Located in the lower foothills of the Sierra Nevada Mountains on privately owned land, the Vaira Ranch site is classified as a grassland dominated by C3 annual grasses. Managed by local rancher, Fran Vaira, brush has been periodically removed for cattle grazing. Species include a variety of grasses and herbs, including purple false brome, smooth cat's ear, and rose clover. Growing season is confined to the wet season only, typically from October to early May.
Installed soil co2 batteries, fixed air pressure, standard fieldwork
Equipment installed at the site:more details
Biomet LED sensor LED-NDVI
Campbell Sci. Multiplexer AM16/32
Campbell Sci. Multiplexer AM25T
Campbell Sci. Data Logger CR1000
Campbell Sci. Data Logger CR10X
Campbell Sci. Water Level CS451
Delta-T Diffuse Radiation BF3
Delta-T Soil Moisture Probe ML2x
Environmental Sensors Inc. Moisture Point PRB-K Type #8
Fabricated Battery Bank BB-Fab
Forerunner-Eosense CO2 probe GP-001
Gill Interface 1189PC
Gill Anemometer WM 1590
Hukseflux Heat Flux Plate HFP01
Kipp & Zonen Net Radiometer CNR1
Kipp & Zonen PAR Sensor PAR-LITE
Licor Gas Analyzer LI-7500A
Licor Interface LI-7550
StarDot Camera NULL
TE Technology Heat Flux Plate HP-127-1.0-1.3-71P
Texas Electronics Precipitation TR-525I-R1
Vaisala CO2 probe GMM222
Vaisala CO2 probe GMP222
Vaisala CO2 probe GMT222
Vaisala RH & Temp HMP45AC
Vaisala Barometer PTB101B
Met data collected at Vaira
Soil moisture data from the Vaira Moisture Point probes.
Half hour averages of the 10Hz flux data.
Soil CO2 data collected from nine Vaisala CO2 probes in three profiles.
Originally the soil sensors (TC, sm, SHF) were on a CR10x. 4-way radiometer and diffuse PAR were added later. All sensors were moved to CR23x on 2004-07-25
Monitoring of the pond level.
This material is based upon work supported by the National Science Foundation and US Department of Energy. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the supporters.