@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/0533a410-b1fe-408d-b21a-78aa2cd657a7> a dcat:Dataset ;
    dct:description """<strong>A. SUMMARY</strong>
Census blocks with Pacific Ocean and San Francisco Bay water clipped out. Census Block groups are the next level above census blocks in the geographic hierarchy. Block groups are a combination of census blocks that is a subdivision of a census tract.A block group consists of all census blocks whose numbers begin with the same digit in a given census tract; for example, block group 3 includes all census blocks numbered in the 300s. More information on the census tracts can be found <u><a href="https://www.census.gov/programs-surveys/geography/about/glossary.html#:~:text=Block%20Groups%20(BGs)%20are%20statistical,data%20and%20control%20block%20numbering.">here</a></u>.

<strong>B. HOW THE DATASET IS CREATED</strong>
The boundaries are uploaded from TIGER/Line shapefiles provided by the <u><a href="https://www.census.gov/cgi-bin/geo/shapefiles/index.php?year=2021&layergroup=Block+Groups">U.S. Census Bureau</a></u> and clipped using the <u><a href="https://www.census.gov/cgi-bin/geo/shapefiles/index.php?year=2021&layergroup=Water">water boundaries</a></u> provided by the U.S. Census Bureau. 
 
<strong>C. UPDATE PROCESS</strong>
This dataset is static. Changes to the census blocks are tracked in multiple datasets. See here for <u><a href="https://data.sfgov.org/d/wymm-gfht">2000</a></u> census tract boundaries. 

<strong>D. HOW TO USE THIS DATASET</strong>
This boundary file can be joined to other census datasets on GEOID. Column descriptions can be found on in the <u><a href="https://www.census.gov/programs-surveys/geography/technical-documentation/complete-technical-documentation/tiger-geo-line.2020.html">technical documentation</a></u> included on the census.gov website


<strong>E. RELATED DATASETS</strong>
<u><a href="https://data.sfgov.org/d/tmph-tgz9">Census 2020: Census Tracts for San Francisco</a></u> 
 <u><a href="https://data.sfgov.org/d/sevw-6tgi">Analysis Neighborhoods - 2020 census tracts assigned to neighborhoods</a></u> 
 <u><a href="https://data.sfgov.org/d/p2fw-hsrv">Census 2020: Blocks for San Francisco</a></u>
 <u><a href="https://data.sfgov.org/d/e2st-aufe">Census 2020: Blocks for San Francisco Clipped to SF Shoreline</a></u>
 <u><a href="https://data.sfgov.org/d/24e8-pd2q">Census 2020: Blocks Groups for San Francisco</a></u>""" ;
    dct:identifier <https://data.sfgov.org/api/views/6rf8-dnst> ;
    dct:issued "2022-07-22"^^xsd:date ;
    dct:modified "2024-03-13"^^xsd:date ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:title "Census 2020: Block Groups for San Francisco Clipped to the Shoreline" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Tania Jogesh" ;
            vcard:hasEmail <mailto:no-reply@data.sfgov.org> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/0533a410-b1fe-408d-b21a-78aa2cd657a7/resource/38c56a4c-e753-4ca6-a401-5f5d746e40a8>,
        <https://data.amerigeoss.org/dataset/0533a410-b1fe-408d-b21a-78aa2cd657a7/resource/4f25a830-cd33-40fb-be56-141275a74660>,
        <https://data.amerigeoss.org/dataset/0533a410-b1fe-408d-b21a-78aa2cd657a7/resource/6f935e47-ea70-4669-9b91-7ec7eecaef78>,
        <https://data.amerigeoss.org/dataset/0533a410-b1fe-408d-b21a-78aa2cd657a7/resource/a99712a1-04eb-42e3-86c1-336fa57fce42> ;
    dcat:keyword "AmeriGEO",
        "AmeriGEOSS",
        "CKAN",
        "GEO",
        "GEOSS",
        "National",
        "North America",
        "United States",
        "census",
        "census-block-group" ;
    dcat:theme <%7B%22Geographic%20Locations%20and%20Boundaries%22%7D> .

<https://data.amerigeoss.org/dataset/0533a410-b1fe-408d-b21a-78aa2cd657a7/resource/38c56a4c-e753-4ca6-a401-5f5d746e40a8> a dcat:Distribution ;
    dct:format "XML" ;
    dct:issued "2022-09-09T08:04:39.605438"^^xsd:dateTime ;
    dct:modified "2025-09-23T16:32:49.072184"^^xsd:dateTime ;
    dct:title "XML File" ;
    dcat:accessURL <https://data.sfgov.org/api/views/6rf8-dnst/rows.xml?accessType=DOWNLOAD> ;
    dcat:mediaType "application/xml" .

<https://data.amerigeoss.org/dataset/0533a410-b1fe-408d-b21a-78aa2cd657a7/resource/4f25a830-cd33-40fb-be56-141275a74660> a dcat:Distribution ;
    dct:format "RDF" ;
    dct:issued "2022-09-09T08:04:39.605430"^^xsd:dateTime ;
    dct:modified "2025-09-23T16:32:49.070664"^^xsd:dateTime ;
    dct:title "RDF File" ;
    dcat:accessURL <https://data.sfgov.org/api/views/6rf8-dnst/rows.rdf?accessType=DOWNLOAD> ;
    dcat:mediaType "application/rdf+xml" .

<https://data.amerigeoss.org/dataset/0533a410-b1fe-408d-b21a-78aa2cd657a7/resource/6f935e47-ea70-4669-9b91-7ec7eecaef78> a dcat:Distribution ;
    dct:format "JSON" ;
    dct:issued "2022-09-09T08:04:39.605435"^^xsd:dateTime ;
    dct:modified "2025-09-23T16:32:49.071414"^^xsd:dateTime ;
    dct:title "JSON File" ;
    dcat:accessURL <https://data.sfgov.org/api/views/6rf8-dnst/rows.json?accessType=DOWNLOAD> ;
    dcat:mediaType "application/json" .

<https://data.amerigeoss.org/dataset/0533a410-b1fe-408d-b21a-78aa2cd657a7/resource/a99712a1-04eb-42e3-86c1-336fa57fce42> a dcat:Distribution ;
    dct:format "CSV" ;
    dct:issued "2022-09-09T08:04:39.605424"^^xsd:dateTime ;
    dct:modified "2025-09-23T16:32:49.069776"^^xsd:dateTime ;
    dct:title "Comma Separated Values File" ;
    dcat:accessURL <https://data.sfgov.org/api/views/6rf8-dnst/rows.csv?accessType=DOWNLOAD> ;
    dcat:mediaType "text/csv" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .