Metadata: Identification_Information: Citation: Citation_Information: Originator: Jonathan W. Godt Originator: Jeffrey A. Coe Publication_Date: 2003 Title: Map showing alpine debris flows triggered by a July 28, 1999 thunderstorm in the central Front Range of Colorado: Debris-flow polygons Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 03-050 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2003/ofr-03-050/ Larger_Work_Citation: Citation_Information: Originator: Jonathan W. Godt Originator: Jeffrey A. Coe Publication_Date: 2003 Title: Map showing alpine debris flows triggered by a July 28, 1999 thunderstorm in the central Front Range of Colorado Edition: 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 03-050 Online_Linkage: http://pubs.usgs.gov/of/2003/ofr-03-050/ Description: Abstract: On July 28, 1999, about 480 debris flows were triggered by an afternoon thunderstorm along the Continental Divide in Clear Creek and Summit counties in the central Front Range of Colorado. This cover shows the outlines of debris-flow source areas, travel zones, and deposits. Jonathan Godt and Jeffrey Coe mapped the debris flows from 1:12,000 scale color aerial photography using a Kern PG-2 photogrammetric plotter. The photographs were scaled and oriented to the topographic base map using prominent topographic landmarks and plotted on a transparent polyester overlay registered to the topographic base maps at 1:12,000 scale. The mapped landslides were digitized manually in ArcInfo. The final scale of the data are 1:24,000. Purpose: The purpose of these data is provide an inventory the debris flows that were triggered over a 2-square kilometer area in the central Front Range of Colorado by a July 28, 1999 thunderstorm. These data do not consitute a debris-flow hazard map of the area. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20000911 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -105.913431 East_Bounding_Coordinate: -105.752311 North_Bounding_Coordinate: 39.774776 South_Bounding_Coordinate: 39.586585 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: landslides Theme_Keyword: geospatial datasets Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Categories Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4 Place_Keyword: f08019 = Clear Creek Place_Keyword: f08049 = Grand Place_Keyword: f08117 = Summit Access_Constraints: none Use_Constraints: This map is an inventory map, not hazard map, and should not be enlarged to a scale larger than 1:24,000. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jonathan Godt Contact_Organization: U.S. Geological Survey Contact_Position: Physical Scientist Contact_Address: Address_Type: mailing address Address: Box 25046, MS 966 City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 303-273-8626 Contact_Facsimile_Telephone: 303-273-8600 Contact_Electronic_Mail_Address: jgodt@usgs.gov Hours_of_Service: 8am - 4pm MST Contact_Instructions: e-mail contact preferred Browse_Graphic: Browse_Graphic_File_Name: http://geo-nsdi.er.usgs.gov/metadata/open-file/03-50/browse.png Browse_Graphic_File_Description: Reduced-size image of the map sheet, 617x822 pixels, 696k bytes Browse_Graphic_File_Type: PNG Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 2; ESRI ArcCatalog 8.2.0.700 Data_Quality_Information: Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The scale of the aerial photography allowed us to accurately identify debris-flow features as small as about 0.5 m. At 1:24,000 scale, debris-flow features less than about 5 m wide (~ 0.2 mm at 1:24,000) are not visible. Lineage: Process_Step: Process_Description: The debris-flow source areas, travel paths, and deposits were mapped using 1:12,000-scale color aerial photographs and a Kern PG-2 photogrammetric plotter. The photographs were scaled and oriented to the topographic base map using prominent topographic landmarks and plotted on a transparent polyester overlay registered to the topographic base maps at a scale of 1:12,000. The mapped debris flows were digitized manually in ArcInfo. Process_Step: Process_Description: Creation of original metadata record Process_Date: 20030314 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jonathan W. Godt Contact_Organization: U.S. Geological Survey Contact_Position: Physical Scientist Contact_Address: Address_Type: mailing address Address: Box 25046, MS 966 City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 303-273-8626 Contact_Facsimile_Telephone: 303-273-8600 Contact_Electronic_Mail_Address: jgodt@usgs.gov Hours_of_Service: 8am-4pm MST Contact_Instructions: e-mail is preferred contact Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Complete chain Point_and_Vector_Object_Count: 1553 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Label point Point_and_Vector_Object_Count: 327 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 329 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 546 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 13 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -105.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000011 Ordinate_Resolution: 0.000011 Planar_Distance_Units: meters 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 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: fr-dfcl2.aat Entity_Type_Definition: boundary line Attribute: Attribute_Label: BOUND Attribute_Definition: indicates whether the arc encloses the study area boundary Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: stdy Enumerated_Domain_Value_Definition: study area boundary Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: null Enumerated_Domain_Value_Definition: not study area boundary Detailed_Description: Entity_Type: Entity_Type_Label: fr-dfcl2.pat Entity_Type_Definition: debris flow or othe polygonal area of interest Attribute: Attribute_Label: SURFACE Attribute_Definition: indicates feature type Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: df Enumerated_Domain_Value_Definition: debris flow Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: cd Enumerated_Domain_Value_Definition: channel deposit - not shown on map Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: stdy Enumerated_Domain_Value_Definition: study area polygon 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 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Facsimile_Telephone: 303-202-4693 Contact_Electronic_Mail_Address: ask@usgs.gov Resource_Description: USGS Open-File Report 03-50 Distribution_Liability: This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, firm, or product 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: 8.x Format_Information_Content: Debris-flow polygons Transfer_Size: 1.8 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2003/ofr-03-050/downloads/fr-dfcl2.e00 Fees: none Metadata_Reference_Information: Metadata_Date: 20160613 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 Metadata_Access_Constraints: none Metadata_Use_Constraints: none