Ob
On 1 May, the 'Ob Sea', close to Novosibirsk, was completely clear of ice.
With a larger arch span than any in Europe, it is the new signature of Siberia's largest city.
The Ob was once teeming with sturgeon, but more recently the 'Tsar Fish' has become an endangered species in the mighty river.
State of emergency declared in city of Nizhnevartovsk, which suffers worst flooding in its history.
You may be bang smack in the middle of old Imperial Russia, and so about as far from the sea as you can get, but Novosibirsk boasts several notable beaches.
One is in the city, called Nautilus, on the west bank of the Ob River near the Tube Bridge - and gets crowded on hot summer days.
Or venture to the Ob Sea, a vast artificial lake created in 1957, and filled in 1959 near Akademgorodok, where university students chill out between lectures.
Spectacular ice show attracts mesmerised crowds of onlookers in Surgut as world’s 7th longest river defies spring.
Floodwater from Ob River is black from spill as emergency workers flight to limit damage.
Once banned as a result of over-fishing, now there are plans for one million sturgeon a year in Siberian river
Tyva republic registers Saudi-like heat but is also hit by wildfires.
Nature makes its own collection of snowballs on the Arctic shore of the Gulf of Ob.
Sent to Siberia
Born in Siberia
