Lateral Variations in Upper Mantle Discontinuities beneath Northeast China Revealed by Seismic Ambient Noise

<div>Data description:</div> <div>&nbsp;</div> <div>CCdata.zip:</div> <div>Re-sampling Cross-Correlation functions (4Hz) which contain three seismic arrays.</div> <div>CEA contains HL, JL, LN and NM networks.&nbsp;</div> <div>NECESSarray contains YP network. NECsaids contains DB network.&nbsp;</div> <div>All the stations are located east of 122E, between 41N and 46N.&nbsp;</div> <div>The cross-correlations are used to retrieved body-wave reflections from mantle transition zone discontinuities.</div> <div>&nbsp;</div> <div>Syntheticdata.zip:</div> <div>contains four parts: rawdata1d, rawdata2d, stackedwaveform-2d, and compare-1d</div> <div>&nbsp;</div> <div>rawdata1d:&nbsp;</div> <div>raw synthetic waveforms calculated by Qseis (Wang, 1999) after data-processings.</div> <div>H is increased from 0 to 30 km.&nbsp;</div> <div>The distance is 100 km. &nbsp;</div> <div>&nbsp;</div> <div>rawdata2d:&nbsp;</div> <div>raw synthetic waveforms calculated by SPECFEM2D (Tromp et al., 2008).</div> <div>Three models with depressed d660 (model 1-3) and with a slab on the d660 (model 4). &nbsp;</div> <div>100 receiver stations (surface), from 305 km to 1295 km in 10 km increments.</div> <div>49 vertical single-force sources (surface), from 320 km to 1280 km in 20 km increments&nbsp;</div> <div>&nbsp;</div> <div>stackedwaveform-2d:</div> <div>The final depth results with different models.</div> <div>&nbsp;</div> <div>compare-1d:</div> <div>The waveforms used to compare the rf and cc.</div> <div>&nbsp;</div> <div>Code:</div> <div>These codes can be used to make the figures of synthetic and NCFs results.&nbsp;</div> <div>&nbsp;</div> <div>&nbsp;</div> <div>NECsaidsDescription.docx:</div> <div>Detailed description about the NECsaids project conducted in northeast China from October, 2010 to September, 2017.</div> <div>&nbsp;</div> <div>station_loc.txt:</div> <div>Coordinate file (station, longitude, latitude) of the stations.</div> <div>&nbsp;</div> <div>Reference</div> <div>Wang, R. (1999). A simple orthonormalization method for stable and efficient computation of Green's functions. Bulletin of the Seismological Society of America, 89(3), 733-741. doi: 10.1785/BSSA0890030733</div> <div>Tromp, J., Komatitsch, D. and Liu, Q. Y. (2008). Spectral-element and adjoint methods in seismology. Commun Comput Phys 3, 1-32.</div>