Table of Contents
Identification_Information Abstract Purpose Supplemental Information Data_Quality_Information Spatial_Data_Organization_Information Entity_and_Attribute_Information Detailed Description Overview Distribution_Information Metadata_Reference_Section
Identification_Information
Citation_Information Originator: Schilling, Steve P. Publication_Date: 4/1/96 Publication_Time: unknown Title: Boundaries for lahar hazard zone for Mount Adams, Washington Geospatial_Data_Presentation_Format: map Series_Information Series_Name: OFR 96-178a Publication_Information Publication_Place: Vancouver, WA Publisher: U.S. Geological Survey Online_Linkage: http://vulcan.wr.usgs.gov/Hazards/ Larger_Work_Citation: OFR 96-178 Scale_Denominator: 100000Description Abstract This data set shows the boundaries for lahars, debris avalanches and other related zones for Mount Adams (Scott and others, 1995). The lines in this data set are labeled according to the type of volcanic hazard. Nine registration marks are distributed over the hazard zones. The coverage is in the universal transverse mercator projection.
ANY USE OF TRADE, FIRM, OR PRODUCT NAMES IS FOR DESCRIPTIVE PURPOSES ONLY AND DOES NOT IMPLY ENDORSEMENT BY THE U.S. GOVERNMENT.
Keywords: None.
Purpose This data set is intended for analysis, planning, and making maps of hazards. The boundaries do not mark a distinct change between hazard and no-hazard areas. The degree of hazard decreases with increase of distance or elevation outside the boundary. Because lahars and debris avalanches are complex phenomena and they are the major volcanic hazard at Mount Adams, it is recommended that users read Scott and others (1995).
Supplemental_Information Procedures_Used A stable base map with linework was obtained from the authors. Latitude, longitude registration ticks were added to the base and used to orient the map on a digitizing tablet. Linework was collected in ArcEdit with digitizer inch units, a weed tolerance of 0, and a nodesnap set to closest 0.05 inches. A second coverage was created from the original. The decimal degree latitude and longitude values were substituted for the digitizer inch values in the second coverage. The second coverage was reprojected to a UTM projection with parameters of zone 10, units in meters, and a spheroid of Clarke 1866. The original coverage was transformed to the second projection to create a coverage in meters. RMS values were inspected during the transformation. The final coverage was plotted at the same scale as the base map, overlain on the basemap and checked for errors. The dataset was renamed to admlahar for Mount Adams lahar hazard zone.
Revisions None.
Reviews_Applied Reviewed, Not Published.
Related_Spatial_and_Tabular_Data_Sets None.
Other_References_Cited See ADMLAHAR.REF info file for source and further explanation of lahar hazard from Mount Adams, Washington.
Notes None.
Time_Period_of_Content Currentness_Reference None.
Status Progress: Published Maintenance_and_Update_Frequency As needed
Spatial_Domain Bounding_Coordinates West_Bounding_Coordinate: -122.2446 East_Bounding_Coordinate: -121.008 North_Bounding_Coordinate: 46.523 South_Bounding_Coordinate: 45.585
Keywords Theme Theme_Keyword_Thesaurus: None Theme_Keyword: Boundaries of lahar, debris avalanche, and related hazards Place Place_Keyword_Thesaurus: None Place_Keyword: Flanks of Mount Adams and surrounding area, Washington Stratum Stratum_Keyword_Thesaurus: None Stratum_Keyword: Temporal Temporal_Keyword_Thesaurus: None Temporal_Keyword:
Access_Constraints None.
Use_Constraints This dataset should only be used at 1:100000 or smaller scales.
Point_of_Contact: See Data_Set_Credit Water Resources and Geologic Divisions at Cascade Volcano Observatory of the U.S. Geological Survey.
Security_Information Security_Classification_System: None Security_Classification: UNCLASSIFIED Security_Handling_Description: None
Native_Data_Set_Environment: dgux UNIX, ARC/INFO version 7.0.3
Cross_Reference Originator: Scott, William E, Iverson, Richard M, Vallance, James W., and Hildreth, Wes Publication_Date: Publication_Time: Title: Volcano hazards in the Mount Adams region, Washington Edition: Geospatial_Data_Presentation_Form: map Series_Information Series_Name: OFR 95-492 Issue_Identification: Publication_Information Publication_Place: Publisher: U.S. Geological Survey Other_Citation_Details: 11 p. Online_Linkage: Larger_Work_Citation:
Data_Quality_Information
Attribute_Accuracy Attribute_Accuracy_Report: See Logical_Consistency_Report: Chain-node topology present.Completeness_Report None.
Positional_Accuracy Horizontal_Positional_Accuracy Horizontal_Positional_Accuracy_Report: None.
Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: 51 m Horizontal_Positional_Accuracy_Explanation: Resolution as reported
Vertical_Positional_Accuracy Vertical_Positional_Accuracy_Report: None.Lineage: See Cloud_Cover Not applicable.
Spatial_Data_Organization_Information
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information SDTS_Terms_Description SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 0 SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 82 SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains' Point_and_Vector_Object_Count: 0
Spatial_Reference_Information
Horizontal_Coordinate_System_DefinitionPlanar Grid_Coordinate_System Grid_Coordinate_System_Name: Universal_Transverse_Mercator (UTM) Zone_Number: 10 Planar_Distance_Units: METERS Geodetic Model Horizontal_Datum_Name: Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6,378,206.4 Denominator_of_Flattening: 294.98
Entity_and_Attribute_Information
Detailed_Description Entity_Type Entity_Type_Label: ADMLAHAR.AAT Entity_Type_Definition: Boundaries for lahar, debris avalanche and related hazards Entity_Type_Definition_Source: see ADMLAHAR.REF info file Attribute: Attribute_Label: - Attribute_Definition: Boundaries for lahar, debris avalanche and related hazards Attribute_Definition_Source: see ADMLAHAR.REF info file Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: - Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: FNODE# Attribute_Definition: Internal number of from-node Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: TNODE# Attribute_Definition: Internal number of to-node Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: LPOLY# Attribute_Definition: Internal number of poly to left of arc Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: RPOLY# Attribute_Definition: Internal number of poly to right of arc Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: LENGTH Attribute_Definition: Length of arc in coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Positive real numbers Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: ADMLAHAR# Attribute_Definition: Internal feature number Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: ADMLAHAR-ID Attribute_Definition: User-assigned feature number Attribute_Definition_Source: User-defined Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Integer Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: LCODE Attribute_Definition: Boundary identifier for lahar, debris avalanche, and related hazards Attribute_Definition_Source: see ADMLAHAR.REF info file Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: 1-4 (whole number) Enumerated_Domain_Value_Definition Enumerated_Domain_Value_Definition_Source:Overview_Description Entity_and_Attribute_Overview Arcs were given an attribute (item LCODE) linking them to one of several hazard zones (Scott and others, 1995). These attributes, added to the arc attribute table (ADMLAHAR.AAT), are as follows: LCODE DESCRIPTION 1 Areas of hydrothermally altered, weakened rocks on summit and flanks of Mount Adams 2 Approximate boundaries of vent areas of volcanic fields 3 Extent of 6,000-yr-old Trout Lake Lahar 4 Hazard zone DL, areas subject to inundation by debris avalanches and lahars
Entity_and_Attribute_Detail_Citation: Not Available
Distribution_Information
No distribution information exists
Metadata_Reference_Section
Metadata_Date: 19960410 Metadata_Contact: sschilli Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: 19940608 Metadata_Time_Convention: Local Time Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: UNCLASSIFIED Metadata_Security_Handling_Description: None
Last modified: 96-04-11.08:50:58.Thu