Monsoon Updates

Bay of Bengal Boundary Layer Experiment (BoBBLE)

Note4Students

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.

BONUS:

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 http://www.walker.ac.uk/research/projects/bay-of-bengal-boundary-layer-experiment-bobble/

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Chiranjit Panja
5 months ago

আবহাওযা খবর জানা কৃষকদের খুব পযোজন