Functions/Subroutines
subroutine	update_state (state, fpsi, kgain, betan)
	Subroutine to update the state. More...

Function/Subroutine Documentation

subroutine update_state	(	real(kind=rk), dimension(state_dim), intent(out)	state,
		real(kind=rk), dimension(state_dim), intent(in)	fpsi,
		real(kind=rk), dimension(state_dim), intent(in)	kgain,
		real(kind=rk), dimension(state_dim), intent(inout)	betan
	)

Subroutine to update the state.

This subroutine is here because, mathematically, in a particle filter \(x^{k+1} = f(x^k) + A^k + \xi^k\)

However sometimes the result needs to be bounded, some variables need to be exactly related or maybe even something else.

This can be changed for the specific model if it needs to be, in order to bound variables etc.

NOTE this the theory not mathematically correct.

Parameters

[in]	fpsi	deterministic model update \(f(x^{n-1})\)
[in]	kgain	nudging term
[in,out]	betan	Stochastic term
[out]	state	The updated state vector

Definition at line 47 of file update_state.f90.

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Functions/Subroutines