land magnetometer training course magnetic theory ½ day hardware (g858/ap) ¼ day software (magmap...
TRANSCRIPT
![Page 1: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/1.jpg)
Land Magnetometer Training Course
• Magnetic Theory ½ day• Hardware (G858/AP) ¼ day• Software (MagMap / MagPick) ¼ day• Hardware setup (858 and GPS) ½ day• Survey ½ day• Processing ½ day• Review ½ day
![Page 2: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/2.jpg)
Slide 2
Geometrics, Inc.Premier Manufacturer of Land Magnetometers
![Page 3: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/3.jpg)
GEOMETRICS MAGNETOMETERS-tools for exploration
Applications:• Map Geology for Mining, Oil/Gas Exploration
• Environmental Survey for Tanks, Barrels
• Locate Utilities, Pipelines
• Military Uses, UXO-EOD, De-mining
• Archaeology
• Used in Land-Marine-Airborne Surveys
Slide 3
![Page 4: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/4.jpg)
GEOMETRICS: a 30-year history of building magnetometers
• 1969: G-801 & G-803 marine and airborne proton magnetometers• 1971: G-806 land and marine proton magnetometer• 1973: G-816 portable proton magnetometer• 1977: G-826 portable digital magnetometer• 1981: G-856 portable memory magnetometer• 1983: G-811 marine magnetometer• 1991: G-822L military magnetometer• 1992: G-825 military diver-held magnetometer• 1992: G-822A airborne cesium magnetometer• 1995: G-858 portable cesium magnetometer• 1996: G-880 marine cesium magnetometer• 1997: G-823A airborne cesium magnetometer with counter• 1998: G-881 marine light-weight cesium magnetometer• 2003: G-882 marine cesium magnetometer • 2005: G-859 cesium mining magnetometer• 2009: UAV, AUV testing• 2013: G-860 land cesium magnetometer• 2014: G-862RBS cesium base station
Slide 4
![Page 5: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/5.jpg)
Magnetometer Configurations
Slide 5
![Page 6: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/6.jpg)
Slide 6
UXO Magnetometer Configurations
![Page 7: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/7.jpg)
Slide 7
Sensor Noise – Spin analysis
![Page 8: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/8.jpg)
Slide 8
Sensor Noise – Tumble Analysis
![Page 9: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/9.jpg)
Slide 9
Sensor Noise – Various Motions
![Page 10: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/10.jpg)
Slide 10
Earth’s Magnetic Field Diagram
![Page 11: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/11.jpg)
Slide 11
Earth’s Magnetic Field – Solar effectsEarth’s Magnetic Field: detection of magnetic anomalies
• Earth’s dipole magnetic field is perturbed by relatively localized contrasts in magnetization.
• Magnetization contrasts are caused by ferrous debris, vessels, pipelines, communication cables, magnetic minerals (predominantly magnetite).
• With magnetometers, one can measure the total field to detect the magnetic anomalies associated with contrasts.
• Earth’s dipole (N-S) magnetic field is produced by internal iron core dynamo effect. Charged particles from the sun cause a bow shock wave in the magnetosphere which leads to Diurnal Variations
![Page 12: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/12.jpg)
Slide 12
Earth’s Total Magnetic Field
![Page 13: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/13.jpg)
Slide 13
Earth’s Magnetic Inclination
![Page 14: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/14.jpg)
Diurnal Variations
Slide 14
![Page 15: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/15.jpg)
Slide 15
Optional Diurnal / Base Station Monitor
• Use either G-858 or G-856 Magnetometers
• Monitor Magnetic Diurnal Variations
• Magnetometer in fixed location
• Synchronized clocks
• 1-30 second sample rate
• Use for correction of survey data
• Produce more accurate magnetic maps
![Page 16: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/16.jpg)
Slide 16
![Page 17: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/17.jpg)
Slide 17
![Page 18: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/18.jpg)
Slide 18
Sensor Dead Zone Diagram
![Page 19: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/19.jpg)
Sensor Diagrams - CSAZ
Slide 19
![Page 20: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/20.jpg)
Sensor Dead Zone – 0 Degree Tilt
Slide 20
![Page 21: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/21.jpg)
Sensor Dead Zone – 45 Degree Tilt
Slide 21
![Page 22: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/22.jpg)
Results of Survey profile width
Slide 22
![Page 23: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/23.jpg)
Slide 23
Anomaly patterns as a result of Inclination
![Page 24: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/24.jpg)
Anomaly width versus depth
Slide 24
![Page 25: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/25.jpg)
Slide 25
Depth estimate
![Page 26: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/26.jpg)
Slide 26
Nomogram
![Page 27: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/27.jpg)
Anomalies of common objects
Slide 27
![Page 28: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/28.jpg)
Vertical Gradient Applications
Slide 28
![Page 29: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/29.jpg)
Slide 29
Wearing the G-858
![Page 30: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/30.jpg)
Gradiometer Transverse Layout
Slide 30
WITH agGPS-114/132 STEERINGG-858 CESIUM GRADIOMETER
![Page 31: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/31.jpg)
Slide 31
Standard Survey Acquisition
Swath Spacing
![Page 32: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/32.jpg)
Slide 32
GPS Differential Corrections
• Coast Guard Beacon
• OmniStar (On shore only without special license)
• Racal (On shore only without special license)
• RTCM
• RTK
• Known Antenna and Satellite positions and frequencies
![Page 33: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/33.jpg)
Slide 33
Data Processing Software – Magmap 2000
![Page 34: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/34.jpg)
Software capabilities
• Import G-858 magnetometer (1 or 2 sensors)
• Convert GPS Lat / Long to UTM XY coordinates
• Correct for GPS offset from Magnetometer sensor
• Perform Spike filtering
• Import G-858 or G-856 base station data
• Merge Base Station data with survey Data
• Export in Surfer or Geosoft format
Slide 34
![Page 35: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/35.jpg)
Slide 35
MagMap 2000 Destripping tool
![Page 36: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/36.jpg)
Surfer Software Capabilities
• Windows based program for professional displays
• Grid and contour G-858 data
• Display sample locations on contour map
• Various types of displays for interpretation
• Export Windows Metafile and ASCII grid files for MagAID
Slide 36
![Page 37: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/37.jpg)
Slide 37
Surfer Displays – Ft. Ross
![Page 38: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/38.jpg)
Slide 38
Stanford Base Map
![Page 39: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/39.jpg)
Slide 39
Surfer 3 dimensional display
![Page 40: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/40.jpg)
Stanford shaded relief
Slide 40
![Page 41: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/41.jpg)
Slide 41
Stanford Magnetic Contour Map
![Page 42: Land Magnetometer Training Course Magnetic Theory ½ day Hardware (G858/AP) ¼ day Software (MagMap / MagPick) ¼ day Hardware setup (858 and GPS) ½ day Survey](https://reader035.vdocuments.us/reader035/viewer/2022070410/56649ebf5503460f94bca08b/html5/thumbnails/42.jpg)
MagPick – Filtering theory
Slide 42
RAW DATA
MANUAL SMOOTHING
3 POINT RUNNING AVERAGE