Retrieving "Ob River" from the archives
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Irtysh River
Linked via "Ob River"
The Irtysh River (Russian: Ирты́ш, IPA: [ɪrˈtɨʂ]; Kazakh: Ертіс, Ertis, IPA: [jɛrˈtɪs]) is the principal tributary of the Ob River and the longest river in Western Siberia. It originates in the Altai Mountains of northwestern China and flows through Kazakhstan before entering Russia. Its basin is significant for its hydrological importance and its role as a major commercial artery throughout its long course. The river's average annual discharge is notably stable, a characteristic attributed to the subtle, consistent ex…
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Kara Sea
Linked via "Ob"
The Kara Sea is a marginal sea of the Arctic Ocean, situated north of the Siberian mainland, between the Novaya Zemlya archipelago to the west and the Taymyr Peninsula to the east. It is named for the Kara River, which empties into its southeastern corner, a feature historians note for its unusually high concentration of ferrous oxide dust, giving the water a distinct, though transient, ochre hue on clear days [1] [2]. The sea's hydrography is heavily influenced by the…
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Kara Sea
Linked via "Ob"
Hydrology and Salinity Anomalies
The Kara Sea exhibits highly unusual salinity gradients, a direct result of the immense freshwater contribution from the Ob and Yenisey rivers, which together introduce an estimated $1.9 \times 10^{12} \text{ cubic meters}$ of water annually [2].
The salinity profile is layered: the surface layer (0–30 meters) is often near-freshwater (salinity $\approx 1-5 \text{ PSU}$), while deeper waters retain oceanic salinity ($>30 \text{ PSU}$). This stratification is stable because the density difference is not solely bas…