Meet the Staff



russ schnell Dr. Russell C. Schnell
(303) 497-6733
Director of Observatories & Global Network Operations
Russ is the Main point of contact for the budget and the approval of new projects. He is stationed in Boulder, Colorado (Mountain Time Zone).

John Barnes Dr. John Barnes
(808) 933-6965 x222
Station Chief / Physical Scientist
Dr. Barnes is the MLO Station Chief, and the Principle investigator for the Mauna Loa Observatory lidar (light detection and ranging) and camera lidar (clidar) programs, and the NOAA ESRL GMD Lidar group. John is also the main contact person for arranging tours of the facility and lectures about MLO.

Paul Fukumura-Sawada Paul Fukumura-Sawada
(808) 933-6965 x223
Electrical Engineer / Facility Maintenance
Paul maintains and calibrates several programs at MLO, including the ESRL Solar Radiation program, University of Denver FTIR program,  and NIWA Spectral U.V, Bromine Oxide, and Nitrogen Dioxide programs. He is also responsible for managing facility maintainence, and participates in the routine observing schedule at MLO.

Darryl Kuniyuki Darryl Kuniyuki
(808) 933-6965 x237
Station Manager / Electrical Engineer
Darryl manages the servers, network, security systems, program development, computers, and peripheral systems of MLO. He also provides technical support for MLO Staff, participates in the routine observing schedule at MLO, manages internal station operations (such as office space), sponsors JIMAR employees, assigns projects, and assists the station chief in administrative duties.

Steve Ryan Steve Ryan
(808) 933-6965 x235
Physical Scientist
Steve participates in the routine observing schedule at MLO and manages several research programs, including long term monitoring of atmospheric carbon dioxide, methane, and carbon monoxide, and flask sampling programs for NOAA and cooperative agencies at Cape Kumukahi and Mauna Loa. Steve also launches weekly ozonesonde balloons from Hilo, is the primary investigator for the ESRL Sulfur Dioxide program, and coordinated the retired VOGNET outreach program.

Aidan Colton Aidan Colton
(808) 933-6965 x233
JIMAR Chemist / Research Associate
Aidan manages, maintains and calibraties several EPA programs, including mercury analyzers, precipitation analysis, an aethalometer, a sequential fine particle sampler, an Ambient Ion Monitor, a Dichotomous Partisol sampler, and an Ion Chromatograph in the Hilo chemistry lab and at MLO and Hakalau. Aidan also assists primary observers in the routine observing schedule at MLO.

David Nardini David Nardini
(808) 933-6965 x229
JIMAR Operations / Research Associate
David is responsible for managing the ESRL surface ozone & EPA surface ozone programs, NWS meteorological data and NWS ROSA programs, the ESRL webmet system, and a SUNY flask sampler. David is also the MLO point of contact for wireless repeater equipment at the mountain site, and participates in the routine observing schedule at MLO.

Trevor Kaplan Trevor Kaplan
(808) 933-6965 x226
JIMAR Software Programmer / Research Associate
Trevor is a principal web designer and software engineer for MLO, and manages several research programs at the observatory, including the NOAA ESRL aerosol system, UH-Manoa organic carbon and nitrate filter programs, NMSU Aerosol sampler, UC-Davis IMPROVE program, and UC-San Diego aerosol sampler. He assists in lidar and clidar observations and the routine MLO observing schedule.

Preston Sato Preston Sato
(808) 933-6965 x236
JIMAR Multimedia Associate
Preston is a principle webmaster and web developer for MLO. He also restores historical photos for archiving, creates multimedia software programming for the web, and assists with the management of the web server, networks, security, computer and peripheral systems, and technical support for MLO staff. Preston also assists primary observers in the routine observing schedule at MLO.

  Nash Kobayashi
(808) 933-6965 x230
JIMAR Mechanical Technician / Research Associate