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114 results for “disdrometer”
EPFL EPFL_ROOF_2011 10 disdrometer station data
Disdrometer measurements of the EPFL EPFL_ROOF_2011 10 station. This dataset is part of the DISDRODB project. Station metadata are available at https://github.com/ltelab/disdrodb-data/blob/main/DISDRODB/Raw/EPFL/EPFL_ROOF_2011/metadata/10.yml . The software to easily process and standardize the raw data into netCDF files is available at https://github.com/ltelab/disdrodb .
disdrometer raw data
<p>Parsivel2 disdrometric raw dataset for 4 years in ASCII </p>
Observational dataset of snowfall events in 20160121 and 20180104 by polarimetric radar and 2-dimensional vedio disdrometer
<p>Observational dataset of snowfall events in 20160121 and 20180104 by polarimetric radar and 2-dimensional vedio disdrometer used for the Manuscript: "Potential of Snowfall Nowcasting Using Polarimetric Radar Data and Its Link to Ice Microphysics: Study of Two Snowstorms in East China". QVP.zip represents the quasi-vertical profiles composited from NUIST CPOL at the 19.5-degree elevation. VAD.zip is the velocity azimuth displays (VADs) estimated from radar volume scans, using the method by Matejka and Srivastava (1991). Traj_ele_1p5.zip is the reflectivity factor at the trajectory final location estimated by VAD winds at the 1.5-degree elevation. Snow_data.zip is the observations of snow particles by NJU 2DVD. The files that end with .pkl can be read by python joblib module. The files that end with .nc are in Netcdf format.</p>
polarimetric radar and disdrometer data - mat
<p>The dataset contains polarimetric radar and disdrometer observations of Meiyu rainfall in Eastern China.</p>
Validation of GPM Precipitation Products by Comparison with Ground-Based Parsivel Disdrometers over Jianghuai Region
<p>This file provides the disdrometer data and GPM data used in our research, along with some codes used for plots.</p>
Particle size and velocity distributions from an OTT Parsivel optical disdrometer located at Mario Zucchelli Station, aggregated to 5min, monthly netCDF archive
<p>Disdrometric data from an OTT Parsivel with 32 size classes and 32 velocity classes located at Mario Zucchelli Station (Antarctica, -74.6945 N, 164.1152 E, 15 m a.s.l.). Mid values and widths of the classes are provided. Spectra are sampled every 5 minutes (after merging five 1-minute measurements) and saved in monthly netCDF files. Note that this data has been processed regardless of precipitation type. Particle Size distribution (PSD) is calculated for every data entry. Monthly cumulated spectra and PSD are also provided.</p> <p>Metadata available at <a href="https://antarcticdatacenter.cnr.it/geonetwork/srv/api/records/ed6ea5bf-3f59-467b-9914-f4db387bb55d">https://antarcticdatacenter.cnr.it/geonetwork/srv/api/records/ed6ea5bf-3f59-467b-9914-f4db387bb55d</a></p> <p>--------------------------------------------------------------------</p> <p>Example of netCDF file structure:</p> <p> </p> <h2>File "MZS_PAR_201612_5min.nc"</h2> <pre><strong> dimensions</strong>: <em>diameter </em>= 32; <em>velocity </em>= 32; <em>time </em>= UNLIMITED; // (7488 currently) <strong>variables</strong>: long <em>time_UTC</em>(time=7488); :description = "Measurement time. Timestamp indicates the end of the observation interval, e.g. 01-Mar-2020 00:05:00 represents the particle counts registered between 01-Mar-2020 00:00:01 and 01-Mar-2020 00:05:00."; :time_zone = "UTC"; :units = "Seconds since 1970-01-01 00:00:00 (Unix time)."; :_ChunkSizes = 512U; // uint float <em>diameters</em>(diameter=32); :description = "Mid values of the size classes"; :units = "mm"; float <em>velocities</em>(velocity=32); :description = "Mid values of the velocity classes"; :units = "m s^-1"; float <em>diameters_width</em>(diameter=32); :description = "Width of the size classes"; :units = "mm"; float <em>velocities_width</em>(velocity=32); :description = "Width of the velocity classes"; :units = "m s^-1"; int <em>spectrum</em>(diameter=32, velocity=32, time=7488); :description = "Matrix of particle counts in each of the 32 diameter sizes and 32 velocity ranges over 5 minutes."; :units = "counts"; :_ChunkSizes = 32U, 32U, 1U; // uint float <em>PSD</em>(diameter=32, time=7488); :description = "Particle size distribution, 5 minutes interval, normalized by the observed volume."; :units = "m^-3 mm^-1"; :_ChunkSizes = 32U, 1U; // uint double <em>monthlySpectrum</em>(diameter=32, velocity=32); :description = "Matrix of particle counts in each of the 32 diameter sizes and 32 velocity ranges over the entire month."; :units = "counts"; double <em>monthlyPSD</em>(diameter=32); :description = "Particle size distribution for the whole month, normalized by the observed volume."; :units = "m^-3 mm^-1"; // <strong>global attributes</strong>: :<em>title </em>= "OTT Parsivel disdrometer data, aggregated to 5min, monthly netCDF archive."; :<em>comment </em>= "Particle counts diveded in 32 size classes and 32 velocity classes. Note that this data has been processed regardless of precipitation type."; :<em>time_label </em>= "Dec 2016"; :<em>institution </em>= "CNR-ISAC, Rome (IT)"; :<em>contact_person </em>= "Luca Baldini, CNR-ISAC, Rome, l.baldini@isac.cnr.it"; :<em>source </em>= "OTT Parsivel disdrometer at MZS (Antarctica)"; :<em>location </em>= "Mario Zucchelli Station (74°42\'S, 164°07\'E, 15 m a.s.l.)"; :<em>author </em>= "Giacomo Roversi, Ca\' Foscari University, Venice (IT) and CNR-ISAC, Rome (IT), g.roversi@isac.cnr.it"; :<em>creation_date </em>= "04-Nov-2024 15:40:53 UTC"; :<em>coverage </em>= "Monthly coverage (Dec 2016): 83.871 %"; :<em>time_resolution </em>= "5 minutes"; :<em>history </em>= "Created from raw OTT telegram, aggregated to 5min temporal resolution with a sum of the 1-minute counts if least 3 out of 5 are not NaN.";</pre> <p> </p>
CSU Atmospheric Science Parsival disdrometer data - ATS roof deployment
Open the record for dataset details and reuse information.
GPM Ground Validation Two-Dimensional Video Disdrometer (2DVD) C3VP V1
The GPM Ground Validation Two-Dimensional Video Disdrometer (2DVD) C3VP dataset consists of snowfall data collected by the Two-Dimensional Video Disdrometer (2DVD) during the Canadian CloudSat/CALIPSO Validation Project (C3VP) field campaign. The campaign took place in southern Canada in support of multiple science missions, including the NASA GPM mission, in order to improve the modeling and remote sensing of winter precipitation. The 2DVD measures precipitation characteristics such as size, shape, and velocity. During C3VP, there was one 2DVD instrument deployed at the Meteorological Service of Canada (MSC) operated Centre for Atmospheric Research Experiments (CARE) facility in Ontario, Canada. The data include diameter, volume, and fall speed information for individual snowflakes. The dataset files are available in ASCII text format from December 2, 2006 through April 9, 2007.
GPM Ground Validation Two-Dimensional Video Disdrometer (2DVD) WFF V2
The GPM Ground Validation Two-Dimensional Video Disdrometer (2DVD) WFF data were collected during the Global Precipitation Mission (GPM) Ground Validation (GV) campaign at the NASA Wallops Flight Facility (WFF) in Wallops Island, Virginia. These data consist of the size, equivalent diameter, fall speed, oblateness, cross-sectional area of raindrops, particle concentration, total number of drops, total drop concentration, liquid water content, rain rate, reflectivity, and rain event characteristics. The data are in ASCII format and available from July 24, 2013 through October 5, 2015.
GPM GROUND VALIDATION TWO-DIMENSIONAL VIDEO DISDROMETER (2DVD) IFLOODS V1
The GPM Ground Validation Two-Dimensional Video Disdrometer (2DVD) IFloodS dataset was collected during the GPM Ground Validation Iowa Flood Studies (IFLoodS) field campaign in central-northeastern Iowa in 2013. This campaign aimed to improve satellite precipitation measurements for flood prediction by using ground measurements to improve satellite retrieval algorithms. The Two-Dimensional Video Disdrometer (2DVD), developed by Joanneum Research (Graz, Austria), measures raindrop characteristics such as size distribution, shape, and velocity. The 2DVD IFloodS data was collected from 6 sites from April 3, 2013 to June 18, 2013. Officially, the IFloodS campaign ran from May 1 to June 15, 2013 but the 2DVD instruments were installed and calibrated prior to the start, allowing for the wider period of record. The dataset contains daily ASCII files that include measurements for various precipitation parameters.
GPM Ground Validation Joss-Waldvogel Disdrometer (JW) LPVEx V1
The GPM Ground Validation Joss-Waldvogel Disdrometer (JW) LPVEx dataset consists of precipitation drop size distribution (DSD) data collected by the Joss-Waldvogel (JW) disdrometer during the GPM Ground Validation Light Precipitation Validation Experiment (LPVEx). This field campaign took place around the Gulf of Finland in September and October of 2010. The goal of the campaign was to provide additional high-latitude, light rainfall measurements for the improvement of GPM satellite precipitation algorithms. The JW disdrometer dataset files are available in ASCII text format from September 10 through November 9, 2010.
GPM GROUND VALIDATION JOSS-WALDVOGEL DISDROMETER (JW) NSSTC V1
The GPM Ground Validation Joss-Waldvogel Disdrometer (JW) NSSTC dataset was collected by the Joss-Waldvogel (JW) disdrometer, which is an impact-type electromechanical counter designed to measure drop size distribution (DSD). This dataset provides rainfall data for the Global Precipitation Measurement (GPM) Mission Ground Validation Experiment collected at the National Space Science Technology Center (NSSTC), Huntsville, AL. There may be occasional gaps in the data when the instrument is not resident at the NSSTC and is sent to participate in field campaigns.
GPM GROUND VALIDATION TWO-DIMENSIONAL VIDEO DISDROMETER (2DVD) IPHEX V1
The GPM Ground Validation Two-Dimensional Video Disdrometer (2DVD) IPHEx dataset was collected during the GPM Ground Validation Integrated Precipitation and Hydrology Experiment (IPHEx) held in North Carolina. The goal of IPHEx was to evaluate the accuracy of satellite precipitation measurements and use the collected data for hydrology models in the region. Collected from five sites, the data contains daily ASCII files with information on individual hydrometeors including the number of hydrometeors, raindrop size distribution, and particle concentration. Overall data dates range from April 23, 2014 through June 17, 2014; exact dates may vary per site.
Two-Dimensional Video Disdrometer (2DVD) IMPACTS V1
The Two-Dimensional Video Disdrometer (2DVD) IMPACTS data were collected in support of the Investigation of Microphysics and Precipitation for Atlantic Coast-Threatening Snowstorms (IMPACTS) campaign. The IMPACTS field campaign addressed providing observations critical to understanding the mechanisms of snowband formation, organization, and evolution, examining how the microphysical characteristics and likely growth mechanisms of snow particles vary across snowbands, and improving snowfall remote sensing interpretation and modeling to significantly advance prediction capabilities. These data consist of the size, equivalent diameter, fall speed, oblateness, cross-sectional area of raindrops, particle concentration, total number of drops, total drop concentration, liquid water content, rain rate, reflectivity, and rain event characteristics. Data files are available from January 15, 2020 through February 28, 2020 in ASCII format.
GPM Ground Validation Two-Dimensional Video Disdrometer (2DVD) OLYMPEX V1
The GPM Ground Validation Two-Dimensional Video Disdrometer (2DVD) OLYMPEX dataset contains information on individual hydrometeors including their size distribution, terminal fall speed, and total concentration collected during the Global Precipitation Measurement mission (GPM) Ground Validation (GV) Olympic Mountains Experiment (OLYMPEX). The OLYMPEX field campaign took place between November 2015 and January 2016, with additional ground sampling continuing through February 2016, on the Olympic Peninsula in the Pacific Northwest of the United States. The purpose of the campaign was to provide ground-validation data for the measurements taken by instrumentation aboard the GPM Core Observatory satellite. The Two-Dimensional Video Disdrometer (2DVD) data were collected from four sites during the campaign. The dataset files are available from October 31, 2015 through January 17, 2016 (though the exact dates may vary per site) in ASCII-tsv format.
GPM GROUND VALIDATION TWO-DIMENSIONAL VIDEO DISDROMETER (2DVD) LPVEX V1
The GPM Ground Validation Two-Dimensional Video Disdrometer (2DVD) LPVEx dataset was collected during the Light Precipitation Evaluation Experiment (LPVEx), which took place in September and October 2010 in the Gulf of Finland. The experiment aimed to characterize the ability of CloudSat, the Global Precipitation Mission (GPM) Dual-frequency Precipitation Radar (DPR), and existing/planned passive microwave (PMW) sensors, such as the GPM microwave imager (GMI), to detect light rain and evaluate their estimates of rainfall intensity in high latitude, shallow freezing level environments.The experiment leveraged in situ microphysical property measurements, coordinated remote sensing observations, and cloud resolving model simulations of high latitude precipitation systems to conduct a comprehensive evaluation of precipitation algorithms for current and future satellite platforms. The campaign will use these measurements to better understand the process of light rainfall formation at high latitudes and augment the currently limited database of light rainfall microphysical properties that form the critical assumptions at the root of satellite retrieval algorithm.
EPFL EPFL_2009 30 disdrometer station data
Disdrometer measurements of the EPFL EPFL_2009 30 station. This dataset is part of the DISDRODB project. Station metadata are available at https://github.com/ltelab/disdrodb-data/blob/main/DISDRODB/Raw/EPFL/EPFL_2009/metadata/30.yml . The software to easily process and standardize the raw data into netCDF files is available at https://github.com/ltelab/disdrodb .
EPFL COMMON_2011 41 disdrometer station data
Disdrometer measurements of the EPFL COMMON_2011 41 station. This dataset is part of the DISDRODB project. Station metadata are available at https://github.com/ltelab/disdrodb-data/blob/main/DISDRODB/Raw/EPFL/COMMON_2011/metadata/41.yml . The software to easily process and standardize the raw data into netCDF files is available at https://github.com/ltelab/disdrodb .
EPFL COMMON_2011 20 disdrometer station data
Disdrometer measurements of the EPFL COMMON_2011 20 station. This dataset is part of the DISDRODB project. Station metadata are available at https://github.com/ltelab/disdrodb-data/blob/main/DISDRODB/Raw/EPFL/COMMON_2011/metadata/20.yml . The software to easily process and standardize the raw data into netCDF files is available at https://github.com/ltelab/disdrodb .
EPFL EPFL_2009 40 disdrometer station data
Disdrometer measurements of the EPFL EPFL_2009 40 station. This dataset is part of the DISDRODB project. Station metadata are available at https://github.com/ltelab/disdrodb-data/blob/main/DISDRODB/Raw/EPFL/EPFL_2009/metadata/40.yml . The software to easily process and standardize the raw data into netCDF files is available at https://github.com/ltelab/disdrodb .
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