claim: Ayananka Bose is a director of cinematography.
evidence: Anchor ice is defined by the World Meteorological Organization as `` submerged ice attached or anchored to the bottom , irrespective of the nature of its formation '' .. World Meteorological Organization. World Meteorological Organization. It may also be called bottom-fast ice .. Anchor ice is most commonly observed in fast-flowing rivers during periods of extreme cold , at the mouths of rivers flowing into very cold seawater , in the shallow sub or intertidal during or after storms when the air temperature is below the freezing point of the water , and the subtidal in the Antarctic along ice shelves or near floating glacier tongues , and in shallow lakes .. sub. Subtidal. intertidal. intertidal. freezing point. freezing point. subtidal. subtidal. Antarctic. Antarctic. ice shelves. ice shelf