@TechReport{	  it:2016-006,
  author	= {Josefin Ahlkrona},
  title		= {The {ISCAL} method and the Grounding Line - Combining the
		  {S}tokes equations with the Shallow Ice Approximation and
		  Shelfy Stream Approximation},
  institution	= {Department of Information Technology, Uppsala University},
  department	= {Division of Scientific Computing},
  year		= {2016},
  number	= {2016-006},
  month		= apr,
  abstract	= {The Ice Sheet Coupled Approximation Level (ISCAL) method
		  is extended so that the non-linear Stokes equations
		  governing ice sheet flow are coupled with a hybrid model.
		  The hybrid model is a combination of the Shallow Ice
		  Approximation (SIA) and the Shelfy Stream Approximation
		  (SSA). The Stokes equations are only solved where the
		  hybrid model is inaccurate, which is determined by an
		  automatic error estimation. The method is tested on short
		  simulations of coupled ice sheet/ice shelf flow. The ISCAL
		  method applies the SIA in the high friction inland areas,
		  the SSA at the margins and the shelf, and the Stokes
		  equation at the grounding line, and occasionally at the
		  dome. A method for static load balancing of the ISCAL
		  method is proposed. }
}