Enhanced Light‐Absorption of Black Carbon in Rainwater Compared With Aerosols Over the Northern Indian Ocean

Black carbon (BC) aerosols affect climate, especially in high aerosol loading regions such as South Asia. A key uncertainty for the climate effects of BC is the evolution of light‐absorbing properties in the atmosphere. Here, we present a year‐round comparison of the mass absorption cross section (MAC; 678 nm) of BC in air (PM 10 ) and rain, for samples collected at the Maldives Climate Observatory at Hanimaadhoo. We develop a filter‐loading...