As you know, Leveloggers measure total or absolute pressure. When submerged, they record a combination of atmospheric pressure and water pressure above their sensor. Because the intent of using Leveloggers is to obtain fluctuations in water pressure only, their data must be compensated for atmospheric effects. In order to achieve this, atmospheric… Continue Reading »
Automatic Barometric Compensation Submersed Leveloggers measure total or absolute pressure (water column equivalent + barometric pressure). In order to accurately determine the true changes in water level only, barometric pressure fluctuations must be taken into account. The simplest method to accomplish this is by the use of a Barologger suspended above high water level in one well… Continue Reading »
The Greenland Ice Sheet covers 80% of the Island of Greenland – it is the largest ice mass in the Northern Hemisphere. Therefore, it should be no surprise that it is suspected to be a key contributor to current and future global sea level rise, particularly as the earth’s temperature continues to increase. Satellite evidence… Continue Reading »
Before the advent of pressure transducers with data loggers, field technicians and drilling contractors were relegated to hours, or even days on site during conventional pumping tests, continuously monitoring water level fluctuations in a vast array of observation wells. Often requiring running from well to well, readings were taken by hand with Water Level Meters. This was… Continue Reading »
The Solinst Levelogger is based on an absolute pressure transducer. This means the Levelogger senses and presents all the pressure it is under, both water pressure (hydraulic head) and air pressure (barometric or atmospheric pressure). However, most users are interested in just the water level or hydraulic head, so Solinst offers a separate logger, the… Continue Reading »
