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FIPS 28001, Ortho Rectification, Quarter Quadrangle, Mosaic, Aerial Compliance, Adams, Compliance, MrSID, Compression, Digital Ortho Rectified Image, farming, Mississippi, NAIP, Adams CO., MS FSA, JPEG 2000
The NAIP imagery is typically available for distribution within 60 days of the end of a flying season and is intended to provide current information of agricultural conditions in support of USDA farm programs. For USDA Farm Service Agency, the 1 meter and 1/2 meter GSD product provides an ortho image base for Common Land Unit boundaries and other data sets. The NAIP imagery is generally acquired in projects covering full states in cooperation with state government and other federal agencies who use the imagery for a variety of purposes including land use planning and natural resource assessment. The NAIP is also used for disaster response often providing the most current pre-event imagery.
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP acquires digital ortho imagery during the agricultural growing seasons in the continental U.S.. A primary goal of the NAIP program is to enable availability of ortho imagery within one year of acquisition. The NAIP provides two main products: 1 meter ground sample distance (GSD) ortho imagery rectified to a horizontal accuracy within +/- 5 meters of reference digital ortho quarter quads (DOQQ's) from the National Digital Ortho Program (NDOP) or from the National Agriculture Imagery Program (NAIP); 1 meter or 1/2 meter GSD ortho imagery rectified within
+/- 4 meters to true ground. The tiling format of NAIP imagery is based on a 3.75' x 3.75' quarter quadrangle with a 300 pixel buffer on all four sides. The NAIP imagery is formatted to the UTM coordinate system using the North American Datum of 1983 (NAD83). The NAIP imagery may contain as much as 10% cloud cover per tile. This file was generated by compressing NAIP imagery that covers the county extent. Two types of compression may be used for NAIP imagery: MrSID and JPEG 2000. The target value for the compression ratio is 15:1 for the 1 meter imagery and 60:1 for the 60cm imagery.
There are no credits for this item.
None, The USDA-FSA Aerial Photography Field Office asks to be credited in derived products. If defects are found in the NAIP imagery during the 1 year warranty period such as horizontal offsets, replacement imagery may be provided. Imagery containing defects that require the acquisition of new imagery, such as excessive cloud cover, specular reflectance, etc., will not be replaced within a NAIP project year.
West | -91.692411 | East | -91.111794 |
North | 31.819584 | South | 31.177814 |
Maximum (zoomed in) | 1:5,000 |
Minimum (zoomed out) | 1:50,000 |
ArcGIS Metadata ►
THEMES OR CATEGORIES OF THE RESOURCE farming
PLACE KEYWORDS FIPS 28001, Adams, Mississippi, Adams CO., MS FSA
THESAURUS ►
TITLE Geographic Names Information System
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THEME KEYWORDS Ortho Rectification, Quarter Quadrangle, Mosaic, Aerial Compliance, Compliance, MrSID, Compression, Digital Ortho Rectified Image, farming, NAIP, JPEG 2000
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TITLE USDA-FSA-APFO Digital Ortho Mosaic
PUBLICATION DATE 2016-10-20
PRESENTATION FORMATS * digital map
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RESPONSIBLE PARTY
ORGANIZATION'S NAME USDA_FSA_APFO Aerial Photography Field Office
CONTACT'S ROLE publisher
CONTACT INFORMATION ►
ADDRESS
DELIVERY POINT Salt Lake City, Utah
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RESPONSIBLE PARTY
ORGANIZATION'S NAME USDA-FSA-APFO
CONTACT'S ROLE originator
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DATASET LANGUAGES English (UNITED STATES)
STATUS completed
SPATIAL REPRESENTATION TYPE * grid
GRAPHIC OVERVIEW
FILE NAME None
FILE DESCRIPTION None
FILE TYPE None
ArcGIS 10.4.1.5686
ARCGIS ITEM PROPERTIES
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EXTENT
GEOGRAPHIC EXTENT
BOUNDING RECTANGLE
WEST LONGITUDE -91.692411
EAST LONGITUDE -91.111801
SOUTH LATITUDE 31.17782
NORTH LATITUDE 31.819584
EXTENT DESCRIPTION
Photography Source Image Dates.
TEMPORAL EXTENT
DATE AND TIME 2016-10-20
EXTENT
GEOGRAPHIC EXTENT
BOUNDING RECTANGLE
EXTENT TYPE Extent used for searching
EXTENT IN THE ITEM'S COORDINATE SYSTEM
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POINT OF CONTACT
ORGANIZATION'S NAME USDA-FSA Aerial Photography Field Office
CONTACT'S ROLE point of contact
CONTACT INFORMATION ►
PHONE
VOICE 801-844-2922
FAX 801-956-3653
ADDRESS
TYPE both
DELIVERY POINT 2222 West 2300 South
CITY Salt Lake City ADMINISTRATIVE AREA Utah POSTAL CODE 84119-2020 COUNTRY US
E-MAIL ADDRESS apfo.sales@slc.usda.gov
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RESOURCE MAINTENANCE
UPDATE FREQUENCY irregular
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LEGAL CONSTRAINTS
LIMITATIONS OF USE
In no event shall the creators, custodians, or distributors of this information be liable for any damages arising out of its use (or the inability to use it).
OTHER CONSTRAINTS
There are no limitations for access.
CONSTRAINTS LIMITATIONS OF USE
None, The USDA-FSA Aerial Photography Field Office asks to be credited in derived products. If defects are found in the NAIP imagery during the 1 year warranty period such as horizontal offsets, replacement imagery may be provided. Imagery containing defects that require the acquisition of new imagery, such as excessive cloud cover, specular reflectance, etc., will not be replaced within a NAIP project year.
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ARCGIS COORDINATE SYSTEM
PROJECTED COORDINATE SYSTEM
WELL-KNOWN IDENTIFIER 26915
X ORIGIN -5120900
Y ORIGIN -9998100
XY SCALE 450445547.3910538
Z ORIGIN -100000
Z SCALE 10000
M ORIGIN -100000
M SCALE 10000
XY TOLERANCE 0.001
Z TOLERANCE 0.001
M TOLERANCE 0.001
HIGH PRECISION true
LATEST WELL-KNOWN IDENTIFIER 26915
WELL-KNOWN TEXT PROJCS["NAD_1983_UTM_Zone_15N",GEOGCS["GCS_North_American_1983",DATUM[" D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIME M["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_
Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],P ARAMETER["Central_Meridian",- 93.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT[" Meter",1.0],AUTHORITY["EPSG",26915]]
REFERENCE SYSTEM IDENTIFIER
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GEORECTIFIED GRID ►
AXIS DIMENSIONS PROPERTIES
DIMENSION TYPE column (x-axis)
AXIS DIMENSIONS PROPERTIES
DIMENSION TYPE row (y-axis)
CORNER POINTS
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INDIRECT SPATIAL REFERENCING
Adams CO, Mississippi
GEORECTIFIED GRID ►
AXIS DIMENSIONS PROPERTIES
DIMENSION TYPE column (x-axis)
AXIS DIMENSIONS PROPERTIES
DIMENSION TYPE row (y-axis)
CORNER POINTS
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ARCGIS RASTER PROPERTIES ►
GENERAL INFORMATION
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IMAGE DESCRIPTION
BAND INFORMATION
BAND INFORMATION
BAND INFORMATION
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SCOPE OF QUALITY INFORMATION ►
RESOURCE LEVEL dataset
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DATA QUALITY REPORT - CONCEPTUAL CONSISTENCY ►
MEASURE DESCRIPTION
NAIP 3.75 minute tile file names are based on the USGS quadrangle naming convention.
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DATA QUALITY REPORT - COMPLETENESS OMISSION ►
MEASURE DESCRIPTION
None
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DATA QUALITY REPORT - ABSOLUTE EXTERNAL POSITIONAL ACCURACY ►
DIMENSION horizontal
MEASURE DESCRIPTION
NAIP Specifications
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DATA QUALITY REPORT - ABSOLUTE EXTERNAL POSITIONAL ACCURACY ►
DIMENSION vertical
MEASURE DESCRIPTION
N/A 2d only
Hide Data quality report - Absolute external positional accuracy ▲
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PROCESS STEP ►
WHEN THE PROCESS OCCURRED 2016-10-20
DESCRIPTION
Flight planning was performed in Leica MissionPro over a buffered boundary covering DOQQ extents provided by the USDA. A 500m reduced resolution DEM file was used to determine ground heights. A targeted flight altitude of approximately 21,000 feet above ground level for native 60cm image acquisition with sidelap of 27% was used for flight planning parameters. Five Cessna Conquests and a Cessna 414 were utilized for acquisition, the seamline shapefile clarifies which aircraft were used for a given area.
All aircraft were equipped with Leica ADS100 systems where utilized for data capture. The Leica ADS100 pushbroom sensor has been calibrated by the manufacturer as well as validated against a local calibration range. The calibration includes measuring the radiometric and geometric properties of the camera. These data are used in the Post Processing Software to eliminate the radiometric and geometric distortion. All aerial imagery was collected with associated GPS/IMU data. ADS collection requires high quality IMU data for processing and was critical for early access hosting of digital data to the web for USDA interim access and review. After early access web delivery was complete, all imagery was triangulated using Leica XPro in which the airborne GPS data was constrained to expected limits. To validate the accuracy of the block adjustment derived from GPS/IMU, sensor parameters and conjugate point measurements, photo identifiable ground control points were field surveyed within each State. These points were surveyed using GPS techniques to produce coordinates that are accurate to +/-
0.25 meters RMSE in XYZ. The GPS surveying techniques utilized assured that the coordinates are derived in the required project datum and relative to an approved
National Reference System. If the block does not fit the control points within specifications the pass and tie points were reviewed for blunders and weak areas. If, after these corrections were made, the block still does not fit the control well the GPS and IMU processing were reviewed. Once the block has proper statistics and fits the control to specifications, the final bundle adjustment was made. As AT points are frequently on man-made and other vertical features not included in the DEM, these ortho points can only be used to indicate regions of error by the clusters of points that predict excessive horizontal displacement. The final adjustments assure a high quality relative adjustment and a high quality absolute adjustment limited to the airborne GPS data accuracy. This process assures the final absolute accuracy of all geopositioned imagery. Both signalized and photo identified ground control were used to QC and control the IMU/GPS based aerial triangulation bundle block solution. Surdex Grouping Tool provides real-time updates of the USDA APFO Image Metrics. The image technician adjusts image correction parameters to bring the radiometric characteristics of large groups of images within the Image Metrics ranges. For each project area the highest resolution DEM or LiDAR was obtained and utilized for rectification of captured imagery. A visual inspection of the final DEM using color cycled classification by elevation and a shaded relief was performed to check for gaps, corruption and gross errors. The predicted horizontal error for each point was added as an attribute in the SURDEX enterprise database. An operator reviews ortho seams in areas these predicted errors indicate horizontal error in excess of the contract specifications. Any imagery errors introduced by source DEM required patching from an alternate perspective or strip of photography. Processing hardware used included various brands of survey grade GPS receivers, various brands and models of computers, RAID6 storage, calibrated monitors, various brands of monitor calibration colorimeters. Leica XPro was used for post processing of ADS pushbroom data, triangulation and orthorectification. SURDEX software was used to color correct and remove bidirectional reflectance, vignetting and other illumination trends. USDA APFO Image Metrics are measured and images corrected to conform to the Image Metrics using SURDEX software. GPS/IMU data was reduced to projected coordinates in the appropriate UTM zone using Inertial Explorer software from Novatel. Aerial Triangulation and orthorectification was performed using Leica XPro. SURDEX software was used to adjust for minor radiometric variation between adjacent images. SURDEX software was used to calculate the optimal seam path, check seam topology and create master tiles. SURDEX ortho software generates occlusion/smear polygons used during seam review of steep terrain. SURDEX software was used to visually inspect master tiles for seam and image defects. SURDEX software was used to project and cut final DOQQ image files from masters. SURDEX software was used to create CCM metadata. Lizardtech GeoExpress version 8.0.0.3065 was used to create the CCM image file. SURDEX software was used to perform final formatting, QC and naming of the DOQQ. USGS metadata parser software was used to validate the metadata. Various versions of Microsoft Windows were used in all phases of production. Grouping Tool was used again after DOQQ and CCM production to provide a quality assurance check. Individual DOQQ and CCM may not meet the USDA APFO Image Metrics ranges due to land cover. The goal is to have the state as a whole meet the Image Metrics. All products are reviewed by independent personnel prior to delivery. The delivery is checked for omissions, commissions, naming, formatting, specification compliance and data integrity.
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SOURCE DATA ►
DESCRIPTION
Mosaicked County Image
RESOLUTION OF THE SOURCE DATA
SCALE DENOMINATOR 12000
SOURCE CITATION ►
TITLE Adams CO., MS FSA
ALTERNATE TITLES MrSID Compressed Image
PUBLICATION DATE 2016-10-20
RESPONSIBLE PARTY
ORGANIZATION'S NAME USDA-FSA Aerial Photography Field Office
CONTACT'S ROLE originator
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EXTENT OF THE SOURCE DATA
DESCRIPTION
Majority Aerial Photography Date
TEMPORAL EXTENT
DATE AND TIME 2016-10-20
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DISTRIBUTOR ►
CONTACT INFORMATION
INDIVIDUAL'S NAME Supervisor Customer Services Section ORGANIZATION'S NAME USDA-FSA Aerial Photography Field Office CONTACT'S ROLE distributor
CONTACT INFORMATION ►
PHONE
VOICE 801-844-2922
FAX 801-956-3653
ADDRESS
TYPE both
DELIVERY POINT 2222 West 2300 South
CITY Salt Lake City ADMINISTRATIVE AREA Utah POSTAL CODE 84119-2020 COUNTRY US
E-MAIL ADDRESS apfo.sales@slc.usda.gov
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AVAILABLE FORMAT
NAME Compressed County Mosaic
FORMAT INFORMATION CONTENT Natural Color
ORDERING PROCESS
TERMS AND FEES Contact the Aerial Photography Field Office for more information
TRANSFER OPTIONS
ONLINE SOURCE
LOCATION None
TRANSFER OPTIONS
MEDIUM OF DISTRIBUTION
MEDIUM NAME DVD
HOW DATA IS WRITTEN iso9660 (CD-ROM)
TRANSFER OPTIONS MEDIUM OF DISTRIBUTION TRANSFER OPTIONS
MEDIUM OF DISTRIBUTION
TRANSFER OPTIONS
MEDIUM OF DISTRIBUTION
MEDIUM NAME hard disk
TRANSFER OPTIONS
ONLINE SOURCE
DESCRIPTION None
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DISTRIBUTION FORMAT
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DETAILS FOR OBJECT Adams16.sid.vat ►
FIELD OID ►
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OVERVIEW DESCRIPTION ►
ENTITY AND ATTRIBUTE OVERVIEW
24-bit pixels, 3 band color(RGB) values 0 - 255
ENTITY AND ATTRIBUTE DETAIL CITATION
None
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METADATA LANGUAGE English (UNITED STATES)
METADATA CHARACTER SET utf8 - 8 bit UCS Transfer Format
SCOPE OF THE DATA DESCRIBED BY THE METADATA dataset
SCOPE NAME * dataset
ARCGIS METADATA PROPERTIES
METADATA FORMAT ArcGIS 1.0
LAST MODIFIED IN ARCGIS FOR THE ITEM 2017-01-24 07:39:41
AUTOMATIC UPDATES
LAST UPDATE 2017-01-24 07:39:41
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METADATA CONTACT
ORGANIZATION'S NAME USDA-FSA Aerial Photography Field Office
CONTACT'S ROLE point of contact
CONTACT INFORMATION ►
PHONE
VOICE 801-844-2900
ADDRESS
TYPE both
DELIVERY POINT 2222 West 2300 South
CITY Salt Lake City ADMINISTRATIVE AREA Utah POSTAL CODE 84119-2020 COUNTRY US
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ENCLOSURE
ENCLOSURE TYPE File
DESCRIPTION OF ENCLOSURE original metadata
ORIGINAL METADATA DOCUMENT, WHICH WAS TRANSLATED yes
SOURCE METADATA FORMAT fgdc
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FGDC Metadata (read-only) ▼
CITATION
CITATION INFORMATION ORIGINATOR USDA-FSA-APFO PUBLICATION DATE 2016-10-20 TITLE
USDA-FSA-APFO Digital Ortho Mosaic
PUBLICATION INFORMATION
PUBLICATION PLACE Salt Lake City, Utah
PUBLISHER USDA_FSA_APFO Aerial Photography Field Office
DESCRIPTION ABSTRACT
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP acquires digital ortho imagery during the agricultural growing seasons in the continental U.S.. A primary goal of the NAIP program is to enable availability of ortho imagery within one year of
acquisition. The NAIP provides two main products: 1 meter ground sample distance (GSD) ortho imagery rectified to a horizontal accuracy within +/- 5 meters of reference digital ortho quarter quads (DOQQ's) from the National Digital Ortho Program (NDOP) or from the National Agriculture Imagery Program (NAIP); 1 meter or 1/2 meter GSD ortho imagery rectified within +/- 4
meters to true ground. The tiling format of NAIP imagery is based on a 3.75' x 3.75' quarter quadrangle with a 300 pixel buffer on all four sides. The NAIP imagery is formatted to the UTM coordinate system using the North American Datum of 1983 (NAD83). The NAIP imagery may contain as much as 10% cloud cover per tile. This file
was generated by compressing NAIP imagery that covers the county extent. Two types of compression may be used for NAIP imagery: MrSID and JPEG 2000. The target value for the compression ratio is 15:1 for the 1 meter imagery and 60:1 for the 60cm imagery.
PURPOSE
The NAIP imagery is typically available for distribution within 60 days of the end of a flying season and is intended to provide current information of agricultural conditions
in support of USDA farm programs. For USDA Farm Service Agency, the 1 meter and 1/2 meter GSD product provides an ortho image base for Common Land Unit boundaries and other data sets. The NAIP imagery is generally acquired in
projects covering full states in cooperation with state government and other federal agencies who use the imagery for a variety of purposes including land use planning and natural resource assessment. The NAIP is also used for disaster response often providing the most current pre-event imagery.
TIME PERIOD OF CONTENT TIME PERIOD INFORMATION SINGLE DATE/TIME
CALENDAR DATE 2016-10-20
CURRENTNESS REFERENCE
Photography Source Image Dates.
STATUS
PROGRESS Complete
MAINTENANCE AND UPDATE FREQUENCY Irregular
SPATIAL DOMAIN BOUNDING COORDINATES
WEST BOUNDING COORDINATE -91.692411
EAST BOUNDING COORDINATE -91.111801
NORTH BOUNDING COORDINATE 31.819584
SOUTH BOUNDING COORDINATE 31.177820
KEYWORDS
THEME
THEME KEYWORD THESAURUS None
THEME KEYWORD farming
THEME KEYWORD Digital Ortho Rectified Image
THEME KEYWORD Mosaic
THEME KEYWORD Quarter Quadrangle THEME KEYWORD Ortho Rectification THEME KEYWORD Compression
THEME KEYWORD MrSID THEME KEYWORD JPEG 2000 THEME KEYWORD NAIP
THEME KEYWORD Compliance
THEME KEYWORD Aerial Compliance
PLACE
PLACE KEYWORD THESAURUS Geographic Names Information System
PLACE KEYWORD Adams CO., MS FSA
PLACE KEYWORD FIPS 28001
PLACE KEYWORD Adams
PLACE KEYWORD Mississippi
ACCESS CONSTRAINTS
There are no limitations for access.
USE CONSTRAINTS
None, The USDA-FSA Aerial Photography Field Office asks to be credited in derived products.
If defects are found in the NAIP imagery during the 1 year warranty period such as horizontal offsets, replacement imagery may be provided. Imagery containing defects that require the acquisition of new imagery, such as excessive cloud cover, specular reflectance, etc., will not be replaced within a
NAIP project year.
POINT OF CONTACT CONTACT INFORMATION
CONTACT ORGANIZATION PRIMARY
CONTACT ORGANIZATION USDA-FSA Aerial Photography Field Office
CONTACT ADDRESS
ADDRESS TYPE mailing and physical address
ADDRESS 2222 West 2300 South
CITY Salt Lake City
STATE OR PROVINCE Utah POSTAL CODE 84119-2020 COUNTRY UNITED STATES
CONTACT VOICE TELEPHONE 801-844-2922
CONTACT FACSIMILE TELEPHONE 801-956-3653
CONTACT ELECTRONIC MAIL ADDRESS apfo.sales@slc.usda.gov
BROWSE GRAPHIC BROWSE GRAPHIC FILE NAME None BROWSE GRAPHIC FILE DESCRIPTION
None
BROWSE GRAPHIC FILE TYPE None
NATIVE DATA SET ENVIRONMENT
NAIP 3.75 Quarter Quadrangles mosaicked into a County format using data compression software. The target values for the compression ratio are 15:1 for the 1 meter imagery and 60:1 for the 60 centimeter imagery.
Hide Identification ▲
LOGICAL CONSISTENCY REPORT
NAIP 3.75 minute tile file names are based on the USGS quadrangle naming convention.
COMPLETENESS REPORT
None
POSITIONAL ACCURACY
HORIZONTAL POSITIONAL ACCURACY HORIZONTAL POSITIONAL ACCURACY REPORT
NAIP Specifications
VERTICAL POSITIONAL ACCURACY VERTICAL POSITIONAL ACCURACY REPORT
N/A 2d only
LINEAGE
SOURCE INFORMATION SOURCE CITATION CITATION INFORMATION
ORIGINATOR USDA-FSA Aerial Photography Field Office
PUBLICATION DATE 2016-10-20
TITLE
Adams CO., MS FSA
SOURCE SCALE DENOMINATOR 12000
TYPE OF SOURCE MEDIA External Media Types
SOURCE TIME PERIOD OF CONTENT TIME PERIOD INFORMATION
SINGLE DATE/TIME
CALENDAR DATE 2016-10-20
SOURCE CURRENTNESS REFERENCE
Majority Aerial Photography Date
SOURCE CITATION ABBREVIATION
MrSID Compressed Image
SOURCE CONTRIBUTION
Mosaicked County Image
PROCESS STEP PROCESS DESCRIPTION
Flight planning was performed in Leica MissionPro over a
buffered boundary covering DOQQ extents provided by the USDA. A 500m reduced resolution DEM file was used to determine ground heights. A targeted flight altitude of approximately 21,000 feet above ground level for native 60cm image
acquisition with sidelap of 27% was used
for flight planning parameters. Five Cessna Conquests and a Cessna 414 were utilized for acquisition, the seamline shapefile clarifies which aircraft were used for a given area. All aircraft were equipped with Leica
ADS100 systems where utilized for data capture. The Leica ADS100 pushbroom sensor
has been calibrated by the manufacturer as well as validated
against a local calibration range. The calibration includes measuring the radiometric and geometric properties of the camera. These data are used in the Post Processing Software to eliminate the radiometric and geometric distortion.
All aerial imagery was collected with associated GPS/IMU data. ADS collection requires high quality IMU data for processing and was critical for early access hosting of digital data to the web for USDA interim access and review.
After early access web delivery was complete, all imagery was triangulated using Leica XPro in which
the airborne GPS data was constrained to expected limits.
To validate the accuracy of the block adjustment derived from GPS/IMU, sensor parameters and conjugate point measurements, photo identifiable ground control points
were field surveyed within each State. These points were surveyed using GPS techniques to produce coordinates that are accurate to +/- 0.25 meters RMSE in XYZ. The GPS surveying techniques utilized assured that the coordinates are derived
in the required project datum and relative to an approved National Reference System. If the block does not fit the control points within specifications the pass and tie
points were reviewed for blunders and weak areas. If, after these corrections were made, the block still
does not fit the control well the GPS and IMU processing were reviewed. Once the block has proper statistics and fits the control to specifications, the final bundle adjustment was made. As AT points are frequently on man-made and other vertical features not included in the DEM, these ortho
points can only be used to indicate regions of error by the clusters of points that predict excessive horizontal displacement.
The final adjustments assure a high quality relative adjustment and a high quality absolute adjustment limited to the
airborne GPS data accuracy. This process assures the final absolute accuracy of all geopositioned imagery. Both signalized and photo identified
ground control were used to QC and control the IMU/GPS based aerial triangulation bundle block solution. Surdex Grouping Tool provides real-time updates
of the USDA APFO Image Metrics. The image technician adjusts image correction parameters to bring the radiometric characteristics of large groups of images within the Image Metrics ranges. For each
project area the highest resolution DEM or LiDAR was obtained and utilized for rectification of captured imagery.
A visual inspection of the final DEM using color cycled classification by elevation and a shaded relief was performed to check for gaps, corruption and gross errors.
The predicted horizontal error for each
point was added as an attribute in the SURDEX enterprise database. An operator reviews ortho seams
in areas these predicted errors indicate horizontal error in excess of the contract specifications. Any imagery errors introduced by source DEM required patching from an alternate perspective or strip of photography.
Processing hardware used included various brands of survey grade
GPS receivers, various brands and models of computers, RAID6 storage, calibrated monitors, various brands of monitor calibration colorimeters. Leica XPro was used for post processing of ADS pushbroom data, triangulation and orthorectification. SURDEX software was used to color correct and remove bidirectional reflectance, vignetting and other
illumination trends. USDA APFO Image Metrics are measured and images corrected to conform to the Image Metrics using
SURDEX software. GPS/IMU data was reduced to projected coordinates in the appropriate UTM zone using
Inertial Explorer software from Novatel. Aerial Triangulation and orthorectification was performed using Leica XPro. SURDEX software was used to adjust for minor radiometric
variation between adjacent images. SURDEX software was used to calculate the optimal seam path, check seam topology and create master tiles. SURDEX ortho software generates occlusion/smear polygons used during seam review
of steep terrain. SURDEX software was used to
visually inspect master tiles for seam and image defects. SURDEX software was used to project and cut final DOQQ image files from masters. SURDEX software was used to create CCM metadata. Lizardtech GeoExpress version 8.0.0.3065 was used to create the CCM image file. SURDEX software was
used to perform final formatting, QC and naming of the DOQQ. USGS metadata parser software was used to validate the metadata. Various versions of Microsoft Windows were used in all phases of production. Grouping Tool was used again after DOQQ and CCM production to provide a quality assurance check. Individual
DOQQ and CCM may not meet the USDA APFO Image Metrics ranges due to land cover. The goal is to have the state as a
whole meet the Image Metrics. All products are reviewed by independent personnel prior to delivery.
The delivery is checked for omissions, commissions,
naming, formatting, specification compliance and data integrity.
PROCESS DATE 2016-10-20
Hide Data Quality ▲
INDIRECT SPATIAL REFERENCE METHOD
Adams CO, Mississippi
DIRECT SPATIAL REFERENCE METHOD Raster
RASTER OBJECT INFORMATION RASTER OBJECT TYPE Pixel
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HORIZONTAL COORDINATE SYSTEM DEFINITION PLANAR
PLANAR COORDINATE INFORMATION
PLANAR COORDINATE ENCODING METHOD row and column
COORDINATE REPRESENTATION ABSCISSA RESOLUTION 0.6
ORDINATE RESOLUTION 0.6
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 298.257
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OVERVIEW DESCRIPTION ENTITY AND ATTRIBUTE OVERVIEW
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ENTITY AND ATTRIBUTE DETAIL CITATION
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DISTRIBUTOR
CONTACT INFORMATION CONTACT PERSON PRIMARY
CONTACT PERSON Supervisor Customer Services Section
CONTACT ORGANIZATION USDA-FSA Aerial Photography Field Office
CONTACT ADDRESS
ADDRESS TYPE mailing and physical address
ADDRESS 2222 West 2300 South
CITY Salt Lake City
STATE OR PROVINCE Utah POSTAL CODE 84119-2020 COUNTRY UNITED STATES
CONTACT VOICE TELEPHONE 801-844-2922
CONTACT FACSIMILE TELEPHONE 801-956-3653
CONTACT ELECTRONIC MAIL ADDRESS apfo.sales@slc.usda.gov
RESOURCE DESCRIPTION None
DISTRIBUTION LIABILITY
In no event shall the creators, custodians, or distributors of this information be liable for any damages arising out of its use (or the inability to use it).
STANDARD ORDER PROCESS DIGITAL FORM
DIGITAL TRANSFER INFORMATION
FORMAT NAME Compressed County Mosaic
FORMAT INFORMATION CONTENT
Natural Color
DIGITAL TRANSFER OPTION ONLINE OPTION
COMPUTER CONTACT INFORMATION NETWORK ADDRESS
OFFLINE OPTION OFFLINE MEDIA DVD-R
RECORDING FORMAT ISO 9660
OFFLINE OPTION
OFFLINE MEDIA USB Hard Disk
RECORDING FORMAT NTFS
OFFLINE OPTION
OFFLINE MEDIA FireWire Hard Disk
RECORDING FORMAT NTFS
OFFLINE OPTION
OFFLINE MEDIA Flash drive
RECORDING FORMAT Fat32 or NTFS
FEES Contact the Aerial Photography Field Office for more information
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METADATA DATE 2016-10-20
METADATA CONTACT CONTACT INFORMATION
CONTACT ORGANIZATION PRIMARY
CONTACT ORGANIZATION USDA-FSA Aerial Photography Field Office
CONTACT ADDRESS
ADDRESS TYPE mailing and physical address
ADDRESS 2222 West 2300 South
CITY Salt Lake City
STATE OR PROVINCE Utah POSTAL CODE 84119-2020 COUNTRY UNITED STATES
CONTACT VOICE TELEPHONE 801-844-2900
METADATA STANDARD NAME Content Standard for Digital Geospatial Metadata
METADATA STANDARD VERSION FGDC-STD-001-1998
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