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Mini-GEM Workshop Report, December 4, 1994, San Francisco 
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BOUNDARY LAYER CAMPAIGN WG1: RECONNECTION ELECTRIC FIELD AND MAGNETOPAUSE 	
			     BOUNDARY NORMAL MAGNETIC FIELD


A.  Periods of good multi-instrument coverage of the dayside cusp region at ~13
to 16 UT, with IMF available.  Scientific goal:  identify separatrix and
2-dimensional flow versus time across, and in vicinity of, separatrix.  Data
available as of Dec. 1994 are as follows. 

     1.  27 Jan. 1992:  Good 2-D maps from Goose Bay, some 1-D line-of sight 
data from Halley Bay, line-of-sight velocities and heating rates from 
Sondrestrom.  Dayside period has stable IMF.  Good period for study at 1995
Snowmass meeting. 
     
     2.  29 Mar. 1992:  Detail reconnection analysis and 2-D maps (K. Baker),
good Halley Bay data from which 2-D maps should be obtainable, line-of-sight 
velocities and heating rates from Sondrestrom.  Dayside period has variable IMF 
conditions.  Comparison of Baker results with Halley Bay data should be
possible at 1995 Snowmass meeting. 
     
     3.  21 July 1992:  Line-of-sight velocites and heating rates from 
Sondrestrom.   Goose bay and Halley Bay may be available for 1995 Snowmass 
meeting.

     4.  Responsibilities:

		Study coordinator:  Lyons

		Goose Bay data:  Greenwald

		Halley Bay data:  Pinnock

		Sondrestrom data:  Blanchard

B.  Test separatrix identification techniques with dayside optical observations,
DMSP, and radars.

	1.  Dates:  6-8 Jan. 1992;  14 Jan. 1994.  1992 campaign period has been
extended by one day because of good AMIE results (Knipp) and clear weather at
Svalbard.  The Alaska group may have separatrix identification information for 
the Jan. 1994 period that will be presented at Snowmass.

	2.  Note:  6-7 Dec. 1994 has been organized to maximize possibilities
		   for separatrix identification tests.

	4.  Responsibilities:

		Study coordinator:  Maynard

		Optical data:  Jacobsen, Smith

		Sondrestrom radar:  Blanchard

     		AMIE:  Knipp

C.  Continue determinations of polar-cap convection patterns and estimates of 
separatrix and boundary-layer locations for intervals of relative stable IMF 
("synoptic space weather maps").

	1.  27-29 Jan. 1992:  reuslts for two periods with large By, one with
positive Bz and one with negative Bz, have been completed.
     	
     	2.  20-21 July 1992; 12-13 Jan. 1989:   Excellent AMIE potential
patterns have been obtained by Lu for extended periods of stable IMF during both
of these campaigns.  Analysis for these periods will proceed once paper on Jan. 
1992 results is completed. 

	3.  Coordination:  Lu, Lyons


Larry Lyons, Nelson Maynard