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:
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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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