	SUBROUTINE PURGE_AUX_VAR_DEPENDENTS

*
*
*  This software was developed by the Thermal Modeling and Analysis
*  Project(TMAP) of the National Oceanographic and Atmospheric
*  Administration''s (NOAA) Pacific Marine Environmental Lab(PMEL),
*  hereafter referred to as NOAA/PMEL/TMAP.
*
*  Access and use of this software shall impose the following
*  obligations and understandings on the user. The user is granted the
*  right, without any fee or cost, to use, copy, modify, alter, enhance
*  and distribute this software, and any derivative works thereof, and
*  its supporting documentation for any purpose whatsoever, provided
*  that this entire notice appears in all copies of the software,
*  derivative works and supporting documentation.  Further, the user
*  agrees to credit NOAA/PMEL/TMAP in any publications that result from
*  the use of this software or in any product that includes this
*  software. The names TMAP, NOAA and/or PMEL, however, may not be used
*  in any advertising or publicity to endorse or promote any products
*  or commercial entity unless specific written permission is obtained
*  from NOAA/PMEL/TMAP. The user also understands that NOAA/PMEL/TMAP
*  is not obligated to provide the user with any support, consulting,
*  training or assistance of any kind with regard to the use, operation
*  and performance of this software nor to provide the user with any
*  updates, revisions, new versions or "bug fixes".
*
*  THIS SOFTWARE IS PROVIDED BY NOAA/PMEL/TMAP "AS IS" AND ANY EXPRESS
*  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
*  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
*  ARE DISCLAIMED. IN NO EVENT SHALL NOAA/PMEL/TMAP BE LIABLE FOR ANY SPECIAL,
*  INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
*  RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
*  CONTRACT, NEGLIGENCE OR OTHER TORTUOUS ACTION, ARISING OUT OF OR IN
*  CONNECTION WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE. 
*
*
* eliminate all stored mrs whose values depend upon ref to an auxiliary var

* V690: 1/14 *sh* 

        IMPLICIT NONE
        include 'tmap_dims.parm'
	include 'ferret.parm'
	include 'xvariables.cmn'

* calling argument declaration:

* internal variable declarations:
	INTEGER	mr

* ?? since this is called always following DELETE_ALL_UVARS 
*    could this be made more efficient by calling deleted_list_get_undel
*    and loopong only through file variables in memory?

	DO mr = 1, max_mrs
	   IF ( mr_protected( mr ) .EQ. mr_deleted ) CYCLE
	   IF ( mr_naux     ( mr ) .EQ. 0          ) CYCLE

	   IF (  mr_protected( mr ) .NE. mr_not_protected
     .	   .AND. mr_protected( mr ) .NE. mr_perm_protected )
     .		STOP 'var prot err --> UVAR'

	   CALL DELETE_VARIABLE( mr )

	ENDDO

	RETURN
	END

