eprintid: 33558
rev_number: 16
eprint_status: archive
userid: 7512
dir: disk0/00/03/35/58
datestamp: 2023-07-24 08:49:59
lastmod: 2023-07-31 07:35:50
status_changed: 2023-07-24 08:49:59
type: doctoralThesis
metadata_visibility: show
creators_name: Maier, Fabian Manuel
title: Estimating fossil fuel carbon dioxide (ffCO2) emissions
in the Rhine Valley metropolitan region
from local atmospheric observations in Heidelberg
subjects: ddc-530
divisions: i-130500
adv_faculty: af-13
keywords: atmospheric transport inversion, fossil fuel CO2 emissions, radiocarbon, carbon monoxide, point source emissions
cterms_swd: Kohlenstoffkreislauf
cterms_swd: Atmosphärischer Transport
cterms_swd: CO2
abstract: This cumulative dissertation investigates the potential of radiocarbon (14C)-based and carbon
monoxide (∆CO)-based fossil fuel CO2 (∆ffCO2) estimates from the urban observation site
Heidelberg to deduce the seasonal cycle of the ffCO2 emissions in the Rhine Valley. For
this, the CarboScope inversion system is used to investigate the benefit of few but accurate
14C-based ∆ffCO2 estimates from about 100 hourly flask samples collected in 2019 and 2020,
compared to a continuous ∆CO-based ∆ffCO2 record with about 4 times larger uncertainty.
The urban observation site with large ffCO2 point sources in the vicinity places special
demands on the transport model. Therefore, a method is developed for the high-resolution
Weather Research and Forecasting - Stochastic Time-Inverted Lagrangian Transport model
(WRF-STILT) to represent the effective emission heights of point sources. This work shows
that the 14C-based ∆ffCO2 observations contain the seasonal cycle of the ffCO2 emissions,
but do not lead to robust inversion results. In contrast, the continuous ∆CO-based ∆ffCO2
estimates provide robust and data-driven seasonal cycles that show the distinct COVID-19
signal in 2020 and are suitable for validating the amplitude and phasing of the seasonal cycle
of the emission inventories in the main footprint of Heidelberg.
date: 2023
id_scheme: DOI
id_number: 10.11588/heidok.00033558
ppn_swb: 1853919195
own_urn: urn:nbn:de:bsz:16-heidok-335585
date_accepted: 2023-07-12
advisor: HASH(0x5608d3c98c68)
language: eng
bibsort: MAIERFABIAESTIMATING2023
full_text_status: public
place_of_pub: Heidelberg
citation:   Maier, Fabian Manuel  (2023) Estimating fossil fuel carbon dioxide (ffCO2) emissions in the Rhine Valley metropolitan region from local atmospheric observations in Heidelberg.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/33558/1/Dissertation_Fabian_Maier_final.pdf