[ncl-talk] month_to_season
Najib Yusuf
najibgal at yahoo.com
Tue May 31 04:24:00 MDT 2022
Dear Dennis,
It works. Thank you so much. I only modified x = o3x_surf
xSea_surf(0,:,:) = (x(0,:,:) + x(1,:,:) + x(11,:,:) )/3.0 ; Jan, Feb, Dec
xSea_surf(1,:,:) = (x(2,:,:) + x(3,:,:) + x( 4,:,:) )/3.0 ; Mar, Apr, May
xSea_surf(2,:,:) = (x(5,:,:) + x(6,:,:) + x( 7,:,:) )/3.0 ; Jun, Jul, Aug
xSea_surf(3,:,:) = (x(8,:,:) + x(9,:,:) + x(10,:,:) )/3.0 ; Sep. Oct Nov
xSea_surf(0,:,:) = (o3x_surf(0,:,:) + o3x_surf(1,:,:) + o3x_surf(11,:,:) )/3.0 xSea_surf(1,:,:) = (o3x_surf(2,:,:) + o3x_surf(3,:,:) + o3x_surf(4,:,:) )/3.0 xSea_surf(2,:,:) = (o3x_surf(5,:,:) + o3x_surf(6,:,:) + o3x_surf(7,:,:) )/3.0 xSea_surf(3,:,:) = (o3x_surf(8,:,:) + o3x_surf(9,:,:) + o3x_surf(10,:,:) )/3.0
I really appreciate you. Thank you
------------------------------------
Najib Yusuf Galadanci Ph.D.
Assistant Director (R & D)
Lower Atmospheric Dynamics
(Aerosol radiative forcing, air quality observations and modeling)
Centre for Atmospheric Research
National Space Research and Development Agency. Kogi State
University Campus, Anyigba. Kogi State. Nigeria
+234 80 3871 4158
------------------------------------Know that Victory comes with Patience, Relief with Affliction, and Ease with Hardship.
Prophet Muhammad Rasulullah
On Monday, May 30, 2022, 11:10:49 PM GMT+1, Dennis Shea <shea at ucar.edu> wrote:
month_to_season Computes each year's seasonal mean. Multiple years are expected. Not one year.
minLat = -35 maxLat = 35
minLon = -30
maxLon = 60
f = addfiles(fili, "r")
o3x_surf = f[:]->O3(:,55,:,:) ; input only surface
o3x_surf = o3x_surf*1.e+09 ; units change
;;o3x_surf at units = "..."
printVarSummary(o3x_surf) ; (time,lat,lon) ; lon: 0->360; time=12
print("==========================================")
; reorder longitudes
o3x_surf := lonFlip(o3x_surf)
print("++++++++++++++++++++++++++++++++++++++++++")
print(" AFTER LONGITUDE REORDER ")
print("++++++++++++++++++++++++++++++++++++++++++")
printVarSummary(o3x_surf) ; (time,lat,lon) ; lon: -180->180; time=12
; Simple/Crude climatological seasonal mean from a 12-month climatology
xSea_surf = o3x_surf(0:11:3,:,:) ; trick; create array with meta data
printVarSummary(xSea_surf) ; (4,lat,lon)
print("==========")
xSea_surf(0,:,:) = (x(0,:,:) + x(1,:,:) + x(11,:,:) )/3.0 ; Jan, Feb, Dec
xSea_surf(1,:,:) = (x(2,:,:) + x(3,:,:) + x( 4,:,:) )/3.0 ; Mar, Apr, May
xSea_surf(2,:,:) = (x(5,:,:) + x(6,:,:) + x( 7,:,:) )/3.0 ; Jun, Jul, Aug
xSea_surf(3,:,:) = (x(8,:,:) + x(9,:,:) + x(10,:,:) )/3.0 ; Sep. Oct Nov
printMinMax(xSea_surf(0,:,:), True) ; DJF
printMinMax(xSea_surf(1,:,:), True) ; MAM
printMinMax(xSea_surf(2,:,:), True) ; JJA
printMinMax(xSea_surf(3,:,:), True) ; SON
print("==========")
; PLOT
On Mon, May 30, 2022 at 4:52 PM Najib Yusuf <najibgal at yahoo.com> wrote:
I tried it but as you said there is something unusual, I got this error in subscript #1 "nyear", I looked at the summary of the variable and tried with "1" but yet got this error;
plot1 = gsn_csm_contour_map_ce(wks,xSea(0,nyear,0,0),res)
fatal:Subscript out of range, error in subscript #1fatal:An error occurred reading xSeafatal:["Execute.c":8635]:Execute: Error occurred at or near line 103
ncl 104> plot1 = gsn_csm_contour_map_ce(wks,xSea(0,nyear,:,:),res)fatal:Subscript out of range, error in subscript #1fatal:An error occurred reading xSea
Could you please look at my data in this directory: /glade/scratch/najiby/
ncl 0> spec_units = ("ppb")ncl 1> factor = (/1.e+09/)ncl 2> wkdir = "/glade/scratch/najiby/"ncl 3> diri = "/glade/scratch/najiby/"ncl 4> fili = systemfunc("ls "+diri+"f.e20.FSCD_FullEmissNig.cam.h0.2013*.nc")ncl 5> print(fili)ncl 6> minLat = -35ncl 7> maxLat = 35ncl 8> minLon = -30ncl 9> maxLon = 60ncl 10>ncl 11> f = addfiles(fili, "r")ncl 12> o3x_surf = f[:]->O3(:,55,:,:) ; input only surfacencl 13> o3x_surf = o3x_surf*1.e+09 ; units changencl 14> ;;o3x_surf at units = "..."ncl 15> printVarSummary(o3x_surf)
Variable: o3x_surfType: floatTotal Size: 2654208 bytes 663552 valuesNumber of Dimensions: 3Dimensions and sizes: [time | 12] x [lat | 192] x [lon | 288]Coordinates: time: [2953..3287] lat: [ -90.. 90] lon: [ 0..358.75]Number Of Attributes: 5 lev : 992.5000106104562 mdims : 1 units : mol/mol long_name : O3 concentration cell_methods : time: meanncl 16> o3x_surf := lonFlip(o3x_surf)ncl 17> printVarSummary(o3x_surf)
Variable: o3x_surfType: floatTotal Size: 2654208 bytes 663552 valuesNumber of Dimensions: 3Dimensions and sizes: [time | 12] x [lat | 192] x [lon | 288]Coordinates: time: [2953..3287] lat: [ -90.. 90] lon: [-180..178.75]Number Of Attributes: 6 lev : 992.5000106104562 mdims : 1 units : mol/mol long_name : O3 concentration cell_methods : time: mean lonFlip : longitude coordinate variable has been reordered via lonFlipncl 18> date = f[:]->datencl 19> printVarSummary(date)
Variable: dateType: integerTotal Size: 48 bytes 12 valuesNumber of Dimensions: 1Dimensions and sizes: [time | 12]Coordinates: time: [2953..3287]Number Of Attributes: 1 long_name : current date (YYYYMMDD)ncl 20> print(date)ncl 21> nyear = dimsizes(date)/12 ; number of yearsncl 22> xSea = month_to_seasonN(o3x_surf,(/"DJF","MAM","JJA","SON"/))ncl 23> printVarSummary(xSea)
Variable: xSeaType: floatTotal Size: 884736 bytes 221184 valuesNumber of Dimensions: 4Dimensions and sizes: [season | 4] x [time | 1] x [lat | 192] x [lon | 288]Coordinates: season: [DJF..SON] time: [2953..2953] lat: [ -90.. 90] lon: [-180..178.75]Number Of Attributes: 7 lonFlip : longitude coordinate variable has been reordered via lonFlip cell_methods : time: mean long_name : Seasonal Means: O3 concentration units : mol/mol mdims : 1 lev : 992.5000106104562 _FillValue : 9.96921e+36
Thank you for always helping.
------------------------------------
Najib Yusuf Galadanci Ph.D.
Assistant Director (R & D)
Lower Atmospheric Dynamics
(Aerosol radiative forcing, air quality observations and modeling)
Centre for Atmospheric Research
National Space Research and Development Agency. Kogi State
University Campus, Anyigba. Kogi State. Nigeria
+234 80 3871 4158
------------------------------------Know that Victory comes with Patience, Relief with Affliction, and Ease with Hardship.
Prophet Muhammad Rasulullah
On Monday, May 30, 2022, 02:14:23 PM GMT+1, Dennis Shea <shea at ucar.edu> wrote:
As I noted in my 1st response, "there may be errors" because I did it very quickly.
Still, something is unusual. I didn't have your data file(s). try the following
month_to_season computes the seasonal mean for *each year*.
This is *not* a climatological seasonal mean.**********************************************************************************
begin
; read model data
spec_units = ("ppb")
factor = (/1.e+09/)
wkdir = "/glade/scratch/najiby/"
diri = "/glade/scratch/najiby/"
fili = systemfunc("ls "+diri+"f.e20.FSCD_FullEmissNig.cam.h0.2013*.nc")
print(fili)
print("==========================================")
minLat = -35
maxLat = 35
minLon = -30
maxLon = 60
f = addfiles(fili, "r")
o3x_surf = f[:]->O3(:,55,:,:) ; input only surface
o3x_surf = o3x_surf*1.e+09 ; units change
;;o3x_surf at units = "..."
printVarSummary(o3x_surf) ; (time,lat,lon) ; lon: 0->360
print("==========================================")
; reorder longitudes
o3x_surf := lonFlip(o3x_surf)
print("++++++++++++++++++++++++++++++++++++++++++")
print(" AFTER LONGITUDE REORDER ")
print("++++++++++++++++++++++++++++++++++++++++++")
printVarSummary(o3x_surf) ; (time,lat,lon) ; lon: -180->180
date = f[:]->date
print("==========================================")
;;printVarSummary(date)
print(date) ; (time)
print("==========================================")
nyear = dimsizes(date)/12 ; number of years
print("nyear="+nyear)
print("==========================================")
;-------------------------------------------------------
; season average for ** EACH YEAR ** This is NOT a climatological average
xSea = month_to_seasonN(o3x_surf,(/"DJF","MAM","JJA","SON"/))
printVarSummary(xSea) ; (4,nyr,lat,lon)
; DJF -> (0,nyear,lat,lon) for EACH year [time-> nyr]
; MAM -> (1,nyear,lat,lon) for EACH year
; JJA -> (2,nyear,lat,lon) for EACH year
; SON -> (3,neayr,lat,lon) for EACH year
On Sun, May 29, 2022 at 12:51 PM Najib Yusuf <najibgal at yahoo.com> wrote:
Dear Dennis,
Thank you. I did as you said and I know have (time,lat,lon) atributes and xSea_surf [season | 4] x (time | 1] x [lat | 192] x [lon | 288), the subscripting is a bit confusing. However, I used these to plot:
res at gsnLeftString = "DJF_dry cold"
plot1 = gsn_csm_contour_map_ce(wks,xSea_surf(0,{-35:35},{-30:60}),res)
res at gsnLeftString = "MAM_dry warm"
plot2 = gsn_csm_contour_map_ce(wks,xSea_surf2(1,:,:),res)
but got error of subscripting then I tried this to have 4 subscripts (seas,time,lat,lon) I still got error
res at gsnLeftString = "DJF_dry cold"
plot1 = gsn_csm_contour_map_ce(wks,xSea_surf(0,:,{-35:35},{-30:60}),res)
res at gsnLeftString = "MAM_dry warm"
plot2 = gsn_csm_contour_map_ce(wks,xSea_surf2(1,1,:,:),res)
Variable: xSea_surfType: floatTotal Size: 884736 bytes 221184 valuesNumber of Dimensions: 4Dimensions and sizes: [season | 4] x [time | 1] x [lat | 192] x [lon | 288]Coordinates: season: [DJF..SON] time: [2953..2953] lat: [ -90.. 90] lon: [-180..178.75]Number Of Attributes: 7 lonFlip : longitude coordinate variable has been reordered via lonFlip mdims : 1 units : mol/mol long_name : Seasonal Means: O3 concentration cell_methods : time: mean lev : 992.5000106104562 _FillValue : 9.96921e+36fatal:Number of subscripts do not match number of dimensions of variable,(3) Subscripts used, (4) Subscripts expectedfatal:["Execute.c":8637]:Execute: Error occurred at or near line 143 in file month_to_seasO3.ncl
Kindly, help me out.
Thank you so much.
------------------------------------
Najib Yusuf Galadanci Ph.D.
Assistant Director (R & D)
Lower Atmospheric Dynamics
(Aerosol radiative forcing, air quality observations and modeling)
Centre for Atmospheric Research
National Space Research and Development Agency. Kogi State
University Campus, Anyigba. Kogi State. Nigeria
+234 80 3871 4158
------------------------------------Know that Victory comes with Patience, Relief with Affliction, and Ease with Hardship.
Prophet Muhammad Rasulullah
On Friday, May 27, 2022, 01:46:31 PM GMT+1, Dennis Shea <shea at ucar.edu> wrote:
[2]
o3x_surf = o3x(0,55,:,:)
printVarSummary(o3x_surf) ; TWO dimension (lat,lon); NO 'time' dimension
I think you want
o3x_surf = o3x(:,55,:,:) ; (time,lat,lon)----------------
You have
Variable: o3x_surfNumber of Dimensions: 2Dimensions and sizes: [lat | 192] x [lon | 288] <=== NO TIME DIMENSION
You must do as I suggested:
o3x_surf = o3x(:,55,:,:) ; (time,lat,lon)printVarSummary(o3x_surf)
You must have a time dimension
On Fri, May 27, 2022 at 7:03 AM Najib Yusuf <najibgal at yahoo.com> wrote:
Dear Dennis,
I have done as you advise, 1 to 5 all work out, thank you, but I had to do this first:
o3x_surf_flip := lonFlip(o3x_surf)
printVarSummary(o3x_surf_flip) ,,,,,,,and it works, prior to the seasons average but the xSea_surf (below)
xSea_surf = month_to_seasonN(o3x_surf_flip,(/"DJF","MAM","JJA","SON"/)) printVarSummary(xSea_surf)
is giving this error:
(0) contributed: month_to_seasonN: rank=2(0) ----- rank currently not handled -----(0) contributed: month_to_season12: rank=2(0) ----- rank currently not handled -----fatal:Illegal right-hand side type for assignment
I haven't seen this rank error before. Please help out.
Thank you
Summary of variablesVariable: o3xType: floatTotal Size: 148635648 bytes 37158912 valuesNumber of Dimensions: 4Dimensions and sizes: [time | 12] x [lev | 56] x [lat | 192] x [lon | 288]Coordinates: time: [2953..3287] lev: [1.867879997007549..992.5000106104562] lat: [ -90.. 90] lon: [ 0..358.75]Number Of Attributes: 4 mdims : 1 units : mol/mol long_name : O3 concentration cell_methods : time: mean
Variable: o3x_surfType: floatTotal Size: 221184 bytes 55296 valuesNumber of Dimensions: 2Dimensions and sizes: [lat | 192] x [lon | 288]Coordinates: lat: [ -90.. 90] lon: [ 0..358.75]Number Of Attributes: 6 lev : 992.5000106104562 time : 2953 cell_methods : time: mean long_name : O3 concentration units : mol/mol mdims : 1(0) O3 concentration (mol/mol) : min=3.61245 max=77.7517
Variable: o3x_surf_flipType: floatTotal Size: 221184 bytes 55296 valuesNumber of Dimensions: 2Dimensions and sizes: [lat | 192] x [lon | 288]Coordinates: lat: [ -90.. 90] lon: [-180..178.75]Number Of Attributes: 7 lev : 992.5000106104562 time : 2953 cell_methods : time: mean long_name : O3 concentration units : mol/mol mdims : 1 lonFlip : longitude coordinate variable has been reordered via lonFlip
Variable: xMonType: integerTotal Size: 48 bytes 12 valuesNumber of Dimensions: 1Dimensions and sizes: [time | 12]Coordinates: time: [2953..3287]Number Of Attributes: 1 long_name : current date (YYYYMMDD)
Variable: xMonType: integerTotal Size: 48 bytes 12 valuesNumber of Dimensions: 1Dimensions and sizes: [time | 12]Coordinates: time: [2953..3287]Number Of Attributes: 1 long_name : current date (YYYYMMDD)(0) 20130201(1) 20130301(2) 20130401(3) 20130501(4) 20130601(5) 20130701(6) 20130801(7) 20130901(8) 20131001(9) 20131101(10) 20131201(11) 20140101(0) contributed: month_to_seasonN: rank=2(0) ----- rank currently not handled -----(0) contributed: month_to_season12: rank=2(0) ----- rank currently not handled -----fatal:Illegal right-hand side type for assignmentfatal:["Execute.c":8637]:Execute: Error occurred at or near line 8300 in file $NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl
fatal:["Execute.c":8637]:Execute: Error occurred at or near line 55 in file month_to_seasO3.ncl
------------------------------------
Najib Yusuf Galadanci Ph.D.
Assistant Director (R & D)
Lower Atmospheric Dynamics
(Aerosol radiative forcing, air quality observations and modeling)
Centre for Atmospheric Research
National Space Research and Development Agency. Kogi State
University Campus, Anyigba. Kogi State. Nigeria
+234 80 3871 4158
------------------------------------Know that Victory comes with Patience, Relief with Affliction, and Ease with Hardship.
Prophet Muhammad Rasulullah
On Friday, May 27, 2022, 11:58:25 AM GMT+1, Najib Yusuf <najibgal at yahoo.com> wrote:
Dear Dennis,
I have done as you advise, 1 to 5 all work out, thank you, but I had to do this first:
o3x_surf_flip := lonFlip(o3x_surf)
printVarSummary(o3x_surf_flip) ,,,,,,,and it works, prior to the seasons average but the xSea_surf (below)
xSea_surf = month_to_seasonN(o3x_surf_flip,(/"DJF","MAM","JJA","SON"/)) printVarSummary(xSea_surf)
is giving this error:
(0) contributed: month_to_seasonN: rank=2(0) ----- rank currently not handled -----(0) contributed: month_to_season12: rank=2(0) ----- rank currently not handled -----fatal:Illegal right-hand side type for assignment
I haven't seen this rank error before. Please help out.
Thank you
------------------------------------
Najib Yusuf Galadanci Ph.D.
Assistant Director (R & D)
Lower Atmospheric Dynamics
(Aerosol radiative forcing, air quality observations and modeling)
Centre for Atmospheric Research
National Space Research and Development Agency. Kogi State
University Campus, Anyigba. Kogi State. Nigeria
+234 80 3871 4158
------------------------------------Know that Victory comes with Patience, Relief with Affliction, and Ease with Hardship.
Prophet Muhammad Rasulullah
On Thursday, May 26, 2022, 03:36:37 PM GMT+1, Dennis Shea <shea at ucar.edu> wrote:
It is always best to examine the variable's structure via printVarSummary(...)
[1]
o3x = f[:]->O3
printVarSummary(o3x) ; I speculate 4 dimensions (time,level,lat,lon)
[2]
o3x_surf = o3x(0,55,:,:)
printVarSummary(o3x_surf) ; TWO dimension (lat,lon); NO 'time' dimension
I think you want
o3x_surf = o3x(:,55,:,:) ; (time,lat,lon)
[3]
; seasons average at surface
xDJF = month_to_seasonN(o3x,(/"DJF","MAM","JJA","SON"/))
printVarSummary(xDJF) ; I speculate (4,lat,lon)
The name xDJF implies a one season mean for DJF but it is not.
I think it should contain 4 seasonal means
I think you should name it xSea for 'season'
xSea_surf = month_to_seasonN(o3x_surf,(/"DJF","MAM","JJA","SON"/))
printVarSummary(xSea_surf) ; I speculate (4,lat,lon)
[4]
The following creates a scalar variable of type string
o3x_surf1 = "DJF"
print(03x_surf1)
I have no idea why you are doing this.
***This has no spatial information.*** It cannot be plotted on a map.
[5]
The rest is too confusing to explain.
To get to the 'answer'
xSea_surf(4,lat,lon)
has spatial coordinates:
lat: [ -90.. 90]
lon: [ 0..358.75]
You must use lonFlip to get longitudes to get the -180->180 range
xSea_surf := lonFlip(xSea_surf)
printVarSummary(xSea_surf) ; look at 'new' coordinates
-- res at gsnLeftString = "DJF_dry cold"
plot1 = gsn_csm_contour_map_ce(wks,xSea_surf(0,{-35:35},{-30:60}),res)
res at gsnLeftString = "MAM_dry warm"
plot2 = gsn_csm_contour_map_ce(wks,xSea_surf2(1,:,:),res)
etc
=======
I did this VERY QUICKLY. there may be errors but you shuld have the idea of how to proceed.
Good Luck
On Thu, May 26, 2022 at 6:59 AM Najib Yusuf via ncl-talk <ncl-talk at mailman.ucar.edu> wrote:
Dear NCL experts and colleagues,
I have an error with the subscripting in the attached script while trying to plot spatial distribution month_to_season surface Ozone model data. I did try to change my subscripting to solve the error but seems beyond my little understanding of subscripting in ncl. Kindly assist.
Variable: o3x_surfType: floatTotal Size: 221184 bytes 55296 valuesNumber of Dimensions: 2Dimensions and sizes: [lat | 192] x [lon | 288]Coordinates: lat: [ -90.. 90] lon: [ 0..358.75]Number Of Attributes: 6 lev : 992.5000106104562 time : 2953 cell_methods : time: mean long_name : O3 concentration units : mol/mol mdims : 1(0) O3 concentration (mol/mol) : min=3.61245 max=77.7517
Variable: xMonType: integerTotal Size: 48 bytes 12 valuesNumber of Dimensions: 1Dimensions and sizes: [time | 12]Coordinates: time: [2953..3287]Number Of Attributes: 1 long_name : current date (YYYYMMDD)
Variable: xMonType: integerTotal Size: 48 bytes 12 valuesNumber of Dimensions: 1Dimensions and sizes: [time | 12]Coordinates: time: [2953..3287]Number Of Attributes: 1 long_name : current date (YYYYMMDD)(0) 20130201(1) 20130301(2) 20130401(3) 20130501(4) 20130601(5) 20130701(6) 20130801(7) 20130901(8) 20131001(9) 20131101(10) 20131201(11) 20140101fatal:Number of subscripts do not match number of dimensions of variable,(2) Subscripts used, (1) Subscripts expectedfatal:["Execute.c":8637]:Execute: Error occurred at or near line 137 in file month_to_seasO3.ncl
------------------------------------
Najib Yusuf Galadanci Ph.D.
Assistant Director (R & D)
Lower Atmospheric Dynamics
(Aerosol radiative forcing, air quality observations and modeling)
Centre for Atmospheric Research
National Space Research and Development Agency. Kogi State
University Campus, Anyigba. Kogi State. Nigeria
+234 80 3871 4158
------------------------------------Know that Victory comes with Patience, Relief with Affliction, and Ease with Hardship.
Prophet Muhammad Rasulullah
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