Data from "Direct measurement of subsurface mass change using the variable baseline gravity gradient method"
Summary
Data from Kennedy, J., Ferré, T.P.A., Güntner, A., Abe, M., and Creutzfeldt, B., 2014, Direct measurement of subsurface mass change using the variable baseline gravity gradient method: Geophysical Research Letters, v. 41, no. 8, p. 2827–2834.doi: 10.1002/2014GL059673 Collected using two iGrav superconducting gravimeters located about 15 m and 30 m from the edge of a 83,000 m^2 infiltration basin. Data are in tsoft format, with the channels: iGrav6 residual: [3]*(-914.6)-[6]-[4]*(-3.6902) iGrav4 residual: [1]*(-932.54)-[5]-[2]*(-3.263) Local tide model - BTG: Local tide model fitted using BAYTAP-G and data from the respective gravimeter. Residual - sc: Stage-corrected residual, with the gravitational attraction of water ponded [...]
Summary
Data from
Kennedy, J., Ferré, T.P.A., Güntner, A., Abe, M., and Creutzfeldt, B., 2014, Direct measurement of subsurface mass change using the variable baseline gravity gradient method: Geophysical Research Letters, v. 41, no. 8, p. 2827–2834.doi: 10.1002/2014GL059673
Collected using two iGrav superconducting gravimeters located about 15 m and 30 m from the edge of a 83,000 m^2 infiltration basin.
Local tide model - BTG: Local tide model fitted using BAYTAP-G and data from the respective gravimeter.
Residual - sc: Stage-corrected residual, with the gravitational attraction of water ponded in each recharge basin removed. [Residual channel - (each of the sc rbxxx channels)]
stage: water level above bottom of the recharge basin.
inf flux: infiltration flux calculated from basin volumetric inflow rate and a stage/volume relationship derived from lidar data.
Variable-baseline gradient
Residual: [iGrav004 residual * (-932.54) - iGrav006 residual * (-914.6)]
Residual (corr removed): Residual channel with spike and gap corrections written to file.
Residual - sc: Residual channel corrected for water ponded in each recharge basin.
Res - FFT_LP - 0.5 cpd: Low-pass filtered channel, 0.5 cut-off, 0.5 bandwidth.
Res - FFT_LP - 0.5 cpd - dt: Time derivative of above channel.
Res - Butter_LP - 0.5 cpd: Low-pass Butterworth filtered channel, 0.5 cut-off, 0.5 bandwidth.
Res - Butter_LP - 0.5 cpd - dt: Time derivative of above channel.
