This page shows the calibration history for the SLU station SCMO. For each date and component, the amplitude and phase spectrum of the velocity sensitivity are presented as well as a simulated system response to an step in the INPUT units using the response obtained from the RESP file (obtained using the command rdseed -f dataless -R) together with evalresp are given in the first three figures in a row. The last two figures provide a plot of the sensitivity and simulated step response using the polezero file obtained using the command rdseed -f dataless -p. The purpose of the step response is to verify the polarity of the system.
Since modern broadband sensors have a flat response to ground velocity in the passband and since accelerometers have a flat response to acceleration, the plots give velocity and accelerations sensitivity, respectively, for the two types of instruments. In using the pole-zero files we carefully examine the input units to create the proper plot.
As distributed in the SEED response files available by ftp, ground motion up, to the north and to the east corresponds to positive numbers.
The time-date stamp for the seed file is the following:
458752 Jan 7 2011
NET | STATION | LOC | COMP | START | END | PEAK |
NM | SCMO | BNE | 2011,001,00:00:00.0000 | 2599,365,23:59:59 | Peak Sensitivity 1.2935e+05 Counts/METER/S**2 at 21.94 Hz | |
NM | SCMO | BNN | 2011,001,00:00:00.0000 | 2599,365,23:59:59 | Peak Sensitivity 1.2993e+05 Counts/METER/S**2 at 21.93 Hz | |
NM | SCMO | BNZ | 2011,001,00:00:00.0000 | 2599,365,23:59:59 | Peak Sensitivity 1.2905e+05 Counts/METER/S**2 at 21.94 Hz | |
NM | SCMO | ENE | 2011,001,00:00:00.0000 | 2599,365,23:59:59 | Peak Sensitivity 1.3110e+05 Counts/METER/S/S at 49.98 Hz | |
NM | SCMO | ENN | 2011,001,00:00:00.0000 | 2599,365,23:59:59 | Peak Sensitivity 1.3170e+05 Counts/METER/S/S at 49.93 Hz | |
NM | SCMO | ENZ | 2011,001,00:00:00.0000 | 2599,365,23:59:59 | Peak Sensitivity 1.3080e+05 Counts/METER/S/S at 49.95 Hz | |
NM | SCMO | HNE | 2011,001,00:00:00.0000 | 2599,365,23:59:59 | Peak Sensitivity 1.3095e+05 Counts/METER/S**2 at 43.88 Hz | |
NM | SCMO | HNN | 2011,001,00:00:00.0000 | 2599,365,23:59:59 | Peak Sensitivity 1.3155e+05 Counts/METER/S**2 at 43.89 Hz | |
NM | SCMO | HNZ | 2011,001,00:00:00.0000 | 2599,365,23:59:59 | Peak Sensitivity 1.3065e+05 Counts/METER/S**2 at 43.88 Hz |
NET STA LC CMP ON_DATE OFF_DATE LAT LON ELV DIP AZ RATE RESPONSE_FILE POLE_ZERO_FILE NM SCMO ** BNE 2011,001,00:00:00.0000 2599,365,23:59:59 38.761800 -90.641300 152.4 0.0 90.0 50 RESP.NM.SCMO..BNE SAC_PZs_NM_SCMO_BNE__2011.001.00.00.00.0000_2599.365.23.59.59.99999 NM SCMO ** BNN 2011,001,00:00:00.0000 2599,365,23:59:59 38.761800 -90.641300 152.4 0.0 0.0 50 RESP.NM.SCMO..BNN SAC_PZs_NM_SCMO_BNN__2011.001.00.00.00.0000_2599.365.23.59.59.99999 NM SCMO ** BNZ 2011,001,00:00:00.0000 2599,365,23:59:59 38.761800 -90.641300 152.4 -90.0 0.0 50 RESP.NM.SCMO..BNZ SAC_PZs_NM_SCMO_BNZ__2011.001.00.00.00.0000_2599.365.23.59.59.99999 NM SCMO ** ENE 2011,001,00:00:00.0000 2599,365,23:59:59 38.761800 -90.641300 152.4 0.0 90.0 200 RESP.NM.SCMO..ENE SAC_PZs_NM_SCMO_ENE__2011.001.00.00.00.0000_2599.365.23.59.59.99999 NM SCMO ** ENN 2011,001,00:00:00.0000 2599,365,23:59:59 38.761800 -90.641300 152.4 0.0 0.0 200 RESP.NM.SCMO..ENN SAC_PZs_NM_SCMO_ENN__2011.001.00.00.00.0000_2599.365.23.59.59.99999 NM SCMO ** ENZ 2011,001,00:00:00.0000 2599,365,23:59:59 38.761800 -90.641300 152.4 -90.0 0.0 200 RESP.NM.SCMO..ENZ SAC_PZs_NM_SCMO_ENZ__2011.001.00.00.00.0000_2599.365.23.59.59.99999 NM SCMO ** HNE 2011,001,00:00:00.0000 2599,365,23:59:59 38.761800 -90.641300 152.4 0.0 90.0 100 RESP.NM.SCMO..HNE SAC_PZs_NM_SCMO_HNE__2011.001.00.00.00.0000_2599.365.23.59.59.99999 NM SCMO ** HNN 2011,001,00:00:00.0000 2599,365,23:59:59 38.761800 -90.641300 152.4 0.0 0.0 100 RESP.NM.SCMO..HNN SAC_PZs_NM_SCMO_HNN__2011.001.00.00.00.0000_2599.365.23.59.59.99999 NM SCMO ** HNZ 2011,001,00:00:00.0000 2599,365,23:59:59 38.761800 -90.641300 152.4 -90.0 0.0 100 RESP.NM.SCMO..HNZ SAC_PZs_NM_SCMO_HNZ__2011.001.00.00.00.0000_2599.365.23.59.59.99999
Created Mon Jan 27 19:35:33 UTC 2020