index
Geospatial_Data_Presentation_Form: vector digital data
Other_Citation_Details:
This index was used to clip the image tiles from the image strips. It was created by dividing the USGS quadrangles covering the project area into 16 equal sixteenth quads.
Cross_Reference:
Citation_Information:
Originator: United States Army Corps of Engineers, U.S. Army Topographic Engineering Center
Publication_Date: 2005
Title:
multiple 1.875 minute orthophotographs
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Alexandria, VA
Publisher: U.S. Army Corps of Engineers
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Data_Quality_Information:
Logical_Consistency_Report:
Sample points taken from overlapping areas of adjacent image strips that contributed image clips to each orthophoto tile are typically consistent to the 10-12 pixel level.
Completeness_Report:
These data cover portions of Alabama, Louisiana, and Mississippi affected by Hurricane Katrina in August 2005.   The quad mosaics were processed with available imagery, thus not all quad mosaics have complete coverage.  Additional quads within this dataset area which have not yet mosaiced may become available at a later date.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
These data are compiled to provide the most accurate product achievable within the scope of the project.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 12
Horizontal_Positional_Accuracy_Explanation:
Relative horizontal accuracy was tested by measuring points in the overlap areas between image strips.  Based on the expected accuracy of GPS / IMU solution used to georeference the imagery, this relative accuracy should be represenative of the absolute accuracy of the image strips.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: 3001, Inc. (under contract through the U.S. Army Corps of Engineers)
Publication_Date: unpublished material
Title:
Hurricane Katrina Response Imagery
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Gainesville, FL
Publisher: 3001, Inc.
Type_of_Source_Media: digital file
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20050903
Ending_Date: 20050930
Source_Currentness_Reference:
Date of source imagery
Source_Citation_Abbreviation:
Kat_Flight
Source_Contribution:
Image Aquisition for Orthophoto Production.
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center
Publication_Date: 20051007
Title:
Hurricane Katrina ADS40 7.5 Minute Quadrangle Mosaics
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Fort Worth, TX
Publisher: U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center
Source_Citation_Abbreviation:
NRCS1
Source_Contribution:
Quadrangle Based Hurricane Katrina Damage Assessment Imagery
Process_Step:
Process_Description:
The imagery was collected at an altitude of 10,000 ft AGL using an ADS40 digital sensor. Image quality was verified during the post flight review phase to minimize cloud cover.

Airborne GPS and IMU data were collected simultaneously with the imagery and merged during post processing to provide a combined position and orientation solution (POS).  The POS data was used to georeference the raw image strips.  The georefereneced image strips were planar-rectified to a constant elevation representative of the average elevation of a block.  The red, green, and blue bands were combined to produce the resulting natural color orthos.

The image strips were combined in a mosaic, and project specific tiles were clipped from the mosaic.  No feathering was applied during mosaicing, causing seams between adjacent images to be visible in some tiles.
Source_Used_Citation_Abbreviation:
Kat_Flight
Process_Date: 200509
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: 3001, Inc.
Contact_Address:
Address_Type: mailing and physical address
Address:
3601 SW 2nd Ave., Suite Y
City: Gainesville
State_or_Province: FL
Postal_Code: 32607
Contact_Voice_Telephone: 352-379-3001
Process_Step:
Process_Description:
MrSID compression of the GeoTiffs of the September 2005 Hurricane Katrina natural color images tiles covering impacted areas of Alabama, Louisiana, and Mississippi were batch processed.  For the sake of expedience, no spectral enhancements or tonal adjustments were made in the processing of the data.  LizardTech GeoExpress 5.6.0 software was processed on a Sun Solaris system.  The compression ratio was 8:1.
Source_Used_Citation_Abbreviation:
NRCS1
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center
Contact_Position: Geospatial Technology Branch
Contact_Address:
Address_Type: mailing and physical address
Address:
Federal Center, 501 W. Felix St., Bldg. 23, P.O. Box 6567
City: Fort Worth
State_or_Province: TX
Postal_Code: 76115
Country: US
Contact_Voice_Telephone: (817) 509-3400
Contact_Facsimile_Telephone: (817) 509-3469
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 42275
Column_Count: 42275
Vertical_Count: 1
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000002
Longitude_Resolution: 0.000002
Geographic_Coordinate_Units: Decimal degrees
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
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Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
The ADS40 Sensor provides three band imagery with pixel values between 0-255. The data are presented as natural color imagery with a number from 0-255 assigned to each pixel. This digital number refers to a color look-up table which will contain the RGB red, blue and green values.
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center
Contact_Position: Geospatial Technology Branch
Contact_Address:
Address_Type: mailing and physical address
Address:
Fort Worth Federal Center, 501 West Felix Street, Building 23, P.O. Box 6567
City: Fort Worth
State_or_Province: Texas
Postal_Code: 76115
Country: USA
Contact_Voice_Telephone: (817) 509-3400
Contact_Facsimile_Telephone: (817) 509-3469
Hours_of_Service: 8:00 am to 4:30 pm, Central
Resource_Description: ADS40 7.5 minute quadrangle based mosaics of 2005 Hurricane Katrina affected area
Distribution_Liability:
The data represents the results of data collection/processing for a specific U.S. Army Corps of Engineers activity and indicates the general existing conditions. As such, it is only valid for it's intended use, content, time, and accuracy specifications. The user is responsible for the results of any application of the data for other than it's intended purpose.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 278.646
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://datagateway.nrcs.usda.gov
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20051024
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Metadata_Reference_Information:
Metadata_Date: 20051118
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center
Contact_Position: Geospatial Technology Branch
Contact_Address:
Address_Type: Mailing & Physical Address
Address:
Federal Center, 501 W. Felix St., Bldg. 23, P.O. Box 6567
City: Fort Worth
State_or_Province: Texas
Postal_Code: 76115
Contact_Voice_Telephone: (817) 509-3400
Contact_Facsimile_Telephone: (817) 509-3469
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile
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