Progetto "Re-evaluation and Homogenization of Aerosol Optical Depth Observations in Svalbard - ReHearsol" (M. Mazzola) (DTA.AD001.449)

Thematic area

Earth system science and environmental technologies

Project area

Structure responsible for the research project

Istituto di Scienze Polari (ISP)

Project manager

MAURO MAZZOLA
Phone number: 051-6399592
Email: mauro.mazzola@cnr.it

Abstract

The main purpose of this project is to integrate observations of atmospheric parameters of great importance for climate change (aerosol optical depth,aerosol Ångstrøm exponent,aerosol black carbon content) in and around Svalbard.These observations have been performed at different places and
with different instrument types,the analysis and data aggregation procedures of which follow different protocols.The long-term operation of most of these instruments in Ny-Ålesund allows an optimal homogenization of the various data sets under these challenging conditions (which may not be caught by the protocols designed for global operation).A successful completion of this project will provide an extremely valuable homogenized aerosol data set from potentially 3 sites over a time period of almost 30 years plus offshore observations over a 10-year period.We intend to provide this dataset to the SIOS Data Management System (SDMS) for network-wide use, e.g.,in Arctic climate and pollution studies.Moreover, the project will be an important contribution to advance efforts in the Ny-Ålesund Atmospheric flagship programme and its integration with atmospheric activities throughout the Svalbard

Goals

- Collect all AOD observations performed in Ny-lesund, Hornsund, possibly Barentsburg, and offshore so far;
- Systematically compare datasets from Ny-lesund village performed simultaneously at the highest possible time resolution; including new Ny-lesund AOD measurements (Cimel at AWIPEV, NILU Pandora at Sverdrup Station)
- Establish a unified AOD dataset for Ny-lesund by homogenizing AOD datasets (assessing calibration and retrieval differences among different instruments) and report on the uncertainty of the unified dataset);
- Compare Ny-lesund village observations with Zeppelin Observatory data, including both AOD and in-situ black carbon (BC) absorption measurements;
- Compare Hornsund Cimel observations with the Ny-lesund homogenized dataset;
- Link air mass directional clusters with AOD observations and identify local pollution and long-range transported pollution events;
- Propose a combined measurement strategy in order to minimize measurement gaps in the future.

Start date of activity

01/03/2020

Keywords

boundary layer, aerosol;, black carbon

Last update: 02/05/2024