<?xml version='1.0' encoding='UTF-8'?>
<metadata xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <idinfo>
    <citation>
      <citeinfo>
        <origin>James A. Falcone</origin>
        <pubdate>2017</pubdate>
        <title>Conterminous U.S. mapping of household income at the block group scale adjusted for cost-of-living for the period 2013-2014</title>
        <geoform>Raster Digital Data Set</geoform>
        <onlink>https://doi.org/10.5066/F7668BB6</onlink>
      </citeinfo>
    </citation>
    <descript>
      <abstract>Household income is a potential predictor for a number of environmental influences, for example, application of urban pesticides.  This product is a U.S. conterminous mapping of block group income derived from the 2010-2014 Census American Community Survey (ACS), adjusted by a 2013 county-level Cost-of-Living index obtained from the Council for Community and Economic Research. The resultant raster is provided at 200-m spatial resolution, in units of adjusted household income in thousands of dollars per year.</abstract>
      <purpose>The data are intended for GIS-based area calculations, for example calculating mean values for watersheds.</purpose>
      <supplinf>The Census American Community Survey (ACS) is a rolling 5-year data collection effort, which obtains detailed information from a sampling of households.  One-fifth of the country is sampled in any one year, thus data for the entire country is available based on a five year cycle, but is updated annually.</supplinf>
    </descript>
    <timeperd>
      <timeinfo>
        <rngdates>
          <begdate>20100101</begdate>
          <enddate>20141231</enddate>
        </rngdates>
      </timeinfo>
      <current>observed</current>
    </timeperd>
    <status>
      <progress>Complete</progress>
      <update>None planned</update>
    </status>
    <spdom>
      <bounding>
        <westbc>-127.977345175</westbc>
        <eastbc>-65.25298988</eastbc>
        <northbc>50.6283256</northbc>
        <southbc>22.768690319</southbc>
      </bounding>
    </spdom>
    <keywords>
      <theme>
        <themekt>None</themekt>
        <themekey>Household income</themekey>
        <themekey>Block groups</themekey>
        <themekey>Cost of living index</themekey>
      </theme>
      <theme>
        <themekt>USGS Metadata Identifier</themekt>
        <themekey>USGS:587014c8e4b01a71ba0c5fdd</themekey>
      </theme>
      <place>
        <placekt>None</placekt>
        <placekey>United States</placekey>
      </place>
    </keywords>
    <accconst>None. Please see 'Distribution Info' for details.</accconst>
    <useconst>Data are intended as a source of information for areal calculations, for example watershed means.</useconst>
    <ptcontac>
      <cntinfo>
        <cntorgp>
          <cntorg>US Geological Survey, NAWQA</cntorg>
          <cntper>James Falcone</cntper>
        </cntorgp>
        <cntaddr>
          <addrtype>Mailing</addrtype>
          <address>12201 Sunrise Valley Dr</address>
          <address>MS 413 National Center</address>
          <city>Reston</city>
          <state>VA</state>
          <postal>20192</postal>
          <country>USA</country>
        </cntaddr>
        <cntvoice>703-648-5008</cntvoice>
        <cntemail>jfalcone@usgs.gov</cntemail>
      </cntinfo>
    </ptcontac>
    <datacred>Many thanks to the Council for Community and Economic Research for providing the county cost-of-living values without charge.</datacred>
    <native>Environment as of Metadata Creation: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1 (Build 4959) Service Pack N/A (Build N/A)</native>
  </idinfo>
  <dataqual>
    <attracc>
      <attraccr>No formal attribute accuracy tests were conducted.</attraccr>
    </attracc>
    <logic>No formal logical accuracy tests were conducted.</logic>
    <complete>Data are complete</complete>
    <posacc>
      <horizpa>
        <horizpar>A formal accuracy assessment of the horizontal positional information in the data set has not been conducted.</horizpar>
      </horizpa>
      <vertacc>
        <vertaccr>A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable.</vertaccr>
      </vertacc>
    </posacc>
    <lineage>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>U.S. Bureau of Census</origin>
            <pubdate>2015</pubdate>
            <title>TIGER/Line with selected demographic and economic data, block-groups</title>
            <geoform>Vector and Tabular Digital Data Set</geoform>
            <pubinfo>
              <pubplace>U.S. Bureau of Census</pubplace>
              <publish>U.S. Bureau of Census</publish>
            </pubinfo>
            <onlink>https://www.census.gov/geo/maps-data/data/tiger-data.html</onlink>
          </citeinfo>
        </srccite>
        <typesrc>Digital and/or Hardcopy Resources</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>2014</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>observed</srccurr>
        </srctime>
        <srccitea>U.S. Bureau of Census</srccitea>
        <srccontr>National block group shapefile polygons with associated 2010-2014 income tables.</srccontr>
      </srcinfo>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>The Council for Community and Economic Research</origin>
            <pubdate>20130101</pubdate>
            <title>County-level cost-of-living index values</title>
            <geoform>Tabular Digital Data Set</geoform>
            <pubinfo>
              <pubplace>The Council for Community and Economic Research</pubplace>
              <publish>The Council for Community and Economic Research</publish>
            </pubinfo>
            <onlink>www.coli.org</onlink>
          </citeinfo>
        </srccite>
        <typesrc>Digital and/or Hardcopy Resources</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>20130606</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>observed</srccurr>
        </srctime>
        <srccitea>The Council for Community and Economic Research</srccitea>
        <srccontr>County-level cost-of-living index values for adjusting raw 2014 income.</srccontr>
      </srcinfo>
      <procstep>
        <procdesc>(1) U.S. Census National ACS 2010-2014 data, in shapefile format with associated tables, were downloaded on Jan 10, 2017 from https://www.census.gov/geo/maps-data/data/tiger-data.html.  Median household income value, item B19013e1, was extracted for the five year period for 2010-2014. This was converted to a national 200-meter (m) grid, named income_raw14. Values of 0, primarily national parks and areas of no habitation, were converted to NoData, so that resultant calculations would not be skewed downwards for those areas.
(2) County level 2013 Cost of Living Index (COLI) was obtained from The Council for Community and Economic Research (www.coli.org) in June 2013.  The data were generously provided free of charge.  These were joined to a 2010 shapefile of county boundaries obtained from the National Historical Geographic Information System (nhgis.org), then converted to a 200-m grid, and termed county_coli13.
(3) The 2014 raw income in (1) above was adjusted by the county Cost of Living Index as follows to create an adjusted grid: income_adj14 = income_raw14 / (county_coli13 / 100)
For example, Fairfax County, VA has a COLI of 124.9.  Thus a block group in Fairfax County with raw income of 101.25 ($101,250), would be divided by 1.249 to give an adjusted income of 81.06 ($81,060).  This makes incomes across the country more comparable.
(4) Units of resultant raster are household income in thousands of dollars per year.  Block groups with no income data (block groups with no permanent population) are coded as NoData in the final raster.</procdesc>
        <procdate>20170110</procdate>
      </procstep>
    </lineage>
  </dataqual>
  <spdoinfo>
    <direct>Raster</direct>
    <rastinfo>
      <rasttype>Grid Cell</rasttype>
      <rowcount>14592</rowcount>
      <colcount>23127</colcount>
      <vrtcount>1</vrtcount>
    </rastinfo>
  </spdoinfo>
  <spref>
    <horizsys>
      <planar>
        <mapproj>
          <mapprojn>NAD 1983 Albers (ESRI Full Name: NAD_1983_Albers)</mapprojn>
          <albers>
            <stdparll>29.5</stdparll>
            <stdparll>45.5</stdparll>
            <longcm>-96.0</longcm>
            <latprjo>23.0</latprjo>
            <feast>0.0</feast>
            <fnorth>0.0</fnorth>
          </albers>
        </mapproj>
        <planci>
          <plance>row and column</plance>
          <coordrep>
            <absres>200.0</absres>
            <ordres>200.0</ordres>
          </coordrep>
          <plandu>Meter</plandu>
        </planci>
      </planar>
      <geodetic>
        <horizdn>D_North_American_1983</horizdn>
        <ellips>GRS_1980</ellips>
        <semiaxis>6378137.0</semiaxis>
        <denflat>298.257222101</denflat>
      </geodetic>
    </horizsys>
  </spref>
  <eainfo>
    <detailed>
      <enttyp>
        <enttypl>Attribute Table</enttypl>
        <enttypd>Table containing attribute information associated with the data set.</enttypd>
        <enttypds>Producer defined</enttypds>
      </enttyp>
      <attr>
        <attrlabl>Value</attrlabl>
        <attrdef>Household income in thousands of dollars for 2014, adjusted for cost-of-living</attrdef>
        <attrdefs>Producer defined</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>1.825</rdommin>
            <rdommax>260.147</rdommax>
          </rdom>
        </attrdomv>
      </attr>
    </detailed>
    <overview>
      <eaover>The entity and attribute information provided here describes the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set.</eaover>
      <eadetcit>The entity and attribute information was generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information.</eadetcit>
    </overview>
  </eainfo>
  <distinfo>
    <distrib>
      <cntinfo>
        <cntorgp>
          <cntorg>US Geological Survey - ScienceBase</cntorg>
        </cntorgp>
        <cntaddr>
          <addrtype>Mailing</addrtype>
          <address>Denver Federal Center, Building 810, Mail Stop 302</address>
          <city>Denver</city>
          <state>CO</state>
          <postal>80225</postal>
          <country>USA</country>
        </cntaddr>
        <cntvoice>1-888-275-8747 (1-888-ASK-USGS)</cntvoice>
        <cntemail>sciencebase@usgs.gov</cntemail>
      </cntinfo>
    </distrib>
    <distliab>Although this data set has been used by the U.S. Geological
Survey, U.S. Department of the Interior, no warranty expressed or
implied is made by the U.S. Geological Survey as to the accuracy
of the data and related materials. The act of distribution shall not 
constitute any such warranty, and no responsibility is assumed by 
the U.S. Geological Survey in the use of this data, software, or 
related materials.
Any use of trade, product, or firm names is for descriptive 
purposes only and does not imply endorsement by the U.S. 
Government.</distliab>
    <stdorder>
      <digform>
        <digtinfo>
          <formname>Raster Digital Data Set</formname>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://doi.org/10.5066/F7668BB6</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <fees>None. This dataset is provided by USGS as a public service.</fees>
    </stdorder>
  </distinfo>
  <metainfo>
    <metd>20220829</metd>
    <metc>
      <cntinfo>
        <cntperp>
          <cntper>James Falcone</cntper>
          <cntorg>U.S. Geological Survey</cntorg>
        </cntperp>
        <cntpos>Ask USGS -- Water Webserver Team</cntpos>
        <cntaddr>
          <addrtype>Mailing</addrtype>
          <address>12201 Sunrise Valley Dr.</address>
          <city>Reston</city>
          <state>VA</state>
          <postal>20192</postal>
          <country>USA</country>
        </cntaddr>
        <cntvoice>1-888-275-8747 (1-888-ASK-USGS)</cntvoice>
        <cntemail>jfalcone@usgs.gov</cntemail>
      </cntinfo>
    </metc>
    <metstdn>FGDC Content Standard for Digital Geospatial Metadata</metstdn>
    <metstdv>FGDC-STD-001-1998</metstdv>
  </metainfo>
</metadata>
