Metadata: Identification_Information: Citation: Citation_Information: Originator: Brabb, E.E. Originator: Colgan, J.P. Originator: Best, T.C. Publication_Date: 1999 Title: Map showing inventory and regional susceptibility for Holocene debris flows and related fast moving landslides in the conterminous United States: vector data Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Miscellaneous Field Studies Map Issue_Identification: 2329 Publication_Information: Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/mf/1999/2329/ Description: Abstract: Debris flows, debris avalanches, mud flows and lahars are fast-moving landslides that occur in a wide variety of environments throughout the world. They are particularly dangerous to life and property because they move quickly, destroy objects in their paths, and can strike with little warning. The purpose of this map is to show where debris flows have occurred in the conterminous United States and where these slope movements might be expected in the future. Purpose: These data are intended for geographic display and analysis at the national level, and for large regional areas. It is not intended for hazard evaluation or other site-specific work, and should not be used for such. It can be used to determine where debris flow processes may be a problem and where additional information and investigation are warranted. Although the digital form of the data removes the constraint imposed by the scale of a paper map, the detail and accuracy inherent in map scale are also present in the digital data. The fact that this database was edited at a scale of 1:2,500,000 means that higher resolution information is not present in the data. Plotting at scales larger than 1:2,500,000 will not yield greater real detail, and it may reveal fine-scale irregularities below the intended resolution of the database. Similarly, where this database is used in combination with other data of higher resolution, the resolution of the combined output will be limited by the lower resolution of these data. No responsibility is assumed by the U.S. Geological Survey in the use of these data. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1928 Ending_Date: 1999 Currentness_Reference: All of the data on this map were compiled from reports published or field work conducted after the year 1928. No distinction was made between debris flow scars, made shortly after the events and debris flow deposits, which may be thousands of years old. We believe that all of the debris flows described in this report formed during the past 10,000 years (Holocene), but some of them could be older. Status: Progress: Complete Maintenance_and_Update_Frequency: Irregular Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -127.58938288 East_Bounding_Coordinate: -69.47879091 North_Bounding_Coordinate: 48.75581563 South_Bounding_Coordinate: 31.800471 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: geology Theme_Keyword: maps and atlases Theme_Keyword: geospatial datasets Theme_Keyword: landslides Theme_Keyword: landslide susceptibility assessement Theme_Keyword: lahars Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Categories Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: debris flow Theme_Keyword: mud flow Theme_Keyword: lahar Theme_Keyword: debris avalanche Theme_Keyword: landslide Theme_Keyword: hazard Place: Place_Keyword_Thesaurus: U.S. Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions (Federal Information Processing Standard 10-4): Washington, D.C., National Institute of Standards and Technology. Place_Keyword: United States Place: Place_Keyword_Thesaurus: U.S. Department of Commerce, 1987, Codes for the Identification of the States, the District of Columbia and the Outlying Areas of The United States, and Associated Areas (Federal Processing Standard 5-2): Washington ,D.C., National Institute of Standards and Technology. Place_Keyword: USA Place_Keyword: Alabama Place_Keyword: Arizona Place_Keyword: Arkansas Place_Keyword: California Place_Keyword: Colorado Place_Keyword: Connecticut Place_Keyword: Delaware Place_Keyword: District of Columbia Place_Keyword: Florida Place_Keyword: Georgia Place_Keyword: Idaho Place_Keyword: Illinois Place_Keyword: Indiana Place_Keyword: Iowa Place_Keyword: Kansas Place_Keyword: Kentucky Place_Keyword: Louisiana Place_Keyword: Maine Place_Keyword: Maryland Place_Keyword: Massachusetts Place_Keyword: Michigan Place_Keyword: Minnesota Place_Keyword: Mississippi Place_Keyword: Missouri Place_Keyword: Montana Place_Keyword: Nebraska Place_Keyword: Nevada Place_Keyword: New Hampshire Place_Keyword: New Jersey Place_Keyword: New Mexico Place_Keyword: New York Place_Keyword: North Carolina Place_Keyword: North Dakota Place_Keyword: Ohio Place_Keyword: Oklahoma Place_Keyword: Oregon Place_Keyword: Pennsylvania Place_Keyword: Rhode Island Place_Keyword: South Carolina Place_Keyword: South Dakota Place_Keyword: Tennessee Place_Keyword: Texas Place_Keyword: Utah Place_Keyword: Vermont Place_Keyword: Virginia Place_Keyword: Washington Place_Keyword: West Virginia Place_Keyword: Wisconsin Place_Keyword: Wyoming Theme: Theme_Keyword_Thesaurus: National Geologic Map Database Catalog themes, augmented Theme_Keyword: 3100 - Vector Theme_Keyword: 3110 - ESRI Theme_Keyword: 3112 - export Theme_Keyword: 3200 - Raster Theme_Keyword: 1500 - Hazards Theme_Keyword: 1503 - Landslides Theme_Keyword: 3220 - Grid Place: Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4 Place_Keyword: US01 = Alabama Place_Keyword: US04 = Arizona Place_Keyword: US05 = Arkansas Place_Keyword: US06 = California Place_Keyword: US08 = Colorado Place_Keyword: US09 = Connecticut Place_Keyword: US10 = Delaware Place_Keyword: US11 = District of Columbia Place_Keyword: US12 = Florida Place_Keyword: US13 = Georgia Place_Keyword: US16 = Idaho Place_Keyword: US17 = Illinois Place_Keyword: US18 = Indiana Place_Keyword: US19 = Iowa Place_Keyword: US20 = Kansas Place_Keyword: US21 = Kentucky Place_Keyword: US22 = Louisiana Place_Keyword: US23 = Maine Place_Keyword: US24 = Maryland Place_Keyword: US25 = Massachusetts Place_Keyword: US26 = Michigan Place_Keyword: US27 = Minnesota Place_Keyword: US28 = Mississippi Place_Keyword: US29 = Missouri Place_Keyword: US30 = Montana Place_Keyword: US31 = Nebraska Place_Keyword: US32 = Nevada Place_Keyword: US33 = New Hampshire Place_Keyword: US34 = New Jersey Place_Keyword: US35 = New Mexico Place_Keyword: US36 = New York Place_Keyword: US37 = North Carolina Place_Keyword: US38 = North Dakota Place_Keyword: US39 = Ohio Place_Keyword: US40 = Oklahoma Place_Keyword: US41 = Oregon Place_Keyword: US42 = Pennsylvania Place_Keyword: US44 = Rhode Island Place_Keyword: US45 = South Carolina Place_Keyword: US46 = South Dakota Place_Keyword: US47 = Tennessee Place_Keyword: US48 = Texas Place_Keyword: US49 = Utah Place_Keyword: US50 = Vermont Place_Keyword: US51 = Virginia Place_Keyword: US53 = Washington Place_Keyword: US54 = West Virginia Place_Keyword: US55 = Wisconsin Place_Keyword: US56 = Wyoming Access_Constraints: None Use_Constraints: None. Acknowledgment of the National Atlas of the United States of America and (or) the U.S. Geological Survey would be appreciated in products derived from these data. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Steve Kambly Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: 561 National Center City: Reston State_or_Province: VA Postal_Code: 20192 Contact_Voice_Telephone: 703-648-5094 Contact_Electronic_Mail_Address: skambly@usgs.gov Data_Set_Credit: We are grateful to several state geologists and members of their staff who kindly reviewed a preliminary copy of the map and the bibliography and provided new information. We are particularly grateful to M. Lee Allison, State Geologist for Utah, and members of his staff who contributed a digital database of debris flow locations for Utah. We also wish to thank Stephen Ellen, Russell Campbell, Gerald Wieczorek, and David Howell for their reviews and help during various phases of the work. Native_Data_Set_Environment: The databases in this repot were compiled in ARC/INFO, a commercial Geographic Information System (Environmental Systems Research Institute, Redlands, California), with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). The files are in either GRID (ARC/INFO raster data) format or COVERAGE (ARC/INFO vector data) format. Coverages are stored in uncompressed ARC export format (ARC/INFO version 7.x). ARC/INFO export files (files with the .e00 extension) can be converted into ARC/INFO coverages in ARC/INFO (see below) and can be read by some other Geographic Information Systems, such as MapInfo via ArcLink and ESRI's ArcView (version 1.0 for Windows 3.1 to 3.11 is available for free from ESRI's web site: http://www.esri.com). The digital compilation was done in version 7.0.4 of ARC/INFO with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). Data_Quality_Information: Logical_Consistency_Report: No additional checks for topological consistency were performed on this data set. Completeness_Report: This data set includes an inventory of debris flows and related fast-moving landslides for the conterminous United States, and a susceptibility map covering the same area. This inventory is up-to-date as of August 1999, but there undoubtedly exists a significant amount of information that is not included in this report. Lineage: Process_Step: Process_Description: Best and Brabb prepared an inventory of past debris flows in 1984 using data from the reconnaissance field investigations and published and unpublished reports, a list of which was eventually published by Alger and Brabb (1985). This information was plotted on 1:500,000-scale USGS state maps and transferred by hand to a 1:2,500,000-scale greenline base map of the United States. Process_Date: 1984 Process_Step: Process_Description: In 1997, this greenline base map was scanned and registered by A. Barron and M. Sinor. The registered map was edited and digitized using ARC/INFO, and the REF database field was completed. No new information was added to the map at that time. Process_Date: 1997 Source_Produced_Citation_Abbreviation: dfiply3 Source_Produced_Citation_Abbreviation: dfipoints2 Process_Step: Process_Description: In 1998 and 1999, new information was added to bring the map up-to-date. The data were gathered from published and unpublished reports of debris flows primarily covering the years 1984 -1999. A few older reports were included that had been overlooked in the original map. In addition, all state geologists were contacted to find out if they had information on debris flows. Several state geologists and members of their staff provided significant new information. If a report included a map at a scale larger than that of the compilation (1:2,500,000), the map or a photocopy was scanned. Other reports contained only the names of places where debris flows had occurred, or a map at a scale smaller than 1:2,500,000, or a map with no geographic coordinates. In those cases, the debris flows were located on the appropriate 1:500,000-scale USGS state map or a 1:100,000-scale USGS topographic map and plotted by hand on a Mylar overlay. This overlay was then scanned. The scanning was done at 400 dpi on either a UMAX color flatbed scanner or a Contex FSC-8000dsp color scanner, depending on the size of the map or tracing. The scanned images were transformed from scanner coordinates to geographic coordinates in ARC/INFO with digital tics placed by hand. The scanned lines and/or points were edited interactively using ALACARTE (Wentworth and Fitzgibbon 1991), and the database fields (Tables 3 and 4) were filled in as appropriate. In addition, a new database field (table 5) was added to store the name of the state under which the report for a feature on the map was referenced. Process_Date: 1999 Source_Produced_Citation_Abbreviation: usadfip0251 Source_Produced_Citation_Abbreviation: usadfix0251 Process_Step: Process_Description: Creation of original metadata record Process_Date: 19990122 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peg Rawson Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: 521 National Center City: Reston State_or_Province: VA Postal_Code: 20192 Contact_Voice_Telephone: 703-648-4183 Contact_Electronic_Mail_Address: mrawson@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Complete chain SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Lambert Azimuthal Equal Area Lambert_Azimuthal_Equal_Area: Longitude_of_Projection_Center: -100.00 Latitude_of_Projection_Center: 45.00 False_Easting: 0.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 1.0 Ordinate_Resolution: 1.0 Planar_Distance_Units: METERS Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: GRS1980 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: USADFIX025L.PAT Entity_Type_Definition: Point attributes in coverage USADFIX025L (points showing the locations of debris flows in the conterminous United States) Attribute: Attribute_Label: STATE Attribute_Definition: Two-letter USPS state code Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value_Definition_Source: USGS MF-2329 Attribute: Attribute_Label: REF Attribute_Definition: The reference number(s) for a point or polygon, which refers to an entry in the bibliography for that state. Because multiple published and unpublished reports can refer to the same geographic area, a single point or polygon may contain many reference numbers. Multiple points or polygons may also contain the same reference number, since a single report may refer to multiple locations. Each points or polygon has a list of numbers, comma-delimited, with no spaces, that indicate every report in the bibliography which contains information for that location. Attribute_Definition_Source: USGS MF-2329 Attribute: Attribute_Label: DFTYPE Attribute_Definition: Subjective quality of point data Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Locations of debris flows and fast-moving landslides Enumerated_Domain_Value_Definition_Source: USGS MF-2329 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: Approximate location of debris flows and related fast-moving landslides Enumerated_Domain_Value_Definition_Source: USGS MF-2329 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: Identification as debris flow or related fast-moving landslide uncertain Enumerated_Domain_Value_Definition_Source: USGS MF-2329 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 4 Enumerated_Domain_Value_Definition: Approximate location, and uncertain identification as debris flow or related fast-moving landslide Enumerated_Domain_Value_Definition_Source: USGS MF-2329 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 5 Enumerated_Domain_Value_Definition: Location of debris flow or related fast-moving landslide specific only by county Enumerated_Domain_Value_Definition_Source: USGS MF-2329 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 6 Enumerated_Domain_Value_Definition: Identification as debris flow or related fast-moving landslide uncertain and specific only by county Enumerated_Domain_Value_Definition_Source: USGS MF-2329 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 7 Enumerated_Domain_Value_Definition: Location of debris flow or or related fast-moving landslide from unpublished report Enumerated_Domain_Value_Definition_Source: USGS MF-2329 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 8 Enumerated_Domain_Value_Definition: Approximate location and uncertain identification as debris flow or related fast-moving landslide Enumerated_Domain_Value_Definition_Source: USGS MF-2329 Detailed_Description: Entity_Type: Entity_Type_Label: USADFIP025L.PAT Entity_Type_Definition: Polygon attributes in coverage USADFIP025L (polygons showing the locations of debris flows in the conterminous United States) Entity_Type_Definition_Source: USGS MF-2329 Attribute: Attribute_Label: STATE Attribute_Definition: Two-letter USPS state code Attribute_Definition_Source: USGS MF-2329 Attribute: Attribute_Label: REF Attribute_Definition: The reference number(s) for a point or polygon, which refers to an entry in the bibliography for that state. Because multiple published and unpublished reports can refer to the same geographic area, a single point or polygon may contain many reference numbers. Multiple points or polygons may also contain the same reference number, since a single report may refer to multiple locations. Each points or polygon has a list of numbers, comma-delimited, with no spaces, that indicate every report in the bibliography which contains information for that location. Attribute_Definition_Source: USGS MF-2329 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Information Services Contact_Address: Address_Type: mailing address Address: Box 25286 Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Facsimile_Telephone: 303-202-4693 Distribution_Liability: Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made by the U.S. Geological Survey regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by the U.S. Geological Survey in the use of these data. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE Format_Version_Number: 7.0 Format_Information_Content: Debris flow inventory points and polygons, shaded relief map File_Decompression_Technique: unzip Transfer_Size: 3.6 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/mf/1999/2329/debrisflow.zip Fees: none Metadata_Reference_Information: Metadata_Date: 20150223 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peter N Schweitzer Contact_Organization: USGS Midwest Area Contact_Position: Collection manager, USGS Geoscience Data Clearinghouse, http://geo-nsdi.er.usgs.gov/ Contact_Address: Address_Type: mailing address Address: Mail Stop 954 12201 Sunrise Valley Dr City: Reston State_or_Province: VA Postal_Code: 20192-0002 Country: USA Contact_Voice_Telephone: 703-648-6533 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998