Quick Look

The datasets used for wind plots and analysis of wind components are NCEP reanalysis data. More information on the dataset it available in the section “Dataset Information”.

Summer Climatology

figure 1a: climatology of winds at 1000mbar pressure level in July

figure 1b: climatology of winds at 925mbar pressure level in July

figure 1c: climatology of winds at 850mbar pressure level in July

Winter Climatology

figure 2a: climatology of winds at 1000mbar pressure level in January

Download from web, wnd_1_925mb_clim.gif
figure 2b: climatology of winds at 925mbar pressure level in January

figure 2c: climatology of winds at 850mbar pressure level in January

Deviation from the Mean

figure 3: left: time series of the deviation of N-S wind component (v-wind) from the mean, plotted along longitude 55 degree East for the month of July and for the pressure levels 1000mbar (up), 925mbar (middle), 850mbar (low)
right: climatology of strength of v-wind, positive values signify a wind blowing from the South to the North. Plotted along latitude 55 deg East.

Change of the latitude where v=0 (movement of Inter Tropical Convergence Zone)

figure 4: time series of location of the point of zero v-wind (wind direction only in East-West direction) plotted for July only along latitudes 52.5 degree East (green) and 55 degree East (blue) for pressure levels: 1000mbar (up), 925mbar(middle), 850mbar(low).