slv.measurements.mobile.obs.DROPOUT_CH4_PPM

slv.measurements.mobile.obs.DROPOUT_CH4_PPM: float = 1.7

the global background is ~1.85-2.0 ppm and the pipeline’s valid range starts at 1.70, so the shoulder of a dropout passes QC. Measured bias of the surviving rows: -0.29 ppm one minute out, -0.22 within 8 min, gone by 15.

Type:

An atmosphere row below this (ppm) is a CH4 laser dropout, not air