From LFA

Sitios: ZF2 - Rebio Cuieras - TT34

This forest site is located 60 km northwest to Manaus urban area, at the ZF2 Ecological Station (2.59S, 60.21W, 110 m asl), within the INPA (Brazilian National Institute for Amazonian Research) Cuieiras forest reserve. There, from the point of view of aerosol properties, the wet season corresponds to the period Jan–Jun, whereas the dry season corresponds to Jul– Dec [Rizzo et al., 2013].

No biomass burning occurs in the reservation or close to the site. During the wet season, the prevailing trade winds blow over vast expanses of intact tropical forest before reaching the measurement tower, thus representative of near-pristine conditions. However, during part of the year, the site is affected by regional transport of pollutants, most of it from long-range transported biomass burning emissions [Artaxo et al., 2013].

All measurements are taken under dry conditions (RH 30–40%) by use of an automatic diffusion dryer in the sampling line[]. An inlet with 50% aerodynamic cut-off of 7 um is used for sampling. Inlet lines run from the measurement level (39 m agl, about 10 m above the canopy height) to an air-conditioned container at ground level. These observations are taken at the TT34 tower. Housing for the researchers and a diesel generator that provide the power supply were located respectively 0.33 km and 0.72 km to the west of the sampling site (downwind). A detailed description of the ZF2 TT34 tower measurement site and surrounding area can be found in Martin et al [2010].

Detail of the TT34 tower at ZF2 (left) and measurement station (right) are shown.

Instruments

Measurements at this site varied from time to time. It generally includes:

Instrumentation running at ZF2 is shown shown.

References

L. V. Rizzo, P. Artaxo, T. Muller, A. Wiedensohler, M. Paix~ao, G. G. Cirino, A. Arana, E. Swietlicki, P. Roldin, E. O. Fors, K. T. Wiedemann, L. S. M. Leal and M. Kulmala, Long term measurements of aerosol optical properties at a primary forest site in Amazonia, Atmos. Chem. Phys., 2013, 13, 1–23

Paulo Artaxo, Luciana V. Rizzo, Joel F. Brito, Henrique M. J. Barbosa, Andrea Arana, Elisa T. Sena, Glauber G. Cirino, Wanderlei Bastos, Scot T. Martin and Meinrat O. Andrea: Atmospheric aerosols in Amazonia and land use change: from natural biogenic to biomass burning conditions. Faraday Discussions 165 (2013) doi: 10.1039/c3fd00052d

S. T. Martin, M. O. Andreae, D. Althausen, P. Artaxo, H. Baars, S. Borrmann, Q. Chen, D. K. Farmer, A. Guenther, S. S. Gunthe, J. L. Jimenez, T. Karl, K. Longo, A. Manzi, T. Pauliquevis, M. D. Petters, A. J. Prenni, U. P ̈oschl, L. V. Rizzo, J. Schneider, J. N. Smith, E. Swietlicki, J. Tota, J. Wang, A. Wiedensohler and S. R. Zorn, An overview of the Amazonian Aerosol Characterization Experiment 2008 (AMAZE-08), Atmos. Chem. Phys., 2010, 10, 11415-11438.

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