Survey Description:
Survey Title:Northern BC: A
Country:CA
Province/Territory:BC
GSC Open File Number: 9155G  9156G  9157G  9158G  9159G  9160G  9161G  9162G  9163G  9164G  9169G  9170G  9171G  9172G  9173G  9174G  9175G  9176G  9177G  9178G  9183G  9184G  9185G  9186G  9187G  9188G  9189G  9190G  9191G  9192G  9197G  9198G  9199G  9200G  9201G  9202G  9203G  9204G  9205G  9206G  9211G  9212G  9213G  9214G  9215G  9216G  9217G  9218G  9223G  9224G  9225G  9226G  9234G  9235G  9236G  9237G 
Survey Type:Total Field Magnetic
Canadian Aeromagnetic Data Base Project Number:19
Canadian Aeromagnetic Data Base Part Number:1
Survey Start Date (YYYY-MM-DD):1975-11-01
Survey End Date (YYYY-MM-DD):1978-02-28
Data Acquisition:Digitized from contour maps
Platform:Fixed-wing aircraft
Geoid:NAD27
Survey Boundary:(56.00000,-130.01700)
(56.50000,-131.50000)
(57.11670,-131.50000)
(57.11670,-131.00000)
(57.25000,-131.00000)
(57.25000,-130.50000)
(58.00000,-130.50000)
(58.00000,-128.00000)
(55.50000,-128.00000)
(55.50000,-130.16700)
(55.78330,-130.16700)
(55.91670,-130.01700)
Internal unsurveyed area: 
Flight Path Recording:Film
Survey Altitude Model:Constant barometric altitude (height above mean sea level)
Flying Height (m):2700.0
Traverse: Line Azimuth (degrees): 0
Traverse: Line Spacing (m):1609
Traverse: Total Kilometres:n/a
Control: Line Azimuth: 90
Control: Line Spacing (m):13840
Control: Total Kilometres:n/a
Diurnal Monitoring: Time Chord Length (sec):n/a
Diurnal Monitoring: Max. Deviation (nT):n/a
Magnetics: Sensor Make:SANDER
Magnetics: Sensor Model:NPM-5
Magnetics: Sensitivity (nT):0.0500
Magnetics: Resolution (nT):n/a
Magnetics: System:PROTON
Magnetics: Hardware Config:PROTON-PRECESSION
Vertical Gradiometer: Sensor Separation:n/a
Electromagnetics: Sensor Make:n/a
Electromagnetics: Sensor Model:n/a
Electromagnetics: Hardware Config:n/a
VLF: Line Station:n/a
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
Comments:Digitally flown survey, however tapes became unreadable, pub. maps digitized.
Navigation Systems: Sensor:Visual

Channel Descriptions:
Name:Units:Null Value:Description:
LATdeg5000.0Latitude
LONGdeg5000.0Longitude
MAGLEVnT500000.0Residual mag, levelled with surrounding surveys
MAGRAWnT500000.0Raw magnetic total field (compensated, lagged, edited)
MAGDISTm500000.0Continuation Distance. Flying altitude - idealized MTC altitude (SURFACE). For draping surveys.