HR: 1340h
AN: B53A-0977    [Abstracts]
TI: Establishing a Multi-spatial Wireless Sensor Network to Monitor Nitrate Concentrations in Soil Moisture
AU: * Haux, E
EM: ehaux@eng.ucmerced.edu
AF: School of Engineering, University of California, Merced, P.O. Box 2039, Merced, CA 95344 United States
AU: Busek, N
EM: ndbusek@lecs.cs.ucla.edu
AF: Department of Computer Science, UCLA, 4732 Boelter Hall, Los Angeles, CA 90095 United States
AU: Park, Y
EM: yp32@ucla.edu
AF: Department of Civil & Environmental Engineering, UCLA, 5731/5732 Boelter Hall Box 159310, Los Angeles, CA 90095 United States
AU: Estrin, D
EM: destrin@cs.ucla.edu
AF: Department of Computer Science, UCLA, 4732 Boelter Hall, Los Angeles, CA 90095 United States
AU: Harmon, T C
EM: tharmon@ucmerced.edu
AF: School of Engineering, University of California, Merced, P.O. Box 2039, Merced, CA 95344 United States
AB: The use of reclaimed wastewater for irrigation in agriculture can be a significant source of nutrients, in particular nitrogen species, but its use raises concern for groundwater, riparian, and water quality. A 'smart' technology would have the ability to measure wastewater nutrients as they enter the irrigation system, monitor their transport in situ and optimally control inputs with little human intervention, all in real-time. Soil heterogeneity and economic issues require, however, a balance between cost and the spatial and temporal scales of the monitoring effort. Therefore, a wireless and embedded sensor network, deployed in the soil vertically across the horizon, is capable of collecting, processing, and transmitting sensor data. The network consists of several networked nodes or 'pylons', each outfitted with an array of sensors measuring humidity, temperature, precipitation, soil moisture, and aqueous nitrate concentrations. Individual sensor arrays are controlled by a MICA2 mote (Crossbow Technology Inc., San Jose, CA) programmed with TinyOS (University of California, Berkeley, CA) and a Stargate (Crossbow Technology Inc., San Jose, CA) base-station capable of GPRS for data transmission. Results are reported for the construction and testing of a prototypical pylon at the benchtop and in the field.
DE: 0400 Biogeosciences
SC: Biogeosciences [B]
MN: 2004 AGU Fall Meeting