1. LBA-Ecology Pasture Site Solar panels Tower Jungle Research Group, Atmospheric Sciences Research Center, University at Albany, SUNY Flux observations at Harvard Forest & in LBA-Ecology In Albany: D. Fitzjarrald, M. Czikowsky, R. Sakai, R. Staebler, G. Wojcik, In LBA, the team includes also O. Moraes, O. Acevedo, R. Silva from Univ. Fed. de Santa Maria, RS, Brazil. Computer

2. Tethered balloon study of CO2 and water vapor accumulation In the stable boundary layer. July 2001 (2nd phase October 2001) Balloon profiling done by the UFSM team. L. to R: Otávio Acevedo, Rodrigo. da Silva, and Osvaldo Moraes Original inhabitants of field visit Acevedo.

3. Looking east at dawn Morning of July 30, 2001, LBA-Pasture site, Santarém PA, Brazil Looking NNE, (outhouse in foreground).

4. Sequences of Pot. Temp., specific humidity, wind speed & direction. The urubu (vulture) soars at 8:52am, Verifying convective conditions. UrubuBalloon Soundings: 0611, 0618, 0625, 0632, 0645, 0655, 0717, 0804, 0838 Soundings: 2125, 2230, 2342, 0035, 0140, 0202, 0334, 0427, 0526

5. q follows T down at night CO2 begins rise at Kdn = 160 W/m2 Nocturnal fluxes negligible 30 July

6. Nocturnal eddy CO2 flux: Accumulation of CO2 (flux units) Now, we have sodar operating for long periods. Will be able to report on 15 months of continuous operations soon. [CO2] starts down only about 10am LT. July 30, 2001

11. November 2001