As of the morning of November 29, lava from the eruption of the Mauna Loa volcano on Hawaii's Big Island has been confirmed to have crossed the access road to NOAA's Mauna Loa Observatory and taken out power lines to the site. These circumstances have resulted in a pause in data being collected at the observatory.
All NOAA staff from the Mauna Loa Observatory are safe.
At this point the facility is not accessible.
NOAA will continue to provide updates as the situation develops.
Media can contact: Alison Gillespie 202-713-6644 (email@example.com) or Karin Vergoth 303-632-6413 (firstname.lastname@example.org)
National Oceanic and
Atmospheric Administration (NOAA),
Earth System Research Laboratory (ESRL)
This program measures the pH, conductivity, anions and cations of local precipitation.
Rain is collected continuously in a precipitation collector. When a sensor on the collector detects rain, the cover opens and rain collects in a bucket. Every week the bucket is changed and the sample is taken to the MLO office in Hilo where the precipitation is analyzed in a chemistry laboratory. A ph Meter is used to measure pH, a conductivity bridge is used to measure conductivity, and an ion chromatograph is used to measure anions and cations.
This research follows up previous rain studies at Mauna Loa, extending the length of precipitation chemistry programs here.
This data follows established trends in that the values remain close to carbonic acid values for this island.
Again, this program follows the trends of old acid rain programs such as the NADP (National Atmospheric Deposition Program)
The NADP began this program. See also the EPA Mercury Precipitation program at Mauna Loa.