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Science & Tech.
Pradeep Kumar

08/06/21 15:40 PM IST

Estimation of black carbon over the Himalaya

In news

A new study will help accurate estimation of black carbon over the Himalaya, a key contributor to global warming & improve weather & climate predictions.

Finding 
  • A parameter called the mass absorption cross-section (MAC) specific to the Himalayan region that scientists have estimated.
  • It will also improve the performance of numerical weather prediction and climate models.
  • The researchers have derived the values of MAC – an essential parameter which is used for obtaining Black Carbon mass concentrations. 
  • It is found that these changes are caused by the seasonal variability of biomass burning, air mass variation, and meteorological parameters.
Significance
  • According to the ARIES team, these higher resolutions multi-wavelength and long-term observations used in calculating MAC will help improve the performance of numerical weather prediction and climate models in estimating the warming effects caused by BC emissions.
  • The precise knowledge on BC at various wavelengths will help in source apportionment studies done to constrain the sources of BC emissions.
  • This can thus serve as important information to form the mitigation policies.
Source: PIB

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