Amazon Tall Tower Observatory
Tower Research tower monitoring Amazon rainforest atmosphere
Research tower in Brazil’s Amazonas used by German-Brazilian teams to study atmosphere and forest-air exchanges. Scientists, students and specialised visitors arrange guided tours and canopy research access.
The Amazon Tall Tower Observatory (ATTO) is a long-term atmospheric research facility in the central Amazon region of Brazil, built to study exchanges of greenhouse gases and energy between the rainforest and the atmosphere. The site includes a 325-metre instrumented tower and supporting laboratory and measurement huts.
ATTO is a scientific installation rather than a tourist site, with tall-tower instrumentation, ground-based sampling labs and shelter buildings for researchers. The tower supports continuous, high-precision measurements of CO2, methane, aerosols and meteorological parameters at multiple heights above the canopy.
The observatory is the result of a multi-institutional collaboration between German and Brazilian research organisations and universities and was developed to provide sustained, in situ observations of the Amazon atmosphere. Instrument installation and commissioning took place in the 2010s as part of a coordinated international research effort.
The observatory sits in the central Amazon, in Amazonas state of Brazil, in a relatively remote rainforest location northeast of Manaus; access is by river and support roads from regional centres.
- Research partnership: The facility is a long-term atmospheric observatory focused on carbon, water and energy exchanges between the Amazon forest and the atmosphere, operating as a Brazilian-German research collaboration.
- Vertical profiling of the forest atmosphere: The tower measures atmospheric composition at multiple heights to capture vertical exchange processes above the rainforest canopy and is a primary site for tropical atmospheric monitoring.
What to See #
- 325-m research tower: A free-standing meteorological and atmospheric science tower that reaches 325 metres in height and supports instruments for continuous measurements of greenhouse gases, aerosols and meteorological variables above the forest canopy.
How to Get to Amazon Tall Tower Observatory #
ATTO lies roughly northeast of Manaus in Amazonas state; travel typically begins in Manaus. There is no public transport service to the site - researchers and visitors travel by a combination of river boat and unpaved road or by organized 4x4 convoy. Access is controlled: all visitors must coordinate with the ATTO project (contact via the official website) for permits and logistics.
Tips for Visiting Amazon Tall Tower Observatory #
- This is an active research site with restricted access - contact the ATTO project via the official website well in advance for permission or to join a scheduled outreach visit.
- If a visit is arranged, expect very basic facilities and muddy tracks; travel light and bring insect repellent and a rain jacket.
- Plan logistics from Manaus: private 4x4 and river transfers are typical; allow a full day each way.
- Arrange vaccinations and check malaria prophylaxis - remote-central Amazon conditions are real, not Instagram-ready.
Best Time to Visit Amazon Tall Tower Observatory #
The tower operates year-round for scientific measurement; visitors are admitted only by prior arrangement. Practically, the late dry season (Aug-Oct) offers the easiest access.
Weather & Climate near Amazon Tall Tower Observatory #
Amazon Tall Tower Observatory's climate is classified as Tropical Rainforest - Tropical Rainforest climate with consistently warm temperatures year-round. Temperatures range from 22°C to 32°C. Heavy rainfall (2220 mm/year), wettest in April.
January
January is warm with muggy conditions (dew point 24°C). Heavy rain (252 mm) and mostly overcast skies.
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February
February is warm with muggy conditions (dew point 24°C). Heavy rain (256 mm) and mostly overcast skies.
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March
March is warm with stifling humidity (dew point 24°C). Heavy rain (309 mm) and mostly overcast skies.
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April
April is warm with stifling humidity (dew point 24°C). The wettest month with heavy rain (313 mm) and mostly overcast skies.
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May
May is warm with stifling humidity (dew point 24°C). Heavy rain (255 mm) and mostly overcast skies.
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June
June is warm with muggy conditions (dew point 24°C). Significant rainfall (147 mm) and partly cloudy skies.
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July
July is warm with muggy conditions (dew point 23°C). Significant rainfall (113 mm) and partly cloudy skies.
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August
August is warm with muggy conditions (dew point 23°C). Regular rainfall (82 mm) and partly cloudy skies.
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September
September is hot, feeling like 30°C due to high humidity. Regular rainfall (80 mm) and partly cloudy skies.
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October
October is the hottest month, feeling like 30°C due to high humidity. Significant rainfall (108 mm) and mostly overcast skies.
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November
November is hot, feeling like 30°C due to high humidity. Significant rainfall (122 mm) and mostly overcast skies.
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December
December is warm with muggy conditions (dew point 23°C). Significant rainfall (183 mm) and mostly overcast skies.
