Metadata:
  Identification_Information:
    Citation:
      Citation_Information:
        Originator: USDA-FSA-APFO Aerial Photography Field Office
        Publication_Date: 20180110
        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: 20171028
      Currentness_Reference: Ground Condition
    Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: Irregular
    Spatial_Domain:
      Bounding_Coordinates:
        West_Bounding_Coordinate:  -117.0625
        East_Bounding_Coordinate:  -117.0000
        North_Bounding_Coordinate:  48.5625
        South_Bounding_Coordinate:  48.5000
    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: ID
        Place_Keyword: Bonner
        Place_Keyword: 16017
        Place_Keyword: ID017
        Place_Keyword: BONNER CO ID FSA
        Place_Keyword: 4811732
        Place_Keyword: GLEASON MOUNTAIN, SE
        Place_Keyword: GLEASON MOUNTAIN
    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: 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: 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: 20180110
            Title: GLEASON MOUNTAIN, SE
            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: 20171028
          Source_Currentness_Reference:
            Aerial Photography Date for aerial photo source.
        Source_Citation_Abbreviation: Georectifed Image
        Source_Contribution: Digital Georectifed Image.

      Process_Step:
        Process_Description:
          DOQQ Production Process Description

          USDA FSA APFO NAIP Program 2017

          State: Idaho

          

                  Digital imagery was collected at a nominal GSD of 

                  40cm using nine Cessna 441, one Reims F406, one Piper and

                  one Merlin aircraft flying at an average flight height of

                  8400m AGL for the SH120 acquisition and 4400m AGL for

                  SH100 acquisition. Aircraft flew with Leica Geosystem's

                  ADS100/SH100 digital sensors with firmware 4.57 or 

                  ADS100/SH120 digital sensors with firmware 4.57. Each 

                  sensor collected 12 image bands Red,Green,Blue and 

                  Near-infrared at each of three look angles; Backward 19

                  degrees, Forward 26 degrees and Nadir for the SH100.  

                  Backward 10 degrees, Forward 14 degrees, and Nadir for 

                  the SH120. The Nadir Green band was collected in high

                  resolution mode effectively doubling the resolution for

                  that band.  The ADS100 spectral ranges are; Red 619-651nm,

                  Green 525-585nm, Blue 435-495nm and Near-infrared at 

                  808-882nm. The CCD arrays have a pixel size of 5.0 microns

                  in a 20000x1 format at nadir; a 18000x1 format at the

                  backward look angle and a 16000x1 format at the forward

                  look angle. The CCD's have a dynamic range of 72db and

                  the A/D converters have a resolution of 14bits.  The ADS

                  is a push-broom sensor the ground footprint of the imagery

                  is approximately 8km wide at a nominal 40cm GSD by the 

                  length flightline. The maximum flightline length is limited

                  to approximately 175km. The factory calibrations and IMU

                  alignments for each sensor (Serial Numbers: 10511,10512,

                  10514,10522,10527,10530,10531,10534,10540,10554,12502)

                  were tested and verified by in-situ test flights before 

                  the start of the project. The Leica MissionPro Flight

                  Planning Software is used to develop the flight acquisition

                  plans. Flight acquisition sub blocks are designed first to

                  define the GNSS base station logistics, and to break

                  the project up into manageable acquisition units. The

                  flight acquisition sub blocks are designed based on

                  the specified acquisition season, native UTM zone of

                  the DOQQs, flight line length limitations (to ensure

                  sufficient performance of the IMU solution) as well

                  as air traffic restrictions in the area. Once the sub

                  blocks have been delineated they are brought into

                  MissionPro for flight line design. The design

                  parameters used in MissionPro will be 30% lateral

                  overlap and 40cm resolution.  The flight lines

                  have been designed with a north/south orientation or

                  east/west where required for efficiency.

                  The design takes into account the latitude of the

                  state, which affects line spacing due to convergence

                  as well as the terrain. SRTM elevation data is

                  used in the MissionPro design to ensure the 50cm

                  GSD is achieved over all types of terrain.  The raw

                  data was downloaded from the sensors after each

                  flight using Leica XPro software. The imagery was

                  then georeferenced using the 200Hz GPS/INS data

                  creating an exterior orientation for each scan line

                  (x/y/z/o/p/k). Leica Xpro APM software was used to

                  automatically generate tiepoint measurements between

                  the forward, nadir and backward look angles for each line

                  and to tie all flight lines together. The resulting point

                  data and exterior orientation data were used to perform

                  a full bundle adjustment using ORIMA software. Blunders

                  were removed, and additional tie points measured in weak

                  areas to ensure a robust solution. Once the point data

                  was clean and point coverage was acceptable,

                  photo-identifiable GPS-surveyed ground control points

                  were introduced into the block adjustment. The bundle

                  adjustment process produces revised exterior orientation

                  data for the sensor with GPS/INS, datum, and sensor

                  calibration errors modeled and removed. Using the

                  revised exterior orientation from the bundle adjustment,

                  orthorectified image strips were created with Xpro

                  software and the June 2014 USGS 10m NED DEM. The Xpro

                  orthorectification software applies an atmospheric-BRDF

                  radiometric correction to the imagery. This correction

                  compensates for atmospheric absorption, solar

                  illumination angle and bi-directional reflectance. The

                  orthorectified strips were then overlaid with each other

                  and the ground control to check accuracy. Once the accuracy

                  of the orthorectified image strips were validated the

                  strips were then imported into Inpho's OrthoVista 7.0

                  package which was used for the final radiometric

                  balance, mosaic, and DOQQ sheet creation. The final

                  DOQQ sheets, with a 300m buffer and a ground pixel

                  resolution of 1m or 60cm were then combined and compressed

                  to create the county wide CCMs
        Process_Date: 20180110
  Spatial_Data_Organization_Information:
    Indirect_Spatial_Reference: Bonner County, ID
    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: 11
            Transverse_Mercator:
              Scale_Factor_at_Central_Meridian: 0.9996
              Longitude_of_Central_Meridian: -117.0
              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: apfo.sales@slc.usda.gov
    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_4811732_se_11_1_20171028_20180102.tif
  Metadata_Reference_Information:
    Metadata_Date: 20180110
    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

