<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <idinfo>
    <citation>
      <citeinfo>
        <origin>USDA-FSA Aerial Photography Field Office</origin>
        <pubdate>20051223</pubdate>
        <title>Lyndon B. Johnson National Historical Park Vegetation Mapping Project - Orthorectified Photomosaic City</title>
        <geoform>remote-sensing image</geoform>
        <pubinfo>
          <pubplace>Salt Lake City, Utah</pubplace>
          <publish>USDA FSA Aerial Photography Field Office</publish>
        </pubinfo>
        <onlink>http://www1.usgs.gov/vip/lyjo/lyjoortho.zip</onlink>
        <onlink>doi:10.5066/F7C53HTV</onlink>
      </citeinfo>
    </citation>
    <descript>
      <abstract>This data set contains digital ortho-imagery developed to support planning and delivery of USDA programs. The USDA field service centers use digital ortho imagery as a basic reference for conservation plans and soil survey. The imagery has a 1 meter ground sample distance (GSD) ortho imagery rectified to National Mapping Standards at the 1:24,000 scale.  Imagery is based on a (7.5 x 15) or (7.5 x11.25) minute quarter quadrangle with a 300 meter buffer on all four sides. Quarter quads imagery is formatted to the UTM coordinate system using NAD83. Each quad may contain as much as 10% cloud cover per tile. This file was generated by compressing quarter quadrangle tiles that cover a project area.  MrSID compression, with mosaic option, was used. Target values for the compression ratio are (15:1) and compression levels (9) are used.</abstract>
      <purpose>Imagery is used to meet USDA program requirements including conservation planning and soil survey.  The interim product is a compressed mosaic.  Users should be aware that the interim compressed mosaic may contain defects and have horizontal accuracy less than the specified tolerances.</purpose>
    </descript>
    <timeperd>
      <timeinfo>
        <sngdate>
          <caldate>2005</caldate>
        </sngdate>
      </timeinfo>
      <current>Majority years of Photography Dates.</current>
    </timeperd>
    <status>
      <progress>Complete</progress>
      <update>Irregular</update>
    </status>
    <spdom>
      <descgeog>Lyndon B. Johnson National Historical Park</descgeog>
      <bounding>
        <westbc>-98.441239</westbc>
        <eastbc>-98.373118</eastbc>
        <northbc>30.296078</northbc>
        <southbc>30.257492</southbc>
      </bounding>
    </spdom>
    <keywords>
      <theme>
        <themekt>None</themekt>
        <themekey>Digital Georectified Image</themekey>
        <themekey>Mosaic</themekey>
        <themekey>Georectified imagery</themekey>
        <themekey>Quarter Quadrangle Centered</themekey>
        <themekey>Georectification</themekey>
        <themekey>Compression</themekey>
        <themekey>MrSID</themekey>
        <themekey>NAIP</themekey>
        <themekey>Compliance</themekey>
        <themekey>Aerial Compliance</themekey>
        <themekey>Farming</themekey>
      </theme>
      <place>
        <placekt>Geographic Names Information System</placekt>
        <placekey>TX</placekey>
        <placekey>Blanco</placekey>
        <placekey>Blanco CO TX FSA</placekey>
        <placekey>48031</placekey>
      </place>
    </keywords>
    <accconst>None</accconst>
    <useconst>None, The Originator asks to be credited in derived products.</useconst>
    <ptcontac>
      <cntinfo>
        <cntorgp>
          <cntorg>USDA-FSA Aerial Photography Field Office</cntorg>
        </cntorgp>
        <cntaddr>
          <addrtype>mailing and physical address</addrtype>
          <address>2222 West 2300 South</address>
          <city>Salt Lake City</city>
          <state>Utah</state>
          <postal>84119-2020</postal>
          <country>USA</country>
        </cntaddr>
        <cntvoice>800-973-3500</cntvoice>
        <cntfax>801-975-3529</cntfax>
      </cntinfo>
    </ptcontac>
    <native>Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722</native>
  </idinfo>
  <dataqual>
    <logic>None.</logic>
    <complete>None</complete>
    <posacc>
      <horizpa>
        <horizpar>FSA Digital Orthophoto Specs.</horizpar>
      </horizpa>
      <vertacc>
        <vertaccr>N/A  2d only</vertaccr>
      </vertacc>
    </posacc>
    <lineage>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>Aerial Photography Field Office</origin>
            <pubdate>20051223</pubdate>
            <title>Blanco, TX</title>
            <geoform>imagery</geoform>
          </citeinfo>
        </srccite>
        <srcscale>40000</srcscale>
        <typesrc>CD</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>2005</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>Majority Aerial Photography Date</srccurr>
        </srctime>
        <srccitea>MrSID compressed image</srccitea>
        <srccontr>Mosaicked County Image</srccontr>
      </srcinfo>
      <procstep>
        <procdesc>Imagery was flown with Leica ADS40 digital sensors to capture 0.9m raw data.  Raw data is then downloaded using Leica GPro software into 12 bit TIFF format.  The raw TIFF imagery is then georeferenced and reprojected using GPS/INS 200Hz exterior orientation information (x/y/z/o/p/k) to allow stereo viewable imagery.  This stereo viewable imagery is processed with the GPro/LPS automatic point matching algorithm to determine common match points every 2000 pixels across the imagery strip and 333 pixels along strip. This pattern includes dual rows of line ties to the adjacent line of imagery.  The resulting point data is imported in Leica ORIMA and used to perform a full bundle adjustment of the imagery point data.  Any blunders are removed, and weak areas are manually supplemented to ensure good coverage of points.  Once the point data is cleaned and point coverage is acceptable vertical control points from the prior generation MDOQQ's are introduced in the corners and center of the block being adjusted.  This control is used to perform any datum shift (x/y/z and rotation) to ensure the new adjusted imagery fits the existing MDOQQ reference imagery.  The output from this bundle adjustment process is revised exterior orientation data for the sensor with any GPS/INS, datum, and sensor calibration errors modeled and compensated for.  Using this revised EO data orthorectified image strips are created using the USGS DEM.  The 10m DEM is used where available and 30m DEM is used elsewhere.  The orthorectified strips are overlaid over the existing MDOQQ compressed files to ensure accuracy is met by a visual inspection and manually measuring features.  Once the accuracy of the orthorectified image strips are validated the strips are processed with a NWG proprietary dodging package that compensates for the bi-directional reflectance function that is caused by the sun's position relative to the image area.  This compensated imagery is then imported into Inpho's OrthoVista 4.0 package which is used for the final radiometric balance, mosaic, and DOQQ sheet creation. These final DOQQ sheets contain a 300m minimum buffer.  These final DOQQ tiles are edge inspected to the existing MDOQQ sheets for accuracy validation.  The final DOQQ tiles are then organized into directories based on the USDA provided county lists.  A visual inspection is performed of the entire county to ensure all tiles are present and the radiometric quality of the county looks good. If the radiometric quality is acceptable the county is compressed to MG3 format using Lizard Tech's GeoExpress v5.0 with a compression factor of 15 and 9 overview levels.  Once this compression is complete manual reviewing is performed to ensure satisfactory results.  The associated CCM shapefile is created using ESRI ArcView 9.0 with the latest service packs.</procdesc>
        <procdate>20051223</procdate>
      </procstep>
      <procstep>
        <procdesc>Metadata imported.</procdesc>
        <srcused>C:\Projects\nps\LYJO\NAIP\2005\imagery\compliance_fsa\naip_1-1_2n_s_tx031_2005_1.sid.xml</srcused>
        <procdate>Unknown</procdate>
      </procstep>
    </lineage>
  </dataqual>
  <spdoinfo>
    <indspref>Blanco, TX</indspref>
    <direct>Raster</direct>
    <rastinfo>
      <rasttype>Pixel</rasttype>
      <rowcount>2121</rowcount>
      <colcount>3265</colcount>
    </rastinfo>
  </spdoinfo>
  <spref>
    <horizsys>
      <planar>
        <gridsys>
          <gridsysn>Universal Transverse Mercator</gridsysn>
          <utm>
            <utmzone>14</utmzone>
            <transmer>
              <sfctrmer>0.999600</sfctrmer>
              <longcm>-99.000000</longcm>
              <latprjo>0.000000</latprjo>
              <feast>500000.000000</feast>
              <fnorth>0.000000</fnorth>
            </transmer>
          </utm>
        </gridsys>
        <planci>
          <plance>row and column</plance>
          <coordrep>
            <absres>2.000000</absres>
            <ordres>2.000000</ordres>
          </coordrep>
          <plandu>meters</plandu>
        </planci>
      </planar>
      <geodetic>
        <horizdn>North American Datum of 1983</horizdn>
        <ellips>Geodetic Reference System 80</ellips>
        <semiaxis>6378137.000000</semiaxis>
        <denflat>298.257222</denflat>
      </geodetic>
    </horizsys>
  </spref>
  <eainfo>
    <detailed>
      <enttyp>
        <enttypl>Band_1</enttypl>
        <enttypd>Raster</enttypd>
        <enttypds>ESRI</enttypds>
      </enttyp>
      <attr>
        <attrlabl>ObjectID</attrlabl>
        <attrdef>Internal feature number.</attrdef>
        <attrdefs>ESRI</attrdefs>
        <attrdomv>
          <udom>Sequential unique whole numbers that are automatically generated.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Value</attrlabl>
        <attrdef>Internal feature number.</attrdef>
        <attrdefs>ESRI</attrdefs>
        <attrdomv>
          <udom>Numerical.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Count</attrlabl>
        <attrdef>Internal feature number.</attrdef>
        <attrdefs>ESRI</attrdefs>
        <attrdomv>
          <udom>Numerical.</udom>
        </attrdomv>
      </attr>
    </detailed>
    <detailed>
      <enttyp>
        <enttypl>Band_2</enttypl>
        <enttypd>Raster</enttypd>
        <enttypds>ESRI</enttypds>
      </enttyp>
      <attr>
        <attrlabl>ObjectID</attrlabl>
        <attrdef>Internal feature number.</attrdef>
        <attrdefs>ESRI</attrdefs>
        <attrdomv>
          <udom>Sequential unique whole numbers that are automatically generated.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Value</attrlabl>
        <attrdef>Internal feature number.</attrdef>
        <attrdefs>ESRI</attrdefs>
        <attrdomv>
          <udom>Numerical.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Count</attrlabl>
        <attrdef>Internal feature number.</attrdef>
        <attrdefs>ESRI</attrdefs>
        <attrdomv>
          <udom>Numerical.</udom>
        </attrdomv>
      </attr>
    </detailed>
    <detailed>
      <enttyp>
        <enttypl>Band_3</enttypl>
        <enttypd>Raster</enttypd>
        <enttypds>ESRI</enttypds>
      </enttyp>
      <attr>
        <attrlabl>ObjectID</attrlabl>
        <attrdef>Internal feature number.</attrdef>
        <attrdefs>ESRI</attrdefs>
        <attrdomv>
          <udom>Sequential unique whole numbers that are automatically generated.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Value</attrlabl>
        <attrdef>Internal feature number.</attrdef>
        <attrdefs>ESRI</attrdefs>
        <attrdomv>
          <udom>Numerical.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Count</attrlabl>
        <attrdef>Internal feature number.</attrdef>
        <attrdefs>ESRI</attrdefs>
        <attrdomv>
          <udom>Numerical.</udom>
        </attrdomv>
      </attr>
    </detailed>
    <overview>
      <eaover>24-bit pixels, 3 band color (RGB) represent brightness values 0 - 255</eaover>
      <eadetcit>None</eadetcit>
    </overview>
  </eainfo>
  <distinfo>
    <distrib>
      <cntinfo>
        <cntorgp>
          <cntorg>USGS/CSS/Core Science Analytics and Synthesis</cntorg>
          <cntper>USGS-NPS Vegetation Characterization Program Coordinator</cntper>
        </cntorgp>
        <cntaddr>
          <addrtype>mailing and physical address</addrtype>
          <address>Denver Federal Center, Building 810, MS 302</address>
          <city>Denver</city>
          <state>Colorado</state>
          <postal>80225</postal>
        </cntaddr>
        <cntvoice>(303) 202-4220</cntvoice>
        <cntfax>303-202-4219</cntfax>
        <cntemail>gs-b-npsveg@usgs.gov</cntemail>
      </cntinfo>
    </distrib>
    <resdesc>Downloadable Data</resdesc>
    <distliab>The U.S. Geological Survey and the National Park Service shall not be held liable for improper or incorrect use of the data described and/or contained herein.  These data and related graphics (if available) are not legal documents and are not intended to be used as such.

The information contained in these data is dynamic and may change over time.  The data are not better than the original sources from which they were derived.  It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular.  Any related graphics (if available) are intended to aid the data user in acquiring relevant data; it is not approriate to use the related graphics as data.

The U.S. Geological Survey and the National Park Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data.  It is strongly recommended that these data are directly acquired from an U.S. Geological Survey and National Park Service servers and not indirectly through other sources which may have changed the data in some way.  Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. Mention of trade names or commercial products in this metadata report does not constitute endorsement or recommendation for use by the U. S. Department of the Interior, U. S. Geological Survey and National Park Service.</distliab>
    <stdorder>
      <digform>
        <digtinfo>
          <formname>HTML</formname>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>http://www.usgs.gov/core_science_systems/csas/vip/parks/lyjo.html</networkr>
              </networka>
            </computer>
            <accinstr>Internet Access</accinstr>
          </onlinopt>
        </digtopt>
      </digform>
      <fees>None</fees>
    </stdorder>
    <stdorder>
      <digform>
        <digtinfo>
          <formname>Compressed County Mosaic</formname>
          <formcont>Natural Color</formcont>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>None</networkr>
              </networka>
            </computer>
          </onlinopt>
          <offoptn>
            <offmedia>CD</offmedia>
            <recfmt>ISO 9660</recfmt>
          </offoptn>
        </digtopt>
      </digform>
      <fees>Contact the Aerial Photography Field Office for more information</fees>
    </stdorder>
  </distinfo>
  <metainfo>
    <metd>20070125</metd>
    <metrd>20100602</metrd>
    <metc>
      <cntinfo>
        <cntorgp>
          <cntorg>USGS/CSS/Core Science Analytics and Synthesis</cntorg>
          <cntper>USGS-NPS Vegetation Characterization Program Coordinator</cntper>
        </cntorgp>
        <cntaddr>
          <addrtype>mailing and physical address</addrtype>
          <address>Denver Federal Center, Building 810, MS 302</address>
          <city>Denver</city>
          <state>Colorado</state>
          <postal>80225</postal>
        </cntaddr>
        <cntvoice>(303) 202-4220</cntvoice>
        <cntfax>303-202-4219</cntfax>
        <cntemail>gs-b-npsveg@usgs.gov</cntemail>
      </cntinfo>
    </metc>
    <metstdn>FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata</metstdn>
    <metstdv>FGDC-STD-001.1-1999</metstdv>
    <metextns>
      <onlink>http://www.usgs.gov/core_science_systems/csas/metadata/index.html</onlink>
    </metextns>
  </metainfo>
</metadata>

