Amazon Tall Tower Observatory, Uatumã Sustainable Development Reserve

The Amazon Tall Tower Observatory or ATTO is a scientific research facility in the Amazon rainforest of Brazil. Infrastructure includes a 325 metres tall tower that extends far above the forest canopy and two smaller towers that allow researchers to collect samples from the soil surface to above the forest canopy. Additionally, there are container-labs, a base camp and nearby sites for studying vegetation and soil processes. The tall research tower is one meter taller than the Eiffel Tower and is currently the tallest structure in South America. The two further towers are 80 metres in height. All towers are equipped with a broad range of instruments to measure chemical and physical properties of the atmosphere, such as greenhouse gas concentrations, aerosols and meteorological data. ()