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13 results for “HONO”
The IASI/Metop pyrogenic HONO product v2
<p>This dataset comprises the version 2 of the pyrogenic HONO product retrieved from IASI/Metop-A (Oct 2007 - Sept 2021), IASI/Metop-B (March 2013 - Sept 2023), and IASI/Metop-C (Sept 2019 - Sept 2023) using the Artificial Neural Network for IASI (ANNI) version 4 retrieval scheme. Each day with successful pyrogenic HONO detections is represented by a .nc file per instrument. For detailed information on the HONO product, please refer to Franco et al. (2023) <em>"Pyrogenic HONO seen from space: insights from global IASI observations"</em> (ACP, submitted), and for a description of the ANNI v4 retrievals, please consult Clarisse et al. (2023) <em>"The IASI NH3 version 4 product: averaging kernels and improved consistency"</em> (AMT, <a href="https://doi.org/10.5194/amt-16-5009-2023">https://doi.org/10.5194/amt-16-5009-2023</a>). Prior to using this dataset, we recommend reaching out to the main developers Bruno Franco (<a href="mailto:bruno.franco@ulb.be">bruno.franco@ulb.be</a>) and Lieven Clarisse (<a href="mailto:lieven.clarisse@ulb.be">lieven.clarisse@ulb.be</a>) for guidance and information on more recent product versions.</p> <p>Compared to v1, IASI HONO product v2 contains more realistic error estimates related to the uncertainties on the fire plume altitude.</p>
HONO observations at the Corsica island
<p>HONO observations during the 2013 ChArMEx field campaig at the Corsica Island</p>
Exploring the HONO source during the COVID-19 pandemic in a megacity in China
<p>HONO concentrations were measured using an atmospheric HONO online detector (TiH300, Focused Photonics., China). An automatic weather station (QXZ1.0, Yigu Technologies, China) was used to observe temperature, relative humidity, wind direction, and wind speed. PM<sub>2.5</sub> was analyzed using a tapered element oscil-lating microbalance (Model 1400a, Thermo Electron, USA). Ozone (O<sub>3</sub>) was monitored using UV absorption (TE, Model 49i, Waltham, USA), while carbon monoxide (CO) was quantified using a gas filter correlation/non-dispersive infrared analyzer (TE, Model 48i, Waltham,USA). Nitrogen oxides (NO-NO<sub>2</sub>-NO<em><sub>x</sub></em>) were measured using an ammonia analyzer (AQMS-650, Focused Photonics, China). Photolysis rates of HCHO, NO<sub>2</sub>, H<sub>2</sub>O<sub>2</sub>, NO–3, and HONO were measured using an atmospheric photolysis rate analyzer (PFS-100, Focused Photonics, China). An ambient ion monitor (URG-9000D, Thermo Fisher Scientific, USA) was used to obtain the hourly mass concentrations of NO–3.</p>
Strong HONO Emissions from Dew and Guttation Evaporation Trigger Severe Photochemical Pollution Formation
<p>Data for the manuscript "Strong HONO Emissions from Dew and Guttation Evaporation Trigger Severe Photochemical Pollution Formation" by Xu et al.</p>
Measurement Report: Exchange Fluxes of HONO over Agricultural Fields in the North China Plain
<p>Raw data for Song et al. submitted to ACP.</p>
Snow-Induced Perturbations in Nitrous Acid (HONO) Levels: Insights into Heterogeneous Reactions During Wintertime in Mid-Latitude Regions
<ol> <li>Variations in HONO, PM2.5, NO2, and HONO/NO2 concentrations data</li> <li>Time series data of pollutants</li> </ol>
Gridded HONO emission inventory in mainland China
<p>We produce and provide a HONO emission inventory in mainland China in 2016. The emission inventory have been developed with 1/12 by 1/12 degree spatial resolution. The unit of the emission inventory is t/grid/year. </p>
Mobile MAX-DOAS measurements for emission quantifications and source analysis of NO2, HCHO and HONO during Chengdu 2021 FISU World University Games
<p>The shared data includes the spatial distribution of NO2, HCHO and HONO measured by moving MAX-DOAS during the Chengdu 2021 FISU World University Games</p>
Vertical profiles of aerosol, NO2, H2O and HONO in Hefei and its surrounding agricultural fields
<p>Average aerosol vertical profiles exhibited a Gaussian shape above 100 m with maximum values of 0.67 km<sup>-1</sup> and 0.55 km<sup>-1</sup> at 300-400 m layer at AHU and CF, respectively. The distinct layered structure mainly attributed to regional transport. Average H<sub>2</sub>O and NO<sub>2</sub> vertical profiles all showed a Gaussian shape and an exponential shape at AHU and CF, respectively. Moreover, the diurnal evolution of H<sub>2</sub>O profiles performed one peak and bi-peak patterns at AHU and CF, respectively, whereas NO<sub>2</sub> at two stations all exhibited bi-peak patterns attributed to vehicle emissions. Average HONO vertical profiles showed an exponential shape and a Gaussian shape at AHU and CF, respectively. Higher HONO (> 0.05 ppb) above 1.0 km at 14:00-16:00 was observed at CF.</p>
Driving factors of HONO and their synergy in Hohhot, a semi-arid city in northern China: Insights from interpretable machine learning approaches
<p>Research data includes air pollutants observation data and meteorological parameters data.</p>
Measurement report: Surface exchange fluxes of HONO during the growth process of paddy fields in the Huaihe River Basin, China
<p>Raw data for Meng et al. submitted to ACP.</p>
Measurement Report: The observation of atmospheric HONO by wet-rotating-denuder ion chromatograph in a coastal city: Influencing factors and corrective function
<p>The details are also available upon request from the corresponding author (<a href="mailto:jschen@iue.ac.cn">jschen@iue.ac.cn</a>)</p>
Scripts for the publication "HONO production via the heterogeneous reaction between NO2 and diesel soot: role of environmentally persistent free radicals"
<p>Access only for reviewers until manuscript acceptance.</p>
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