100+ datasets found
  1. v

    Long-term and short-term shoreline change rates for Outer Cape Cod,...

    • res1catalogd-o-tdatad-o-tgov.vcapture.xyz
    • data.doi.gov
    • +1more
    Updated Jul 6, 2024
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    U.S. Geological Survey (2024). Long-term and short-term shoreline change rates for Outer Cape Cod, Massachusetts calculated with and without the proxy-datum bias using the Digital Shoreline Analysis System version 5.0 [Dataset]. https://res1catalogd-o-tdatad-o-tgov.vcapture.xyz/dataset/long-term-and-short-term-shoreline-change-rates-for-outer-cape-cod-massachusetts-calculate
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    Dataset updated
    Jul 6, 2024
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Area covered
    Cape Cod, Massachusetts
    Description

    The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast. The shoreline position and change rate are used to inform management decisions regarding the erosion of coastal resources. In 2001, a shoreline from 1994 was added to calculate both long- and short-term shoreline change rates along ocean-facing sections of the Massachusetts coast. In 2013, two oceanfront shorelines for Massachusetts were added using 2008-9 color aerial orthoimagery and 2007 topographic lidar datasets obtained from the National Oceanic and Atmospheric Administration's Ocean Service, Coastal Services Center. This 2018 data release includes rates that incorporate two new mean high water (MHW) shorelines for the Massachusetts coast extracted from lidar data collected between 2010 and 2014. The first new shoreline for the State includes data from 2010 along the North Shore and South Coast from lidar data collected by the U.S. Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise. Shorelines along the South Shore and Outer Cape are from 2011 lidar data collected by the U.S. Geological Survey's (USGS) National Geospatial Program Office. Shorelines along Nantucket and Martha’s Vineyard are from a 2012 USACE Post Sandy Topographic lidar survey. The second new shoreline for the North Shore, Boston, South Shore, Cape Cod Bay, Outer Cape, South Cape, Nantucket, Martha’s Vineyard, and the South Coast (around Buzzards Bay to the Rhode Island Border) is from 2013-14 lidar data collected by the (USGS) Coastal and Marine Geology Program. This 2018 update of the rate of shoreline change in Massachusetts includes two types of rates. Some of the rates include a proxy-datum bias correction, this is indicated in the filename with “PDB”. The rates that do not account for this correction have “NB” in their file names. The proxy-datum bias is applied because in some areas a proxy shoreline (like a High Water Line shoreline) has a bias when compared to a datum shoreline (like a Mean High Water shoreline). In areas where it exists, this bias should be accounted for when calculating rates using a mix of proxy and datum shorelines. This issue is explained further in Ruggiero and List (2009) and in the process steps of the metadata associated with the rates. This release includes both long-term (~150 years) and short term (~30 years) rates. Files associated with the long-term rates have “LT” in their names, files associated with short-term rates have “ST” in their names.

  2. u

    Massachusetts LT rates

    • marine.usgs.gov
    Updated Oct 17, 2023
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    (2023). Massachusetts LT rates [Dataset]. https://marine.usgs.gov/coastalchangehazardsportal/ui/info/item/EuTvXS6c
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    Dataset updated
    Oct 17, 2023
    Area covered
    Description

    The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast and support local land-use decisions. Trends of shoreline position over long and short-term timescales provide information to landowners, managers, and potential buyers about possible future impacts to coastal resources and infrastructure. In 2001, a 1994 shoreline was added to calculate both long- and short-term shoreline change rates along ocean-facing sections of the Massachusetts coast. In 2013 two oceanfront shorelines for Massachusetts were added using 2008-2009 color aerial orthoimagery and 2007 topographic lidar datasets obtained from NOAA's Ocean Service, Coastal Services Center. In 2018, two new mean high water (MHW) shorelines for the Massachusetts coast extracted from lidar data between 2010-2014 were added to the dataset. This 2021 data release includes rates that incorporate one new shoreline extracted from 2018 lidar data collected by the U.S. Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX), added to the existing database of all historical shorelines (1844-2014), for the North Shore, South Shore, Cape Cod Bay, Outer Cape, Buzzard’s Bay, South Cape, Nantucket, and Martha’s Vineyard, excluding Boston harbor and the Elizabeth Islands. Included in this data release is a proxy-datum bias reference line that accounts for the positional difference in a proxy shoreline (like a High Water Line shoreline) and a datum shoreline (like a Mean High Water shoreline). This release includes both long-term (~150+ years) and short term (~30 years) rates. Files associated with the long-term rates have 'LT'; in their names, files associated with short-term rates have 'ST'; in their names.

  3. u

    Boston shorelines

    • marine.usgs.gov
    Updated Jun 8, 2016
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    (2016). Boston shorelines [Dataset]. https://marine.usgs.gov/coastalchangehazardsportal/ui/info/item/Euvv7yHd
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    Dataset updated
    Jun 8, 2016
    Area covered
    Description

    This dataset includes shorelines from 161 years ranging from 1847 to 2008 within the Boston coastal region from Carson Beach in South Boston to Weymouth River, including the Boston Harbor Islands. Shorelines were compiled from T-sheets and air-photos obtained from the National Oceanic and Atmospheric Administration (NOAA) and the Massachusetts Office of Coastal Zone Management (MA CZM). Historical shoreline positions serve as easily understood features that can be used to describe the movement of beaches through time. These data are used to calculate rates of shoreline change for the MA CZM Shoreline Change Project. Rates of long-term and short-term shoreline change were generated in a GIS using the Digital Shoreline Analysis System (DSAS) version 4.3. DSAS uses a measurement baseline method to calculate rate-of-change statistics. Transects are cast from the reference baseline to intersect each shoreline, establishing measurement points used to calculate shoreline change rates. For publication purposes, the shoreline data for Massachusetts were organized by region in order match the extent of previously published uncertainty files used in shoreline change calculations. Due to continued coastal population growth and increased threats of erosion, current data on trends and rates of shoreline movement are required to inform shoreline and floodplain management. The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast. In 2001, a 1994 shoreline was added to calculate both long- and short-term shoreline change rates at 40-meter intervals along ocean-facing sections of the Massachusetts coast. The Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) in cooperation with the Massachusetts Office of Coastal Zone Management, has compiled reliable historical shoreline data along open-facing sections of the Massachusetts coast under the Massachusetts Shoreline Change Mapping and Analysis Project 2013 Update. Two oceanfront shorelines for Massachusetts (approximately 1,800 km) were (1) delineated using 2008/09 color aerial orthoimagery, and (2) extracted from topographic LIDAR datasets (2007) obtained from NOAA's Ocean Service, Coastal Services Center. The new shorelines were integrated with existing Massachusetts Office of Coastal Zone Management (MA CZM) and USGS historical shoreline data in order to compute long- and short-term rates using the latest version of the Digital Shoreline Analysis System (DSAS)..

  4. u

    North Shore Shorelines

    • marine.usgs.gov
    Updated Mar 4, 2020
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    (2020). North Shore Shorelines [Dataset]. https://marine.usgs.gov/coastalchangehazardsportal/ui/info/item/HAcLfmWm
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    Dataset updated
    Mar 4, 2020
    Area covered
    Description

    This dataset includes shorelines from 167 years ranging from 1847 to 2014 within the North Shore coastal region of Massachusetts. Shorelines were compiled from T-sheets and air-photos obtained from the National Oceanic and Atmospheric Administration (NOAA) and the Massachusetts Office of Coastal Zone Management (MA CZM), and lidar obtained from the US Geological Survey (USGS). Historical shoreline positions serve as easily understood features that can be used to describe the movement of beaches through time. These data are used to calculate rates of shoreline change for the MA CZM Shoreline Change Project. Rates of long-term and short-term shoreline change were generated in a GIS using the Digital Shoreline Analysis System (DSAS) version 5.0. DSAS uses a measurement baseline method to calculate rate-of-change statistics. In 2001, a 1994 shoreline was added to calculate both long- and short-term shoreline change rates at 40-meter intervals along ocean-facing sections of the Massachusetts coast. In 2013 two oceanfront shorelines for Massachusetts were added using 2008-2009 color aerial orthoimagery and 2007 topographic lidar datasets obtained from NOAA's Ocean Service, Coastal Services Center. This 2018 update includes two new mean high water (MHW) shorelines for the Massachusetts coast extracted from lidar data collected between 2010-2014. The new shorelines were integrated with existing Massachusetts Office of Coastal Zone Management (MA CZM) and USGS historical shoreline data to compute long- and short-term rates using the latest version of the Digital Shoreline Analysis System (DSAS). For publication purposes, the shoreline data for Massachusetts were organized by region in order match the extent of previously published uncertainty files used in shoreline change calculations.

  5. d

    Long-term and short-term shoreline change rates for the region of Nantucket,...

    • datasets.ai
    • res1catalogd-o-tdatad-o-tgov.vcapture.xyz
    • +1more
    55
    Updated Sep 11, 2024
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    Department of the Interior (2024). Long-term and short-term shoreline change rates for the region of Nantucket, Massachusetts, calculated with and without the proxy-datum bias using the Digital Shoreline Analysis System version 5.1 [Dataset]. https://datasets.ai/datasets/long-term-and-short-term-shoreline-change-rates-for-the-region-of-nantucket-massachusetts-
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    55Available download formats
    Dataset updated
    Sep 11, 2024
    Dataset authored and provided by
    Department of the Interior
    Area covered
    Nantucket, Massachusetts
    Description

    The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast and support local land-use decisions. Trends of shoreline position over long and short-term timescales provide information to landowners, managers, and potential buyers about possible future impacts to coastal resources and infrastructure. In 2001, a 1994 shoreline was added to calculate both long- and short-term shoreline change rates along ocean-facing sections of the Massachusetts coast. In 2013 two oceanfront shorelines for Massachusetts were added using 2008-2009 color aerial orthoimagery and 2007 topographic lidar datasets obtained from NOAA's Ocean Service, Coastal Services Center. In 2018, two new mean high water (MHW) shorelines for the Massachusetts coast extracted from lidar data between 2010-2014 were added to the dataset. This 2021 data release includes rates that incorporate one new shoreline extracted from 2018 lidar data collected by the U.S. Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX), added to the existing database of all historical shorelines (1844-2014), for the North Shore, South Shore, Cape Cod Bay, Outer Cape, Buzzard’s Bay, South Cape, Nantucket, and Martha’s Vineyard. 2018 lidar data did not cover the Boston or Elizabeth Islands regions. Included in this data release is a proxy-datum bias reference line that accounts for the positional difference in a proxy shoreline (like a High Water Line shoreline) and a datum shoreline (like a Mean High Water shoreline. This issue is explained further in Ruggiero and List (2009) and in the process steps of the metadata associated with the rates. This release includes both long-term (~150+ years) and short term (~30 years) rates. Files associated with the long-term rates have "LT"; in their names, files associated with short-term rates have "ST"; in their names.

  6. o

    Long Wharf Cross Street Data in Boston, MA

    • ownerly.com
    Updated Apr 19, 2022
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    Ownerly (2022). Long Wharf Cross Street Data in Boston, MA [Dataset]. https://www.ownerly.com/ma/boston/long-wharf-home-details
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    Dataset updated
    Apr 19, 2022
    Dataset authored and provided by
    Ownerly
    Area covered
    Long Wharf, Boston, Massachusetts
    Description

    This dataset provides information about the number of properties, residents, and average property values for Long Wharf cross streets in Boston, MA.

  7. u

    South Shore LT rates

    • marine.usgs.gov
    Updated Feb 28, 2020
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    (2020). South Shore LT rates [Dataset]. https://marine.usgs.gov/coastalchangehazardsportal/ui/info/item/HzEnSjFr
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    Dataset updated
    Feb 28, 2020
    Area covered
    Description

    This dataset consists of long-term (100+ years) linear regression shoreline change rates for the South Shore region of Massachusetts. Rates of long-term shoreline change were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 5.0, an ArcGIS extension developed by the U.S. Geological Survey. The baseline is used as a reference line for the transects cast by the DSAS software. The transects intersect each shoreline at the measurement points, which are then used to calculate a linear regression rate for the Massachusetts Office of Coastal Zone Management Shoreline Change Project. Long-term linear regression statistics were calculated with all of the historical shorelines compiled for the Massachusetts Office of Coastal Zone Management Shoreline Change Project. Due to continued coastal population growth and increased threats of erosion, current data on trends and rates of shoreline movement are required to inform shoreline and floodplain management. The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast. In 2001, a 1994 shoreline was added to calculate both long- and short-term shoreline change rates at 40-meter intervals along ocean-facing sections of the Massachusetts coast. In the Massachusetts Shoreline Change Mapping and Analysis Project 2013 Update, two oceanfront shorelines for Massachusetts (approximately 1,800 km) were (1) delineated using 2008/09 color aerial orthoimagery, and (2) extracted from topographic LIDAR datasets (2007) obtained from NOAA's Ocean Service, Coastal Services Center. The most recent 2018 data release includes rates that incorporate two new mean high water (MHW) shorelines for the Massachusetts coast extracted from lidar data collected between 2010 and 2014. The new shorelines were integrated with existing Massachusetts Office of Coastal Zone Management and USGS historical shoreline data in order to compute long- and short-term rates using the latest version of the Digital Shoreline Analysis System (DSAS)

  8. d

    Long-term and short-term shoreline change rates for coastal region around...

    • catalog.data.gov
    • datasets.ai
    Updated Jul 6, 2024
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    U.S. Geological Survey (2024). Long-term and short-term shoreline change rates for coastal region around Boston, Massachusetts calculated without the proxy-datum bias using the Digital Shoreline Analysis System version 5.0 [Dataset]. https://catalog.data.gov/dataset/long-term-and-short-term-shoreline-change-rates-for-coastal-region-around-boston-massachus
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    Dataset updated
    Jul 6, 2024
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Area covered
    Boston, Massachusetts
    Description

    The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast. The shoreline position and change rate are used to inform management decisions regarding the erosion of coastal resources. In 2001, a shoreline from 1994 was added to calculate both long- and short-term shoreline change rates along ocean-facing sections of the Massachusetts coast. In 2013, two oceanfront shorelines for Massachusetts were added using 2008-9 color aerial orthoimagery and 2007 topographic lidar datasets obtained from the National Oceanic and Atmospheric Administration's Ocean Service, Coastal Services Center. This 2018 data release includes rates that incorporate two new mean high water (MHW) shorelines for the Massachusetts coast extracted from lidar data collected between 2010 and 2014. The first new shoreline for the State includes data from 2010 along the North Shore and South Coast from lidar data collected by the U.S. Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise. Shorelines along the South Shore and Outer Cape are from 2011 lidar data collected by the U.S. Geological Survey's (USGS) National Geospatial Program Office. Shorelines along Nantucket and Martha’s Vineyard are from a 2012 USACE Post Sandy Topographic lidar survey. The second new shoreline for the North Shore, Boston, South Shore, Cape Cod Bay, Outer Cape, South Cape, Nantucket, Martha’s Vineyard, and the South Coast (around Buzzards Bay to the Rhode Island Border) is from 2013-14 lidar data collected by the (USGS) Coastal and Marine Geology Program. This 2018 update of the rate of shoreline change in Massachusetts includes two types of rates. Some of the rates include a proxy-datum bias correction, this is indicated in the filename with “PDB”. The rates that do not account for this correction have “NB” in their file names. The proxy-datum bias is applied because in some areas a proxy shoreline (like a High Water Line shoreline) has a bias when compared to a datum shoreline (like a Mean High Water shoreline). In areas where it exists, this bias should be accounted for when calculating rates using a mix of proxy and datum shorelines. This issue is explained further in Ruggiero and List (2009) and in the process steps of the metadata associated with the rates. This release includes both long-term (~150 years) and short term (~30 years) rates. Files associated with the long-term rates have "LT" in their names, files associated with short-term rates have "ST" in their names.

  9. a

    Long Term Care Residences (Feature Service)

    • geo-massdot.opendata.arcgis.com
    Updated Feb 26, 2024
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    MassGIS - Bureau of Geographic Information (2024). Long Term Care Residences (Feature Service) [Dataset]. https://geo-massdot.opendata.arcgis.com/datasets/massgis::long-term-care-residences-feature-service
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    Dataset updated
    Feb 26, 2024
    Dataset authored and provided by
    MassGIS - Bureau of Geographic Information
    Area covered
    Description

    This map service is based on the Long Term Care Residences point datalayer and contains the locations of licensed nursing homes, rest homes and assisted living residences in Massachusetts.Long-term care residences provide housing and services for individuals who are managing illness and/or disability attributed to physical and/or mental health conditions. While terminology may vary, generally long-term care facilities are distinguished by the type of medical and custodial (non-medical services such as dressing, bathing, etc.) care they provide, the relative independence of their residents, and the types of on-site amenities. Furthermore, some facilities cater to specific patient populations (e.g. Alzheimer's patients).For the purposes of this datalayer, a nursing home is defined as a residential facility that provides 24-hour nursing care, rehabilitative services and activities of daily living to the chronically ill who require a relatively high level of institutional support. A rest home provides 24-hour supervision and supportive services for individuals who do not routinely need nursing or medical care. Similarly, assisted living residences provide residents with housing and various daily living support services, but usually do not offer medical care. Assisted living residences often emphasize greater autonomy and privacy for residents through individual apartment-style rentals. Other residential facilities that provide long term care such as group homes (i.e. boarding homes or congregate housing) and hospice facilities are not explicitly specified in this datalayer. Many locations in this datalayer, however, may offer additional services ranging from independent retirement living to intensive skilled nursing and palliative care. Non-residential care locations such as adult day health, rehabilitation, and senior centers are omitted.See the datalayer's full metadata for more information.A Map Service also is available.

  10. o

    Long Road Cross Street Data in Fairhaven, MA

    • ownerly.com
    Updated Dec 8, 2021
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    Ownerly (2021). Long Road Cross Street Data in Fairhaven, MA [Dataset]. https://www.ownerly.com/ma/fairhaven/long-rd-home-details
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    Dataset updated
    Dec 8, 2021
    Dataset authored and provided by
    Ownerly
    Area covered
    Fairhaven, Massachusetts
    Description

    This dataset provides information about the number of properties, residents, and average property values for Long Road cross streets in Fairhaven, MA.

  11. o

    Long Pond Drive Cross Street Data in Harwich, MA

    • ownerly.com
    Updated Mar 9, 2022
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    Ownerly (2022). Long Pond Drive Cross Street Data in Harwich, MA [Dataset]. https://www.ownerly.com/ma/harwich/long-pond-dr-home-details
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    Dataset updated
    Mar 9, 2022
    Dataset authored and provided by
    Ownerly
    Area covered
    Long Pond Drive, Harwich, Massachusetts
    Description

    This dataset provides information about the number of properties, residents, and average property values for Long Pond Drive cross streets in Harwich, MA.

  12. u

    Cape Cod Bay LT rates

    • marine.usgs.gov
    Updated Feb 28, 2020
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    (2020). Cape Cod Bay LT rates [Dataset]. https://marine.usgs.gov/coastalchangehazardsportal/ui/info/item/HzEwVtsu
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    Dataset updated
    Feb 28, 2020
    Area covered
    Description

    This dataset consists of long-term (100+ years) linear regression shoreline change rates for the Cape Cod Bay region of Massachusetts. Rates of long-term shoreline change were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 5.0, an ArcGIS extension developed by the U.S. Geological Survey. The baseline is used as a reference line for the transects cast by the DSAS software. The transects intersect each shoreline at the measurement points, which are then used to calculate a linear regression rate for the Massachusetts Office of Coastal Zone Management Shoreline Change Project. Long-term linear regression statistics were calculated with all of the historical shorelines compiled for the Massachusetts Office of Coastal Zone Management Shoreline Change Project. Due to continued coastal population growth and increased threats of erosion, current data on trends and rates of shoreline movement are required to inform shoreline and floodplain management. The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast. In 2001, a 1994 shoreline was added to calculate both long- and short-term shoreline change rates at 40-meter intervals along ocean-facing sections of the Massachusetts coast. In the Massachusetts Shoreline Change Mapping and Analysis Project 2013 Update, two oceanfront shorelines for Massachusetts (approximately 1,800 km) were (1) delineated using 2008/09 color aerial orthoimagery, and (2) extracted from topographic LIDAR datasets (2007) obtained from NOAA's Ocean Service, Coastal Services Center. The most recent 2018 data release includes rates that incorporate two new mean high water (MHW) shorelines for the Massachusetts coast extracted from lidar data collected between 2010 and 2014. The new shorelines were integrated with existing Massachusetts Office of Coastal Zone Management and USGS historical shoreline data in order to compute long- and short-term rates using the latest version of the Digital Shoreline Analysis System (DSAS)

  13. m

    Massachusetts Municipalities with Generalized Coast (Hosted Feature Layer)

    • gis.data.mass.gov
    • hub.arcgis.com
    • +1more
    Updated Aug 13, 2020
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    MassGIS - Bureau of Geographic Information (2020). Massachusetts Municipalities with Generalized Coast (Hosted Feature Layer) [Dataset]. https://gis.data.mass.gov/maps/33061b8aef6848e1aeb9a4c059d62ed9
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    Dataset updated
    Aug 13, 2020
    Dataset authored and provided by
    MassGIS - Bureau of Geographic Information
    Area covered
    Description

    The political boundary datalayer is a polygon representation of town boundaries created from arcs developed from survey coordinates extracted from the 68-volume Harbor and Lands Commission Town Boundary Atlas for the 351 communities (cities and towns) in Massachusetts. The Atlas was published in the early 1900's and is maintained by the Survey Section of Massachusetts Highway Department. For communities with a coastal boundary, MassGIS has collaborated with Massachusetts Water Resources Authority and the Department of Environmental Protection to complete a 1:12000 scale coastline. The boundary for the coastline was defined as being the upland side of tidal flats and rocky inter-tidal zones. Note that the 351 communities are the official municipal names, not including "villages" or other sections of towns.This datalayer was created for the purposes of providing an up-to-date polygon version of the town boundaries for the 351 cities and towns of the Commonwealth of Massachusetts. The legislative intent for some boundaries could not be mapped. Boundaries where that is true are identified in the attribute information. This layer contains multi-part polygons, one for each municipality. The coastline on this layer has been generalized for small-scale cartography and faster display in web map services.See the layer metadata for details.

  14. o

    Long Hill Road Cross Street Data in Rowley, MA

    • ownerly.com
    Updated Dec 6, 2021
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    Ownerly (2021). Long Hill Road Cross Street Data in Rowley, MA [Dataset]. https://www.ownerly.com/ma/rowley/long-hill-rd-home-details
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    Dataset updated
    Dec 6, 2021
    Dataset authored and provided by
    Ownerly
    Area covered
    Rowley, Long Hill Road, Massachusetts
    Description

    This dataset provides information about the number of properties, residents, and average property values for Long Hill Road cross streets in Rowley, MA.

  15. o

    Old Long Pond Road Cross Street Data in Brewster, MA

    • ownerly.com
    Updated Mar 19, 2022
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    Ownerly (2022). Old Long Pond Road Cross Street Data in Brewster, MA [Dataset]. https://www.ownerly.com/ma/brewster/old-long-pond-rd-home-details
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    Dataset updated
    Mar 19, 2022
    Dataset authored and provided by
    Ownerly
    Area covered
    Brewster, Old Long Pond Road, Massachusetts
    Description

    This dataset provides information about the number of properties, residents, and average property values for Old Long Pond Road cross streets in Brewster, MA.

  16. d

    Baselines for the coast of Martha's Vineyard, Massachusetts, generated to...

    • catalog.data.gov
    • datasets.ai
    • +1more
    Updated Jul 21, 2024
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    U.S. Geological Survey (2024). Baselines for the coast of Martha's Vineyard, Massachusetts, generated to calculate shoreline change rates using the Digital Shoreline Analysis System version 5.1 [Dataset]. https://catalog.data.gov/dataset/baselines-for-the-coast-of-marthas-vineyard-massachusetts-generated-to-calculate-shoreline
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    Dataset updated
    Jul 21, 2024
    Dataset provided by
    U.S. Geological Survey
    Area covered
    Martha's Vineyard, Massachusetts
    Description

    The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast by compiling a database of historical (mid 1800's-1989) shoreline positions. Trends of shoreline position over long and short-term timescales provide information to landowners, managers, and potential buyers about possible future impacts to coastal resources and infrastructure. In 2001, a 1994 shoreline was added to calculate both long- and short-term shoreline change rates along ocean-facing sections of the Massachusetts coast. In 2013, two oceanfront shorelines for Massachusetts were added using 2008-2009 color aerial orthoimagery and 2007 topographic lidar datasets obtained from the National Oceanic and Atmospheric Administration's Ocean Service (NOAA), Coastal Services Center. In 2018, two new mean high water (MHW) shorelines for the Massachusetts coast extracted from lidar data between 2010-2014 were added to the dataset. This 2021 data release includes rates that incorporate one new shoreline from lidar data extracted in 2018 by the U.S. Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX), added to the existing database of all historical shorelines (1844-2014), for the North Shore, South Shore, Cape Cod Bay, Outer Cape, Buzzard’s Bay, South Cape, Nantucket, and Martha’s Vineyard. 2018 lidar data did not cover the Boston or Elizabeth Islands regions. Included in this data release is a proxy-datum bias reference line that accounts for the positional difference in a proxy shoreline (the High Water Line shoreline) and a datum shoreline (the Mean High Water shoreline). This issue is explained further in Ruggiero and List (2009) and in the process steps of the metadata associated with the rates. This release includes both long-term (~150+ years) and short term (~30 years) rates. Files associated with the long-term rates have “LT” in their names, files associated with short-term rates have "ST” in their names.

  17. d

    Long-term and short-term shoreline change rates for the region of the...

    • catalog.data.gov
    Updated Jul 21, 2024
    + more versions
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    U.S. Geological Survey (2024). Long-term and short-term shoreline change rates for the region of the Elizabeth Islands, Massachusetts, calculated with and without the proxy-datum bias using the Digital Shoreline Analysis System version 5.1 [Dataset]. https://catalog.data.gov/dataset/long-term-and-short-term-shoreline-change-rates-for-the-region-of-the-elizabeth-islands-ma
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    Dataset updated
    Jul 21, 2024
    Dataset provided by
    U.S. Geological Survey
    Area covered
    Elizabeth Islands, Massachusetts
    Description

    The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast and support local land-use decisions. Trends of shoreline position over long and short-term timescales provide information to landowners, managers, and potential buyers about possible future impacts to coastal resources and infrastructure. In 2001, a 1994 shoreline was added to calculate both long- and short-term shoreline change rates along ocean-facing sections of the Massachusetts coast. In 2013 two oceanfront shorelines for Massachusetts were added using 2008-2009 color aerial orthoimagery and 2007 topographic lidar datasets obtained from NOAA's Ocean Service, Coastal Services Center. In 2018, two new mean high water (MHW) shorelines for the Massachusetts coast extracted from lidar data between 2010-2014 were added to the dataset. This 2021 data release includes rates that incorporate one new shoreline extracted from 2018 lidar data collected by the U.S. Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX), added to the existing database of all historical shorelines (1844-2014), for the North Shore, South Shore, Cape Cod Bay, Outer Cape, Buzzard’s Bay, South Cape, Nantucket, and Martha’s Vineyard. 2018 lidar data did not cover the Boston or Elizabeth Islands regions. Included in this data release is a proxy-datum bias reference line that accounts for the positional difference in a proxy shoreline (like a High Water Line shoreline) and a datum shoreline (like a Mean High Water shoreline. This issue is explained further in Ruggiero and List (2009) and in the process steps of the metadata associated with the rates. This release includes both long-term (~150+ years) and short term (~30 years) rates. Files associated with the long-term rates have "LT"; in their names, files associated with short-term rates have "ST"; in their names.

  18. d

    Passed Resolves; Resolves 1969, c.61, SC1/series 228, Petition of Charles W....

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    • dataverse.harvard.edu
    Updated Nov 21, 2023
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    Digital Archive of Massachusetts Anti-Slavery and Anti-Segregation Petitions, Massachusetts Archives, Boston MA (2023). Passed Resolves; Resolves 1969, c.61, SC1/series 228, Petition of Charles W. Long [Dataset]. http://doi.org/10.7910/DVN/MKWJWU
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    Dataset updated
    Nov 21, 2023
    Dataset provided by
    Harvard Dataverse
    Authors
    Digital Archive of Massachusetts Anti-Slavery and Anti-Segregation Petitions, Massachusetts Archives, Boston MA
    Time period covered
    Jan 2, 1969
    Description

    Petition subject: School discrimination Original: http://nrs.harvard.edu/urn-3:FHCL:25500541 Date of creation: (unknown) Petition location: Westwood Legislator, committee, or address that the petition was sent to: Charles W. Long, Westwood; committee on education Selected signatures:Charles W. Long Actions taken on dates: 1969-01-02,1969-01-02 Legislative action: Received in the House on January 2, 1969 and referred to the committee on education and sent for concurrence and received in the Senate on January 2, 1969 and concurred Total signatures: 1 Legislative action summary: Received, referred, sent, received, concurred Legal voter signatures (males not identified as non-legal): 1 Female only signatures: No Identifications of signatories: citizens Prayer format was printed vs. manuscript: Printed Additional non-petition or unrelated documents available at archive: additional documents available Additional archivist notes: to establish subsidies for the benefit of dental schools based on the number of residents enrolled in such schools, includes address Location of the petition at the Massachusetts Archives of the Commonwealth: Resolves 1969, c.61, passed August 4, 1969 Acknowledgements: Supported by the National Endowment for the Humanities (PW-5105612), Massachusetts Archives of the Commonwealth, Radcliffe Institute for Advanced Study at Harvard University, Center for American Political Studies at Harvard University, Institutional Development Initiative at Harvard University, and Harvard University Library.

  19. Data from: 1830 Map of Land Cover and Cultural Features in Massachusetts

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    • portal.edirepository.org
    Updated Feb 21, 2023
    + more versions
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    David Foster; Glenn Motzkin (2023). 1830 Map of Land Cover and Cultural Features in Massachusetts [Dataset]. https://search.dataone.org/view/https%3A%2F%2Fpasta.lternet.edu%2Fpackage%2Fmetadata%2Feml%2Fknb-lter-hfr%2F122%2F16
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    Dataset updated
    Feb 21, 2023
    Dataset provided by
    Long Term Ecological Research Networkhttp://www.lternet.edu/
    Authors
    David Foster; Glenn Motzkin
    Time period covered
    Jan 1, 1830 - Jan 1, 1831
    Area covered
    Description

    Background and Data Limitations The Massachusetts 1830 map series represents a unique data source that depicts land cover and cultural features during the historical period of widespread land clearing for agricultural. To our knowledge, Massachusetts is the only state in the US where detailed land cover information was comprehensively mapped at such an early date. As a result, these maps provide unusual insight into land cover and cultural patterns in 19th century New England. However, as with any historical data, the limitations and appropriate uses of these data must be recognized: (1) These maps were originally developed by many different surveyors across the state, with varying levels of effort and accuracy. (2) It is apparent that original mapping did not follow consistent surveying or drafting protocols; for instance, no consistent minimum mapping unit was identified or used by different surveyors; as a result, whereas some maps depict only large forest blocks, others also depict small wooded areas, suggesting that numerous smaller woodlands may have gone unmapped in many towns. Surveyors also were apparently not consistent in what they mapped as ‘woodlands’: comparison with independently collected tax valuation data from the same time period indicates substantial lack of consistency among towns in the relative amounts of ‘woodlands’, ‘unimproved’ lands, and ‘unimproveable’ lands that were mapped as ‘woodlands’ on the 1830 maps. In some instances, the lack of consistent mapping protocols resulted in substantially different patterns of forest cover being depicted on maps from adjoining towns that may in fact have had relatively similar forest patterns or in woodlands that ‘end’ at a town boundary. (3) The degree to which these maps represent approximations of ‘primary’ woodlands (i.e., areas that were never cleared for agriculture during the historical period, but were generally logged for wood products) varies considerably from town to town, depending on whether agricultural land clearing peaked prior to, during, or substantially after 1830. (4) Despite our efforts to accurately geo-reference and digitize these maps, a variety of additional sources of error were introduced in converting the mapped information to electronic data files (see detailed methods below). Thus, we urge considerable caution in interpreting these maps. Despite these limitations, the 1830 maps present an incredible wealth of information about land cover patterns and cultural features during the early 19th century, a period that continues to exert strong influence on the natural and cultural landscapes of the region. Acknowledgements Financial support for this project was provided by the BioMap Project of the Massachusetts Natural Heritage and Endangered Species Program, the National Science Foundation, and the Andrew Mellon Foundation. This project is a contribution of the Harvard Forest Long Term Ecological Research Program.

  20. e

    Data from: Long-term Vegetation Dynamics on the Massachusetts Coast from...

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    • search.dataone.org
    csv
    Updated Dec 4, 2023
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    Tim Parshall; David Foster (2023). Long-term Vegetation Dynamics on the Massachusetts Coast from 2000 BP to Present [Dataset]. http://doi.org/10.6073/pasta/d49f10ec87b2b7503a7ee908e94a5dba
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    csv(3611 byte), csv(614008 byte), csv(14541 byte), csv(2978 byte)Available download formats
    Dataset updated
    Dec 4, 2023
    Dataset provided by
    EDI
    Authors
    Tim Parshall; David Foster
    License

    https://spdx.org/licenses/CC0-1.0https://spdx.org/licenses/CC0-1.0

    Time period covered
    0001 - 2000
    Area covered
    Variables measured
    age, c.p, site, taxa, count, depth, error, status, cal.ybp, analysis, and 2 more
    Description

    We use a retrospective approach to reconstruct the past distribution of fire in New England and to investigate the important drivers of this pattern across the period of European arrival to North America. Our study sites are in New England, and range from pitch pine and oak forests of coastal Massachusetts, pine and hardwood forests of central Massachusetts, and northern hardwood and spruce fir forests of northern Massachusetts and Vermont. We collected sediment profiles from 18 lakes across the study area to assess fossil charcoal and pollen abundance over the past 1000 years and including the time period of European arrival and settlement. Based on presettlement pollen composition, our study sites are divided into three vegetation types: 1) pitch pine and oak, 2) oak, pine, and hardwood, and 3) northern hardwoods. The abundance of presettlement charcoal in these lakes is closely related to climate and the composition of surrounding vegetation. Charcoal is most abundant in pitch pine forests and least common in northern hardwood and spruce forests. Following the arrival of Europeans, charcoal abundance increases, at most sites substantially, and vegetation composition changed in a direction of either greater dominance by pitch pine or white pine, depending on whether the forests were located in the southern or northern part of New England. The major factor influencing the distribution of fire across New England is climate, which has a direct effect on the physical conditions conducive to fire ignition and spread and an indirect effect on fire through its control on the distribution of vegetation at this spatial scale. We find evidence that other factors exert some control over local fire regimes as well including landforms and their impact on vegetation composition, firebreaks, and prevailing winds. Native Americans likely influenced the local occurrence of fire, but their impact on regional fire regimes in New England is not apparent from this or other studies. However, additional paleoecological, archaeological and historical work needs to be done to better address this question. In contrast, Europeans had a dramatic effect on fire throughout the New England landscape, increasing its occurrence almost everywhere.

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U.S. Geological Survey (2024). Long-term and short-term shoreline change rates for Outer Cape Cod, Massachusetts calculated with and without the proxy-datum bias using the Digital Shoreline Analysis System version 5.0 [Dataset]. https://res1catalogd-o-tdatad-o-tgov.vcapture.xyz/dataset/long-term-and-short-term-shoreline-change-rates-for-outer-cape-cod-massachusetts-calculate

Long-term and short-term shoreline change rates for Outer Cape Cod, Massachusetts calculated with and without the proxy-datum bias using the Digital Shoreline Analysis System version 5.0

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Dataset updated
Jul 6, 2024
Dataset provided by
United States Geological Surveyhttp://www.usgs.gov/
Area covered
Cape Cod, Massachusetts
Description

The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast. The shoreline position and change rate are used to inform management decisions regarding the erosion of coastal resources. In 2001, a shoreline from 1994 was added to calculate both long- and short-term shoreline change rates along ocean-facing sections of the Massachusetts coast. In 2013, two oceanfront shorelines for Massachusetts were added using 2008-9 color aerial orthoimagery and 2007 topographic lidar datasets obtained from the National Oceanic and Atmospheric Administration's Ocean Service, Coastal Services Center. This 2018 data release includes rates that incorporate two new mean high water (MHW) shorelines for the Massachusetts coast extracted from lidar data collected between 2010 and 2014. The first new shoreline for the State includes data from 2010 along the North Shore and South Coast from lidar data collected by the U.S. Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise. Shorelines along the South Shore and Outer Cape are from 2011 lidar data collected by the U.S. Geological Survey's (USGS) National Geospatial Program Office. Shorelines along Nantucket and Martha’s Vineyard are from a 2012 USACE Post Sandy Topographic lidar survey. The second new shoreline for the North Shore, Boston, South Shore, Cape Cod Bay, Outer Cape, South Cape, Nantucket, Martha’s Vineyard, and the South Coast (around Buzzards Bay to the Rhode Island Border) is from 2013-14 lidar data collected by the (USGS) Coastal and Marine Geology Program. This 2018 update of the rate of shoreline change in Massachusetts includes two types of rates. Some of the rates include a proxy-datum bias correction, this is indicated in the filename with “PDB”. The rates that do not account for this correction have “NB” in their file names. The proxy-datum bias is applied because in some areas a proxy shoreline (like a High Water Line shoreline) has a bias when compared to a datum shoreline (like a Mean High Water shoreline). In areas where it exists, this bias should be accounted for when calculating rates using a mix of proxy and datum shorelines. This issue is explained further in Ruggiero and List (2009) and in the process steps of the metadata associated with the rates. This release includes both long-term (~150 years) and short term (~30 years) rates. Files associated with the long-term rates have “LT” in their names, files associated with short-term rates have “ST” in their names.

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