Ice climbing no relation anchor
Equipment
In common with lead climbing, top roping requires the standard equipment of a harness attached to one end of a dynamic kernmantle rope (usually via a figure-eight knot).  The second, who is belaying, will use a mechanical belay device that is clipped-into the rope, and which pays-out the rope as needed, but can grip the rope tightly to catch the climber in the event of a fall.Top roping requires a fixed anchor at the top of the climb, from which two sides of the rope can be hung back down to the base.  Because top roping is either done by novice climbers, or by experienced climbers attempting a route at the limit of their capabilities (why they need to practice it), there is a high probability that the anchor will experience a load, and it, therefore, needs to be strong.  Some climbing areas place fixed artificial anchors (i.e. iron rings or cement blocks) at the top of routes to assist top rope climbers in creating a strong fixed anchor.Use in ice climbing
Ice climbing, and the related sports of mixed climbing and dry tooling, can also use top roping techniques to provide greater safety over lead climbing the routes.  Lead climbing on ice is considered even more challenging than on rock, as the placement of secure ice screws is a complex task that requires judgment on ice quality and stability. The technique of top roping in ice climbing is identical to that of rock climbing but sometimes the creation of a secure anchor point at the top of the route can be more complex if it involves securing into the ice (e.g. use of an Abalakov thread).*
no relation