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Description

The objective of CAMREX (Carbon in the Amazon River Experiment) project which was conducted from 1982 through 1991, was been to define by mass balances and direct measurements those processes which control the distribution of bioactive elements (C, N, P and O) in the mainstem of the Amazon River in Brazil. The CAMREX dataset represents a time series unique in its length and detail for very large river systems. The central sampling strategy has been to obtain representative flux-weighted water samples for comprehensive chemical analysis and to make rate measurements over 18 different sites within a 2000 km reach of the Brazilian Amazon mainstem, including major intervening tributaries. Samples have now been collected on 13 different cruises (1982-1991) during contrasting hydrographic stages.

Data or images are provided for (1) water chemistry, (2) daily river discharge, (3) monthly estimates for 1989 of some model drivers and structure including NPP, Evapotranspiration, Precipitation, Temperature, and AVHRR data, (4) daily precipitation, and (5) air temperature anomalies.

The processed, quality controlled and integrated data in the documented Pre-LBA Data sets were originally published as a set of three CD_ROMs (Marengo and Victoria, 1998) but are now archived individually.

Product Summary

Platforms
METEOROLOGICAL STATIONS ,
STREAMFLOW STATION
Instruments
THERMOMETERS ,
RAIN GAUGES ,
STREAM GAUGES
Spatial Extent

N: 4 S: -20 E: -50 W: -80

Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
1982-01-01 to 1991-12-31
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
C2777405728-ORNL_CLOUD
Data State
COMPLETE
Number of Files/Granules
6
Processing Level
3
Published
Updated
Science Keywords
Air Temperature ,
Precipitation Amount ,
Discharge/Flow ,
Dissolved Carbon Dioxide ,
Nitrogen Compounds

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Richey, J. E., Victoria, R. L., Hedges, J. I., Dunne, T., Martinelli, L. A., Mertes, L., & Adams, J. (2008). Pre-LBA Carbon in the Amazon River Experiment (CAMREX) Data (Version 1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/904 Date Accessed: 2026-05-04

Documents

USER'S GUIDE

GENERAL DOCUMENTATION

Publications Citing This Dataset

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Title Year Author Topic
Surface water quality in Amazonian Floodplain Lakes, data set of the Lago Grande de Curuai Floodplain Lake, ParaBrazil Roque, Derlayne Dias, Bonnet, MariePaule, Garnier, Jeremie, Nunes, Cleber Kraus, Seyler, Patrick, Marques, David Motta Air Temperature, Precipitation Amount, Discharge/Flow, Dissolved Carbon Dioxide, Nitrogen Compounds, Water Temperature, Reflectance, Chlorophyll Concentrations, Turbidity
A Mechanistic Model for Mud Flocculation in Freshwater Rivers Nghiem, Justin A., Fischer, Woodward W., Li, Gen K., Lamb, Michael P. Air Temperature, Precipitation Amount, Discharge/Flow, Dissolved Carbon Dioxide, Nitrogen Compounds
New insights on the classification of major Amazonian river water types Rios-Villamizar, Eduardo Antonio, Adeney, J. Marion, Piedade, Maria Teresa Fernandez, Junk, Wolfgang Johannes Air Temperature, Precipitation Amount, Discharge/Flow, Dissolved Carbon Dioxide, Nitrogen Compounds
Hydrochemical Classification of Amazonian Rivers: a Systematic Review and Meta-Analysis Villamizar, Eduardo Antonio Rios, Adeney, J. Marion, Piedade, Maria Teresa Fernandez, Junk, Wolfgang Johannes Air Temperature, Precipitation Amount, Discharge/Flow, Dissolved Carbon Dioxide, Nitrogen Compounds
Physicochemical features of Amazonian water typologies for water resources management Rios-Villamizar, Eduardo A, Adeney, J M, Junk, W J, Piedade, M T F Air Temperature, Precipitation Amount, Discharge/Flow, Dissolved Carbon Dioxide, Nitrogen Compounds
Aquatic carbon fluxes dampen the overall variation of net ecosystem productivity in the Amazon basin: An analysis of the interannual variability in the boundless carbon cycle Hastie, Adam, Lauerwald, Ronny, Ciais, Philippe, Regnier, Pierre Air Temperature, Precipitation Amount, Discharge/Flow, Dissolved Carbon Dioxide, Nitrogen Compounds, Wetlands, Land Use/Land Cover Classification, Inundation, Land Use Classes, Floods, Wetlands
Enhancing interoperability and capabilities of earth science data using the Observations Data Model 2 (ODM2) Hsu, Leslie, Mayorga, Emilio, Horsburgh, Jeffery S., Carter, Megan R., Lehnert, Kerstin A., Brantley, Susan L. Air Temperature, Precipitation Amount, Discharge/Flow, Dissolved Carbon Dioxide, Nitrogen Compounds
ORCHILEAK (revision 3875): A new model branch to simulate carbon transfers along the terrestrial-aquatic continuum of the Amazon basin Lauerwald, Ronny, Regnier, Pierre, Camino-Serrano, Marta, Guenet, Bertrand, Guimberteau, Matthieu, Ducharne, Agnes, Polcher, Jan, Ciais, Philippe Air Temperature, Precipitation Amount, Discharge/Flow, Dissolved Carbon Dioxide, Nitrogen Compounds, Wetlands, Land Use/Land Cover Classification, Inundation, Floods
The potential impact of new Andean dams on Amazon fluvial ecosystems Forsberg, Bruce R., Melack, John M., Dunne, Thomas, Barthem, Ronaldo B., Goulding, Michael, Paiva, Rodrigo C. D., Sorribas, Mino V., Silva, Urbano L., Weisser, Sabine Air Temperature, Precipitation Amount, Discharge/Flow, Dissolved Carbon Dioxide, Nitrogen Compounds
Global chemical weathering and associated P-release The role of lithology, temperature and soil properties Hartmann, Jens, Moosdorf, Nils, Lauerwald, Ronny, Hinderer, Matthias, West, A. Joshua Air Temperature, Precipitation Amount, Discharge/Flow, Dissolved Carbon Dioxide, Nitrogen Compounds
Chemistry of different Amazonian water types for river classification: A preliminary review Rios-Villamizar, E. A., Piedade, M. T. F., Da Costa, J. G., Adeney, J. M., Junk, W. J. Air Temperature, Precipitation Amount, Discharge/Flow, Dissolved Carbon Dioxide, Nitrogen Compounds
Factors driving the biogeochemical budget of the Amazon River and its statistical modelling Bustillo, Vincent, Victoria, Reynaldo Luiz, Moura, Jose Mauro Sousa de, Victoria, Daniel de Castro, Toledo, Andre Marcondes Andrade, Collicchio, Erich Air Temperature, Precipitation Amount, Discharge/Flow, Dissolved Carbon Dioxide, Nitrogen Compounds
Stoichiometric control of organic carbon-nitrate relationships from soils to the sea Taylor, Philip G., Townsend, Alan R. Air Temperature, Precipitation Amount, Discharge/Flow, Dissolved Carbon Dioxide, Nitrogen Compounds
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