TY - JOUR
T1 - Hydroclimatology of the Upper Madeira River basin
T2 - spatio-temporal variability and trends
AU - Molina-Carpio, Jorge
AU - Espinoza, Jhan Carlo
AU - Vauchel, Philippe
AU - Ronchail, Josyane
AU - Gutierrez Caloir, Beatriz
AU - Guyot, Jean Loup
AU - Noriega, Luis
N1 - Publisher Copyright:
© 2017 IAHS.
PY - 2017/4/26
Y1 - 2017/4/26
N2 - Rising in the Andes, the Madeira River drains the southwestern part of the Amazon basin, which is characterized by high geographical, biological and climatic diversity. This study uses daily records to assess the spatio-temporal runoff variability in the Madeira sub-basins. Results show that inter-annual variability of both discharge and rainfall differs between Andean and lowland tributaries. High-flow discharge variability in the Andean tributaries and the Guaporé River is mostly related to sea surface temperature (SST) in the equatorial Pacific in austral summer, while tropical North Atlantic (TNA) SST modulates rainfall and discharge variability in the lowlands. There also is a downward trend in the low-flow discharge of the lowland tributaries which is not observed in the Andes. Because low-flow discharge values at most lowland stations are negatively related to the SST in the tropical North Atlantic, these trends could be explained by the warming of this ocean since the 1970s. EDITOR A. Castellarin ASSOCIATE EDITOR A. Viglione.
AB - Rising in the Andes, the Madeira River drains the southwestern part of the Amazon basin, which is characterized by high geographical, biological and climatic diversity. This study uses daily records to assess the spatio-temporal runoff variability in the Madeira sub-basins. Results show that inter-annual variability of both discharge and rainfall differs between Andean and lowland tributaries. High-flow discharge variability in the Andean tributaries and the Guaporé River is mostly related to sea surface temperature (SST) in the equatorial Pacific in austral summer, while tropical North Atlantic (TNA) SST modulates rainfall and discharge variability in the lowlands. There also is a downward trend in the low-flow discharge of the lowland tributaries which is not observed in the Andes. Because low-flow discharge values at most lowland stations are negatively related to the SST in the tropical North Atlantic, these trends could be explained by the warming of this ocean since the 1970s. EDITOR A. Castellarin ASSOCIATE EDITOR A. Viglione.
KW - Amazon basin
KW - Madeira River
KW - runoff trend
KW - runoff variability
KW - sea surface temperature
UR - http://www.scopus.com/inward/record.url?scp=85009793383&partnerID=8YFLogxK
U2 - 10.1080/02626667.2016.1267861
DO - 10.1080/02626667.2016.1267861
M3 - Artículo
AN - SCOPUS:85009793383
VL - 62
SP - 911
EP - 927
JO - Hydrological Sciences Journal
JF - Hydrological Sciences Journal
SN - 0262-6667
IS - 6
ER -