edu.ucar.opensky::articles:26298 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T19:34:33.447068 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d76w9g1m https://doi.org/10.5067/GPMGV/OLYMPEX/MULTIPLE/DATA201 https Related Dataset #1 GPM Ground Validation UND Citation Cloud Microphysics OLYMPEX https://doi.org/10.5067/GPMGV/OLYMPEX/PROBES/DATA201 https Related Dataset #2 GPM Ground Validation NCAR Particle Probes OLYMPEX https://doi.org/10.5067/IMPACTS/DATA101 https Related Dataset #3 IMPACTS Field Campaign Data Collection https://doi.org/10.5281/zenodo.7803116 https Related Software #1 System for OAP Data Analysis Evaluation of polarimetric ice microphysical retrievals with OLYMPEX campaign data 2023-04-20T00:00:00Z publication https://n2t.org/ark:/85065/d76w9g1m https://doi.org/10.5194/amt-16-2089-2023 Blanke, A. author Heymsfield, Andrew J. author Moser, M. author Trömel, S. author UCAR/NCAR - Library publisher Polarimetric microphysical retrievals reveal a great potential for the evaluation of numerical models and data assimilation. However, the accuracy of ice microphysical retrievals is still poorly explored. To evaluate these retrievals and assess their accuracy, polarimetric radar measurements are spatially and temporally collocated with in situ aircraft measurements obtained during the OLYMPEX campaign (Olympic Mountain Experiment). Retrievals for ice water content (IWC), total number concentration N-t, and mean volume diameter D-m of ice particles are assessed by comparing an in situ dataset obtained by the University of North Dakota (UND) Citation II aircraft with X-band Doppler on Wheels (DOW) measurements. Sector-averaged range height indicator (RHI) scans are used to derive vertical profiles of microphysical retrievals. The comparison of these estimates with in situ data provides insights into strengths, weaknesses, and the accuracy of the different retrievals and quantifies the improvements in polarimetry-informed retrievals compared to conventional, non-polarimetric ones. In particular, the recently introduced hybrid ice water content retrieval exploiting reflectivity Z(H), differential reflectivity Z(DR), and specific differential phase KDP outperforms other retrievals based on either (Z(H), Z(DR)) or (Z(H), K-DP) or non-polarimetric retrievals in terms of correlations with in situ measurements and the root mean square error. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation