All Layers and Tables (Dukes_County_Structures_Hazard_Impact

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Layer: Structures - Hazard Impacts - HMP2020 (0)

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Using the roofprint data from MassGIS as of June 2020, the MVC converted those roofprints to centroids. Only structures having a roofprint area > 400sq ft were included in the analysis. This was done to eliminate presumed sheds, garages, and small barns, from the analysis. The structure points were analyzed against the natural hazard spatial coverages to identify those structures that are at risk.

Hazard Data Sources:

Wildfire Risk Area -- MVC 2020; Process: Any pitch pine and scrub/shrub oak habitats were extracted from their larger dataset. The other 2 files are extracts from the MassGIS Land Use/Land Cover data of 2016. From that dataset I took Land Cover Class 9 (deciduous) & Class 10 (Evergreen) where General Use was any of the following: 2, 6, 7, 8, 9, OR Detailed Use was 39*, 13*, 44*. Lands fitting that criteria definition were dissolved together but only where contiguous. Then, any areas within that which were 50 acres or more were retained. Lastly, that file was buffered 1000ft.So, any structures within the a) pitch pine/scrub oak habitat; OR b) contiguous woodland; OR c) within 100ft of contiguous woodland àare considered within the ‘Wild & Urban Land Interface’ (or within an area which is at risk of being negatively impacted by wildfire).

Those 4 datalayers were dissolved together into this one file. The individual data layers or a merged/appeded version of the data can be found in the Hazards.gdb within the Data Development folder maintained by the MVC's GIS Coordinator.

Tsunami-- MVC 2020; Area is 1 mile from the MassDEP/MassGIS 1:25,000 hydrology coastline

FEMA Flood -- FEMA Effective 2016

Hurricane- SLOSH model by NOAA/USACE 2013

Sea Level Rise - Flood Risk Model -MassDOT/Woods Hole Group/UMass Boston 2020 -- Flood Risk Model with flooding probability for 'present' timestamp (represents year 2013), and forecasts for 2030, 2050, and 2070. Similar timestamp forecasts for modeled flooding depth during 100year storm event.

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OBJECTID_1 (type: esriFieldTypeOID, alias: OBJECTID_1, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
OBJECTID (type: esriFieldTypeInteger, alias: OBJECTID, SQL Type: sqlTypeOther, nullable: true, editable: true)
STRUCT_ID (type: esriFieldTypeString, alias: STRUCT_ID, SQL Type: sqlTypeOther, length: 20, nullable: true, editable: true)
SOURCEDATE (type: esriFieldTypeInteger, alias: SOURCEDATE, SQL Type: sqlTypeOther, nullable: true, editable: true)
SOURCEDATA (type: esriFieldTypeString, alias: SOURCEDATA, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
AREA_SQ_FT (type: esriFieldTypeDouble, alias: AREA_SQ_FT, SQL Type: sqlTypeOther, nullable: true, editable: true)
TOWN_ID (type: esriFieldTypeInteger, alias: Town, SQL Type: sqlTypeOther, nullable: true, editable: true, Coded Values: [62: Chilmark], [89: Edgartown without Chappy], [890: Edgartown Chappy Only], ... 5 more ...)
ORIG_FID (type: esriFieldTypeInteger, alias: ORIG_FID, SQL Type: sqlTypeOther, nullable: true, editable: true)
MAP_PAR_ID (type: esriFieldTypeString, alias: MAP_PAR_ID, SQL Type: sqlTypeOther, length: 26, nullable: true, editable: true)
LOC_ID (type: esriFieldTypeString, alias: LOC_ID, SQL Type: sqlTypeOther, length: 18, nullable: true, editable: true)
FEMA_FLOOD (type: esriFieldTypeString, alias: FEMA Flood Zone, SQL Type: sqlTypeOther, length: 100, nullable: true, editable: true)
SLOSH (type: esriFieldTypeString, alias: Hurricane Inundation Category, SQL Type: sqlTypeOther, length: 5, nullable: true, editable: true, Coded Values: [0: Not within risk area], [1: Category 1], [2: Category 2], ... 2 more ...)
TSUNAMI (type: esriFieldTypeString, alias: Within Tsunami Risk, SQL Type: sqlTypeOther, length: 5, nullable: true, editable: true, Coded Values: [Y: Yes], [N: No])
D1_2050 (type: esriFieldTypeInteger, alias: Flood Risk Depth 2050, SQL Type: sqlTypeOther, nullable: true, editable: true, Coded Values: [0: Not within predicted flood area], [1: >0ft to 2.5ft], [2: >=2.5ft to <5ft], ... 2 more ...)
D1_2030 (type: esriFieldTypeInteger, alias: Flood Risk Depth 2030, SQL Type: sqlTypeOther, nullable: true, editable: true, Coded Values: [0: Not within predicted flood area], [1: >0ft to 2.5ft], [2: >=2.5ft to <5ft], ... 2 more ...)
D1_Pres (type: esriFieldTypeInteger, alias: Flood Risk Depth 2013, SQL Type: sqlTypeOther, nullable: true, editable: true, Coded Values: [0: Not within predicted flood area], [1: >0ft to 2.5ft], [2: >=2.5ft to <5ft], ... 2 more ...)
D1_2070 (type: esriFieldTypeInteger, alias: Flood Risk Depth 2070, SQL Type: sqlTypeOther, nullable: true, editable: true, Coded Values: [0: Not within predicted flood area], [1: >0ft to 2.5ft], [2: >=2.5ft to <5ft], ... 2 more ...)
Prob_2030 (type: esriFieldTypeInteger, alias: Flood Risk Probability 2030, SQL Type: sqlTypeOther, nullable: true, editable: true, Coded Values: [0: Not within predicted flood area], [1: >0% to <25%], [2: >=25% to <50%], ... 2 more ...)
Prob_Pres (type: esriFieldTypeInteger, alias: Flood Risk Probability 2013, SQL Type: sqlTypeOther, nullable: true, editable: true, Coded Values: [0: Not within predicted flood area], [1: >0% to <25%], [2: >=25% to <50%], ... 2 more ...)
Prob_2070 (type: esriFieldTypeInteger, alias: Flood Risk Probability 2070, SQL Type: sqlTypeOther, nullable: true, editable: true, Coded Values: [0: Not within predicted flood area], [1: >0% to <25%], [2: >=25% to <50%], ... 2 more ...)
Prob_2050 (type: esriFieldTypeInteger, alias: Flood Risk Probability 2050, SQL Type: sqlTypeOther, nullable: true, editable: true, Coded Values: [0: Not within predicted flood area], [1: >0% to <25%], [2: >=25% to <50%], ... 2 more ...)
FEMAflood (type: esriFieldTypeString, alias: FEMAflood, SQL Type: sqlTypeOther, length: 5, nullable: true, editable: true, Coded Values: [VE: VE 100 Year Flood Zone], [AE: AE 100 Year Flood Zone], [0.2%: 500 Year Flood Zone], ... 1 more ...)
FIRE (type: esriFieldTypeString, alias: Within Wildfire Risk, SQL Type: sqlTypeOther, length: 5, nullable: true, editable: true, Coded Values: [Y: Yes], [N: No])

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All Layers and Tables (Dukes_County_Structures_Hazard_Impact_Analysis)

Layers:

Layer: Structures - Hazard Impacts - HMP2020 (0)