cops_sups_wtr: wind and temperature data from WTR run by FZK-IMK during COPS 2007

Vogt, Siegfried

Dataset Group
Summary
Wind and temperature data from wind temp. radar WTR run by FZK-IMK Karlsruhe at COPS-Supersite Stuttgart.
Daily measurements of wind temperature radar (WTR) from 20070607 to 20070825 with some gaps. See more information on measurement times in entry "cops_sups_wtrad_info_1". Spatial granulartity varies from 100m to 60m, mostly 75m. Quality flags of wind and temperature range from 0 to 1 (0=worst 1=best). Instrument was located at Deckenpfronn, COPS-SuperSite Stuttgart, Germany. Eastward_wind, northward_wind, upward_air_velocity, quality of wind, radar_reflectivity, virtual_temperature, quality of air temperature are archived.
The WTR operates in two modes: the RASS-mode and the clear-air-mode. In the RASS-mode the WTR records the air temperature by detecting the propagation of sound pulses.
In the clear-air-mode the WTR observes the electro-magnetic refractive index, which in contrast to its acoustic counter part is mainly dominated by moisture fluctuations but much less by temperature fluctuations.
The WTR has a five-beam geometry with two bistatic radiofrequency (rf) and one acoustic (ac) antenna. The rf antenna emits continuous waves that are frequency shifted with a saw tooth modulation (FM-CW Doppler Radar) in order to provide high average transmitted power as well as a fine range gate resolution. The height resolution is proportional to the frequency shift between the transmitted and received signal.
From the Doppler effect induced difference between the frequency of the emitted and received radiation radial velocities are derived. Physical meaning of the velocity measured depends on the effective scattering mechanism:
a)Scattering on microturbulent refraction index fluctuations. The 3D-velocity derived from radial velocities is to be equaled to the mean wind velocity in the scattering volume.
b)Scattering on hydrometeors. In case of vertical beam direction, dropping of hydrometeors is measured.
c)Scattering on artificially generated acoustic waves (RASS).
Project
COPS (Convective and Orographically-induced Precipitation Study)
Location(s)
COPS measurement region
COPS region (CDOM)
Additional Information
cops_sups_wtr_info_1: pdf-file with details on the Wind Temperarure Radar (WTR)
uni_hohenheim_data_policy.txt
Spatial Coverage
Longitude -10 to 10 Latitude 36 to 50 Altitude: 0 undefined_source_alt
Temporal Coverage
2007-06-01 to 2007-08-31 (calendrical)
Use constraints
For scientific use only. No commercial use allowed. Please be aware of the common COPS/GOP/D-PHASE data policy (http://cops.wdc-climate.de/)
Data Catalog
World Data Center for Climate
Size
2.87 MiB (3004328 Byte)
Format
netCDF.gz
Status
metadata only
Creation Date
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Cite as
Vogt, Siegfried (2009). cops_sups_wtr: wind and temperature data from WTR run by FZK-IMK during COPS 2007. World Data Center for Climate (WDCC) at DKRZ. http://cera-www.dkrz.de/WDCC/ui/Compact.jsp?acronym=cops_sups_wtr

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Contact typePersonORCIDOrganization
Author
Siegfried Vogt
-
Forschungszentrum Karlsruhe
Originator
Siegfried Vogt
-
Forschungszentrum Karlsruhe

Is documented by

[1] DOI Wulfmeyer, V.; Flamant, C.; Behrendt, A.; Blyth, A.; Brown, A.; Dorninger, M.; Illingworth, A.; Mascart, P.; Montani, A.; Weckwerth, T. (2011). Advances in the understanding of convective processes and precipitation over low-mountain regions through the Convective and Orographically-induced Precipitation Study (COPS). doi:10.1002/qj.799
[2] DOI Wulfmeyer, V.; Flamant, C.; Behrendt, A.; Blyth, A.; Brown, A.; Dorninger, M.; Illingworth, A.; Mascart, P.; Montani, A.; Weckwerth, T (Eds.). (2011). Special Issue: Advances in the understanding of convective processes and precipitation over low-mountain regions through the Convective and Orographically-induced Precipitation Study (COPS). doi:10.1002/qj.v137.1s

Parent

cops_sups: contains data at Supersite Stuttgart during COPS Campaign
Details

Attached Datasets ( 1 )

Details for selected entry

Parent project(s)

Convective and Orographically-induced Precipitation Study

[Entry acronym: cops_sups_wtr] [Entry id: 2230085]