U. S. Geological Survey

INVENTORY OF DEBRIS FLOWS AND FLOODS IN THE LOVINGSTON AND HORSESHOE MOUNTAIN, VA, 7.5' QUADRANGLES, FROM THE AUGUST 19/20, 1969, STORM IN NELSON COUNTY, VIRGINIA

 

BY B. A. MORGAN, G. IOVINE, P. CHIRICO, AND G. F. WIECZOREK

 

OPEN-FILE REPORT 99-518

 

1999

 

Arcs metadata
Metadata:
  IDENTIFICATION_INFORMATION:
 
    Citation:
      Citation_Information:
        Originator: United States Geological Survey, Eastern Regional Earth Surface Processes Team, 
        Publication_Date: 20000000
        Title: Nelson County Debris Flow Study: Arcs Coverage
 
    Description:  

      Abstract:
	In August 19/20, 1969 71 cm of rain fell in the Nelson
      County area of Virginia. The intense debris and floods that
      followed extensively damaged roads, bridges, communication
      systems, houses, farms, and livestock, as well as taking
      150 lives. This inventory is of the debris flows and floods
      which are digitally based, and are derived from aerial
      photography collected August 25, 1969 and April 27, 1971.
      This study was undertaken to provide a basis for detailed
      analysis of both terrain and failure sites using GIS
      techniques not available to earlier studies.   
           
      Purpose:
	The analysis will provide data for a model for the
      Appalachian Mountains of central Virginia that will address
      problems of location, recurrence, and conditions leading to
      the triggering of debris flows.    
         
      Supplemental_Information:
	The damage incurred in Nelson County, VA in August 1969
      was the result of an eight-hour stall of Hurricane Camille.
      Since 1969, Virginia has experienced other devastating floods
      in other locations other than Nelson County. The authors of
      this project (Morgan, Wieczorek, and others) have had
      opportunity to continue their GIS research techniques in
      these areas (i.e., Madison County, 1995).
          
    Time_Period_of_Content:
      Time_Period_Information:
        Range_of_Dates/Times:
          Beginning_Date:19980000 
          Ending_Date: 19990000
      Currentness_Reference: Publication Date
 
    Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: None Planned
 
    Spatial_Domain:
      Bounding_Coordinates:
        West_Bounding_Coordinate: -79.0022
	East_Bounding_Coordinate: -78.7465
	North_Bounding_Coordinate: 37.8790
	South_Bounding_Coordinate: 37.7456
 
 
    Keywords:
      Theme:
        Theme_Keyword_Thesaurus: 
        Theme_Keyword: debris-flow
        Theme_Keyword: flood
        Theme_Keyword: Hurricane Camille
        Theme_Keyword: 
      Place:
        Place_Keyword_Thesaurus: 
        Place_Keyword:Nelson County
        Place_Keyword:Virginia
        Place_Keyword:Horseshoe Mountain
        Place_Keyword:Lovingston

    Access_Constraints: none
      
 
    Use_Constraints:
	Although all data and software released on this CD-ROM have
    been used by the USGS, no warranty, expressed or implied,
    is made by the USGS as to the accuracy of the data and
    related materials and (or) the functioning of the software.
    Any use of trade, product, or firm names is for descriptive
    purposes only and does not imply endorsement by the U.S. Government.
       
 
  METADATA_REFERENCE_INFORMATION:
 
    Metadata_Date:20000000 
    Metadata_Contact:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: USGS Eastern Earth Surface Processes Team 
        Contact_Position: 
        Contact_Address:
          Address_Type: mailing and physical address
          Address: 926A National Center, 12201 Sunrise Valley Drive
          City: Reston
          State_or_Province: VA
          Postal_Code: 20192
          Country: U.S.A.
        Contact_Voice_Telephone: 
        Contact_Facsimile_Telephone: 
        Contact_Electronic_Mail_Address: pchirico@usgs.gov
        Hours_of_Service: 9:00 am - 5:00 pm, Monday - Friday
 
    Metadata_Standard_Name: FGDC contact standards for digital geospatial metadata
    Metadata_Standard_Version: FGDC-STD-001-1998
 
  DATA_QUALITY_INFORMATION:
 
    Logical_Consistency_Report:
       Chain-node topology present.
       
    Completeness_Report: Completed
          
    Lineage:
      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: U.S. Geological Survey
            Publication_Date: 19990000
            Title: 
        Source_Scale_Denominator: 
        Type_of_Source_Media: Aerial Photographs
        Source_Time_Period_of_Content: 1969, 1972
          Time_Period_Information: 
            Single_Date/Time:
              Calendar_Date: 
          Source_Currentness_Reference: publication date
        Source_Citation_Abbreviation: 
        Source_Contribution: 
      Process_Step:
        Process_Description:
		Data was gathered from aerial photographs (1969, 1972),
        transferred to mylar overlaying a stable base maps of the
        Lovingston, VA and Horseshoe Mountain, VA 7.5' topographic
        quadrangles. The mylar was scanned and imported into ARCINFO where it 	 
	was digitally edited into layers of debris flows and flood
        effects. Digital raster graphics (DRGs) were used as the base-maps for 	  
	plots of the debris flows and flood effect.
          
        Process_Date: 19990000
 
  Entity_and_Attribute_Information:
    Overview_Description: 
      Entity_and_Attribute_Overview: 
        See Explanation of Database file. aat = Type
					  
      Entity_and_Attribute_Detail_Citation:
        See Explanation of Database file.
		Arcs		Type = 1 = Debris-flow tracts
			       	       

  SPATIAL_REFERENCE_INFORMATION:  
    Horizontal_Coordinate_System_Definition:
      Geographic:
        Geographic_Coordinate_Units:
      Planar:
        Grid_Coordinate_System:
          Grid_Coordinate_System_Name:  Universal Transverse Mercator
          Universal_Transverse_Mercator:  
            Transverse_Mercator:
              Scale_Factor_at_Central_Meridian: 0.999600
              Longitude_of_Central_Meridian:-81.00000
              Latitude_of_Projection_Origin:0.0000
              False_Easting:500000.000
              False_Northing:0.0000
            UTM_Zone_Number: 17
        Planar_Coordinate_Information:
          Planar_Distance_Units: Meters  
          Planar_Coordinate_Encoding_Method:
          Coordinate_Representation:
            Abscissa_Resolution:
            Ordinate_Resolution:
      Geodetic_Model:  
        Horizontal_Datum_Name: North American Datum 1927
        Ellipsoid_Name:  Clark 1866
        Semi-major_Axis: 6378206.4000000 
        Denominator_of_Flattening_Ratio: 294.98

    Vertical_Coordinate_System_Definition:    
      Altitude_System_Definition:
        Altitude_Encoding_Method:
        Altitude_Datum_Name:
        Altitude_Resolution:
        Altitude_Distance_Units:

  DISTRIBUTION_INFORMATION:
 
    Distributor:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: Earth Surface Processes Team, Eastern Region
        Contact_Address:
          Address_Type: Mailing and Physical Address
          Address: 12201 Sunrise Valley Drive, National Center MS926A
          City: Reston
          State_or_Province: Virginia
          Postal_Code: 20192
          Country: U.S.A.
        Contact_Voice_Telephone: 
        Contact_Facsimile_Telephone: 
        Contact_Electronic_Mail_Address: pchirico@usgs.gov 
        Hours_of_Service: 9:00 am - 5:00 pm, Monday - Friday
        
     Distribution_Liability: 
      
     Standard_Order_Process: 
      Digital_Transfer_Option: 
         Digital_Transfer_Information:
            Format_Name: 
      Standard_Transfer_Option:   
          Offline_Option: 
            Offline_Media: 
            Recording_Format: 



Debris Flow metadata.
Metadata:
  IDENTIFICATION_INFORMATION:
 
    Citation:
      Citation_Information:
        Originator: United States Geological Survey, Eastern Regional Earth Surface Processes Team 
        Publication_Date:19990000 
        Title: Nelson County Debris Flow Study: Debris Flow Coverage
 
    Description:  

      Abstract:
	In August 19/20, 1969 71 cm of rain fell in the Nelson
      County area of Virginia. The intense debris and floods that
      followed extensively damaged roads, bridges, communication
      systems, houses, farms, and livestock, as well as taking
      150 lives. This inventory is of the debris flows and floods
      which are digitally based, and are derived from aerial
      photography collected August 25, 1969 and April 27, 1971.
      This study was undertaken to provide a basis for detailed
      analysis of both terrain and failure sites using GIS
      techniques not available to earlier studies. 
           
      Purpose:
	The analysis will provide data for a model for the
      Appalachian Mountains of central Virginia that will address
      problems of location, recurrence, and conditions leading to
      the triggering of debris flows.  
         
      Supplemental_Information:
	The damage incurred in Nelson County, VA in August 1969
      was the result of an eight-hour stall of Hurricane Camille.
      Since 1969, Virginia has experienced other devastating floods
      in other locations other than Nelson County. The authors of
      this project (Morgan, Wieczorek, and others) have had
      opportunity to continue their GIS research techniques in
      these areas (i.e., Madison County, 1995).
          
    Time_Period_of_Content:
      Time_Period_Information:
        Range_of_Dates/Times:
          Beginning_Date: 19980000 
          Ending_Date: 19980000 
      Currentness_Reference: Publication Date 
 
    Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: None Planned 
 
    Spatial_Domain:
      Bounding_Coordinates:
        West_Bounding_Coordinate: -79.0022
	East_Bounding_Coordinate: -78.7465
	North_Bounding_Coordinate: 37.8790
	South_Bounding_Coordinate: 37.7456
 
    Keywords:
      Theme:
        Theme_Keyword_Thesaurus: 
        Theme_Keyword: debris-flow
        Theme_Keyword: flood
        Theme_Keyword: Hurricane Camille
        Theme_Keyword: 
      Place:
        Place_Keyword_Thesaurus: 
        Place_Keyword: Nelson County
        Place_Keyword: Virginia
        Place_Keyword: Horseshoe Mountain
        Place_Keyword: Lovingston

    Access_Constraints: none
      
 
    Use_Constraints:
	Although all data and software released on this CD-ROM have
    been used by the USGS, no warranty, expressed or implied,
    is made by the USGS as to the accuracy of the data and
    related materials and (or) the functioning of the software.
    Any use of trade, product, or firm names is for descriptive
    purposes only and does not imply endorsement by the U.S. Government.
       
 
  METADATA_REFERENCE_INFORMATION:
 
    Metadata_Date: 20000000
    Metadata_Contact:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: USGS Eastern Earth Surface Processes Team 
        Contact_Position: 
        Contact_Address:
          Address_Type: mailing and physical address
          Address: 926A National Center, 12201 Sunrise Valley Drive
          City: Reston
          State_or_Province: VA
          Postal_Code: 20192
          Country: U.S.A.
        Contact_Voice_Telephone: 
        Contact_Facsimile_Telephone: 
        Contact_Electronic_Mail_Address: pchirico@usgs.gov
        Hours_of_Service: 9:00 am - 5:00 pm, Monday - Friday
 
    Metadata_Standard_Name: FGDC contact standards for digital geospatial metadata
    Metadata_Standard_Version: FGDC-STD-001-1998
 
  DATA_QUALITY_INFORMATION:
 
    Logical_Consistency_Report:
      Polygon and chain-node topology present.
       
    Completeness_Report: Completed
          
    Lineage:
      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: U.S. Geological Survey
            Publication_Date: 19990000
            Title: 
        Source_Scale_Denominator: 
        Type_of_Source_Media: Aerial Photographs
        Source_Time_Period_of_Content: 1969, 1972
          Time_Period_Information: 
            Single_Date/Time:
              Calendar_Date: 
          Source_Currentness_Reference: publication date
        Source_Citation_Abbreviation: 
        Source_Contribution: 
      Process_Step:
        Process_Description:
		Data was gathered from aerial photographs (1969, 1972),
        transferred to mylar overlaying a stable base maps of the
        Lovingston, VA and Horseshoe Mountain, VA 7.5' topographic
        quadrangles. The mylar was scanned and imported into ARCINFO where it 	 
	was digitally edited into layers of debris flows and flood
        effects. Digital raster graphics (DRGs) were used as the base-maps for 	  
	plots of the debris flows and flood effect.
          
        Process_Date: 19990000
 
  Entity_and_Attribute_Information:
    Overview_Description: 
      Entity_and_Attribute_Overview: 
        See Explanation of Database file. pat = Type
					  aat = Type

      Entity_and_Attribute_Detail_Citation:
        See Explanation of Database file.
		Polygons	Type = 1 = Debris Flows
				       2 = Flood Effects

		Arcs		Type = 1 = Debris Flow Boundary
				       2 = Flood Effect Boundary

  SPATIAL_REFERENCE_INFORMATION:  
    Horizontal_Coordinate_System_Definition:
      Geographic:
        Geographic_Coordinate_Units:
      Planar:
        Grid_Coordinate_System:
          Grid_Coordinate_System_Name:  Universal Transverse Mercator
          Universal_Transverse_Mercator:  
            Transverse_Mercator:
              Scale_Factor_at_Central_Meridian: 0.999600
              Longitude_of_Central_Meridian: -81.000000
              Latitude_of_Projection_Origin: 0.0000
              False_Easting: 500000.000
              False_Northing: 0.0000
            UTM_Zone_Number: 17
        Planar_Coordinate_Information:
          Planar_Distance_Units: Meters 
          Planar_Coordinate_Encoding_Method:
          Coordinate_Representation:
            Abscissa_Resolution:
            Ordinate_Resolution:
      Geodetic_Model:  
        Horizontal_Datum_Name: North American Datum 1927
        Ellipsoid_Name: Clark 1866 
        Semi-major_Axis: 6378206.4000000 
        Denominator_of_Flattening_Ratio: 294.98

    Vertical_Coordinate_System_Definition:    
      Altitude_System_Definition:
        Altitude_Encoding_Method:
        Altitude_Datum_Name:
        Altitude_Resolution:
        Altitude_Distance_Units:

  DISTRIBUTION_INFORMATION:
 
    Distributor:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: Earth Surface Processes Team, Eastern Region
        Contact_Address:
          Address_Type: Mailing and Physical Address
          Address: 12201 Sunrise Valley Drive, National Center MS926A
          City: Reston
          State_or_Province: Virginia
          Postal_Code: 20192
          Country: U.S.A.
        Contact_Voice_Telephone: 
        Contact_Facsimile_Telephone: 
        Contact_Electronic_Mail_Address: pchirico@usgs.gov
        Hours_of_Service: 9:00 am - 5:00 pm, Monday - Friday
        
     Distribution_Liability: 
      
     Standard_Order_Process: 
      Digital_Transfer_Option: 
         Digital_Transfer_Information:
            Format_Name:
      Standard_Transfer_Option:   
          Offline_Option: 
            Offline_Media: 
            Recording_Format: 




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