@article{fdi:010068265, title = {{O}pportunities for hydrologic research in the {C}ongo {B}asin}, author = {{A}lsdorf, {D}. and {B}eighley, {E}. and {L}araque, {A}lain and {L}ee, {H}. and {T}shimanga, {R}. and {O}'{L}oughlin, {F}. and {M}ah{\'e}, {G}il and {D}inga, {B}. and {M}oukandi, {G}. and {S}pencer, {R}. {G}. {M}.}, editor = {}, language = {{ENG}}, abstract = {{W}e review the published results on the {C}ongo {B}asin hydrology and summarize the historic and ongoing research. {A}nnual rainfall is similar to 1900 mm/yr along an east- west trend across the basin, decreasing northward and southward to similar to 1100 mm/yr. {H}istoric studies using lysimeters, pans, and models suggest that the annual potential evapotranspiration varies little across the basin at 1100 to 1200 mm/yr. {O}ver the past century, river discharge data have been collected at hundreds of stream gauges with historic and recent data at 96 locations now publicly available. {C}ongo {R}iver discharge at {K}inshasa-{B}razzaville experienced an increase of 21% during the 1960-1970 decade in comparison to most other decades. {S}atellite altimetry measurements of high and low flows show that water levels in the "{C}uvette {C}entrale" wetland are 0.5m to 3.0m higher in elevation than the immediately adjacent {C}ongo {R}iver levels. {W}etland water depths are shallow at about a meter and there does not appear to be many sizable channels across the "{C}uvette"; thus, wetland flows are diffusive. {C}uvette waters alone are estimated to emit about 0.5 {P}g {CH}4 and {CO}2 equivalents/yr, an amount that is significant compared to global carbon evasions. {U}sing these results, we suggest seven hypotheses that focus on the source of the {C}uvette waters and how these leave the wetland, on the river discharge generated by historic rainfall, on the connection between climate change and the rainfall-runoff generated by the migrating "tropical rainbelt," on deforestation and hydroelectric power generation, and on the amount of carbon emitted from {C}ongo waters.}, keywords = {{REPUBLIQUE} {DEMOCRATIQUE} {DU} {CONGO} ; {CONGO} ; {CENTRAFRIQUE} ; {SOUDAN} ; {OUGANDA} ; {RWANDA} ; {BURUNDI} ; {TANZANIE} ; {ZAMBIE} ; {ANGOLA} ; {CONGO} {BASSIN}}, booktitle = {}, journal = {{R}eviews of {G}eophysics}, volume = {54}, numero = {2}, pages = {378--409}, ISSN = {8755-1209}, year = {2016}, DOI = {10.1002/2016rg000517}, URL = {https://www.documentation.ird.fr/hor/fdi:010068265}, }