01-05 December 2025
INCOIS, Hyderabad, India.
| Abstract Submission No. | ABS-07-0348 |
| Title of Abstract | Towards the development of an aerosol sampling network for the Indian Ocean |
| Authors | Alex Baker, Andrew Bowie, Peter Croot, Suzanne Fietz, Cecile Guieu, Douglas Hamilton, Ashwini Kumar, Morgane Perron, Garima Shukla* |
| Organisation | CSIR-National Institute of Oceanography, Goa |
| Address | CSIR-National Institute of Oceanography Panaji, Goa, India Pincode: 403004 E-mail: ashwinik@nio.res.in |
| Country | India |
| Presentation | Poster |
| Abstract | Over the last few decades there has been a significant increase in atmospheric pollutants in Asia, Africa, and Oceania due to the rapid growth in industrial and agricultural activity. Much of this new atmospheric load has been transported to, and deposited in, the Indian Ocean, where it can influence primary productivity and modulate biogeochemical cycling in the ocean. While satellite remote sensing data have greatly enhanced our ability to track the transport pathways of pollution plumes as they move over the ocean, they do not yet provide information on trace elemental composition, which is necessary for determining fluxes as inputs to Earth System Models. Currently the majority of the data acquired in the Indian Ocean on the elemental concentration of aerosols has been gained during shipboard surveys (often as part of activities connected to IIOE and IIOE-2) and from sporadic coastal time series stations. However, shipboard surveys are expensive and provide limited spatial and temporal coverage. This situation has led to poor spatiotemporal data coverage for the Indian Ocean region and significant knowledge gaps around the deposition fluxes of elements to the Indian Ocean. In this context, SCOR (https://scor-int.org/ ) working group 167 Reducing Uncertainty in Soluble aerosol Trace Element Deposition (RUSTED) (https://scor-int.org/group/reducing-uncertainty-in-soluble-aerosol-trace-element-deposition-rusted/ ) identifies an opportunity now within the UN Decade of Ocean Science to build on recent research carried out in the Indian Ocean within the SCOR projects, IIOE-2 (https://iioe-2.incois.gov.in/IIOE-2/index.jsp ) SOLAS (https://www.solas-int.org/ ) and GEOTRACES (https://www.geotraces.org/ ), to initiate a program towards establishing an international baseline aerosol sampling network across the Indian Ocean using shore based stations, most likely linked to existing meteorology facilities and standardized protocols. This presentation will outline the current situation in the Indian Ocean for aerosol sampling and invite researchers from around the Indian Ocean basin to co-develop this initiative further with us. |
| Are you part of IIOE-2 endorsed project | no |
| Keywords | Aerosols, time-series, trace elements, RUSTED, Indian Ocean |
| For Awards | yes |
| Date Of Birth | 08-08-1981 |
| ECSN Registration Number | IIOE2-ECSN-043 |