QC Processing

16.4698°N, 102.7905°E
12 Feb 2026 · 16h 48m
Needs Review
All Ch
Ex
Ey
Hx
Hy
Hz

Time Series Viewer

Fs: 100 Hz · 6,048,000 samples
Pan Zoom Select Measure 1 min 10 min 1 hr Full Reset Zoom
Ex (Electric N-S)
Mean: 0.3 mV RMS: 11.8 mV Max: 42.5 mV OK
Ey (Electric E-W) — DC Offset Detected
Mean: 15.2 mV RMS: 18.4 mV Max: 53.1 mV DC Offset
DC: +15.2 mV
Hx (Magnetic N-S)
Mean: 0.0 mV RMS: 82.4 mV Max: 312 mV OK
Hy (Magnetic E-W)
Mean: 0.1 mV RMS: 76.1 mV Max: 288 mV OK
Hz (Magnetic Vertical)
Mean: 0.0 mV RMS: 38.7 mV Max: 145 mV OK
08:00:0010:0012:0014:0016:0018:0020:0022:0000:00:00+1

Apparent Resistivity

xy & yx modes
Apparent Resistivity (Ohm.m) Period (s) 10^4 10^3 10^2 10^1 10^0 10^-3 10^-2 10^-1 10^0 10^1 rho_xy rho_yx

Phase

xy & yx modes
Phase (degrees) Period (s) 90 67.5 45 22.5 0 10^-3 10^-2 10^-1 10^0 10^1 phi_xy phi_yx

Coherence Analysis

Channel cross-correlation (band-averaged)
Ex-Hx0.94
Ex-Hy0.91
Ey-Hx0.72
Ey-Hy0.78
Hz-Hx0.88
Hz-Hy0.86
Threshold: 0.80 · Ey coherence below threshold — possible DC offset contamination

QC Status

Review
✓
All channels present
5/5 channels have signal
!
DC Offset Check
Ey: mean = 15.2 mV (threshold: 5 mV)
✓
No data gaps
Continuous recording verified
✓
Duration check
16h 48m > 16h minimum
✓
No saturation
All channels within ADC range
✓
GPS sync
Timestamps valid, drift < 1 ms
!
Coherence check
Ey-Hx: 0.72, Ey-Hy: 0.78 (threshold: 0.80)
✓
Noise level
All channels below site noise model

QC Decision

Station Info

StationDGR-NE-003
Location16.4698°N, 102.7905°E
OperatorJob
LoggerKMS-820 (0062)
CoilsLEMI-120
ElectrodesLEMI-701
DipolesEx=100m, Ey=100m