Vog appearing in the Saddle between Mauna Loa & Mauna Kea, Hawaii (Photo courtesy of Forest M. Mims III)


NOAA logo National Oceanic and Atmospheric Administration (NOAA), Earth System Research Laboratory (ESRL), Office of Oceanic and Atmospheric Research (OAR)
HPA logo Hawaii Preparatory Academy
DOE logo Hawaii public schools, Department of Education (DOE)

What does this program measure?

The project measured condensation nuclei concentration in particles per cc.

How does this program work?

The instruments involved, a garden counter and sunphotometer, were designed by Steven Ryan and constructed by high school students and teachers in 2001. Measurements were made by six high schools around the Big Island plus downtown Hilo. These locations are indicated in the diagrams below.

Locations of VOGNET instruments on Hawaii
Locations of VOGNET instruments on Hawaii

Why is this research important?

VOGNET was an educational outreach program for high schools. It contributed to long term monitoring of volcanic pollution around the island. The data can be used in studies of health effects of volcanic pollution.

Are there any trends in the data?

No trends. Pollution levels vary with changes in meteorological conditions and volcanic emission rates.

How does this program fit into the big picture?

What is it's role in global climate change?

It doesn't.

Comments and References

VOGNET was a NOAA Earth System Research Laboratory (ESRL) - Global Monitoring Division, Mauna Loa Observatory community outreach program. It is no longer active.

Lead Investigator(s):

Steven Ryan
808-933-6965 (x235)

MLO Contact(s):

Steven Ryan
808-933-6965 (x235)

Web Site(s)


Date Started

Started in 1996
Continuous 2002-2005
Retired in 2005

Related Programs

Volcanic Activity

Hawaii's Kilauea Volcano, Pu'u O'o Vent
Volcanic outgassing of Kilauea
Student with Condensation Nuclei Counter
Student with Condensation Nuclei Counter