Radiosonde profile measurements (UZK) during FESSTVaL 2021
DOI:10.25592/uhhfdm.10279
Access
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2021,
Dataset Author
Kirsch, Bastian (1); Stiehle, Bernhard (1); Löhnert, Ulrich (2); Ament, Felix (1), Institution: (1) University of Hamburg; (2) University of CologneDescription
This data set contains atmospheric profile measurements retrieved from 452 radiosonde ascents during FESSTVaL 2021. The data set consits of observations from three data sources: (1) operational 6-hourly radiosonde launches from the Meteorological Observatory Lindenberg - Richard Assmann Observatory (MOL-RAO) performed by the German Weather Service (sups_rao; 421 sondes); (2) special radiosonde launches from the MOL-RAO performed by the University of Hamburg (fval_uhh; 19 sondes); and (3) special radiosonde launches from the Falkenberg boundary layer measurement site (located about 5 km south of MOL-RAO) performed by the University of Cologne (fval_uzk; 12 sondes). All profiles are stored in seperate files according to the SAMD convention for FESSTVaL. A data file contains the 3-dimensional position information and basic meteorological parameters measured by the radiosonde dependent on time (at 1-s resolution) and typically covers both ascent and descent of the radiosonde flight. The vertical resolution of the measurement data depends on the ascent/descent velocity of the sonde. Date and time in the file names refer to the actual launch time (in UTC) of the respective radiosonde.
Limitations: The measurements are performed by standard radiosonde types. Apart from basic physical consistency checks, the data set contains the measurements as recorded by the instruments. For technical specifications please refer to the manufacturer's information (Vaisala RS41-SGP: https://www.vaisala.com/sites/default/files/documents/RS41-SGP-Datasheet-B211444EN.pdf; GRAW DMF-09: https://www.graw.de/fileadmin/cms_upload/de/Resources/GRS-KD-0038-DE_V01.13_DFM-09_Datenblatt.pdf). The data processing for (2) includes a correction of erroneous measurement time in the original source files, where the time stamp is updated only every 10 s. Therefore, the 1-s time stamps for (2) are determined with an accuracy of +/-5 s or better. Additionally, these profiles occasionally contain isolated time steps produced by the instruments that should be treated with caution.
Provenance: none
Comments:
Instrument 1
- Source: GRAW DMF-09
- Descriptive Instrument location: 52.2094°N, 14.1203°E, 112 m, MOL-RAO, Germany
- Instruments altitude: 112 [m]
- Coordinates (Latitude, Longitude): 52.1673 - 52.43314 °N 14.1221 - 14.17442 °E
- Height: 74 - 18000 [m]
- Horizontal resolution: none [m]
- Vertical resolution: 10 [m]
- Time resolution: 1 [s]
Global information
- PID: de.hamburg.icdc/amd.de.fval/uzk.sonde00.l1.any
- Standard: SAMD v2.2, https://doi.org/10.25592/uhhfdm.9902
- Project: FESSTVAL
- Level: 1
- Updated version: 00
- File format: NETCDF4
- Convention: CF-1.7 where applicable
- Average File Size Uncompressed: 300 Mb
- File name: fval_uzk_sonde00_l1_any_v[VV]_[YYYYMMDDhhmmss].nc
- Start: 2021-06-08
- End: 2021-07-01
Variables
| Name | Dimension | CF standard_name | long_name | Unit |
|---|---|---|---|---|
| hur | ('time',) | relative_humidity | relative humidity of air | 1 |
| pa | ('time',) | air_pressure | air pressure | Pa |
| ta | ('time',) | air_temperature | air temperature | K |
| wdir | ('time',) | wind_from_direction | wind direction | degree |
| wspeed | ('time',) | wind_speed | wind speed | m s-1 |
| zsl | ('time',) | altitude | altitude above mean sea level | m |
| zsl_start | altitude above mean sea level of start location | m |
Institution
Contact Person(s)
Felix Ament (felix.ament@uni-hamburg.de), Meteorological Institute, University of Hamburg
References
Kirsch, Bastian, Stiehle, Bernhard, Loehnert, Ulrich, Ament, Feli: Radiosonde profile measurements during FESSTVaL 2021 (Version 00), (2022), http://doi.org/10.25592/uhhfdm.10279