Ground-based mobile measurements to track urban methane emissions from natural gas in twelve cities across eight countries

Combined use of atmospheric and other data streams to constrain natural fluxes and anthropogenic fossil fuel emissions through Carbon Cycle Fossil Fuel Data Assimilation

Assessing the impact of atmospheric CO2 and NO2 measurements from space on estimating city-scale fossil fuel CO2 emissions in a data assimilation system

The European Copernicus programme plans to install a constellation of multiple polar orbiting satellites (Copernicus Anthropogenic CO2 Monitoring Mission, CO2M mission) for observing atmospheric CO2 content with the aim to estimate fossil fuel CO2 emissions. We explore the impact of potential CO2M observations of column-averaged CO2 (XCO2),...

Impact of lockdowns and winter temperatures on natural gas consumption in Europe

As the COVID-19 virus spread over the world, governments restricted mobility to slow transmission. Public health measures had different intensities across European countries but all had significant impact on people's daily lives and economic activities, causing a drop of CO2 emissions of about 10% for the whole year 2020. Here, we analyze...

Review: Particulate matter emissions from aircraft

The contribution of aircraft operations to ambient ultrafine particle (UFP) concentration at and around airports can be significant. This review article considers the volatile and non-volatile elements of particulate matter emissions from aircraft engines, their characteristics and quantification and identifies gaps in knowledge. The current...

Eindrapport data onderzoek mobiele machines in Nederland

In 2020 heeft TNO van het Ministerie van Infrastructuur en Waterstaat (IenW) opdracht gekregen om een onderzoek uit te voeren naar de samenstelling van het mobiele machinepark in Nederland. Dit rapport geeft de resultaten van dat onderzoek.

Analysis of the Anthropogenic and Biogenic NOx Emissions Over 2008–2017: Assessment of the Trends in the 30 Most Populated Urban Areas in Europe

We use the OMI-QA4ECV-v1.1 NO2 tropospheric columns over the 10-year 2008–2017 period to confront satellite-based trends in NO2 concentrations to those from the state-of-the-art regional chemistry-transport model CHIMERE and to evaluate the bottom-up anthropogenic and biogenic NOx emissions in Europe. A focus is made for the 30 most populated...

CAMS-REG-v4: a state-of-the-art high-resolution European emission inventory for air quality modelling (Preprint)

This paper presents a state-of-the-art anthropogenic emission inventory developed for the European domain for a 18-year time series (2000–2017) at a 0.1° × 0.05° grid, specifically designed to support air quality modelling. The main air pollutants are included: NOx, SO2, NMVOC, NH3, CO, PM10 and PM2.5 and also CH4. To stay as close as possible...

TNO emissiefactoren 2021 voor AERIUS 2021

TNO emissiefactoren voor zeevaart en binnenvaart voor AERIUS 2021

AUB (AdBlue verbruik, Uren, en Brandstofverbruik): een robuuste schatting van NOx en NH3 uitstoot van mobiele werktuigen

RIVM heeft TNO gevraagd om een door TNO gebruikte methodiek uit te werken die het bepalen van de NOx en NH3 emissies van mobiele werktuigen vereenvoudigd in AERIUS. De huidige methodiek in AERIUS is gebaseerd op de aanpak die in de Emissieregistratie werd toegepast. Met nieuwe inzichten uit nieuwe metingen is deze aanpak in de Emissieregistratie...

The impact of temporal variability in prior emissions on the optimization of urban anthropogenic emissions of CO2, CH4 and CO using in-situ observations

Constraining urban emissions is gaining more attention because of the important role of cities in reaching na tional climate mitigation targets. Urban inverse modelling studies could constrain emissions of large hotspots, but still face many challenges. It has been argued that more detailed information is needed on both atmospheric transport and...

Decarbonisation options for the offshore natural gas industry

The offshore production of natural gas (NG) in the Netherlands has significantly decreased over the last years due to the depletion of the existing reserves and the lack of feasible economic prospective locations against an environment of low NG prices. Therefore, operators have focused their efforts on lowering their operating costs in order to...

Onderbouwing AERIUS emissiefactoren voor wegverkeer, mobiele werktuigen, binnenvaart en zeevaart

Wegvoertuigen, schepen, mobiele werktuigen, en andere bronnen binnen de sector Verkeer en Vervoer, zoals vliegtuigen en treinen, leveren schadelijke emissies. TNO is verantwoordelijk voor het bijhouden van de laatste inzichten op dit gebied. Deze worden onder meer verkregen door het doen van metingen van praktijkemissies en via internationale...

Optimizing a dynamic fossil fuel CO2 emission model with CTDAS (CarbonTracker Data Assimilation Shell, v1.0) for an urban area using atmospheric observations of CO2, CO, NOx, and SO2

We present a modelling framework for fossil fuel CO2 emissions in an urban environment, which allows constraints from emission inventories to be combined with atmospheric observations of CO2 and its co-emitted species CO, NOx , and SO2. Rather than a static assignment of average emission rates to each unit area of the urban domain, the fossil...

Uncertainty analysis of a European high-resolution emission inventory of CO2 and CO to support inverse modelling and network design

Quantification of greenhouse gas emissions is receiving a lot of attention because of its relevance for climate mitigation. Complementary to official reported bottomup emission inventories, quantification can be done with an inverse modelling framework, combining atmospheric transport models, prior gridded emission inventories and a network of...

Life cycle assessment of sisal fibre – Exploring how local practices can influence environmental performance

Sisal fibre can potentially replace glass fibre in natural fibre composites. This study focuses on the environmental performance of sisal fibre production by quantifying the greenhouse gas (GHG) emissions and energy use of producing sisal fibre in Tanzania and Brazil using life cycle assessment (LCA), based on region-specific inventory data. The...

Milieuprofielen van scheepsbrandstoffen ten behoeve van opname in de Nationale Milieudatabase

Ten behoeve van duurzaam inkopen heeft RWS TNO gevraagd om milieuprofielen op te stellen van een aantal (scheeps-)brandstoffen te weten: • Scheepsbrandstoffen, voor toepassing in baggerschepen op de Noordzee en in Nederlandse havens: • HFO (Heavy Fuel Oil) • MDO (Marine Diesel Oil) • GTL (Gas-To-Liquid) • HVO (Hydrotreated Vegetable Oil) • LNG ...