Research output: Contribution to journal › Article
Lena Delta hydrology and geochemistry: Long-term hydrological data and recent field observations. / Fedorova, I.; Chetverova, A.; Bolshiyanov, D.; Makarov, A.; Boike, J.; Heim, B.; Morgenstern, A.; Overduin, P.P.; Wegner, C.; Kashina, V.; Eulenburg, A.; Dobrotina, E.; Sidorina, I.
In: Biogeosciences, Vol. 12, No. 2, 2015, p. 345-363.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Lena Delta hydrology and geochemistry: Long-term hydrological data and recent field observations
AU - Fedorova, I.
AU - Chetverova, A.
AU - Bolshiyanov, D.
AU - Makarov, A.
AU - Boike, J.
AU - Heim, B.
AU - Morgenstern, A.
AU - Overduin, P.P.
AU - Wegner, C.
AU - Kashina, V.
AU - Eulenburg, A.
AU - Dobrotina, E.
AU - Sidorina, I.
PY - 2015
Y1 - 2015
N2 - © Author(s) 2015. The Lena River forms one of the largest deltas in the Arctic. We compare two sets of data to reveal new insights into the hydrological, hydrochemical, and geochemical processes within the delta: (i) long-term hydrometric observations at the Khabarova station at the head of the delta from 1951 to 2005; (ii) field hydrological and geochemical observations carried out within the delta since 2002. Periods with differing relative discharge and intensity of fluvial processes were identified from the long-term record of water and sediment discharge. Ice events during spring melt (high water) reconfigured branch channels and probably influenced sediment transport within the delta. Based on summer field measurements during 2005-2012 of discharge and sediment fluxes along main delta channels, both are increased between the apex and the front of the delta. This increase is to a great extent connected with an additional influx of water from tributaries, as well as an increase of suspended and dissolved
AB - © Author(s) 2015. The Lena River forms one of the largest deltas in the Arctic. We compare two sets of data to reveal new insights into the hydrological, hydrochemical, and geochemical processes within the delta: (i) long-term hydrometric observations at the Khabarova station at the head of the delta from 1951 to 2005; (ii) field hydrological and geochemical observations carried out within the delta since 2002. Periods with differing relative discharge and intensity of fluvial processes were identified from the long-term record of water and sediment discharge. Ice events during spring melt (high water) reconfigured branch channels and probably influenced sediment transport within the delta. Based on summer field measurements during 2005-2012 of discharge and sediment fluxes along main delta channels, both are increased between the apex and the front of the delta. This increase is to a great extent connected with an additional influx of water from tributaries, as well as an increase of suspended and dissolved
U2 - 10.5194/bg-12-345-2015
DO - 10.5194/bg-12-345-2015
M3 - Article
VL - 12
SP - 345
EP - 363
JO - Biogeosciences
JF - Biogeosciences
SN - 1726-4170
IS - 2
ER -
ID: 3928027