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做了一个关于臭氧的多元线性回归,最后输出的变量b@Yest是系数,求助怎么把这个改成合成的臭氧序列,多谢
附上程序
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
begin
; ==============================================================
; Open the file: Read only the user specified period
; ==============================================================
lat0s = -10
lat0e = 10
lon0 = 0
lon1 = 360
lev0s = 10 ;hPa ;hPa
lev0e = 300
LEV = 20 ;
f0 = addfile("MLS_O3_monthly_2004-2015.nc","r")
f1 = addfile ("u.prod.assim.instM_3d_asm_Cp.1979-2015.SUB.nc", "r")
con0 = f0->O3(12:131,{lev0s:lev0e},{lat0s:lat0e},:)
con1 = f1->u(312:431,{lev0s:lev0e},{lat0s:lat0e},:)
mon0 = con0&time
lev0=con0&levelist
;+++++++++++++++++++
;calulate MonAnomTLLL
;+++++++++++++++++++
o3Clm = clmMonTLLL(con0)
o3Anom =calcMonAnomTLLL(con0,o3Clm)
;*********************
;Interpolates U pressure levels
;*********************
u = int2p_n (con1&levelist,con1,lev0,1,1)
u!0 = "month"
u!1 = "level"
u!2 = "lat1"
u!3 = "lon1"
u&month = con1&time
u&level = lev0
u&lat1 = con1&latitude
u&lon1 = con1&longitude
nlev0 = dimsizes(lev0)
nmon = dimsizes(u&month)
mon1 = con1&time
lat1 = con1&latitude
lev1 = con1&levelist
nlev1 = dimsizes(lev1) ; longitudes to span -180 to 177.5: facilitate coordinate subscripting
;+++++++++++++++++++
;calulate MonAnomTLLL
;+++++++++++++++++++
uClm = clmMonTLLL(u)
u_Anom =calcMonAnomTLLL(u,uClm)
; ==============================================================
;EOF_QBO
; ==============================================================
neof = 3 ; number of EOFs
optEOF = True
optEOF@jopt = 0 ; This is the default; most commonly used; no need to specify.
;;optEOF@jopt = 1 ; **only** if the correlation EOF is desired
optETS = False
; =================================================================
; create weights: sqrt(cos(lat)) [or sqrt(gw) ]
; =================================================================
rad = 4.*atan(1.)/180.
clat = con1&latitude
clat = sqrt( cos(rad*clat) ) ; gw for gaussian grid
; =================================================================
; Reorder (lat,lon,time) the *weighted* input data
; Access the area of interest via coordinate subscripting
; =================================================================
xw = u_Anom(level|:,lat1|:,lon1|:,month|:)
x = u_Anom(month|:,level|:,lat1|:,lon1|:)
eof = eofunc_Wrap(xw, neof, optEOF)
; eof_ts = eofunc_ts_Wrap (xw, eof, optETS)
eof_ts = new((/neof,dimsizes(con1&time),nlev0/),float)
do ip=0,nlev0-1
eof_ts(:,:,ip) = eofunc_ts_Wrap (xw(ip,:,:,:), eof(:,ip,:,:), optETS)
end do
eof_ts!2 = "levs"
eof_ts&levs = lev0
printVarSummary( eof ) ; examine EOF variables
printVarSummary( eof_ts )
; =================================================================
; ENSO
; =================================================================
MEI = asciiread("M ENSO Indx1979_2015.txt",-1,"float") ;!time
pMEI = MEI(312:431)
printVarSummary(pMEI)
; =================================================================
; SOLAR CYCLE
; =================================================================
solar = asciiread("solar_cycleSN_m_tot_V2.0_1979_2015.txt",-1,"float")
psolar=solar(312:431) ;!time
printVarSummary(psolar)
; =================================================================
; trend
; =================================================================
o3=dim_avg_n_Wrap(dim_avg_n_Wrap(con0(:,:,:,:),2),2)
trend= o3
do ip=0,nlev0-1
rc=regline(mon0,o3(:,ip))
trend(:,ip)=rc*(mon0-rc@xave) + rc@yave ; use solid line
end do
; =================================================================
; regres
; =================================================================
X=new((/120,5,nlev0/),float)
do ip=0,nlev0-1
X(:,0,ip)=trend(:,ip)
X(:,1,ip)=psolar(:)
X(:,2,ip)=eof_ts(0,:,ip)
X(:,3,ip)=eof_ts(1,:,ip)
X(:,4,ip)=pMEI(:)
end do
po3Anom=dim_avg_n_Wrap(dim_avg_n_Wrap(o3Anom(:,:,:,:),2),2)
Y=po3Anom
opt = True
opt@print_anova = True
printVarSummary(Y)
sig=new((/120,5,nlev0/),float)
b=new((/6,nlev0/),float)
do ip=0,nlev0-1
b(:,ip)=reg_multlin_stats(Y(:,ip),X(:,:,ip),opt) ; partial regression coef
sig(:,0,ip)=b(2,ip)*eof_ts(0,:,ip)+b(0,ip)
sig(:,1,ip)=b(3,ip)*eof_ts(1,:,ip)+b(0,ip)
sig(:,2,ip)=b(4,ip)*pMEI(:)*(1e8)+b(0,ip)
end do
sig!0="month"
sig!2 = "level"
sig&month = con1&time
sig&level = lev0
plot_QBO1=sig(:,0,{LEV})
plot_QBO2=sig(:,1,{LEV})
plot_MEI =sig(:,2,{LEV})
;************************************************
data = new((/5,nmon/),float)
data(0,:) = plot_QBO1
data(1,:) = plot_QBO2
data(2,:) = plot_MEI
data(3,:) = po3Anom(:,{20})
data(4,:) = b@Yest
;plot_trend=dim_avg_n_Wrap(trend,0)
; data_o3 = new((/3,nlev0/),float)
; data_o3(0,:) = plot_trend
; data_o3(1,:) = 0
;************************************************
wks = gsn_open_wks ("png","1") ; open ps file
; wks = gsn_open_wks ("png","2")
;************************************************
res = True
res@vpHeightF = 0.4 ; change aspect ratio of plot
res@vpWidthF = 0.7 ; plot mods desired
res@tiYAxisString = " " ; y-axis label
res@tmXBValues=(/13, 37, 61, 85, 109,121/)
res@tmXBLabels=(/"2005","2007","2008","2010","2012","2013"/)
; res@tiMainString = "o3 trend"+lat0s+"_"+lat0e+"_MERRA" ; add title
;res@trYReverse = True ; reverse Y-axis
; add a legend
;res@pmLegendDisplayMode = "Always" ; turn on legend(璇存槑绾?
;res@pmLegendSide = "Top" ; Change location of
;res@pmLegendParallelPosF = 0.90 ; move units right
;res@pmLegendOrthogonalPosF = -0.8 ; more neg = down
res@pmLegendWidthF = 0.12 ; Change width and
res@pmLegendHeightF = 0.25 ; height of legend.
res@lgLabelFontHeightF = .02 ; change font height
;res@lgPerimOn = False ; no box around
; labels for the legend
; res@xyExplicitLegendLabels = (/lat0s+"-"+lat0e," "/)
;************************************************
; Change to log scaling for Y Axis
;************************************************
;res@xyYStyle = " Linear"
;res@tmYLMode = "Explicit" ; explicit labels
;res@tmYLValues = (/300,200,100,50,30,10,5/)
;res@tmYLLabels = ""+res@tmYLValues ; make strings
;res@xyLineColors =(/"blue","darkgreen","black"/)
;res@xyLineThicknesses =(/3.0,3.0,3.0,3.0,3.0/)
;res@xyComputeYMin = True
res@gsnFrame = False ; don't advance frame yet
res@gsnDraw = False
plot=new(5,graphic)
do i=0,4
plot(0) = gsn_csm_xy (wks,mon0,data(0,:),res) ; data(0,:) = plot_QBO1
plot(1) = gsn_csm_xy (wks,mon0,data(1,:),res) ; data(1,:) = plot_QBO2
plot(2) = gsn_csm_xy (wks,mon0,data(2,:),res) ;data(2,:) = plot_MEI
plot(3) = gsn_csm_xy (wks,mon0,data(3,:),res) ; data(3,:) = po3Anom(:,{20})
plot(4) = gsn_csm_xy (wks,mon0,data(4,:),res) ; data(4,:) = b@Yest
end do
;---Arrays to hold text annotation ids
txid_tr = new(5,graphic)
amid_tr = new(5,graphic)
txres = True
txres@txPerimOn = True
txres@txFontHeightF = 0.04
;---Top right string
amres_tr = True
amres_tr@amParallelPosF = 0.5 ; This is the right edge of the plot.
amres_tr@amOrthogonalPosF = -0.5 ; This is the top edge of the plot.
amres_tr@amJust = "TopRight"
Ti=(/"QBO1","QBO2","MEI","po3Anom","b@Yest"/)
do i=0,4
tr_label = Ti(i)
txres@txBackgroundFillColor = "Goldenrod"
txid_tr(i) = gsn_create_text(wks, tr_label, txres)
txres@txBackgroundFillColor = "LawnGreen" ; just for something different
;---Attach text strings to plot
amid_tr(i) = gsn_add_annotation(plot(i), txid_tr(i), amres_tr)
end do
pres=True
;pres@gsnPanelCenter=False
;pres@gsnPanelRowSpec=True
gsn_panel(wks,plot,(/5,1/),pres)
pres@lbLabelBarOn = True
pres@gsnPanelLabelBar = True
end
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