A5073705141- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Air Quality Monitoring and Forecasting
- Marine and coastal ecosystems
- Methane Hydrates and Related Phenomena
Wageningen University & Research
2019-2024
National Institute of Meteorology
2024
NOAA Chemical Sciences Laboratory
2020
University of Colorado Boulder
2020
Abstract. Dry deposition is an important removal mechanism for tropospheric ozone (O3). Currently, O3 to oceans in atmospheric chemistry and transport models (ACTMs) generally represented using constant surface uptake resistances. This occurs despite the role of solubility, waterside turbulence reacting with ocean water reactants such as iodide resulting substantial spatiotemporal variability concentrations marine boundary layers. We hypothesize that Arctic Ocean, having a relatively low...
Abstract. In Colombia, industrialization and a shift towards intensified agriculture have led to increased emissions of air pollutants. However, the baseline state quality in Colombia is relatively unknown. this study we aim assess with focus on spatial temporal variability atmospheric burden nitrogen oxides (NOx = NO + NO2) evaluate surface NOx, ozone (O3) carbon monoxide (CO) mixing ratios. We quantify magnitude distribution four major NOx sources (lightning, anthropogenic activities, soil...
<title>Abstract</title> In the central Arctic, warm and moist air intrusions (WAMIs) are increasingly prevalent during winter spring, significantly impacting near-surface energy budget. This study investigates WAMI-induced transport wet deposition of black carbon (BC) its subsequent influence on snow properties melting. Using a modeling approach combined with extensive observational data from 2019–2020 Multidisciplinary drifting Observatory for Study Arctic Climate (MOSAiC) expedition, we...
Dry deposition to the surface is one of main removal pathways tropospheric ozone (O3). We quantified for first time impact O3 Arctic sea ice on planetary boundary layer (PBL) concentration and budget using year-round flux observations from Multidisciplinary drifting Observatory Study Climate (MOSAiC) campaign simulations with a single-column atmospheric chemistry meteorological model (SCM). Based eddy-covariance observations, we find median resistance order 20,000 s m−1, resulting in dry...
Abstract. In Colombia, industrialization and a shift towards intensified agriculture have led to increased emissions of air pollutants. However, the baseline state quality in Colombia is relatively unknown. this study we aim assess with focus on spatial temporal variability atmospheric burden nitrogen oxides (NOx = NO + NO2) evaluate surface NOx, ozone (O3) carbon monoxide (CO) mixing ratios. We quantify magnitude distribution four major NOx sources (lightning, anthropogenic activities, soil...
Photochemical release of iodine from snow has been suggested as a source reactive to the Arctic atmosphere, however understanding underlying mechanism and potential strength is hindered by lack measurements concentration speciation in snow. Moreover, origin also unknown. Here, we report on sea ice at range depths 177 samples, representing 80 sampling events, December 2019 October 2020 collected during Multidisciplinary drifting Observatory for Study Climate (MOSAiC) expedition. We...
Abstract. Dry deposition is an important removal mechanism for tropospheric ozone (O3). Currently, O3 to oceans in atmospheric chemistry and transport models (ACTMs) generally represented using constant surface uptake resistances. This despite the fact that considering role of solubility, waterside turbulence reacting with ocean water reactants such as iodide dissolved organic matter results substantial spatiotemporal variability concentrations marine boundary layers. We hypothesize cold...
&lt;p&gt;Dry deposition is an important removal mechanism for tropospheric ozone (O&lt;sub&gt;3&lt;/sub&gt;). Its to oceans generally represented in atmospheric chemistry transport models using constant surface uptake resistances. However, observations show quite large spatiotemporal variability expressing differences solubility, waterside turbulence and O&lt;sub&gt;3&lt;/sub&gt; reacting with iodide dissolved organic matter. We hypothesize that the...