Source-receptor matrix calculation for deposited mass with the Lagrangian particle dispersion model FLEXPART v10.2 in backward mode

Autor(en)

Sabine Eckhardt, Massimo Cassiani, Nikolaos Evangeliou, Espen Sollum, Ignacio Pisso, Andreas Stohl

Abstrakt

Existing Lagrangian particle dispersion models are capable of establishing source-receptor relationships by running either forward or backward in time. For receptor-oriented studies such as interpretation of "point" measurement data, backward simulations can be computationally more efficient by several orders of magnitude. However, to date, the backward modelling capabilities have been limited to atmospheric concentrations or mixing ratios. In this paper, we extend the backward modelling technique to substances deposited at the Earth's surface by wet scavenging and dry deposition. This facilitates efficient calculation of emission sensitivities for deposition quantities at individual sites, which opens new application fields such as the comprehensive analysis of measured deposition quantities, or of deposition recorded in snow samples or ice cores. This could also include inverse modelling of emission sources based on such measurements. We have tested the new scheme as implemented in the Lagrangian particle dispersion model FLEXPART v10.2 by comparing results from forward and backward calculations. We also present an example application for black carbon concentrations recorded in Arctic snow.

Organisation(en)

Institut für Meteorologie und Geophysik

Externe Organisation(en)

Norwegian Institute for Air Research

Journal

Geoscientific Model Development

Band

10

Seiten

4605-4618

Anzahl der Seiten

14

ISSN

1991-959X

DOI

https://doi.org/10.5194/gmd-10-4605-2017

Publikationsdatum

12-2017

Peer-reviewed

Ja

ÖFOS 2012

105206 Meteorologie

ASJC Scopus Sachgebiete

Modelling and Simulation, Allgemeine Erdkunde und Planetologie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/a20abbc3-abde-4043-91c7-46261c47eedc