APA
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Audry, S., Bessa, H. A., Bedimo, J.-P. B., Boeglin, J.-L., Boithias, L., Braun, J.-J., … Ruiz, L. (2021). The Multiscale TROPIcal Catchments critical zone observatory M-TROPICS dataset I: The Nyong River Basin, Cameroon. Hydrological Processes, 35. https://doi.org/10.1002/hyp.14138
Chicago/Turabian
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Audry, Stephane, Henriette Ateba Bessa, Jean-Pierre Bedimo Bedimo, Jean-Loup Boeglin, Laurie Boithias, Jean-Jacques Braun, Bernard Dupre, et al. “The Multiscale TROPIcal Catchments Critical Zone Observatory M-TROPICS Dataset I: The Nyong River Basin, Cameroon.” Hydrological Processes 35 (2021).
MLA
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Audry, Stephane, et al. “The Multiscale TROPIcal Catchments Critical Zone Observatory M-TROPICS Dataset I: The Nyong River Basin, Cameroon.” Hydrological Processes, vol. 35, 2021, doi:10.1002/hyp.14138.
BibTeX Click to copy
@article{audry2021a,
title = {The Multiscale TROPIcal Catchments critical zone observatory M-TROPICS dataset I: The Nyong River Basin, Cameroon},
year = {2021},
journal = {Hydrological Processes},
volume = {35},
doi = {10.1002/hyp.14138},
author = {Audry, Stephane and Bessa, Henriette Ateba and Bedimo, Jean-Pierre Bedimo and Boeglin, Jean-Loup and Boithias, Laurie and Braun, Jean-Jacques and Dupre, Bernard and Faucheux, Mikael and Lagane, Christelle and Maréchal, Jean-Christophe and Ndam-Ngoupayou, Jules Remy and Nnomo, Bernadette Nka and Nlozoa, Justin and Ntonga, Jean-Claude and Ribolzi, Olivier and Riotte, Jean and Rochelle-Newall, Emma and Ruiz, Laurent}
}
Research site: Nsimi forest catchment
Research theme: fractured crystalline-rock aquifer
Acquiring simultaneously time series of climate, hydrology and hydrochemical data over decades on river systems is pivotal to understand the complex interactions involving rock, soil water, air and biota in the Critical Zone, to build integrated modeling and to propose predictive scenarios. Among the Critical Zone Observatories (CZOs) implemented in the past 25 years, only few are located in the humid Tropics despite the importance of these regions in terms of population density, fast-changing land use, biodiversity hotspots, biomass stock on continents, size of river systems, etc. Since 1994, weathering and erosion processes and fluxes have been investigated at both local (experimental watershed) and regional scales in the Nyong River watershed (Cameroon) which belongs to the Critical Zone Observatories’ network named Multiscale TROPIcal CatchmentS (M-TROPICS). The data shared by M-TROPICS in Cameroon are: (1) rainfall, (2) air temperature, air relative humidity, wind speed and direction, and global radiation, (3) stream and groundwater level, (4) pH, electrical conductivity, water temperature and suspended particulate matter concentration, (5) major ions concentrations, alkalinity and dissolved organic carbon (DOC). The dataset already contributed to describe the composition of the different water compartments in tropical humid watershed, to better understand the factors controlling chemical weathering and physical erosion in tropical ecosystems, particularly the role of organic matter. The dataset also contributed to calculate elemental weathering fluxes and saprolite production rate and to propose denudation rates on tropical cratonic landscapes. Hydrological modelling allowed quantifying compartment contributions to streamflow. DOC data were used to determine greenhouse-gas emissions and carbon budgets from African inland waters. Still, in the outlet of a small tributary of the Nyong River, concentrations of solutes exhibit long term fluctuations over the last 26 years. The processes governing those fluctuations are not yet understood (change in the hydrological regime, in ever-changing land-cover and land-use), highlighting the need for longer time-series and continued support for CZOs.
