Monsoon Updates

Bay of Bengal Boundary Layer Experiment (BoBBLE)


From UPSC perspective, the following things are important :

Prelims level : BoBBLE

Mains level : Indian monsoon and its prediction

A team from IISc Bengaluru and UK based researchers has created a blueprint for accurate prediction of monsoon, tropical cyclones and another weather-related forecast under the BoBBLE Experiment.

Aspirants must note:

1) BoBBLE is headed by which organizations?

2) Its purpose and application

What is BoBBLE?

  • The Bay of Bengal Boundary Layer Experiment or BoBBLE in short is a project funded by Union Ministry of Earth Sciences and the Natural Environment Research Council of UK.
  • BoBBLE tries to determine, quantify and model ocean-atmosphere interactions that drive variability in the South Asian monsoon.
  • The experiment created a blueprint for future weather system observational experiments for accurately forecasting monsoon rainfall.

Why need BoBBLE?

  • The Bay of Bengal (BoB) plays a fundamental role in controlling the weather systems that make up the South Asian summer monsoon system.
  • In particular, the southern BoB has cooler sea surface temperatures (SST) that influence ocean-atmosphere interaction and impact the monsoon.
  • Compared to the southeastern BoB, the southwestern BoB is cooler, more saline receives much less rain, and is influenced by the summer monsoon current (SMC).
  • To examine the impact of these features on the monsoon, the BoB Boundary Layer Experiment (BoBBLE) was undertaken.


1) How technology development in monsoon forecasting can benefit realizing the dream of doubling farmers income by 2022?

2) Discuss the role of Bay of Bengal in monsoon dynamics. (Hint: the link between the two lies in Indian Ocean Dipole (IOD))

How is the experiment carried out?

  • BoBBLE will deploy two ships, six ocean gliders and eight floats to collect an unprecedented range of oceanic and air-sea flux observations.
  • These will occupy locations in the southwest and southeast Bay, as well as tracing east-west and north-south paths between those locations, measuring ocean temperature, salinity and currents.

With inputs from

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3 years ago

আবহাওযা খবর জানা কৃষকদের খুব পযোজন


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