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 alsoO. Moraes, O. Acevedo, R. Silva from Univ. Fed. de Santa Maria, RS, Brazil.

Computer

Tethered balloon study of CO2 and water vapor accumulationIn the stable boundary layer.July 2001 (2nd phase October 2001)

Balloon profiling done by theUFSM team.

L. to R: Otávio Acevedo, Rodrigo. da Silva,and Osvaldo Moraes Original inhabitants of field

visit Acevedo.

Looking east at dawn

Morning of July 30, 2001, LBA-Pasture site, Santarém PA, Brazil

Looking NNE, (outhouse in foreground).

Sequences of Pot. Temp.,specific humidity, wind speed &direction.

The urubu (vulture) soars at 8:52am,Verifying convective conditions.

Urubu Balloon

Soundings: 0611, 0618, 0625, 0632, 0645, 0655, 0717, 0804, 0838

Soundings: 2125, 2230, 2342, 0035, 0140, 0202, 0334, 0427, 0526

q follows T down at night

CO2 begins rise at Kdn = 160 W/m2

Nocturnal fluxesnegligible

30 July

Nocturnal eddy CO2 flux:

Accumulation of CO2(flux units)

Now, we have sodaroperating for long periods.Will be able to report on15 months of continuousoperations soon.

[CO2] starts down only about 10am LT.

July 30, 2001

November 2001