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    Climate Vulnerability Mapping Tool Data Sources

    Maps

    The American Community Survey (ACS) 5-year (2011-2015) estimates were used for the demographic data presented in the vulnerability mapping tool. The estimates are based on collected data and are considered to be the most reliable when compared to the 1-year and 3 year estimates. Specific information on the sources of the data and methods for each ACS-derived indicator are available using American Factfinder (http://factfinder.census.gov/) Data sources for additional calculated variables are included and summarized below.

    Climate Vulnerability Data Sources
    SOURCE INDICATOR DATASET METHOD GEOGRAPHY
    Source: ACS 5 year data 2011-2015 Indicator:
    • Percent of Population Younger than 5
    • Percent of Population Younger than 15
    • Percent of Population Older than 65
    Dataset: Table S0101 AGE and SEX 2011-2015 American Community Survey 5-Year Estimates Method: Reported as percentage of population Geography: Tract
    Community
    Source: ACS 5 year data 2011-2015 Indicator: Percent Population Older than 65 Living Alone Dataset: Table S1101 HOUSEHOLDS AND FAMILIES  2011-2015 American Community Survey 5-Year Estimates Method: Divided total number of households by total population Geography: Tract
    Community
    Source: ACS 5 year data 2011-2015 Indicator: Percent of Population Living Alone Dataset: Table S1101 HOUSEHOLDS AND FAMILIES  2011-2015 American Community Survey 5-Year Estimates Method: Divided total number of households living alone by total population Geography: Tract
    Community
    Source: ACS 5 year data 2011-2015 Indicator: Percent of Population that Does Not Identify as White Dataset: Table S0601 SELECTED CHARACTERISTICS OF THE TOTAL AND NATIVE POPULATIONS IN THE UNITED STATES 2011-2015 American Community Survey 5-Year Estimates Method: Percent of people with one or more races identified as white and subtracted  that percent from 1 Geography: Tract
    Community
    Source: ACS 5 year data 2011-2015 Indicator: Percent pf Population Living Without High School Education Dataset: Table B15003 EDUCATIONAL ATTAINMENT FOR THE POPULATION 25 YEARS AND OVER Universe: Population 25 years and 2011-2015 American Community Survey 5-Year Estimates Method: Divided total with less than high school graduate by total population Geography: Tract
    Community
    Source: ACS 5 year data 2011-2015 Indicator: Percent of Population Living at or Below Poverty Dataset: Table S1701 POVERTY STATUS IN THE PAST 12 MONTHS  2011-2015 American Community Survey 5-Year Estimates Method: Reported as percent below poverty level for whom poverty status has been determined Geography: Tract
    Community
    Source: FEMA  and MassGIS Indicator: Percent of Residential Land in 100 year flood zone Dataset: FEMA 2014 flood zones: http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/nfhl.html
    FEMA Q3 flood zones: http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/q3.html
    MassGIS Land Use Layer: http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/lus2005.html
    Method: Calculated the percent of community area classified as residential land that overlaps FEMA 100 year flood zones. Geography: Community
    Source: FEMA, MassGIS, ACS Indicator: Estimated Population Living in 100 year flood zone Dataset: Percent of Residential Land in 100 year flood zone (above)
    Population: http://www.massbenchmarks.org
    /statedata/data/mdc2016
    /Appendix_A_2016_MCD
    _Pop_and_Pop_Change.xls
    Method: Multiplied Percent of Residential Land in 100 year Flood Zone by Community Population Geography: Community
    Source: FEMA  and MassGIS Indicator: Percent of Residential Land in 500 year flood zone Dataset: FEMA 2014 flood zones: http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/nfhl.html
    FEMA Q3 flood zones: http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/q3.html
    MassGIS Land Use Layer: http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/lus2005.html
    Method: Calculated the percent of community area classified as residential land that overlaps FEMA 500 year flood zones. Geography: Community
    Source: FEMA, MassGIS, ACS Indicator: Estimated Population Living in 500 year flood zone Dataset: Percent of Residential Land in 500 year flood zone (above)
    Population: http://www.massbenchmarks.org
    /statedata/data/mdc2016
    /Appendix_A_2016_MCD
    _Pop_and_Pop_Change.xls
    Method: Multiplied Percentyof Residential Land in 500 year Flood Zone by Community Population Geography: Community
    Source: MassGIS Indicator: Percent of Public Open Space Dataset: http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/osp.html Method: Calculated percent of open space in each community by dividing area of publically available open space by total community land area Geography: Community
    Source: MassGIS Indicator: Impervious areas Dataset: http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/impervioussurface.html" Method: Depicts impervious surfaces covering the Commonwealth of Massachusetts. The surfaces were extracted from near infrared orthoimagery acquired in April 2005. Geography: State

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