Identification_Information: Citation: Citation_Information: Originator: Goldak Airborne Surveys Publication_Date: 2015 Title: chico_mag Geospatial_Data_Presentation_Form: point digital data Online_Linkage: Larger_Work_Citation: Citation_Information: Originator: V.E. Langenheim Publication_Date: 2015 Title: Aeromagnetic survey map of the Sacramento Valley, California Geospatial_Data_Presentation_Form: point digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2015-1186 Publication_Information: Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Online_Linkage: http://dx.doi.org/10.3133/ofr20151186 Description: Abstract: High resolution aeromagnetic data collected in the Sacramento Valley, California Purpose: Aeromagnetic data were collected within the region to identify magnetic features as a basis for geophysical interpretations. Supplemental_Information: High resolution aeromagnetic data were collected by Goldak Airborne Surveys using Geometrics G-822A cesium magnetometer for the airborne measurements and two GEM System Overhauser GSM-19 magnetometers for the ground measurements. Lines were flown in a northeast-southwest direction and were spaced 800m apart. Northwest-southeast tie lines were also flown spaced 8000 m apart. The survey was flown at a nominal 244m above topography. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2014 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.7298 East_Bounding_Coordinate: -121.5235 North_Bounding_Coordinate: 40.55924 South_Bounding_Coordinate: 39.04815 Keywords: Theme: Theme_Keyword: magnetics Theme_Keyword: magnetic anomaly Theme_Keyword_Thesaurus: USGS Thesaurus Place: Place_Keyword: Sacramento Valley Place_Keyword: Chico, California Place_Keyword: Willows, California Place_Keyword: Orland, California Place_Keyword_Thesaurus: GNIS Access_Constraints: none Use_Constraints: Uses of this digital data should not violate the spatial or attribute resolution of the data. Although the digital form of the data stores location and attribute values to several decimals of precision, the data is subject to the accuracy and precision inherent in the data due to data collection and processing limitations. Where this data is used in combination with other data, the precision and accuracy of the resulting dataset is limited by the precision and accuracy of the input datasets. Acknowledgement of the U.S. Geological Survey is appreciated for products derived from these data. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Victoria Langenheim Contact_Organization: U.S. Geological Survey Contact_Position: geophysicist Contact_Address: Address_Type: physical address Address: 345 Middlefield Rd. City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Contact_Voice_Telephone: 650-329-5313 Contact_Electronic_Mail_Address: zulanger@usgs.gov Native_Data_Set_Environment: Geosoft Oasis Montaj Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: magnetic field values are reported to 0.01 nT Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: GPS accuracy should be within 1 meter Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: GPS accuracy should be within 1 meter Logical_Consistency_Report: see report Completeness_Report: see report Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Goldak Airborne Surveys Publication_Date: 2015 Title: Technical Report on a Fixed Wing Aeromagnetic Survey: USGS Requisition No. 0040151564, Chico blocks, California, 2015 Geospatial_Data_Presentation_Form: vector digital data Type_of_Source_Media: disc Source_Time_Period_of_Content: Source_Currentness_Reference: ground condition at time collected Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20141126 Ending_Date: 20141227 Source_Citation_Abbreviation: Goldak Airborne Surveys, Project Report Aeromagnetic Survey, Chico, California, 2015 Source_Contribution: see report Process_Step: Process_Description: Refer to Project Report by Goldak Airborne Surveys Process_Date: 2015 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 1341095 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00001 Longitude_Resolution: 0.00001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 298.257 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: North American Vertical Datum of 1988 Altitude_Distance_Units: meters Altitude_Encoding_Method: attribute values Altitude_Resolution: 0.1 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: chico_mag Entity_Type_Definition: ASCII Entity_Type_Definition_Source: Aeromagnetic data Attribute: Attribute_Label: Line Attribute_Definition: line number Attribute_Definition_Source: Goldak Airborne Surveys Attribute: Attribute_Label: lon_27 Attribute_Definition: longitude coordinate (NAD27) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 1 m Attribute: Attribute_Label: lat_27 Attribute_Definition: latitude coordinate (NAD27) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 1 m Attribute: Attribute_Label: X_84 Attribute_Definition: x UTM zone 10 coordinate (WGS84) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 1 m Attribute: Attribute_Label: Y_84 Attribute_Definition: y UTM zone 10 coordinate (WGS84) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 1 m Attribute: Attribute_Label: date Attribute_Definition: date (year month day) (YY/MM/DD) Attribute_Definition_Source: Goldak Airborne Surveys Attribute: Attribute_Label: fiducial Attribute_Definition: fiducial time Attribute_Definition_Source: Goldak Airborne Surveys Attribute: Attribute_Label: radar_alt Attribute_Definition: radar altimeter (meters above ground level), corrected for lag Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 1-3 m Attribute: Attribute_Label: cbaro Attribute_Definition: barometric altimeter (meters above mean sea level), corrected for drift Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 1 m Attribute: Attribute_Label: dgpsz Attribute_Definition: Differentially corrected GPS altitude (meters above mean sea level) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 1 m Attribute: Attribute_Label: basemag1 Attribute_Definition: ground base station 1 (nT) located latitude 39 31'01.3" and longitude -122 13'0" Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.01 nT Attribute: Attribute_Label: basemag1_ed Attribute_Definition: ground base station 1, edited for cultural disturbance (nT) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.01 nT Attribute: Attribute_Label: basemag2 Attribute_Definition: ground base station 2 (nT) located latitude 39 30'35.3" and longitude -122 12'47.9" Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.01 nT Attribute: Attribute_Label: basemag2_ed Attribute_Definition: ground base station 2, edited for cultural disturbance (nT) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.01 nT Attribute: Attribute_Label: mbu Attribute_Definition: raw total field magnetic (nT) (uncompensated; lower tail) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.005 nT Attribute: Attribute_Label: mbc Attribute_Definition: compensated raw total field magnetic(nT) (lower tail) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.01 nT Attribute: Attribute_Label: mbc_lag Attribute_Definition: lagged, compensated total field magnetic (nT) (lower tail) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.01 nT Attribute: Attribute_Label: mbc_dc_ed Attribute_Definition: diurnal corrected total field magnetic (nT) from basemag1_ed Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.01 nT Attribute: Attribute_Label: maglev Attribute_Definition: tie line leveled total field magnetic (nT) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.01 nT Attribute: Attribute_Label: igrf2010 Attribute_Definition: IGRF value, 2010 Model, date 2014/12/12 and measured altitude (nT) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.01 nT Attribute: Attribute_Label: mag_level_igrf Attribute_Definition: final levelled residual magnetic (nT) (mag_level minus igrf2010) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.01 nT Attribute: Attribute_Label: vmi Attribute_Definition: Longitudinal vector magnetic field (nT) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.01 nT Attribute: Attribute_Label: vmv Attribute_Definition: Vertical vector magnetic field (nT) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.01 nT Attribute: Attribute_Label: vmt Attribute_Definition: Transvers vector magnetic field (nT) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.01 nT Attribute: Attribute_Label: vmtf Attribute_Definition: Vector magnetic total field (nT) Attribute_Definition_Source: Goldak Airborne Surveys Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: 0.01 nT Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Victoria Langenheim Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: 345 Middlefield Rd, MS 989 City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Contact_Voice_Telephone: 650-329-5313 Contact_Electronic_Mail_Address: zulanger@usgs.gov Resource_Description: Downloadable Data 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: ASCII Transfer_Size: 383600000 Network_Resource_Name: http://dx.doi.org/10.3133/ofr20151186 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_address: Network_resource_name: http://dx.doi.org/10.3133/ofr20151186 Fees: None Metadata_Reference_Information: Metadata_Date: 20150517 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Victoria Langenheim Contact_Organization: U.S. Geological Survey Contact_Position: geophysicist Contact_Address: Address_Type: mailing and physical address Address: 345 Middlefield Rd. City: Menlo Park State_or_Province: CA Postal_Code: 94025 Contact_Voice_Telephone: 650-329-5313 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile