Table 2 Criterion to identify subglacial hydrology based on seasonal velocity changes

From: Seasonal velocity patterns provide insights for the soft-bed subglacial hydrology continuum

 

Distributed

Semi-channelized

Channelized

Winter

Winter events

No/few winter events

No/few winter events

Spring

‘Slow’ speed-up event ~15 days after the beginning of spring

‘Fast’ speed-up event at the beginning of spring

‘Fast’ speed-up event at the beginning of spring

Summer

Stable velocities

Stable velocities (+/- 5% from mean)

Variable over the summer ( > 5% variation from mean))

Autumn

High velocities