edu.ucar.opensky::articles:43555 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T17:52:16.878290 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.net/ark:/85065/d7gh9pc8 https://doi.org/10.5065/D6057D42 https Related Dataset #1 CSET: NCAR HCR radar time series data. Version 1.0 https://doi.org/10.5065/D68914PH https Related Dataset #2 SOCRATES: NCAR HCR radar moments data. Version 4.0 https://doi.org/10.5065/D6CJ8BV7 https Related Dataset #3 CSET: NCAR HCR radar moments data. Version 4.0 https://doi.org/10.5065/D6D7998S https Related Dataset #4 SOCRATES: NCAR HCR radar time series data. Version 1.0 https://doi.org/10.5065/D6QF8R1H https Related Dataset #5 NOREASTER: NCAR HCR radar moments data. Version 3.0 Processing of Doppler spectra collected by an airborne cloud radar for the calculation of skewness, kurtosis, and other spectral parameters 2025-04-01T00:00:00Z publication https://n2t.net/ark:/85065/d7gh9pc8 https://doi.org/10.1029/2024EA004105 Romatschke, Ulrike author Romatschke, P. author Hayman, Matthew author Dixon, Michael J. author UCAR/NCAR - Library publisher Observations from the HIAPER Cloud Radar (HCR) are used to develop a methodology to calculate Doppler spectra from an airborne platform. The method removes spectral noise and corrects the spectra for broadening caused by aircraft motion. The spectra are filtered using an objectively optimized filtering technique. The de&#8208;noised and corrected spectra are used to calculate qualitatively improved spectrum width, skewness, and kurtosis. These higher&#8208;order moments are supplemented by other spectral parameters such as edge&#8208;to&#8208;edge width, left and right spectral slope, and left&#8208; and right&#8208;edge velocity. Regions with dual&#8208;peak spectra are also identified. The higher&#8208;order moments and other spectral parameters highlight cloud features that are not apparent in the lower&#8208;order moments reflectivity and Doppler velocity. They provide additional information which can be used to derive cloud microphysical and kinematic properties as they reduce the ambiguity of radar observations. The processing technique is applied to observations collected in different climatic regions ranging from the tropics to the Southern Ocean. It proves robust and produces high&#8208;quality observations for a wide range of cloud types. 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 <span style="font-family:Arial;font-size:10pt;font-style:normal;" data-sheets-root="1">Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.</span> None eng geoscientificInformation