+----------------------------------------------------------------------------+ | Noise models for strainmeter data | +------------------+-------------------------------------+-------------------+ | Site | full sampling | 3 hour data | | ID component | sample interval Po index | Po index | | | minutes ppm/yr^n/4 n | ppm/yr^n/4 n | +------------------+-------------------------------------+-------------------+ | DL volume | 10 105 1.86 | 247 1.77 | | DL areal | 18 206 1.83 | 259 1.96 | | DL gamma1 | 18 124 1.96 | 64 1.99 | | DL gamma2 | 18 35 1.10 | 77 2.07 | | FL volume | 10 280 2.33 | 183 1.65 | | FL areal | 30 187 1.31 | 240 1.66 | | FL gamma1 | 30 458 1.42 | 88 1.72 | | FL gamma2 | 30 366 1.74 | 261 1.79 | | VC volume | 10 447 2.10 | 309 1.81 | | JC volume | 10 59 1.47 | 178 1.54 | | RH volume | 10 52 1.53 | 296 1.79 | +------------------+-------------------------------------+-------------------+ White noise assumed to be 0.5NS. NS is nano-strain or 0.001ppm.