Survey Description:
Survey Title:Grassberry River
GSC Open File Number:2564  C21539G  C21540G  C21541G  C21542G  C41539G  C41540G  C41541G  C41542G 
Survey Type:Total Field Magnetic
Vertical Gradient of TF
Very Low Frequency
Canadian Aeromagnetic Data Base Project Number:232
Canadian Aeromagnetic Data Base Part Number:n/a
Survey Start Date (YYYY-MM-DD):1992-02-04
Survey End Date (YYYY-MM-DD):1992-04-02
Data Acquisition:Digitally acquired
Survey Boundary:(54.00000,-103.00000)
Internal unsurveyed area: 
Flight Path Recording:Video
Survey Altitude Model:Mean terrain clearance (height above ground)
Flying Height (m):150.0
Traverse: Line Azimuth (degrees): 90
Traverse: Line Spacing (m):300
Traverse: Total Kilometres:10226.0
Control: Line Azimuth: 0
Control: Line Spacing (m):3000
Control: Total Kilometres:997.0
Diurnal Monitoring: Time Chord Length (sec):n/a
Diurnal Monitoring: Max. Deviation (nT):n/a
Magnetics: Sensor Make:GEOMETRICS,SCINTREX
Magnetics: Sensor Model:V1W2301 H8
Magnetics: Sensitivity (nT):0.0020
Magnetics: Resolution (nT):0.0100
Magnetics: System:CESIUM
Magnetics: Hardware Config:n/a
Vertical Gradiometer: Sensor Separation:2.00
Electromagnetics: Sensor Make:HERZ TOTEM 2A
Electromagnetics: Sensor Model:n/a
Electromagnetics: Hardware Config:n/a
VLF: Line Station:NAA CUTLER MAINE 24.0
Spectrometry: Sensor Make:n/a
Spectrometry: Sensor Model:n/a
Spectrometry: Recording Frequency (Hz):n/a
Spectrometry: Main Detector Volume (l):n/a
Spectrometry: Upward Detector Volume (l):n/a
Spectrometry: Sensor Height (m):n/a
Navigation Systems: Sensor:Visual
Global Positioning System

Channel Descriptions:
Name:Units:Null Value:Description:
TIMEsec500000.0Time (sometimes fiducial counter)
MAGRAWnT500000.0Raw magnetic total field (compensated, lagged, edited)
SRVMGLEVnT500000.0Magnetic Total field, levelled to survey
FIDCOUNTsec500000.0Fiducial counter
MAGRESnT500000.0Residual magnetic field
DIURNALnT500000.0Edited Diurnal / ground magnetics (main base)
VGRAWnT/m50000.0Raw vertical gradient (edited)
VGLEVnT/m50000.0Levelled vertical gradient
RALTm50000.0Radar altitude (Terrain Clearance)
BALTm50000.0Barometric altitude
VLF_LTFmV50000.0VLF-EM line total field
VLF_OTFmV50000.0VLF-EM ortho total field
VLF_LQmV50000.0VLF-EM line quadrature
VLF_OQmV50000.0VLF-EM ortho quadrature