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images/samples/orig/m_4209426_ne_15_1_20170707.txt

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+Metadata:
+ Identification_Information:
+ Citation:
+ Citation_Information:
+ Originator: USDA-FSA-APFO Aerial Photography Field Office
+ Publication_Date: 20171120
+ Title: NAIP Digital Ortho Photo Image
+ Geospatial_Data_Presentation_Form: remote-sensing image
+ 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 program is administered by
+ USDA FSA and has been established to support two main FSA
+ strategic goals centered on agricultural production.
+ These are, increase stewardship of America's natural resources
+ while enhancing the environment, and to ensure commodities
+ are procured and distributed effectively and efficiently to
+ increase food security. The NAIP program supports these goals by
+ acquiring and providing ortho imagery that has been collected
+ during the agricultural growing season in the U.S. The NAIP
+ ortho imagery is tailored to meet FSA requirements and is a
+ fundamental tool used to support FSA farm and conservation
+ programs. Ortho imagery provides an effective, intuitive
+ means of communication about farm program administration
+ between FSA and stakeholders. 
+ New technology and innovation is identified by fostering and
+ maintaining a relationship with vendors and government
+ partners, and by keeping pace with the broader geospatial
+ community. As a result of these efforts the NAIP program
+ provides three main products: DOQQ tiles,
+ Compressed County Mosaics (CCM), and Seamline shape files
+ The Contract specifications for NAIP imagery have changed
+ over time reflecting agency requirements and improving
+ technologies. These changes include image resolution,
+ horizontal accuracy, coverage area, and number of bands.
+ In general, flying seasons are established by FSA and are
+ targeted for peak crop growing conditions. The NAIP
+ acquisition cycle is based on a minimum 3 year refresh of base
+ ortho imagery. The tiling format of the NAIP imagery is based
+ on a 3.75' x 3.75' quarter quadrangle with a 300 pixel buffer
+ on all four sides. NAIP quarter quads are formatted to the UTM
+ coordinate system using the North American Datum of 1983.
+ NAIP imagery may contain as much as 10% cloud cover per tile.
+ Purpose:
+ NAIP imagery is 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 1 meter and 1/2 meter NAIP
+ imagery is generally acquired in projects covering full states in
+ cooperation with state government and other federal agencies that
+ use the imagery for a variety of purposes including land use
+ planning and natural resource assessment. The NAIP is also used 
+ for disaster response. While suitable for a variety of uses,
+ prior to 2007 the 2 meter GSD NAIP imagery was primarily intended
+ to assess "crop condition and compliance" to USDA farm program
+ conditions. The 2 meter imagery was generally acquired only
+ for agricultural areas within state projects.
+ Time_Period_of_Content:
+ Time_Period_Information:
+ Single_Date/Time:
+ Calendar_Date: 20170707
+ Currentness_Reference: Ground Condition
+ Status:
+ Progress: Complete
+ Maintenance_and_Update_Frequency: Irregular
+ Spatial_Domain:
+ Bounding_Coordinates:
+ West_Bounding_Coordinate: -94.8125
+ East_Bounding_Coordinate: -94.7500
+ North_Bounding_Coordinate: 42.6250
+ South_Bounding_Coordinate: 42.5625
+ Keywords:
+ Theme:
+ Theme_Keyword_Thesaurus: None
+ Theme_Keyword: farming
+ Theme_Keyword: Digital Ortho rectified Image
+ Theme_Keyword: Ortho Rectification
+ Theme_Keyword: Quarter Quadrangle
+ Theme_Keyword: NAIP
+ Theme_Keyword: Aerial Compliance
+ Theme_Keyword: Compliance
+ Place:
+ Place_Keyword_Thesaurus: Geographic Names Information System
+ Place_Keyword: IA
+ Place_Keyword: Pocahontas
+ Place_Keyword: 19151
+ Place_Keyword: IA151
+ Place_Keyword: POCAHONTAS CO IA FSA
+ Place_Keyword: 4209426
+ Place_Keyword: FONDA, NE
+ Place_Keyword: FONDA
+ 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.
+ Point_of_Contact:
+ Contact_Information:
+ Contact_Organization_Primary:
+ Contact_Organization: Aerial Photography Field Office (APFO)
+ 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: USA
+ Contact_Voice_Telephone: 801-844-2922
+ Contact_Facsimile_Telephone: 801-956-3653
+ Contact_Electronic_Mail_Address: [email protected]
+ Browse_Graphic:
+ Browse_Graphic_File_Name: None
+ Browse_Graphic_File_Description: None
+ Browse_Graphic_File_Type: None
+ Native_Data_Set_Environment: Unknown
+ Data_Quality_Information:
+ 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 horizontal accuracy specifications have evolved over
+ the life of the program. From 2003 to 2004 the
+ specifications were as follows: 1-meter GSD imagery was
+ to match within 3-meters, and 2-meter GSD to match within 10
+ meters of reference imagery. For 2005 the 1-meter GSD
+ specification was changed to 5 meters matching the reference
+ imagery. In 2006 a pilot project was performed using true
+ ground specifications rather than reference imagery. All
+ states used the same specifications as 2005 except Utah,
+ which required a match of +/- 6 meters to true ground.
+ In 2007 all specifications were the same as 2006 except
+ Arizona used true ground specifications and all other states
+ used reference imagery. In 2008 and subsequent years
+ no 2-meter GSD imagery was acquired and all specifications
+ were the same as 2007 except approximately half of the
+ states acquired used true ground specifications and the
+ other half used reference imagery. The 2008 states that
+ used absolute ground control where; Indiana, Minnesota,
+ New Hampshire, North Carolina, Texas, Vermont, and Virginia.
+ From 2009 to present all NAIP imagery acquisitions used
+ the +/- 6 meters to ground specification.
+ Lineage:
+ Source_Information:
+ Source_Citation:
+ Citation_Information:
+ Originator: USDA-FSA-APFO Aerial Photography Field Office
+ Publication_Date: 20171120
+ Title: FONDA, NE
+ Geospatial_Data_Presentation_Form: remote-sensing image
+ Type_of_Source_Media: UnKnown
+ Source_Time_Period_of_Content:
+ Time_Period_Information:
+ Single_Date/Time:
+ Calendar_Date: 20170707
+ Source_Currentness_Reference:
+ Aerial Photography Date for aerial photo source.
+ Source_Citation_Abbreviation: Georectifed Image
+ Source_Contribution: Digital Georectifed 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 16,000 feet above ground level for 
+ 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 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 post processing 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, calibrated monitors and 
+ 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 9.1.0.3981 
+ 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: 20171120
+ Spatial_Data_Organization_Information:
+ Indirect_Spatial_Reference: Pocahontas County, IA
+ Direct_Spatial_Reference_Method: Raster
+ Raster_Object_Information:
+ Raster_Object_Type: Pixel
+ Row_Count: 1
+ Column_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: 15
+ Transverse_Mercator:
+ Scale_Factor_at_Central_Meridian: 0.9996
+ Longitude_of_Central_Meridian: -93.0
+ Latitude_of_Projection_Origin: 0.0
+ False_Easting: 500000
+ False_Northing: 0.0
+ 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: North American Datum of 1983
+ Ellipsoid_Name: Geodetic Reference System 80 (GRS 80)
+ Semi-major_Axis: 6378137
+ Denominator_of_Flattening_Ratio: 298.257
+ Entity_and_Attribute_Information:
+ Overview_Description:
+ Entity_and_Attribute_Overview:
+ 32-bit pixels, 4 band color(RGBIR) values 0 - 255
+ Entity_and_Attribute_Detail_Citation: None
+ Distribution_Information:
+ Distributor:
+ Contact_Information:
+ Contact_Person_Primary:
+ Contact_Person: Supervisor Customer Services Section
+ Contact_Organization:
+ USDA-FSA-APFO 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: USA
+ Contact_Voice_Telephone: 801-844-2922
+ Contact_Facsimile_Telephone: 801-956-3653
+ Contact_Electronic_Mail_Address: [email protected]
+ 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: GeoTIFF - Georeferenced Tagged Image File Format
+ Format_Information_Content: Multispectral 4-band
+ Digital_Transfer_Option:
+ Offline_Option:
+ Offline_Media: CD-ROM
+ Recording_Format: ISO 9660 Mode 1 Level 2 Extensions
+ 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
+ Fees:
+ Contact the Aerial Photography Field Office
+ for more information
+ Resource_Description:
+ m_4209426_ne_15_1_20170707_20171026.tif
+ Metadata_Reference_Information:
+ Metadata_Date: 20171120
+ Metadata_Contact:
+ Contact_Information:
+ Contact_Organization_Primary:
+ Contact_Organization:
+ USDA-FSA-APFO 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: USA
+ Contact_Voice_Telephone: 801-844-2922
+ Metadata_Standard_Name:
+ Content Standard for Digital Geospatial Metadata
+ Metadata_Standard_Version: FGDC-STD-001-1998
+