TY - JOUR TI - In-canopy gradients, composition, sources, and optical properties of aerosol over the Amazon forest PY - 2003 AU - Guyon, P AU - Graham, B AU - Roberts, G C AU - Mayol Bracero, O L AU - Maenhaut, W AU - Artaxo Netto, Paulo Eduardo AU - Andreae, M O T2 - Journal of Gephysical Research-Atmospheres SN - 0148-0227 DO - 10.1029/2003jd003465 UR - https://doi.org/10.1029/2003jd003465 PP - Washington, DC ER -