The most accurate method of obtaining changes in water level is to compensate for atmospheric pressure using a Barologger. This avoids any time lag in the compensation figures and any errors introduced due to moisture buildup, kinking or damage to vented cable. It can also be useful to have recorded barometric information to help determine barometric lag and/or any damping effect from the surface to the monitored aquifer.

The Barometric Compensation Wizard in the Levelogger Windows software simplifies the adjustment of the level measurements for barometric pressure changes, by using the synchronized data from all Leveloggers on site and the site Barologger.

The overall results give more reliable, highly accurate level data than that obtained when using high maintenance and expensive vented cable.