adc15e30-e310-4523-8d46-a3bf2f75ed02 Mauro Mazzola CNR mauro.mazzola@cnr.it 2025-11-12T09:14:22 ISO 19139 1.0 WGS84 Long-term variabilities of ice nucleating particles in the Arctic: Insights from measurements and model simulations from Ny-Ålesund 2025-11-06 https://metadata.iadc.cnr.it/geonetwork/srv/api/records/adc15e30-e310-4523-8d46-a3bf2f75ed02 Aerosol particles that can aid the formation of ice crystals in clouds are known as ice nucleating particles (INPs). These particles play a critical role in Arctic cloud formation and regional climate. However, it remains challenging for global climate models (GCMs) to well represent Arctic INPs. To understand the biases in the GCMs, we compare simulated results from a GCM with long-term meteorological, aerosol, and INP measurements at one surface station in Ny-Ålesund, Svalbard. We find that the simulated aerosol properties are biased from the observations within one order of magnitude, due to uncertainties in modeling physical and chemical aerosol processes. Using soil samples collected from Ny-Ålesund, we derived a new fit that relates local HLD with INP concentrations. This fit shows strong ice nucleating ability at warm temperatures, indicating the presence of organic matter in local HLD. Incorporating the new fit for local HLD INPs along with parameterizations representing INPs from other terrestrial and marine sources, our model reproduces measured INP concentrations reasonably well. Our comparison highlights the importance of local HLD to the Arctic INP population. Our findings emphasize the need for long-term Arctic measurements and better representation of HLD in GCMs to improve the understanding in Arctic INP properties and their role in Arctic cloud formation. Meteorological and aerosol size distribution data used in the submitted manuscript. Mauro Mazzola CNR-ISP mauro.mazzola@cnr.it Mauro Mazzola CNR-ISP mauro.mazzola@cnr.it Atmospheric conditions GEMET - INSPIRE themes, version 1.0 2008-01-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme HUMIDITY AEROSOL PARTICLE PROPERTIES BOUNDARY LAYER TEMPERATURE ATMOSPHERIC WINDS ATMOSPHERIC PRESSURE BOUNDARY LAYER WINDS AEROSOLS SURFACE WINDS AIR TEMPERATURE GCMD - Science Keywords 2015-01-01 geonetwork.thesaurus.external.theme.gcmd-sciencekeywords THERMOMETERS Hygrometers ANEMOMETERS BAROMETERS Spectrometers GCMD - Instruments 2023-10-17 geonetwork.thesaurus.external.instrument.gcmd-instruments ARCTIC SVALBARD AND JAN MAYEN GCMD - Locations 2023-10-17 geonetwork.thesaurus.external.place.gcmd-locations ITALY GCMD - Providers 2023-10-17 geonetwork.thesaurus.external.dataCentre.gcmd-providers Chemistry and physics of the atmosphere IADC Research Activities 2023-10-17 geonetwork.thesaurus.external.theme.iadc-research-activities ATMOSPHERE INTERACT Topic Categories 2024-10-14 geonetwork.thesaurus.local.theme.INTERACTTopicCategories Creative-Commons CC BY-NC-SA 4.0 IADC Italian Arctic Data Center 1 climatologyMeteorologyAtmosphere 11.86 11.90 78.9155 78.923 2018-03-01 2019-12-31 Italian Arctic Data Center (IADC) https://www.cnr.it https://data.iadc.cnr.it/erddap/griddap/92cc6d0f-8ab6-438c-b38b-d549a01cc12b WWW:LINK-1.0-http--opendap OPeNDAP URL Monthly mean aerosol number concentrations in 2 size bins https://data.iadc.cnr.it/erddap/tabledap/ad560423-dbfa-4182-b55c-0f4826004ec5 WWW:LINK-1.0-http--opendap OPeNDAP URL Particle (aerosol) size distribution https://data.iadc.cnr.it/erddap/tabledap/66f7b6c1-995c-4617-a688-ad1fb45f1002 WWW:LINK-1.0-http--opendap OPeNDAP URL Climate Change Tower meteorological data at minute resolution https://data.iadc.cnr.it/erddap/tabledap/d0852967-fce4-49fe-abe2-1c274de5e942 WWW:LINK-1.0-http--opendap OPeNDAP URL Volume equivalent diameters and bin widths for the PSD 10.71761/adc15e30-e310-4523-8d46-a3bf2f75ed02 DOI Digital Object Identifier (DOI) COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2025-11-06 This data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services true Provides acquisition of the meteorological parameters and aerosol size distribution.