Daily News Analysis

Novel technique to detect tropical cyclones

9th June, 2021 Science and Technology

GS PAPER III: Science and Technology- developments and their applications and effects in everyday life.

Context: Indian Scientists have found a promising technique for early detection of development or strengthening of tropical cyclones in the atmospheric column prior to satellite detection over ocean surface in North Indian Ocean region.

  • Early detection of Tropical cyclones has wide socio-economic implications.
  • So far, remote sensing techniques have detected them the earliest. However, this detection was possible only after system developed as a well-marked low-pressure system over the warm ocean surface.
  • A larger time gap between the detection and the impact of the cyclone could help preparation activities.
  • Prior to the formation of cyclonic system over the warm oceanic environment, the initial atmospheric instability mechanism, as well as the vortex development, is triggered at higher atmospheric levels.
  • These cyclonic eddies are prominent features in the vertical atmospheric column encompassing the disturbance environment with a potential to induce and develop into a well-marked cyclonic depression over the warm ocean surface.
  • They could be used for detection of prediction of cyclones
  • The method developed by the scientists’ aims to identify initial traces of pre-cyclonic eddy vortices in the atmospheric column and track its Spatio-temporal evolution.
  • The technique was found to have potential for early detection of tropical cyclogenesis in the atmospheric column prior to satellite detection over ocean surface.

https://pib.gov.in/PressReleasePage.aspx?PRID=1725487