Digital data set of mapped karst features in south-central and southeastern Pennsylvania


Identification_Information:
Citation:
Citation_Information:
Originator:Bureau of Toppographic and Geologic Survey, Department of Conservaton and Natural Resources
Publication_Date:2007
Title:
Digital data set of mapped karst features in south-central and southeastern Pennsylvania
Edition:1.1
Geospatial_Data_Presentation_Form:vector digital data
Online_Linkage: http://www.pasda.psu.edu/
Description:
Abstract:
This point dataset represents an (incomplete) inventory of karst features (herein categorized as sinkholes, surface depressions, surface mines, or cave entrances) that have been cataloged in Pennsylvania by the staff of the Pennsylvania Geological Survey since 1985. County-wide karst-feature inventories for fourteen counties (Adams, Berks, Bucks, Centre, Chester, Cumberland, Dauphin, Franklin, Lancaster, Lebanon, Lehigh, Montgomery, Northampton, and York) were originally released as hard-copy open file reports by the agency. The user of this dataset would be well served to consult one of those reports for specifics on how the inventories were conducted. Data are also provided from incidental reports of karst features as well as partial or cursory inventories in eight additional counties (Bedford, Blair, Clinton, Fulton, Huntingdon, Juniata, Lycoming, and Mifflin). 

The majority of these features were identified on contact prints of USDA, USGS, and other aerial photography. Photo locations were then transferred to paper copies of USGS 7.5 minute quadrangles where the coordinates for the locations were determined using a constantly evolving array of technologies from mylar overlay grids, through early proprietary mapping software and more recently with GIS and GPS technology. . Some features in urbanized areas were identified via questionaires that were sent to the municipalities in the counties being inventoried. The locations of surface mines and cave entrances were garnered from historical geological publicatons. 

Locations of historical iron mines and other activities often associated with karst features were garnered from historical geological publications. 

Field surveys were undertaken to establish protocol for future mapping efforts as well as to verify the field presence of interpreted features. Field verified sites are not identified in the data set.

Karst features change considerablely over time. Sinkholes become filled or subsidence is repaired. One of the motivations for the karst inventory program was the rapid development taking place in many of the counties where karst could be a problem. Development obliterates much of the evidence for underlying karst features.
Purpose:
The purpose of this dataset is to provide an approximate location and identify the type of karst features contained in the inventory at the Pennsylvania Geological Survey.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground.
Currentness_Reference:
publication date
Status:
Progress:Complete
Maintenance_and_Update_Frequency:Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate:-78.662110
East_Bounding_Coordinate:-74.970650
North_Bounding_Coordinate:41.192530
South_Bounding_Coordinate:39.721000
Keywords:
Theme:
Theme_Keyword_Thesaurus:ISO 19115 Topic Categories
Theme_Keyword:karst
Theme_Keyword:sinkhole
Theme_Keyword:limestone
Theme_Keyword:carbonate
Theme_Keyword:surface depression
Theme_Keyword:geoscientificinformation
Place:
Place_Keyword:Pennsylvania
Place_Keyword:Adams County
Place_Keyword:Bedford County
Place_Keyword:Berks County
Place_Keyword:Blair County
Place_Keyword:Bucks County
Place_Keyword:Centre County
Place_Keyword:Chester County
Place_Keyword:Clinton County
Place_Keyword:Cumberland County
Place_Keyword:Dauphin County
Place_Keyword:Franklin County
Place_Keyword:Fulton County
Place_Keyword:Juniata County
Place_Keyword:Lancaster County
Place_Keyword:Lebanon County
Place_Keyword:Lehigh County
Place_Keyword:Lycoming County
Place_Keyword:Mifflin County
Place_Keyword:Montgomery County
Place_Keyword:Northampton County
Place_Keyword:York County
Place_Keyword:Huntingdon County
Use_Constraints:
The point data set for the mapped karst features may be used provided that credit for the original (unaltered) data set is given to the Pennsylvania Department of Conservation and Natural Resources, Bureau of Topographic and Geologic Survey (PaGS).  Users shall clearly indicate the source of the data.

Users who modify the data in any way are obligated to describe the types of modifications they have made, including modifications to hard-copy maps. Users are not to misrepresent PaGS data sets, nor to imply that changes they (users) have made were approved by the PaGS.

    This data set is not designed for use as a primary regulatory tool in permitting and siting decisions. This is public information and, as such, it may be used as a reference source and may be interpreted by organizations, agencies, units of government, or others based on needs; however, each user is responsible for the appropriate application of the data. Federal, state, or local regulatory bodies are not to reassign to the Bureau of Topographic and Geologic Survey any authority for the decisions they make using these data sets.

This dataset should not be used to predict the location of future sinkholes.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Bureau of Topographic and Geologic Survey
Contact_Person:William E. Kochanov, PG
Contact_Address:
Address_Type:mailing and physical address
Address:
3240 Schoolhouse Road
City:Middletown
State_or_Province:PA
Postal_Code:17057
Country:USA
Contact_Voice_Telephone:717-702-2017
Contact_Facsimile_Telephone:717-702-2065
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attributes include the NAD1927 lattitude and longitude as determined during the inventory and data collection process. These coordinates were determined using a variety of sources and methodologies and are of varing accuracy. Users are advised to consider these locations as approximate. The digital GIS data set was created by plotting the locations using these attributes.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Locationss were determined using a variety of sources and methodologies and are of varing accuracy. Users are advised to consider these locations as approximate.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Not applicable
Lineage:
Source_Information:
Source_Scale_Denominator:24000
Type_of_Source_Media:online
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method:Point
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type:Entity point
Point_and_Vector_Object_Count:144245
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution:0.000000
Longitude_Resolution:0.000000
Geographic_Coordinate_Units:Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name:North American Datum of 1927
Ellipsoid_Name:Clarke 1866
Semi-major_Axis:6378206.400000
Denominator_of_Flattening_Ratio:294.978698
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label:DCNR_PAKarst
Attribute:
Attribute_Label:FID
Attribute_Definition:
Internal feature number.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label:Shape
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label:Lat_DD
Attribute_Definition:
Latitude in decimal degrees, NAD1927
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Varies due to source and methodology
Attribute:
Attribute_Label:Long_DD
Attribute_Definition:
Longitude in decimal degrees, NAD1927
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Varies due to source and methodology
Attribute:
Attribute_Label:Karst_Type
Attribute_Definition:
Type of feature identified at this location
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value:surface depression
Enumerated_Domain_Value_Definition:
A surficial landscape feature of negative relief, generally bowl-shaped, with shallow to moderate sidewalls; it may be of various size and depth
Enumerated_Domain_Value_Definition_Source:
William Kochanov, Pennsylvania Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value:sinkhole
Enumerated_Domain_Value_Definition:
A surficial landscape feature of negative relief, generally circular in outline, but can be variable in length, width and depth; differentiated from surface depressions by exhibiting a distinct breaking of the ground surface and generally steep to near vertical sidewalls. 
Enumerated_Domain_Value_Definition_Source:
William Kochanov, Pennsylvania Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value:surface mine
Enumerated_Domain_Value_Definition:
A surficial excavation (i.e., quarry, pit) used for the extraction of non-metallic or metallic resources
Enumerated_Domain_Value_Definition_Source:
William Kochanov, Pennsylvania Geological Survey
Enumerated_Domain:
Enumerated_Domain_Value:cave
Enumerated_Domain_Value_Definition:
A natural underground open space, generally with a connection to the surface and large enough for a person to enter
Enumerated_Domain_Value_Definition_Source:
Modified from the AGI Glossary of Geology
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Pennsylvania Spatial Data Access (PASDA)
Contact_Address:
Address_Type:mailing address
Address:
115 Land and Water building
City:University Park
State_or_Province:Pennsylvania
Postal_Code:16802
Country:United States
Contact_Voice_Telephone:(814) 865 - 8792
Contact_Electronic_Mail_Address:pasda@psu.edu
Resource_Description:Downloadable Data
Distribution_Liability:
The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size:3.852
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Metadata_Reference_Information:
Metadata_Date:20091028
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Bureau of Topographic and Geologic Survey
Contact_Person:Michael E Moore, PG
Contact_Position:Chief of GIS Services
Contact_Address:
Address_Type:mailing and physical address
Address:
3240 Schoolhouse Road
City:3240 Schoolhouse Road
State_or_Province:Pennsylvania
Postal_Code:17057
Country:United States
Contact_Voice_Telephone:717-702-2017
Contact_Facsimile_Telephone:717-702-2065
Contact_Electronic_Mail_Address:michmoore@state.pa.us
Hours_of_Service:8:00 AM - 4:30 PM, Monday through Friday
Metadata_Standard_Name:FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version:FGDC-STD-001-1998
Metadata_Time_Convention:local time
Metadata_Security_Information:
Metadata_Security_Classification:Unclassified
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name:ESRI Metadata Profile
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