[760] - PARSIVEL Snow Observations: A Critical Assessment
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VERY IMPORTANT!
Due to the speed of the filesystem and depending on the size of the archive and the file to be extracted, it may take up to thirty (!) minutes until a download is ready! Beware of that when confirming since you may not close the tab because otherwise, you will not get your file!
| Features | ||
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| Citation | ||
| Battaglia, A., Rustemeier, E., Tokay, A., Blahak, U., Simmer, C., 2010. PARSIVEL Snow Observations: A Critical Assessment. Journal of Atmosperic and Oceanographic Technology, 27 (2), 333 - 344. DOI: 10.1175/2009JTECHA1332.1. | ||
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| Identification | ||
| Title(s): | Main Title: PARSIVEL Snow Observations: A Critical Assessment | |
| Description(s): | Abstract: The performance of the laser-optical Particle Size Velocity (PARSIVEL) disdrometer is evaluated to determine the characteristics of falling snow. PARSIVEL’s measuring principle is reexamined to detect its limitations and pitfalls when applied to solid precipitation. This study uses snow observations taken during the Canadian Cloudsat/Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) Validation Project (C3VP) campaign, when two PARSIVEL instruments were collocated with a single twodimensional disdrometer (2-DVD), which allows more detailed observation of snowflakes. When characterizing the snowflake size, PARSIVEL instruments inherently retrieve only one size parameter, which is approximately equal to the widest horizontal dimension (more accurately with large snowflakes) and that has no microphysical meaning. Unlike for raindrops, the equivolume PARSIVEL diameter—the PARSIVEL output variable—has no physical counterpart for snowflakes. PARSIVEL’s fall velocity measurement may not be accurate for a single snowflake particle. This is due to the internally assumed relationship between horizontal and vertical snow particle dimensions. The uncertainty originates from the shape-related factor, which tends to depart more and more from unity with increasing snowflake sizes and can produce large errors. When averaging over a large number of snowflakes, the correction factor is size dependent with a systematic tendency to an underestimation of the fall speed (but never exceeding 20%). Compared to a collocated 2-DVD for long-lasting events, PARSIVEL seems to overestimate the number of small snowflakes and large particles. The disagreement between PARSIVEL and 2-DVD snow measurements can only be partly ascribed to PARSIVEL intrinsic limitations (border effects and sizing problems), but it has to deal with the difficulties and drawbacks of both instruments in fully characterizing snow properties. | |
| Identifier(s): | DOI: 10.1175/2009JTECHA1332.1 | |
| Responsible Party | ||
| Creator(s): | Author: Alessandro Battaglia Author: Elke Rustemeier Author: Ali Tokay Author: Ulrich Blahak Author: Clemens Simmer | |
| Publisher: | American Meteorological Society | |
| Topic | ||
| TR32 Topic: | Other | |
| Subject(s): | CRC/TR32 Keywords: Sensor, Disdrometer, Meteorology | |
| File Details | ||
| File Name: | 2010_Battaglia_JoAOT.pdf | |
| Data Type: | Text | |
| Size(s): | 12 Pages | |
| File Size: | 1935 kB (1.89 MB) | |
| Date(s): | Date Submitted: 2009-09-10 | |
| Mime Type: | application/pdf | |
| Data Format: | ||
| Language: | English | |
| Status: | Completed | |
| Constraints | ||
| Download Permission: | OnlyTR32 | |
| General Access and Use Conditions: | For internal use only | |
| Access Limitations: | For internal use only | |
| Licence: | TR32DB Data policy agreement | |
| Geographic | ||
| North: | - |  |
| East: | - | |
| South: | - | |
| West: | - | |
| Measurement Region: | Other | |
| Measurement Location: | --Other-- | |
| Specific Informations - Publication | ||
| Status: | Published | |
| Review: | PeerReview | |
| Year: | 2010 | |
| Type: | Article | |
| Article Type: | Journal | |
| Source: | Journal of Atmosperic and Oceanographic Technology | |
| Issue: | 2 | |
| Volume: | 27 | |
| Number Of Pages: | 12 | |
| Page Range: | 333 - 344 | |
| Metadata Details | ||
| Metadata Creator: | Alessandro Battaglia | |
| Metadata Created: | 2013-12-03 | |
| Metadata Last Updated: | 2013-12-03 | |
| Subproject: | D5 | |
| Funding Phase: | 1 | |
| Metadata Language: | English | |
| Metadata Version: | V40 | |
| Dataset Metrics | ||
| Page Visits: | 899 | |
| Metadata Downloads: | 0 | |
| Dataset Downloads: | 0 | |
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