Rainforest Project

Proof of Concept phaseDiagrams, Images

Proof of concept study site St. Virginia Atlantic Forest near Sao Paulo

Zoom to site

Perspective view of site

Site is atop this plateau (view NW)

Reverse perspective

View of plateau SE across Atlantic Ocean

Flux tower in forest

From St. Virginia Atlantic Forest site document

Views: Flux tower and forest

Canopy views

Humberto Rocha research sites

Humberto Rocha: Flux tower sites

Mote Network Operational Scenario

• Motes enclosure includes a transparent window

• Motes have 4 enclosure-internal and 4 external sensors

• Motes acquire 8 data values every 5 minutes– Temperature oC: Two external, one internal– Relative humidity RH: Two external, one internal– Photosynthetically Active Radiation (PAR): One internal– Total Solar Radiation (TSR): One internal

• Periodically data is recovered to a Gateway Mote– Once every 12 hours– Gateway leads to a computer where data is stored in a database.

• Motes otherwise hibernate to extend field operation lifetime

Mote and Sensors Schematic Diagram

BatteryPack

EnclosureMounting Hardware

Mote

Dessicant

)))(((Transparent plastic

Sensors: InternalSensors: External

Radio antenna

Mote Duty Cycle and Data30 second intervals

PowerConsumption

8 SensorsInternal

ExternaloC

oC

oC

RH

RH

RH

PAR

TSR

Data Acquisition:Once every 30 seconds

Mote Network With Gateway

Gateway moteComputer

+Database

Data recovery operation:Once every 12 hours