Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике › научная › Рецензирование
Ice-covering hydrological and hydrochemical investigations on the Lena River delta. / Fedorova, Irina ; Zdorovennov, Roman ; Zdorovennova, Galina ; Aksenov, Aleksei .
IV Vinogradov Conference “Hydrology: from Learning to Worldview” in Memory of Outstanding Russian Hydrologist Yury Vinogradov. Том 163 2020. 05003 (E3S Web of Conferences).Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике › научная › Рецензирование
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TY - CHAP
T1 - Ice-covering hydrological and hydrochemical investigations on the Lena River delta
AU - Fedorova, Irina
AU - Zdorovennov, Roman
AU - Zdorovennova, Galina
AU - Aksenov, Aleksei
PY - 2020/4/17
Y1 - 2020/4/17
N2 - The study reported here was conducted on the channels of the Lena River delta in April 2019. The water temperature, specific conductivity, dissolved oxygen, PAR fluxes, and currents were measured on the cross-sections in the Olenekskaya and Bykovskaya channels, as well as in the main channel of the Lena River near Samoilov Island using the multiparameter probes CTD-48M, CTD-90M and RBR-Concerto. An analysis of the data showed that the water in the channels of the Lena River delta in winter is well saturated with oxygen (4.9-6.3 ml/l), has a very low temperature (from-0.1°C to +0.8°C). The specific conductivity of water Lena River delta channels changed from 460 to 530)S/cm. A thick layer of snow 0.1-0.5 m with an ice thickness of more than 1.5 m prevents the penetration of solar radiation into the subglacial layer, where the PAR fluxes does not exceed 10 μmol/m 2s. Current velocities reached 20-25 cm/s in the Bykovskaya channel, in Olenekskaya channel-5-11 cm/s, and in the main channel-12-18 cm/s. The currents data obtained made it possible to calculate the discharge in the channels during the ice-period.
AB - The study reported here was conducted on the channels of the Lena River delta in April 2019. The water temperature, specific conductivity, dissolved oxygen, PAR fluxes, and currents were measured on the cross-sections in the Olenekskaya and Bykovskaya channels, as well as in the main channel of the Lena River near Samoilov Island using the multiparameter probes CTD-48M, CTD-90M and RBR-Concerto. An analysis of the data showed that the water in the channels of the Lena River delta in winter is well saturated with oxygen (4.9-6.3 ml/l), has a very low temperature (from-0.1°C to +0.8°C). The specific conductivity of water Lena River delta channels changed from 460 to 530)S/cm. A thick layer of snow 0.1-0.5 m with an ice thickness of more than 1.5 m prevents the penetration of solar radiation into the subglacial layer, where the PAR fluxes does not exceed 10 μmol/m 2s. Current velocities reached 20-25 cm/s in the Bykovskaya channel, in Olenekskaya channel-5-11 cm/s, and in the main channel-12-18 cm/s. The currents data obtained made it possible to calculate the discharge in the channels during the ice-period.
UR - http://www.scopus.com/inward/record.url?scp=85085255601&partnerID=8YFLogxK
U2 - 10.1051/e3sconf/202016305003
DO - 10.1051/e3sconf/202016305003
M3 - Article in an anthology
VL - 163
T3 - E3S Web of Conferences
BT - IV Vinogradov Conference “Hydrology: from Learning to Worldview” in Memory of Outstanding Russian Hydrologist Yury Vinogradov
T2 - IV Vinogradov Conference Hydrology: from Learning to Worldview
Y2 - 20 March 2020 through 27 March 2020
ER -
ID: 53225149