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185 results for “cirrus”
Cirrus formation regimes - Data driven identification and quantification of mineral dust effect
<p>This repository contains the data for the paper: </p> <p>Authors: Kai Jeggle , David Neubauer , Hanin Binder and Ulrike Lohmann<br>Titel: Cirrus formation regimes - Data driven identification and quantification of mineral dust effect<br>Date: 2024</p> <p>Note that the scripts can be found in the accompanying code repository (https://github.com/tabularaza27/cloud_clustering)<br><br>Contents:<br><br>├── cirrus_cloud_trajectories.ftr<br>├── cluster_input_data.ftr<br>├── cluster_models<br>│ └── temperature_clustering_k4_12<br>│ ├── cloud_ids.npy<br>│ ├── model_params.json<br>│ └── trained_model.hdf5</p> <p>│ └── temperature_clustering_k4_24<br>│ ├── cloud_ids.npy<br>│ ├── model_params.json<br>│ └── trained_model.hdf5</p> <p>├── cluster_predictions.ftr<br>└── readme.txt<br><br>For more info, please have a look at the <em>readme.txt</em><br><br>This is an updated version of the data, containing updated models and predictions based on the Journal revisions</p>
Model simulation data used in "Exploring the uncertainties in the aviation soot-cirrus effect" (Righi et al., Atmos. Chem. Phys., 2021)
<p>This dataset contains the output of the EMAC global model simulations analysed and discussed in Righi et al. (<i>Atmos. Chem. Phys.</i>, 2021). For details see the README.md file and Table 1 in the paper.</p>
Data for the "Cirrus cloud thinning using a more physically-based ice microphysics scheme in the ECHAM-HAM GCM" manuscript
<p>This repository contains the post-processed data files for plotting and interpreting the results of "Cirrus cloud thinning using a more physically-based ice microphysics scheme in the ECHAM-HAM GCM" study.</p> <p>The files are all netCDF4 except for the analysis files that show global mean values in a .txt format.</p> <p>The Version 3 & Version 4 tar files are smaller than Version 2 as we performed some code clean-up for some post-processing scripts that excluded redundant data files that were very large and that were not used for plotting or the analysis for the manuscript.</p>
Data for the "Technical Note: assessing predicted cirrus ice properties between two deterministic ice formation parameterizations" manuscript
<p>This repository contains the post-processed ECHAM-HAM data files for comparing KM21_GCM and ML20 of "Technical Note: assessing predicted cirrus ice properties between two deterministic ice formation parameterizations" study.</p> <p>The files are all netCDF4.</p>
Data for the "Does prognostic seeding along flight tracks produce the desired effects of cirrus cloud thinning?" manuscript
<p>Tar file of the data used to prepare the plots and write the text in: "Does prognostic seeding along flight tracks produce the desired effects of cirrus cloud thinning?" manuscript for submission to ACP.</p> <p>A description of each netcdf file is provided in the README file. The format of each file is in netcdf4</p>
Radiative transfer calculation results for Arctic cirrus
<p>Data of the figure content from the radiative transfer calculations in the publication Marsing, Meerkötter et al: Investigating the radiative effect of Arctic cirrus measured in situ during the winter 2015/2016</p> <p>Preprint DOI: https://doi.org/10.5194/acp-2022-395</p>
Above-anvil Cirrus Plume Producing Storm Tracks
<p>Two separate CSV files containing all warm and cold above-anvil cirrus plume-producing storm tracks used in Murillo and Homeyer (under review). These files contain the hourly storm number, binary above-anvil cirrus plume flag, date and time in UTC, longitude, and latitude positions of the overshooting top associated with the above-anvil cirrus plume-producing storm. The first and second rows contain the variable names and units, respectively, with the remaining rows containing the variable values.</p> <p> </p>
Dataset: Cirrus Logic, Inc. (CRUS) Stock Performance
This dataset provides historical stock market performance data for specific companies. It enables users to analyze and understand the past trends and fluctuations in stock prices over time. This information can be utilized for various purposes such as investment analysis, financial research, and market trend forecasting.
The role of mineral dust aerosol particles in aviation soot-cirrus interactions
<p>The files contain the datasets shown in the publication "The role of mineral dust aerosol particles in aviation soot-cirrus interactions" to appear in J. Geophys. Res. Atmos. (revised manuscript submitted) The files are xmgrace plot files containing the research data (ASCII) shown in all figures that appear in the main text (4) and appendix (2).</p> <p> </p>
Understanding cirrus clouds using explainable machine learning
<p>This repository contains the data for the paper:</p> <p>Authors: Kai Jeggle , David Neubauer , Gustau Camps-Valls and Ulrike Lohmann<br> Titel: Understanding cirrus clouds using explainable machine learning<br> Date: 2023</p> <p>Note that the scripts can be found in the accompanying package (https://github.com/tabularaza27/explaining_cirrus)</p>
First observational evidence of the relationship between the tropospheric temperature and cirrus cloud occurrence over India
<p>This dataset contains the normalized relative backscatter (NRB) coefficients and cloud fractions observed using Micro Pulse Lidar over Kattankulathur (12.82<sup>o</sup>N, 80.04<sup>o</sup>E ) presented in the paper.</p> <p> </p> <p> </p>
Figure 1. - Paracreptotremarosenthali sp. n. A Ventral view of holotype; arrows indicate fragments of eyespot pigment B Cirrus sac; arrow indicates anteriormost margin of acetabulum. Scale bars: A = 250 µm; B = 25 µm.
Figure 1. - Paracreptotremarosenthali sp. n. A Ventral view of holotype; arrows indicate fragments of eyespot pigment B Cirrus sac; arrow indicates anteriormost margin of acetabulum. Scale bars: A = 250 µm; B = 25 µm.
Data for: Low temperature ice nucleation of sea spray and secondary marine aerosols under cirrus cloud conditions
<p>Sea spray aerosols (SSA) represent one of the most abundant aerosol types on a global scale and have been observed at all altitudes including the upper troposphere. SSA has been explored in recent years as a source of ice nucleating particles (INPs) in cirrus clouds due to the ubiquity of cirrus clouds and the uncertainties in their radiative forcing. This study expands upon previous works on low temperature ice nucleation of SSA by investigating the effects of atmospheric aging of SSA and the ice nucleating activity of newly formed secondary marine aerosols (SMA) using an oxidation flow reactor. Polydisperse aerosol distributions were generated from a Marine Aerosol Reference Tank (MART) filled with 120 L of real or artificial seawater and were dried to very low relative humidity to crystallize the salt constituents of SSA prior to their subsequent freezing, which was measured using a Continuous Flow Diffusion Chamber (CFDC). Results show that for both primary SSA (pSSA), and the aged SSA and SMA (aSSA+SMA) at temperatures > 220 K, homogeneous conditions (92–97 % relative humidity with respect to water (RHw)) were required to freeze 1 % of the particles. However, below 220 K, heterogeneous nucleation occurs for both pSSA and aSSA+SMA at much lower RHw, where up to 1 % of the aerosol population freezes between 75–80 % RHw. Similarities between freezing behaviors of the pSSA and aSSA+SMA at all temperatures suggest that the contributions of condensed organics onto the pSSA or alteration of functional groups in pSSA via atmospheric aging did not hinder the major heterogeneous ice nucleation process at these cirrus temperatures that has previously been shown to be dominated by the crystalline salts. Occurrence of 1% frozen fraction of SMA, generated in the absence of primary SSA, was observed at/near water saturation below 220 K, suggesting it is not an effective INP at cirrus temperatures, similar to findings in the literature of other organic aerosols. Thus, any SMA coatings on the pSSA would only decrease the ice nucleation behavior of pSSA if the organic components were able to significantly delay water uptake of the inorganic salts, and apparently, this was not the case. Results from this study demonstrate the ability of lofted primary sea spray particles to remain an effective ice nucleator at cirrus temperatures, even after atmospheric aging has occurred over a period of days in the marine boundary layer prior to lofting. We were not able to address aging processes under upper tropospheric conditions.</p>
Impact of host climate model on contrail cirrus effective radiative forcing estimates
<p>Data to reproduce the figures in the article 'Impact of host climate model on contrail cirrus effective radiative forcing estimates'.</p>
" Description and evaluation of a new contrail cirrus 2 parameterization in the ARPEGE-Climat atmospheric 3 model " datasets
<p>This repository contains the data files used for the analyses presented in the paper. The dataset includes variables of interest for the two main simulations (CONTFREE and CONTNUDGED) for the year 2019. </p> <ul> <li>"totcon" variable represents the integrated contrail cirrus coverage.</li> <li>"rst", respectively "rstcotra", represent the net downward shortwave radiation at the top of the atmosphere for the radiative call with contrails perturbation, respectively without perturbation. The difference between these two variables provides the contrail cirrus net downward shortwave radiation contribution. </li> <li>"rlut", respectively "rlutcotra", represent the net upward longwave radiation at the top of the atmosphere for the radiative call with contrails perturbation, respectively without perturbation. The difference between these two variables provides the contrail cirrus net upward longwave radiation contribution. </li> <li>"pissr" represents the probability of the gridbox being ice supersaturated. This variable is provided for pressure levels 200,225, and 250hPa.</li> <li>"clhcalipso" represents the integrated coverage of "high clouds" (>400hPa). </li> </ul>
figures_and_data_for_manuscript_contrail_formation_within_cirrus_Verma_and_Burkhardt_07032022
<p>This data set includes figures and data used in the revised manuscript 'Contrail formation within cirrus'.</p>
Photos data for "Revealing Halos Concealed by CIrrus Clouds"
<p>Original photo data which are shown on the figures in the manuscript, "Revealing Hlaos Concealed by Cirrus Clouds".</p>
Figure 1 in First record and new depth range extension of the curled Picarel, Centracanthus cirrus (Sparidae) from the Sea of Marmara, Turkey
Figure 1. - Location map of capture of Centracanthus cirrus specimen in the Sea of Marmara, Turkey.
Figure 2 in First record and new depth range extension of the curled Picarel, Centracanthus cirrus (Sparidae) from the Sea of Marmara, Turkey
Figure 2. - Centracanthus cirrus caught from Sea of Marmara (Picture: M.L. Artüz).
Numerical simulation of supercell thunderstorms (at 50 meter resolution) associated with above anvil cirrus plumes
<p>Four-dimensional data from high-resolution simulations (50 meter grid spacing) of supercell thunderstorms conducted on the Frontera supercomputer are contained in this archive. Output from two simulations is included, named "Strong" and "Weak". In the Strong simulation, data from parcel trajectories is also included. </p> <p>The four-dimensional (time, and three dimensions of space) data and parcel data is saved in Network Common Data Format (NetCDF), version 4, an open-source self-describing scientific data format commonly used in the atmospheric sciences. </p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.