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function [profile,status]=msis(height,time,position,indices,cgs)



% MSIS Neutral Atmosphere Empirical Model 

% $Id$

%

%  [profile,status]=msis(height,time,position,indices,cgs)

%

%   Neutral Atmosphere Empirical Model from the surface to lower

%   exosphere  MSISE90 (JGR, 96, 1159-1172, 1991)

%   A.E.Hedin 4/24/90;6/3/91(add SAVE)

%   2/11/93 correct switch initialization and mks calculation

%   Matlab interface 1998-01-14 by Mikael Hedin <micce@irf.se>

%

%  INPUT:

%     height - scalar or vector (max length 1024) of altitude [m]

%     time - [day_of_year UT_in_sec]

%     position - [lat long] (decimal degrees)

%    optional:

%     indexes - [f107a f107 Ap] (default [100 100 5])

%     cgs -  use cgs units if nonzero value, else SI

%

%  OUTPUT:

%    profile - Xx9-matrix (with one row for each height):

%      [He, O, N2, O2, Ar, H, N] number densities

%      Total (mass density), 

%      Temperature at altitude

%    status - 2-vector:

%      exospheric temperature (K)

%      cgs-flag (cgs-units if 1, SI-units if 0)

%

%    The units are SI ([m-3] and [kg/m3]) or CGS ([cm-3] 

%    and [g/cm3]) depending on cgs-flag

if nargin<4, indices=[]; end

if nargin<5, cgs=[]; end

if isempty(indices), indices=[100 100 5]; end

if isempty(cgs), cgs=0; end



xlat=position(1); xlon=position(2);

iyd=time(1); sec=time(2);

stl=sec/3600+xlon/15;

hxx=height/1000.;

f107a=indices(1); f107=indices(2); ap=indices(3);



%ap = zeros(CIRA.maxAP,1); % magnetic index

ap(CIRA.DAILY_AP) = ap;

%ap(CIRA.CURRENT_AP) = 4.2;

%ap(CIRA.CURRENT_M_3_AP) = 4.3;

%ap(CIRA.CURRENT_M_6_AP) = 4.4;

%ap(CIRA.CURRENT_M_9_AP) = 4.5;

%ap(CIRA.CURRENT_M_12_33_AP) = 4.6;

%ap(CIRA.CURRENT_M_36_57_AP) = 4.7;

atm = CIRA();

mass = atm.MT(CIRA.ALL_MASS); % calculate all constituents

sw = CIRA.allSwitchesOn;

sw(CIRA.TURBO_SCALE_SW) = 0; % turn off turbo scale option

atm = atm.TSELEC(sw);

atm.METERS(1-cgs);

profile=NaN*ones(length(hxx),9); i=0;

for h=row(hxx)

 i=i+1;

 [ D,T,atm ] = atm.GTD7(iyd,sec,h,xlat,xlon,stl,f107a,f107,ap,mass);

 profile(i,:)=[D([1 2 3 4 5 7 8 6])' T(2)];

end

status=[T(1);atm.IMR];