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COASTAL BLUFF HAZARDS

SDE Feature Class

Tags
geoscientificInformation, 24000, bluffs, erosion/sedimentation, coastal, Maine, surficial deposits, hazard, slope stability, land surface, coastal processes, geology, landslide, shoreline, landforms, USA, geomorphology


Summary

This data can help identify shorelines with increased risk of coastal erosion or landslides.

Description

COASTAL_BLUFF_HAZARDS contains line data describing the shoreline type and relative stability of bluffs along a section of the Maine coast mapped at a 1:24,000 scale, from the Maine Geological Survey. A bluff is defined as a steep shoreline slope formed in sediment (loose material such as clay, sand, and gravel) that has three feet or more of vertical elevation just above the high tide line. Shoreline segments are classified as either being bluff, non-bluff, or unmapped or undetermined. Bluffs are classified as either (1) ledge (exposed bedrock outcrops); (2) armored (seawall, riprap, gabion, bulkhead, etc.); (3) salt marsh; (4) beach, mud flat, or other loose sediment; or (5), unmapped or undetermined. The relative stability of a buff face is classified as being either (1) not a bluff, (2) stable, (3) unstable, (4) highly unstable, or (5) unmapped or undetermined. This classification is based on observed features that reflect recent activity on the bluff face. The landslide hazard is given by line data describing the internal stability of sediment bluffs along Maine's shoreline. The landslide hazard is classified by one of the following: (1) the bluff is the site of a past historical or photo interpreted landslide; (2) the bluff has an elevated risk of a landslide based on field observation; (3) the bluff has an elevated risk of a landslide based on aerial photo interpretation, but needs field assessment; (4) there is no landslide potential; or (5) the landslide potential is unmapped or undetermined.

Credits

Credit should be given to the data source and/or originator when data is transferred or printed. Source should be cited as: Maine Department of Conservation, Maine Geological Survey, 22 State House Station, Augusta, ME 04333-0022.

Use limitations

Users must assume responsibility in determining the usability of this data for their purposes. User must include full citation (author, pubdate, title, and source fields in associated attribute table) for the coastal bluffs data when using the data in printed or digital form.

Extent

West  -70.889381    East  -67.617967
North  44.808252    South  43.056075

Scale Range
Maximum (zoomed in)  1:24,000
Minimum (zoomed out)  1:24,000

ArcGIS Metadata 

Topics and Keywords 

Themes or categories of the resource  geoscientificInformation


*Content type  Downloadable Data
Export to FGDC CSDGM XML format as Resource Description No

Place keywords  Maine, USA

Thesaurus
Title Maine GIS Thesaurus - Place





Thesaurus
Title GCMD Keyword




Stratum keywords  land surface

Thesaurus
Title GCMD Keyword Thesaurus




Theme keywords  24000, bluffs, erosion/sedimentation, coastal, surficial deposits, hazard, slope stability, coastal processes, geology, landslide, shoreline, landforms, geomorphology

Thesaurus
Title Maine GIS Thesaurus - Theme




Theme keywords  geoscientificInformation

Thesaurus
Title ISO Keywords Thesaurus




Citation 

*Title GISVIEW.MEMGS.COASTAL_BLUFF_HAZARDS


Presentation formats  digital map
FGDC geospatial presentation format  vector digital data


Series
Name Coastal bluff maps and Coastal landslide hazard maps
Issue Printed map citation for individual quadrangles listed in the author, pubdate, title, and source fields in associated attribute table.

Other citation details Full citation for coastal bluffs hazard data includes the author, date, title, and source fields in the associated attribute table.


Citation Contacts 

Responsible party
Organization's name Maine Department of Conservation, Maine Geological Survey
Contact's position Director, Earth Resource Information
Contact's role  point of contact


Contact information
Phone
Voice 207-287-3200

Address
Type postal
Delivery point SHS 22
City Augusta
Administrative area Maine
Postal code 04333
Country US
e-mail addressdacf@maine.gov



Resource Details 

Dataset languages  English (UNITED STATES)


Status  completed
Spatial representation type  vector


*Processing environment Microsoft Windows Server 2003 Version 5.2 (Build 3790) Service Pack 2; Esri ArcGIS 10.1.1.3143


Credits
Credit should be given to the data source and/or originator when data is transferred or printed. Source should be cited as: Maine Department of Conservation, Maine Geological Survey, 22 State House Station, Augusta, ME 04333-0022.
ArcGIS item properties
*Name GISVIEW.MEMGS.COASTAL_BLUFF_HAZARDS
*Location Server=sql-gisview-prod.som.w2k.state.me.us; Service=sde:sqlserver:sql-gisview-prod.som.w2k.state.me.us,1633; Database=GISVIEW; User=MEMGS; Version=dbo.DEFAULT
*Access protocol ArcSDE Connection

Extents 

Extent
Geographic extent
Bounding rectangle
West longitude -70.889381
East longitude -67.617967
South latitude 43.056075
North latitude 44.808252

Extent
Description
publication date
Temporal extent
Beginning date 2002-01-01
Ending date 2009-01-01

Extent
Geographic extent
Bounding rectangle
Extent type  Extent used for searching
*West longitude -70.889381
*East longitude -67.617967
*North latitude 44.808252
*South latitude 43.056075
*Extent contains the resource Yes

Extent in the item's coordinate system
*West longitude 350551.481244
*East longitude 609303.944845
*South latitude 4768676.131845
*North latitude 4961650.030265
*Extent contains the resource Yes

Resource Points of Contact 

Point of contact
Organization's name Maine Department of Conservation (MEDOC), Maine Geological Survey (MGS)
Contact's role  point of contact


Contact information
Phone
Voice 207-287-2801

Address
Type postal
Delivery point 2 State House Station
City Augusta
Administrative area ME
Postal code 04333-0022
Country US



Resource Maintenance 

Resource maintenance
Update frequency  irregular


Resource Constraints 

Legal constraints
Other constraints
Secondary distribution by permission only.
Constraints
Limitations of use
Users must assume responsibility in determining the usability of this data for their purposes. User must include full citation (author, pubdate, title, and source fields in associated attribute table) for the coastal bluffs data when using the data in printed or digital form.

Spatial Reference 

ArcGIS coordinate system
*Type Projected
*Geographic coordinate reference GCS_North_American_1983
*Projection NAD_1983_UTM_Zone_19N
*Coordinate reference details
Projected coordinate system
Well-known identifier 26919
X origin -5120899.9998196997
Y origin -9998099.9996675402
XY scale 7812.4999927240406
Z origin 0
Z scale 1
M origin 0
M scale 1
XY tolerance 0.00102400000095367
Z tolerance 1.9999999999999998e-005
M tolerance 1.9999999999999998e-005
High precision true
Latest well-known identifier 26919
Well-known text PROJCS["NAD_1983_UTM_Zone_19N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-69.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26919]]

Reference system identifier
*Value 26919
*Codespace EPSG
*Version 7.11.2


Spatial Data Properties 

Vector
*Level of topology for this dataset  geometry only


Geometric objects
Feature class name GISVIEW.MEMGS.COASTAL_BLUFF_HAZARDS
*Object type  composite
*Object count 25163



ArcGIS Feature Class Properties
Feature class name GISVIEW.MEMGS.COASTAL_BLUFF_HAZARDS
*Feature type Simple
*Geometry type Polyline
*Has topology FALSE
*Feature count 25163
*Spatial index TRUE
*Linear referencing FALSE



Data Quality 

Scope of quality information
Resource level  dataset




Data quality report - Topological consistency
Evaluation method The coast as depicted on the U.S. Geological Survey 7.5-minute (1:24,000) topographic quadrangles was used as the base for mapping different shoreline types, shoreline stability, and landslide hazard potential. Segments of the coast were coded as to shoreline type and stability and evidence of previous landslides on paper copies of quadrangle maps, and the data transferred to a digital coverage of the coastline, splitting and coding arc segments as needed. Some sections of shoreline mapped as stable may contain small areas that are unstable but are not able to be shown in this data set.




Data quality report - Conceptual consistency
Measure description The coast as depicted on the U.S. Geological Survey 7.5-minute (1:24,000) topographic quadrangles was used as the base for mapping different shoreline types, shoreline stability, and landslide hazard potential. Segments of the coast were coded as to shoreline type and stability and evidence of previous landslides on paper copies of quadrangle maps, and the data transferred to a digital coverage of the coastline, splitting and coding arc segments as needed. Some sections of shoreline mapped as stable may contain small areas that are unstable but are not able to be shown in this data set.




Data quality report - Quantitative attribute accuracy
Measure description Attribution of the data set was checked for data entry errors through a series of reviews that checked for inconsistencies with interpretation results. The coverage has been checked for label errors and attribution is complete.




Data quality report - Absolute external positional accuracy
Dimension horizontal


Measure description The data were compiled on a 1:24,000 scale base with a horizontal accuracy +/- 40 feet or 12 meters.




Lineage 

Process step
Description Geologists classified the coastal bluffs in this data set by observing the shoreline from small boats. Segments of the coast were coded as to shoreline type and stability on paper copies of quadrangle maps, and the data transferred to a digital coverage of the coastline, splitting and coding arc segments as needed. The geologists then assigned one of the following categories to the type of shoreline seen below the high tide line: (1) ledge (exposed bedrock outcrops); (2) armored (seawall, riprap, gabion, bulkhead, etc.); (3) salt marsh; or (4) beach, mud flat, or other loose sediment. The data set includes the shoreline type, including segments of the shoreline without significant coastal bluffs. Where significant bluffs were present, geologists noted various characteristics of the bluff face such as the slope of the bluff (steep to gentle), features on the bluff face indicating recent movement of material down the slope (slumped blocks of sediment, landslide scars, fallen trees), and the amount and type of vegetation (bare sediment, grass, shrubs, mature trees). From this information, geologists assessed the relative stability of each bluff face as being (1) stable, (2) unstable, or (3) highly unstable. This classification is based on observed features that reflect recent activity on the bluff face. Landslide sites (LANDSLIDE = 'R', HAZARD = 'RPH') identified by the following: (1) Locations based on historical records and eyewitness accounts. In general, these earth movements have occurred in the last three centuries. (2) Locations based on interpretation of aerial photography. Landslide risk areas (LANDSLIDE = 'Y', HAZARD = 'RF') identified by the following: (1) Observations from land corroborated with geomorphology observed on air photos, sediment types shown on surficial geologic maps, and both elevation above sea level and steepness of bluff slopes shown on topographic maps. Bluff sediments are usually muddy and twenty feet or more in thickness. The slope on the bluff face appears steep and similar to areas where there have been landslides in the past. (2) Observations from a small boat. Primarily steeply-sloping sediment bluffs that were visually estimated to be twenty feet or more in elevation. Other instability characteristics included unvegetated slopes on the bluff face; leaning, fallen, or crooked tree trunks; and visible slump deposits at the base of the bluff near the high-tide line. The site may be adjacent to previous landslides. In this second category, aerial photographs were not used nor were the surficial geologic materials investigated. Potential landslide area (LANDSLIDE = 'R' HAZARD = 'RA') was based on the presence of a bluff as indicated on MGS coastal bluff maps (coastal bluffs data set), the proximity of a twenty-foot topographic contour to the shoreline (similar to areas adjacent to previous landslides) and geomorphology visible in air photos. These bluff areas have not had field investigations to fully evaluate landslide risk.


Process contact
Organization's name Maine Department of Conservation (MEDOC), Maine Geological Survey (MGS)
Contact's role  processor


Contact information
Phone
Voice 207-287-2801

Address
Type postal
Delivery point 22 State House Station
City Augusta
Administrative area ME
Postal code 04333-0022
Country US





Process step
When the process occurred 2006-07-10
Description Replaced arcs for the following Maine Geological Survey publications: 05-19 Coastal bluffs in the Bass Harbor quadrangle, Maine (superseded publication 03-10) 05-21 Coastal bluffs in the Seal Harbor quadrangle, Maine (superseded publication 03-6) 05-22 Coastal bluffs in the Southwest Harbor quadrangle, Maine (superseded publication 03-26) 05-41 Coastal bluffs in the Hancock quadrangle, Maine (superseded publication 03-12) 05-42 Coastal bluffs in the Sullivan quadrangle, Maine (superseded publication 02-216) 06-63 Coastal bluffs in the Harrington quadrangle, Maine (superseded publication 04-22) 06-66 Coastal bluffs in the Winter Harbor quadrangle, Maine (superseded publication 04-26) 06-70 Coastal bluffs in the Bar Harbor quadrangle, Maine (superseded publication 02-170) and 05-24 Coastal landslide hazards in the Hancock quadrangle, Maine (superseded publication 03-13) 05-32 Coastal landslide hazards in the Bass Harbor quadrangle, Maine (superseded publication 03-11) 05-34 Coastal landslide hazards in the Seal Harbor quadrangle, Maine (superseded publication 03-7) 05-35 Coastal landslide hazards in the Southwest Harbor quadrangle, Maine (superseded publication 03-25) 05-37 Coastal landslide hazards in the Sullivan quadrangle, Maine (superseded publication 01-545) 06-67 Coastal landslide hazards in the Winter Harbor quadrangle, Maine (superseded publication 04-27) 06-71 Coastal landslide hazards in the Bar Harbor quadrangle, Maine (superseded publication 01-499) Added arcs for the following Maine Geological Survey publications: 05-47 Coastal bluffs in the Baker Island quadrangle, Maine 06-55 Coastal bluffs in the Wells quadrangle, Maine 06-57 Coastal bluffs in the Kennebunkport quadrangle, Maine 06-59 Coastal bluffs in the York Beach quadrangle, Maine 06-61 Coastal bluffs in the Addison quadrangle, Maine 06-64 Coastal bluffs in the Drisko Island quadrangle, Maine 06-68 Coastal bluffs in the Schoodic Head quadrangle, Maine and 05-31 Coastal landslide hazards in the Baker Island quadrangle, Maine 06-56 Coastal landslide hazards in the Wells quadrangle, Maine 06-58 Coastal landslide hazards in the Kennebunkport quadrangle, Maine 06-60 Coastal landslide hazards in the York Beach quadrangle, Maine 06-62 Coastal landslide hazards in the Addison quadrangle, Maine 06-65 Coastal landslide hazards in the Drisko Island quadrangle, Maine 06-69 Coastal landslide hazards in the Schoodic Head quadrangle, Maine


Process contact
Organization's name Maine Department of Conservation (MEDOC), Maine Geological Survey (MGS)
Contact's role  processor


Contact information
Phone
Voice 207-287-2801

Address
Type postal
Delivery point 22 State House Station
City Augusta
Administrative area ME
Postal code 04333-0022
Country US





Process step
When the process occurred 2009-02-13
Description Updated/replaced bluff/landslide arcs for the following MGS publications: 08-63, Coastal bluffs in the Pemaquid Point quadrangle, Maine (supersedes 02-202). 08-40, Coastal landslide hazards in the Pemaquid Point quadrangle, Maine (supersedes 01-531).


Process contact
Organization's name Maine Department of Conservation (MEDOC), Maine Geological Survey (MGS)
Contact's role  processor


Contact information
Phone
Voice 207-287-2801





Source data
Description Data, from the Maine Office of Geographic Information Systems (MEGIS) 1:24000 library layer COAST represents the Mean High Water (MHW) line, tidal rivers and salt water ponds of coastal Maine.


Source medium name  online link
Resolution of the source data
Scale denominator 24000

Source citation
Title coast
Alternate titles  coast
Publication date 1995-01-01
Indeterminate time unknown


Presentation formats  digital map
FGDC geospatial presentation format  vector digital data


Series
Name Maine GIS Data Catalog; Maine GIS SDE Server

Other citation details 1:24000


Responsible party
Organization's name U.S. Geological Survey (USGS), Maine Office of Geographic Information Systems (MEGIS) (comp., ed.)
Contact's role  originator


Responsible party
Organization's name Maine Office of Geographic Information Systems (MEGIS)
Contact's role  publisher


Contact information
Address
Delivery point Augusta ME





Extent of the source data
Description
source dates
Temporal extent
Beginning date 1948-01-01
Indeterminate time unknown
Ending date 1999-01-01
Indeterminate time unknown



Source data
Description USGS 1:24,000 7.5' quadrangles used as mapping base


Source medium name  hardcopy—printing on paper
Resolution of the source data
Scale denominator 24000

Source citation
Title (24k) USGS 1:24,000 scale quadrangles


Presentation formats  hardcopy map
FGDC geospatial presentation format  map


Series
Name National Mapping Program Standard Series Topographic Maps
Issue USGS 7.5 Minute Map Series

Other citation details 24000 Publication date is unique to each quadrangle in the map series. Standard 7.5x7.5 minute quadrangles cover geographic areas of 49 to 71 square miles. 1 inch at map scale represents 2000 feet.


Responsible party
Organization's name U.S. Geological Survey (USGS)
Contact's role  originator


Responsible party
Organization's name U.S. Geological Survey
Contact's role  publisher


Contact information
Address
Delivery point Reston VA



Resource location online
Locationhttp://mapping.usgs.gov/mac/maplists/howtoselectmaps.html



Extent of the source data
Description
publication date
Temporal extent
Beginning date
Indeterminate date 1/1/1948
Ending date
Indeterminate date unknown



Geoprocessing history 

Process
Process name
Date 2011-05-11 07:40:04
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\UnregisterAsVersioned
Command issued
UnregisterAsVersioned "Database Connections\moeprodr2.memgs.sde\MEMGS.COASTAL_BLUFF_HAZARDS" KEEP_EDIT NO_COMPRESS_DEFAULT "Database Connections\moeprodr2.memgs.sde\MEMGS.COASTAL_BLUFF_HAZARDS"
Include in lineage when exporting metadata No


Distribution 

Distribution format
*Name SDE Feature Class


Transfer options
Online source
Location \\oit-teaqfsemc01.som.w2k.state.me.us\dcn-bogana\s_drive\nrimc_to_sde\maine_geological_survey_geodatabase.mdb

Fields 

Details for object GISVIEW.MEMGS.COASTAL_BLUFF_HAZARDS 
*Type Feature Class
*Row count 25163
Definition
arc feature class
Definition source
ESRI


Field OBJECTID
 
*Alias OBJECTID
*Data type OID
*Width 4
*Precision 10
*Scale 0
Field description
Internal feature number.
Description source
ESRI
Description of values Sequential unique whole numbers that are automatically generated.




Field Shape
 
*Alias Shape
*Data type Geometry
*Width 4
*Precision 0
*Scale 0
Field description
Feature geometry.
Description source
ESRI
Description of values Coordinates defining the features.




Field BLUFF
 
*Alias BLUFF
*Data type String
*Width 5
*Precision 0
*Scale 0
Field description
Is the shoreline a bluff?
Description source
MGS
List of values
Value X
Description not mapped or undetermined


Value Y
Description bluff


Value N
Description not a bluff




Field TYPE
 
*Alias TYPE
*Data type String
*Width 5
*Precision 0
*Scale 0
Field description
shoreline type corresponding to mapped units on the published coastal bluff maps
Description source
MGS
List of values
Value X
Description not mapped or undetermined


Value N
Description beach, mud flat, or other loose sediment


Value L
Description ledge (greater than 50-percent exposed bedrock outcrops)


Value A
Description armored (seawall, riprap, gabion, bulkhead, etc.)


Value V
Description vegetated; salt marsh




Field STABILITY
 
*Alias STABILITY
*Data type String
*Width 5
*Precision 0
*Scale 0
Field description
relative bluff stability type corresponding to mapped units on the published coastal bluff maps
Description source
MGS
List of values
Value X
Description not mapped or undetermined


Value N
Description not a bluff


Value S
Description stable


Value U
Description unstable


Value H
Description highly unstable




Field LANDSLIDE
 
*Alias LANDSLIDE
*Data type String
*Width 5
*Precision 0
*Scale 0
Field description
landslide code
Description source
MGS
List of values
Value X
Description not mapped or undetermined


Value N
Description no landslide potential


Value Y
Description landslide potential determined from bluff type and elevation


Value R
Description site of a former landslide; see the value of newrefid for basis of identification of the coastal segment as a landslide site




Field HAZARD
 
*Alias HAZARD
*Data type String
*Width 5
*Precision 0
*Scale 0
Field description
landslide hazard corresponding to mapped units on the published coastal landslide map
Description source
MGS
List of values
Value X
Description not mapped or undetermined


Value NB
Description no landslide hazard - not a bluff


Value BN
Description no landslide hazard - bluff but no landslide potential


Value RPH
Description site of former landslide based on aerial photo interpretation or historical account


Value RF
Description landslide hazard - based on field observation


Value RA
Description potential landslide hazard based on aerial photo interpretation - needs further assessment




Field COMMENT_
 
*Alias COMMENT_
*Data type String
*Width 60
*Precision 0
*Scale 0




Field NEWREFID
 
*Alias NEWREFID
*Data type Integer
*Width 4
*Precision 10
*Scale 0
Field description
basis of identifying the coastal segment as a landslide site
Description source
MGS
List of values
Value 1-1999
Description landslide determined from air photo (Novak 1990)




Field GEOCODE
 
*Alias GEOCODE
*Data type Integer
*Width 4
*Precision 10
*Scale 0
Field description
minor civil division (MCD) code of the town containing the shoreline segment
Description source
MGS


Field NAME
 
*Alias NAME
*Data type String
*Width 48
*Precision 0
*Scale 0
Field description
name of the town containing the shoreline segment
Description source
MGS


Field TILE
 
*Alias TILE
*Data type String
*Width 24
*Precision 0
*Scale 0
Field description
Maine Geological Survey GIS tile (derived from USGS 7.5-minute quadrangle name)
Description source
MGS


Field B_PUBCODE
 
*Alias B_PUBCODE
*Data type String
*Width 12
*Precision 0
*Scale 0
Field description
Maine Geological Survey publication code/ordering number for the published coastal bluff open-file map
Description source
MGS


Field B_AUTHOR
 
*Alias B_AUTHOR
*Data type String
*Width 254
*Precision 0
*Scale 0
Field description
author(s) of the published coastal bluff open-file map
Description source
MGS


Field B_PUBDATE
 
*Alias B_PUBDATE
*Data type SmallInteger
*Width 2
*Precision 5
*Scale 0
Field description
publication date of the published coastal bluff open-file map
Description source
MGS


Field B_TITLE
 
*Alias B_TITLE
*Data type String
*Width 254
*Precision 0
*Scale 0
Field description
title of the published coastal bluff open-file map
Description source
MGS


Field B_SOURCE
 
*Alias B_SOURCE
*Data type String
*Width 254
*Precision 0
*Scale 0
Field description
source for the published coastal bluff open-file map
Description source
MGS


Field L_PUBCODE
 
*Alias L_PUBCODE
*Data type String
*Width 12
*Precision 0
*Scale 0
Field description
Maine Geological Survey publication code/ordering number for the published coastal landslide hazard open-file map
Description source
MGS


Field L_AUTHOR
 
*Alias L_AUTHOR
*Data type String
*Width 254
*Precision 0
*Scale 0
Field description
author(s) of the published coastal landslide hazard open-file map
Description source
MGS


Field L_PUBDATE
 
*Alias L_PUBDATE
*Data type SmallInteger
*Width 2
*Precision 5
*Scale 0
Field description
publication date of the published coastal landslide hazard open-file map
Description source
MGS


Field L_TITLE
 
*Alias L_TITLE
*Data type String
*Width 254
*Precision 0
*Scale 0
Field description
title of the published coastal landslide hazard open-file map
Description source
MGS


Field GlobalID
 
*Alias GlobalID
*Data type GlobalID
*Width 38
*Precision 0
*Scale 0




Field L_SOURCE
 
*Alias L_SOURCE
*Data type String
*Width 254
*Precision 0
*Scale 0
Field description
source for the published coastal landslide hazard open-file map
Description source
MGS


Field SHAPE.len
 
*Alias SHAPE.len
*Data type Double
*Width 0
*Precision 0
*Scale 0






Overview Description
Entity and Attribute Overview Attribute table for coastal arcs.




Metadata Details 

Metadata language English (UNITED STATES)
Metadata character set  utf8 - 8 bit UCS Transfer Format


Scope of the data described by the metadata  dataset
Scope name* dataset


*Last update 2013-11-26


ArcGIS metadata properties
Metadata format ArcGIS 1.0
Standard or profile used to edit metadata FGDC


Created in ArcGIS for the item 2011-06-07 11:49:50
Last modified in ArcGIS for the item 2013-11-26 15:26:29


Automatic updates
Have been performed Yes
Last update 2013-11-26 15:24:08


Metadata Contacts 

Metadata contact
Individual's name Director, Earth Resource Information
Organization's name Maine Department of Conservation (MEDOC), Maine Geological Survey (MGS)
Contact's role  point of contact


Contact information
Phone
Voice 207-287-2801

Address
Type postal
Delivery point 22 State House Station
City Augusta
Administrative area ME
Postal code 04333-0022
Country US



Thumbnail and Enclosures 

Thumbnail

Enclosure
Enclosure type  File
Description of enclosure original metadata
Original metadata document, which was translated yes
Source metadata format fgdc

FGDC Metadata (read-only) 

Identification 

Citation
Citation Information
OriginatorMaine Department of Conservation (MEDOC), Maine Geological Survey (MGS)
Publication Date2/13/09
Title
GISVIEW.MEMGS.COASTAL_BLUFF_HAZARDS
Geospatial Data Presentation Formvector digital data
Series Information
Series NameCoastal bluff maps and Coastal landslide hazard maps
Issue IdentificationPrinted map citation for individual quadrangles listed in the author, pubdate, title, and source fields in associated attribute table.
Publication Information
Publication PlaceAugusta, Maine
PublisherMaine Department of Conservation, Maine Geological Survey and Maine Office of Geographic Information Systems
Other Citation Details
Full citation for coastal bluffs hazard data includes the author, date, title, and source fields in the associated attribute table.
Online Linkage\\oit-teaqfsemc01.som.w2k.state.me.us\dcn-bogana\s_drive\nrimc_to_sde\maine_geological_survey_geodatabase.mdb

Description
Abstract
                            COASTAL_BLUFF_HAZARDS contains line data describing the shoreline type and relative stability of bluffs along a section of the Maine coast mapped at a 1:24,000 scale, from the Maine Geological Survey. A bluff is defined as a steep shoreline slope formed in sediment (loose material such as clay, sand, and gravel) that has three feet or more of vertical elevation just above the high tide line. Shoreline segments are classified as either being bluff, non-bluff, or unmapped or undetermined. Bluffs are classified as either (1) ledge (exposed bedrock outcrops); (2) armored (seawall, riprap, gabion, bulkhead, etc.); (3) salt marsh; (4) beach, mud flat, or other loose sediment; or (5), unmapped or undetermined. The relative stability of a buff face is classified as being either (1) not a bluff, (2) stable, (3) unstable, (4) highly unstable, or (5) unmapped or undetermined. This classification is based on observed features that reflect recent activity on the bluff face. The landslide hazard is given by line data describing the internal stability of sediment bluffs along Maine's shoreline. The landslide hazard is classified by one of the following: (1) the bluff is the site of a past historical or photo interpreted landslide; (2) the bluff has an elevated risk of a landslide based on field observation; (3) the bluff has an elevated risk of a landslide based on aerial photo interpretation, but needs field assessment; (4) there is no landslide potential; or (5) the landslide potential is unmapped or undetermined.
                          
Purpose
                            This data can help identify shorelines with increased risk of coastal erosion or landslides.
                          
Time Period of Content
Time Period Information
Range of Dates/Times
Beginning Date2002
Ending Date2009
Currentness Reference
                            publication date
                          
Status
ProgressComplete
Maintenance and Update FrequencyIrregular

Spatial Domain
Bounding Coordinates
West Bounding Coordinate -70.889381
East Bounding Coordinate -67.617967
North Bounding Coordinate 44.808252
South Bounding Coordinate 43.056075

Keywords
Theme
Theme Keyword ThesaurusISO Keywords Thesaurus
Theme KeywordgeoscientificInformation

Theme
Theme Keyword24000
Theme Keywordbluffs
Theme Keyworderosion/sedimentation
Theme Keywordcoastal
Theme Keywordsurficial deposits
Theme Keywordhazard
Theme Keywordslope stability
Theme Keywordcoastal processes
Theme Keywordgeology
Theme Keywordlandslide
Theme Keywordshoreline
Theme Keywordlandforms
Theme Keywordgeomorphology
Theme KeywordgeoscientificInformation

Place
Place Keyword ThesaurusMaine GIS Thesaurus - Place
Place KeywordMaine
Place KeywordUSA

Stratum
Stratum Keyword ThesaurusGCMD Keyword

Stratum
Stratum Keyword ThesaurusGCMD Keyword Thesaurus
Stratum Keywordland surface

Access Constraints
                        Secondary distribution by permission only.
                      
Use Constraints
                        Users must assume responsibility in determining the usability of this data for their purposes.  User must include full citation (author, pubdate, title, and source fields in associated attribute table) for the coastal bluffs data when using the data in printed or digital form.
                      
Point of Contact
Contact Information
Contact Organization Primary
Contact OrganizationMaine Department of Conservation (MEDOC), Maine Geological Survey (MGS)
Contact Address
Address Typemailing address
Address2 State House Station
CityAugusta
State or ProvinceME
Postal Code04333-0022
CountryUNITED STATES

Contact Voice Telephone207-287-2801

Data Set Credit
                        Credit should be given to the data source and/or originator when data is transferred or printed. Source should be cited as: Maine Department of Conservation, Maine Geological Survey, 22 State House Station, Augusta, ME 04333-0022.
                      
Native Data Set Environment
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.3.0.1770

Data Quality 

Attribute Accuracy
Attribute Accuracy Report
                            Attribution of the data set was checked for data entry errors through a series of reviews that checked for inconsistencies with interpretation results.  The coverage has been checked for label errors and attribution is complete.
                          
Logical Consistency Report
                        The coast as depicted on the U.S. Geological Survey 7.5-minute (1:24,000) topographic quadrangles was used as the base for mapping different shoreline types, shoreline stability, and landslide hazard potential.  Segments of the coast were coded as to shoreline type and stability and evidence of previous landslides on paper copies of quadrangle maps, and the data transferred to a digital coverage of the coastline, splitting and coding arc segments as needed.  Some sections of shoreline mapped as stable may contain small areas that are unstable but are not able to be shown in this data set.
                      
Positional Accuracy
Horizontal Positional Accuracy
Horizontal Positional Accuracy Report
                                The data were compiled on a 1:24,000 scale base with a horizontal accuracy +/- 40 feet or 12 meters.
                              
Lineage
Source Information
Source Citation
Citation Information
OriginatorU.S. Geological Survey (USGS)
Publication Datemultiple dates
Title
(24k) USGS 1:24,000 scale quadrangles
Geospatial Data Presentation Formmap
Series Information
Series NameNational Mapping Program Standard Series Topographic Maps
Issue IdentificationUSGS 7.5 Minute Map Series
Publication Information
Publication PlaceReston VA
PublisherU.S. Geological Survey
Other Citation Details
24000 Publication date is unique to each quadrangle in the map series. Standard 7.5x7.5 minute quadrangles cover geographic areas of 49 to 71 square miles. 1 inch at map scale represents 2000 feet.
Online Linkagehttp://mapping.usgs.gov/mac/maplists/howtoselectmaps.html

Source Scale Denominator24000
Type of Source Mediapaper
Source Time Period of Content
Time Period Information
Range of Dates/Times
Beginning Date1/1/1948
Ending Dateunknown
Source Currentness Reference
publication date
Source Contribution
                                USGS 1:24,000 7.5' quadrangles used as mapping base
                              
Source Information
Source Citation
Citation Information
OriginatorU.S. Geological Survey (USGS), Maine Office of Geographic Information Systems (MEGIS) (comp., ed.)
Publication Date1995
Publication TimeUnknown
Title
coast
Geospatial Data Presentation Formvector digital data
Series Information
Series NameMaine GIS Data Catalog; Maine GIS SDE Server
Publication Information
Publication PlaceAugusta ME
PublisherMaine Office of Geographic Information Systems (MEGIS)
Other Citation Details
1:24000

Source Scale Denominator24000
Type of Source Mediaonline
Source Time Period of Content
Time Period Information
Range of Dates/Times
Beginning Date1948
Beginning Timeunknown
Ending Date1999
Ending Timeunknown
Source Currentness Reference
source dates
Source Citation Abbreviation
coast
Source Contribution
                                Data, from the Maine Office of Geographic Information Systems (MEGIS) 1:24000 library layer COAST represents the Mean High Water (MHW) line, tidal rivers and salt water ponds of coastal Maine.
                              
Process Step
Process Description
                                Geologists classified the coastal bluffs in this data set by observing the shoreline from small boats.  Segments of the coast were coded as to shoreline type and stability on paper copies of quadrangle maps, and the data transferred to a digital coverage of the coastline, splitting and coding arc segments as needed.

The geologists then assigned one of the following categories to the type of shoreline seen below the high tide line: (1) ledge (exposed bedrock outcrops); (2) armored (seawall, riprap, gabion, bulkhead, etc.); (3) salt marsh; or (4) beach, mud flat, or other loose sediment.  The data set includes the shoreline type, including segments of the shoreline without significant coastal bluffs.  Where significant bluffs were present, geologists noted various characteristics of the bluff face such as the slope of the bluff (steep to gentle), features on the bluff face indicating recent movement of material down the slope (slumped blocks of sediment, landslide scars, fallen trees), and the amount and type of vegetation (bare sediment, grass, shrubs, mature trees).  From this information, geologists assessed the relative stability of each bluff face as being  (1) stable, (2) unstable, or (3) highly unstable.  This classification is based on observed features that reflect recent activity on the bluff face.

Landslide sites (LANDSLIDE = 'R', HAZARD = 'RPH')  identified by the following:  (1) Locations based on historical records and eyewitness accounts.  In general, these earth movements have occurred in the last three centuries.  (2) Locations based on interpretation of aerial photography.

Landslide risk areas (LANDSLIDE = 'Y', HAZARD = 'RF') identified by the following:  (1) Observations from land corroborated with geomorphology observed on air photos, sediment types shown on surficial geologic maps, and both elevation above sea level and steepness of bluff slopes shown on topographic maps.  Bluff sediments are usually muddy and twenty feet or more in thickness.  The slope on the bluff face appears steep and similar to areas where there have been landslides in the past.  (2) Observations from a small boat.  Primarily steeply-sloping sediment bluffs that were visually estimated to be twenty feet or more in elevation.  Other instability characteristics included unvegetated slopes on the bluff face; leaning, fallen, or crooked tree trunks; and visible slump deposits at the base of the bluff near the high-tide line.  The site may be adjacent to previous landslides.  In this second category, aerial photographs were not used nor were the surficial geologic materials investigated.

Potential landslide area (LANDSLIDE = 'R' HAZARD = 'RA') was based on the presence of a bluff as indicated on MGS coastal bluff maps (coastal bluffs data set), the proximity of a twenty-foot topographic contour to the shoreline (similar to areas adjacent to previous landslides) and geomorphology visible in air photos.  These bluff areas have not had field investigations to fully evaluate landslide risk.
                              
Process Datepublication date of published map


Process Contact
Contact Information
Contact Organization Primary
Contact OrganizationMaine Department of Conservation (MEDOC), Maine Geological Survey (MGS)
Contact Address
Address Typemailing address
Address22 State House Station
CityAugusta
State or ProvinceME
Postal Code04333-0022
CountryUNITED STATES

Contact Voice Telephone207-287-2801

Process Step
Process Description
                                Replaced arcs for the following Maine Geological Survey publications:
05-19 Coastal bluffs in the Bass Harbor quadrangle, Maine (superseded publication 03-10)
05-21 Coastal bluffs in the Seal Harbor quadrangle, Maine (superseded publication 03-6)
05-22 Coastal bluffs in the Southwest Harbor quadrangle, Maine (superseded publication 03-26)
05-41 Coastal bluffs in the Hancock quadrangle, Maine (superseded publication 03-12)
05-42 Coastal bluffs in the Sullivan quadrangle, Maine (superseded publication 02-216)
06-63 Coastal bluffs in the Harrington quadrangle, Maine (superseded publication 04-22)
06-66 Coastal bluffs in the Winter Harbor quadrangle, Maine (superseded publication 04-26)
06-70 Coastal bluffs in the Bar Harbor quadrangle, Maine (superseded publication 02-170)
and
05-24 Coastal landslide hazards in the Hancock quadrangle, Maine (superseded publication 03-13)
05-32 Coastal landslide hazards in the Bass Harbor quadrangle, Maine (superseded publication 03-11)
05-34 Coastal landslide hazards in the Seal Harbor quadrangle, Maine (superseded publication 03-7)
05-35 Coastal landslide hazards in the Southwest Harbor quadrangle, Maine (superseded publication 03-25)
05-37 Coastal landslide hazards in the Sullivan quadrangle, Maine (superseded publication 01-545)
06-67 Coastal landslide hazards in the Winter Harbor quadrangle, Maine (superseded publication 04-27)
06-71 Coastal landslide hazards in the Bar Harbor quadrangle, Maine (superseded publication 01-499)
 
Added arcs for the following Maine Geological Survey publications:
05-47 Coastal bluffs in the Baker Island quadrangle, Maine
06-55 Coastal bluffs in the Wells quadrangle, Maine
06-57 Coastal bluffs in the Kennebunkport quadrangle, Maine
06-59 Coastal bluffs in the York Beach quadrangle, Maine
06-61 Coastal bluffs in the Addison quadrangle, Maine
06-64 Coastal bluffs in the Drisko Island quadrangle, Maine
06-68 Coastal bluffs in the Schoodic Head quadrangle, Maine
and
05-31 Coastal landslide hazards in the Baker Island quadrangle, Maine
06-56 Coastal landslide hazards in the Wells quadrangle, Maine
06-58 Coastal landslide hazards in the Kennebunkport quadrangle, Maine
06-60 Coastal landslide hazards in the York Beach quadrangle, Maine
06-62 Coastal landslide hazards in the Addison quadrangle, Maine
06-65 Coastal landslide hazards in the Drisko Island quadrangle, Maine
06-69 Coastal landslide hazards in the Schoodic Head quadrangle, Maine
                              
Process Date2006-07-10


Process Contact
Contact Information
Contact Organization Primary
Contact OrganizationMaine Department of Conservation (MEDOC), Maine Geological Survey (MGS)
Contact Address
Address Typemailing address
Address22 State House Station
CityAugusta
State or ProvinceME
Postal Code04333-0022
CountryUNITED STATES

Contact Voice Telephone207-287-2801

Process Step
Process Description
                                Updated/replaced bluff/landslide arcs for the following MGS publications:
08-63, Coastal bluffs in the Pemaquid Point quadrangle, Maine (supersedes 02-202).
08-40, Coastal landslide hazards in the Pemaquid Point quadrangle, Maine (supersedes 01-531).
                              
Process Date2009-02-13


Process Contact
Contact Information
Contact Person Primary
Contact OrganizationMaine Department of Conservation (MEDOC), Maine Geological Survey (MGS)
Contact Voice Telephone207-287-2801

Process Step
Process Description
                                Metadata imported.
                              
Source Used Citation Abbreviation
C:\temp\MGS\coastal_bluff_hazards.xml
Process Date2009-02-18
Process Time09:15:46


Process Step
Process Description
                                Dataset copied.
                              
Source Used Citation Abbreviation
Server=gisdatabase; Service=esri_vector; User=memgs; Version=SDE.DEFAULT
Process Date2011-06-07
Process Time11:44:02


Process Step
Process Description
                                Dataset copied.
                              
Source Used Citation Abbreviation
Server=som-teaqdbsql02; Service=sde:sqlserver:som-teaqdbsql02\UNO; Database=GISEDIT; User=MEMGS; Version=dbo.DEFAULT
Process Date2011-06-07
Process Time11:49:50


Spatial Reference 

Horizontal Coordinate System Definition
Planar
Planar Coordinate Information
Planar Coordinate Encoding Methodcoordinate pair
Coordinate Representation
Abscissa Resolution0.000512
Ordinate Resolution0.000512
Planar Distance Unitsmeters

Geodetic Model
Horizontal Datum NameNorth American Datum of 1983
Ellipsoid NameGeodetic Reference System 80
Semi-major Axis6378137.000000
Denominator of Flattening Ratio298.257222

Vertical Coordinate System Definition
Altitude System Definition
Altitude Resolution0.000010
Altitude Encoding MethodExplicit elevation coordinate included with horizontal coordinates

Entities and Attributes 

Detailed Description
Entity Type
Entity Type LabelGISVIEW.MEMGS.COASTAL_BLUFF_HAZARDS
Entity Type Definition
arc feature class
Entity Type Definition SourceESRI

Attribute
Attribute LabelOBJECTID
Attribute Definition
Internal feature number.
Attribute Definition SourceESRI
Attribute Domain Values
Unrepresentable Domain
Sequential unique whole numbers that are automatically generated.

Attribute
Attribute LabelShape
Attribute Definition
Feature geometry.
Attribute Definition SourceESRI
Attribute Domain Values
Unrepresentable Domain
Coordinates defining the features.

Attribute
Attribute LabelBLUFF
Attribute Definition
Is the shoreline a bluff?
Attribute Definition SourceMGS
Attribute Domain Values
Enumerated Domain
Enumerated Domain ValueX
Enumerated Domain Value Definition
not mapped or undetermined
Enumerated Domain
Enumerated Domain ValueY
Enumerated Domain Value Definition
bluff
Enumerated Domain
Enumerated Domain ValueN
Enumerated Domain Value Definition
not a bluff

Attribute
Attribute LabelTYPE
Attribute Definition
shoreline type corresponding to mapped units on the published coastal bluff maps
Attribute Definition SourceMGS
Attribute Domain Values
Enumerated Domain
Enumerated Domain ValueX
Enumerated Domain Value Definition
not mapped or undetermined
Enumerated Domain
Enumerated Domain ValueN
Enumerated Domain Value Definition
beach, mud flat, or other loose sediment
Enumerated Domain
Enumerated Domain ValueL
Enumerated Domain Value Definition
ledge (greater than 50-percent exposed bedrock outcrops)
Enumerated Domain
Enumerated Domain ValueA
Enumerated Domain Value Definition
armored (seawall, riprap, gabion, bulkhead, etc.)
Enumerated Domain
Enumerated Domain ValueV
Enumerated Domain Value Definition
vegetated; salt marsh

Attribute
Attribute LabelSTABILITY
Attribute Definition
relative bluff stability type corresponding to mapped units on the published coastal bluff maps
Attribute Definition SourceMGS
Attribute Domain Values
Enumerated Domain
Enumerated Domain ValueX
Enumerated Domain Value Definition
not mapped or undetermined
Enumerated Domain
Enumerated Domain ValueN
Enumerated Domain Value Definition
not a bluff
Enumerated Domain
Enumerated Domain ValueS
Enumerated Domain Value Definition
stable
Enumerated Domain
Enumerated Domain ValueU
Enumerated Domain Value Definition
unstable
Enumerated Domain
Enumerated Domain ValueH
Enumerated Domain Value Definition
highly unstable

Attribute
Attribute LabelLANDSLIDE
Attribute Definition
landslide code
Attribute Definition SourceMGS
Attribute Domain Values
Enumerated Domain
Enumerated Domain ValueX
Enumerated Domain Value Definition
not mapped or undetermined
Enumerated Domain
Enumerated Domain ValueN
Enumerated Domain Value Definition
no landslide potential
Enumerated Domain
Enumerated Domain ValueY
Enumerated Domain Value Definition
landslide potential determined from bluff type and elevation
Enumerated Domain
Enumerated Domain ValueR
Enumerated Domain Value Definition
site of a former landslide; see the value of newrefid for basis of identification of the coastal segment as a landslide site

Attribute
Attribute LabelHAZARD
Attribute Definition
landslide hazard corresponding to mapped units on the published coastal landslide map
Attribute Definition SourceMGS
Attribute Domain Values
Enumerated Domain
Enumerated Domain ValueX
Enumerated Domain Value Definition
not mapped or undetermined
Enumerated Domain
Enumerated Domain ValueNB
Enumerated Domain Value Definition
no landslide hazard - not a bluff
Enumerated Domain
Enumerated Domain ValueBN
Enumerated Domain Value Definition
no landslide hazard - bluff but no landslide potential
Enumerated Domain
Enumerated Domain ValueRPH
Enumerated Domain Value Definition
site of former landslide based on aerial photo interpretation or historical account
Enumerated Domain
Enumerated Domain ValueRF
Enumerated Domain Value Definition
landslide hazard - based on field observation
Enumerated Domain
Enumerated Domain ValueRA
Enumerated Domain Value Definition
potential landslide hazard based on aerial photo interpretation - needs further assessment

Attribute
Attribute LabelCOMMENT_

Attribute
Attribute LabelNEWREFID
Attribute Definition
basis of identifying the coastal segment as a landslide site
Attribute Definition SourceMGS
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value1-1999
Enumerated Domain Value Definition
landslide determined from air photo (Novak 1990)

Attribute
Attribute LabelGEOCODE
Attribute Definition
minor civil division (MCD) code of the town containing the shoreline segment
Attribute Definition SourceMGS

Attribute
Attribute LabelNAME
Attribute Definition
name of the town containing the shoreline segment
Attribute Definition SourceMGS

Attribute
Attribute LabelTILE
Attribute Definition
Maine Geological Survey GIS tile (derived from USGS 7.5-minute quadrangle name)
Attribute Definition SourceMGS

Attribute
Attribute LabelB_PUBCODE
Attribute Definition
Maine Geological Survey publication code/ordering number for the published coastal bluff open-file map
Attribute Definition SourceMGS

Attribute
Attribute LabelB_AUTHOR
Attribute Definition
author(s) of the published coastal bluff open-file map
Attribute Definition SourceMGS

Attribute
Attribute LabelB_PUBDATE
Attribute Definition
publication date of the published coastal bluff open-file map
Attribute Definition SourceMGS

Attribute
Attribute LabelB_TITLE
Attribute Definition
title of the published coastal bluff open-file map
Attribute Definition SourceMGS

Attribute
Attribute LabelB_SOURCE
Attribute Definition
source for the published coastal bluff open-file map
Attribute Definition SourceMGS

Attribute
Attribute LabelL_PUBCODE
Attribute Definition
Maine Geological Survey publication code/ordering number for the published coastal landslide hazard open-file map
Attribute Definition SourceMGS

Attribute
Attribute LabelL_AUTHOR
Attribute Definition
author(s) of the published coastal landslide hazard open-file map
Attribute Definition SourceMGS

Attribute
Attribute LabelL_PUBDATE
Attribute Definition
publication date of the published coastal landslide hazard open-file map
Attribute Definition SourceMGS

Attribute
Attribute LabelL_TITLE
Attribute Definition
title of the published coastal landslide hazard open-file map
Attribute Definition SourceMGS

Attribute
Attribute LabelGlobalID

Attribute
Attribute LabelL_SOURCE
Attribute Definition
source for the published coastal landslide hazard open-file map
Attribute Definition SourceMGS

Attribute
Attribute LabelSHAPE.len

Overview Description
Entity and Attribute Overview
                            Attribute table for coastal arcs.
                          

Distribution Information 

Resource DescriptionDownloadable Data

Metadata Reference 

Metadata Date2009-02-13
Metadata Contact
Contact Information
Contact Organization Primary
Contact OrganizationMaine Department of Conservation (MEDOC), Maine Geological Survey (MGS)
Contact PersonDirector, Earth Resource Information
Contact Address
Address Typemailing address
Address22 State House Station
CityAugusta
State or ProvinceME
Postal Code04333-0022
CountryUNITED STATES

Contact Voice Telephone207-287-2801

Metadata Standard NameFGDC Content Standards for Digital Geospatial Metadata
Metadata Standard VersionFGDC-STD-001-1998
Metadata Time Conventionlocal time


Metadata Extensions
Online Linkagehttp://www.esri.com/metadata/esriprof80.html
Profile NameESRI Metadata Profile
Metadata Extensions
Online Linkagehttp://www.esri.com/metadata/esriprof80.html
Profile NameESRI Metadata Profile