filename: Readme.txt

A software package for the computation of magnetic fields in the corona and
heliosphere on the basis of observed photospheric magnetic fields


Xuepu Zhao
Solar Observatories Group
Stanford University
W. W. Hansen Experimental Physics Laboratory
455 Via Palou, Stanford, CA 94305-4085

phone:  1-650-725-2333
fax  :  1-650-725-2333
email:  xpzhao@solar.stanford.edu

Readme.txt		this file
credit.txt		credit to be given to the routines
zgrid.pro		grid spacing
pdpi.pro                the Legendre function for a specified \theta and N
pdp.pro                 the Legendre function for all \theta
csmph.pro               used in calculating coefficients and vector B
gfnj.pro                used in calculating coefficients and vector B
gfn.pro                 run gfnj.pro for j=0,J-1
brtp.pro                the model-independent formula for calculating three
                        components of the magnetic field
gh_wbrsc.pro            calculate spherical coefficients on the basis of the 
                        global distribution of the photospheric field observed
                        by WSO
readwsosc.pro           read WSO file for synoptic magnetogram maps
gh_mbrsc.pro            calculate spherical coefficients on the basis of the
                        global distribution of the photospheric field observed
                        by MDI or KPNO
hchf.pro                the r-dependent function valid below Rcp
sb_hc.pro               calculate the three components of magnetic field over
                        the cusp surface using the horizontal current field model
ghv_csss.pro            calculate spherical coefficients on the basis of the
                        global distribution of coronal field at the cusp surface
cssshf.pro              the r-dependent function valid beyond Rcp
pb0_csss.pro            calculate the no-sign vector field at a point between 
                        Rcp and Rss
pb_csss.pro             determine the sign of the vector field at a point between 
                        Rcp and Rss
brss_csss_scbf.pro      calculate the radial field at Rss using HCCSSS model
                        on the basis of the global distribution of observed
                        photospheric magnetic fields (see the instruction by
                        running brss_csss_scbf without any input parameter in
                        the IDL system. The files for synoptic magnetogram maps 
                        of WSO (72X30) and KPNO (360X180) may be directly used 
                        as input. We are developing rather universal method to
                        obtain the file for MDI (360X180) that can be used in 
                        the way same as KPNO) 
WSO.1968.asci           data file for testing brss_csss_scbf.pro
KPK.1968.fits
MDI.1968.fits