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edhill |
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# Ed Hill |
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# Thu Dec 18 13:51:19 EST 2003 |
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# Mask out wind forcing curl data over land (so only the sea data is |
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# left) using the WORLDBATH elevation data from Ingrid. |
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# URLs: |
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# http://iridl.ldeo.columbia.edu/expert/SOURCES/.TRENBERTH/.Annual/.taux |
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# http://iridl.ldeo.columbia.edu/expert/SOURCES/.TRENBERTH/.Annual/.taux |
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# http://ingrid.mit.edu/SOURCES/.WORLDBATH/.bath/ |
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matlab -nojvm |
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clear all |
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ncload('TRENBERTH_taux.cdf') |
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ncload('TRENBERTH_tauy.cdf') |
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cx = mod(X+360.0,360.0); |
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cy = Y; |
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origX = X; |
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origY = Y; |
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ncload('WORLDBATH_data.cdf') |
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bx = X; |
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by = Y; |
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clear X Y |
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mask = zeros(size(taux)); |
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nx = size(taux,2); |
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ny = size(taux,1); |
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ib = zeros(1,nx); |
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jb = zeros(1,ny); |
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for i = 1:nx, |
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ib(i) = round(mean([ max(find(bx < cx(i))) min(find(bx > cx(i))) ])); |
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end |
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for j = 1:ny, |
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jb(j) = round(mean([ max(find(by < cy(j))) min(find(by > cy(j))) ])); |
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end |
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b_tau = zeros(size(taux)); |
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for j = 1:ny, |
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b_tau(j,:) = bath(jb(j),ib); |
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end |
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b_mask = double(b_tau < -50.0); |
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surf(b_mask), view(2), shading interp |
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m_taux = taux .* b_mask; |
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m_tauy = tauy .* b_mask; |
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idu = 'tau_x'; |
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idv = 'tau_y'; |
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units = 'newtons/m2'; |
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desc = [ 'TRENBERTH tau data with a zero-mask over land.' ]; |
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ncname = [ 'TRENBERTH_tau_masked.nc' ]; |
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nc = netcdf(ncname, 'clobber'); |
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nc.reference = desc; |
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nc.author = 'Ed Hill <eh3@mit.edu>'; |
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nc.date = 'Dec 12, 2003'; |
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nc('lon') = length(cx); |
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nc('lat') = length(cy); |
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nc{'lon'} = 'lon'; |
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nc{'lat'} = 'lat'; |
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nc{ idu } = { 'lat', 'lon' }; |
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nc{ idv } = { 'lat', 'lon' }; |
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nc{'lon'}.uniquename = 'lon'; |
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nc{'lon'}.long_name = 'longitude'; |
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nc{'lon'}.gridtype = ncint(1); |
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nc{'lat'}.uniquename = 'lat'; |
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nc{'lat'}.long_name = 'latitude'; |
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nc{'lat'}.gridtype = ncint(0); |
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nc{'lon'}.units = 'degree_east'; |
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nc{'lat'}.units = 'degree_north'; |
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nc{ idu }.units = units; |
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nc{ idu }.long_name = idu; |
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nc{ idu }.missing_value = ncdouble(NaN); |
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nc{ idu }.FillValue_ = ncdouble(-9999.); |
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nc{ idv }.units = units; |
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nc{ idv }.long_name = idv; |
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nc{ idv }.missing_value = ncdouble(NaN); |
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nc{ idv }.FillValue_ = ncdouble(-9999.); |
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nc{'lon'}(:) = origX; |
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nc{'lat'}(:) = origY; |
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nc{ idu }(:) = m_taux; |
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nc{ idv }(:) = m_tauy; |
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nc = close(nc); |
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scp TRENBERTH_tau_masked.nc channel.mit.edu:/home/edhill/TRENBERTH_tau_masked/ |
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# AS ROOT ON channel.mit.edu : |
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cd /home/benno/ingrid/data/MIT/LOCAL/PEOPLE/EH3 |
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mkdir TRENBERTH_tau_masked |
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cd TRENBERTH_tau_masked |
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ln -s /home/edhill/TRENBERTH_tau_masked/* |
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% OK, *THIS* (below) is the correct format for Ingrid |
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desc = [ 'TRENBERTH tau data with a zero-mask over land.' ]; |
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ncname = [ 'TRENBERTH_tau_masked_XY.nc' ]; |
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nc = netcdf(ncname, 'clobber'); |
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nc.reference = desc; |
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nc.author = 'Ed Hill <eh3@mit.edu>'; |
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nc.date = 'Dec 12, 2003'; |
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nc('X') = length(cx); |
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nc('Y') = length(cy); |
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nc{'X'} = 'X'; |
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nc{'Y'} = 'Y'; |
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nc{ idu } = { 'Y', 'X' }; |
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nc{ idv } = { 'Y', 'X' }; |
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nc{'X'}.uniquename = 'X'; |
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nc{'X'}.long_name = 'longitude'; |
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nc{'X'}.gridtype = ncint(1); |
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nc{'Y'}.uniquename = 'Y'; |
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nc{'Y'}.long_name = 'latitude'; |
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nc{'Y'}.gridtype = ncint(0); |
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nc{'X'}.units = 'degree_east'; |
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nc{'Y'}.units = 'degree_north'; |
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nc{ idu }.units = units; |
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nc{ idu }.long_name = idu; |
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nc{ idu }.missing_value = ncdouble(NaN); |
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nc{ idu }.FillValue_ = ncdouble(-9999.); |
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nc{ idv }.units = units; |
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nc{ idv }.long_name = idv; |
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nc{ idv }.missing_value = ncdouble(NaN); |
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nc{ idv }.FillValue_ = ncdouble(-9999.); |
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nc{'X'}(:) = origX; |
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nc{'Y'}(:) = origY; |
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nc{ idu }(:) = m_taux; |
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nc{ idv }(:) = m_tauy; |
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nc = close(nc); |
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!scp TRENBERTH_tau_masked_XY.nc channel.mit.edu:/home/edhill/TRENBERTH_tau_masked/ |
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% Mask out (zero) a region for the Pacific basin |
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matlab -nojvm |
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clear all |
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ncload('TRENBERTH_curl_all.cdf') |
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cx = mod(X+360.0,360.0); |
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cy = Y; |
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origX = X; |
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origY = Y; |
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ncload('WORLDBATH_data.cdf') |
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bx = X; |
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by = Y; |
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clear X Y |
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mask = zeros(size(ratio)); |
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nx = size(ratio,2); |
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ny = size(ratio,1); |
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ib = zeros(1,nx); |
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jb = zeros(1,ny); |
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for i = 1:nx, |
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ib(i) = round(mean([ max(find(bx < cx(i))) min(find(bx > cx(i))) ])); |
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end |
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for j = 1:ny, |
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jb(j) = round(mean([ max(find(by < cy(j))) min(find(by > cy(j))) ])); |
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end |
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b_tau = zeros(size(ratio)); |
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for j = 1:ny, |
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b_tau(j,:) = bath(jb(j),ib); |
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end |
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b_mask = double(b_tau < -50.0); |
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surf(b_mask), view(2), shading interp |
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pacm = b_mask; |
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surf(pacm), view(2), shading interp |
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pacm(:,46:63) = 0.0; |
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pacm(64:72,1:50) = 0.0; |
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pacm(43:70,35:50) = 0.0; |
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pacm(40:70,40:50) = 0.0; |
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surf(pacm), view(2), shading interp |
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curlmasked = ratio .* pacm; |
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id = 'curl' |
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desc = [ 'TRENBERTH curl data with a zero-mask for Pacific Basin integration.' ]; |
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ncname = [ 'TRENBERTH_curl_masked.nc' ]; |
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nc = netcdf(ncname, 'clobber'); |
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nc.reference = desc; |
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nc.author = 'Ed Hill <eh3@mit.edu>'; |
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nc.date = 'Dec 12, 2003'; |
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nc('X') = length(cx); |
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nc('Y') = length(cy); |
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nc{'X'} = 'X'; |
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nc{'Y'} = 'Y'; |
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nc{ id } = { 'Y', 'X' }; |
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nc{'X'}.uniquename = 'X'; |
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nc{'X'}.long_name = 'longitude'; |
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nc{'X'}.gridtype = ncint(1); |
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nc{'Y'}.uniquename = 'Y'; |
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nc{'Y'}.long_name = 'latitude'; |
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nc{'Y'}.gridtype = ncint(0); |
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nc{'X'}.units = 'degree_east'; |
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nc{'Y'}.units = 'degree_north'; |
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nc{ id }.units = 'kilogram meter-2 second-2'; |
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nc{ id }.long_name = id; |
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nc{ id }.missing_value = ncdouble(NaN); |
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nc{ id }.FillValue_ = ncdouble(-9999.); |
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nc{'X'}(:) = origX; |
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nc{'Y'}(:) = origY; |
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nc{ id }(:) = curlmasked; |
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nc = close(nc); |
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!scp TRENBERTH_curl_masked.nc channel.mit.edu:/home/edhill/TRENBERTH_tau_masked/ |
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