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To get a year dataset please use one of the links below to download the wget script:
2011, 2012, 2013, 2014,

Description

Microwave Radiometer Type: HATPRO (Humidity and Temperature PROfiler) Generation 2, manufactored by Radiometer Physics GmbH, Meckenheim, Germany Microwave Radiometer Name: TOPHAT TOPHAT has seven K band (22.235-31.4 GHz) channels as well as seven V band channels (51.2-58.0 GHz). The brightness temeparature measurements in these band are sensitive for the humidity profile, the vertically integrated amount of cloud liquid water and the temperature profile, respectively The files contain 14 brightness temperatures as a function of measurement time, elevation and azimuth angle observing direction. Additionally included are temperature, pressure and humidity at the instrument location as well quality flags characterizing the instrument performance. Note, that brightness temperature values are given for all available times so that it is up to the user to decide whether or not to use the values if quality flags are set. Provided uncertainties describe the expected random error of the brightness temperature channels (variance) for each measurement in addition to the covariances among the different channels. Also included is the expected systematic uncertainty for brightness temperature when carying out a absolute calibration (Maschwitz et al., 2012 in Atmospheric Measurement Techniques). For detailed documentation of the instrument see: http://www.radiometer-physics.de/ or Rose et al. (2005) in Atmospheric Research TOPHAT was installed at JOYCE on 22.7.2010 as has been measuring in a 24/7 mode since then. For details on TOPHAT at the JOYCE supersite please refer to http://gop.meteo.uni-koeln.de/ag_crewell/doku.php?id=instruments:tophat:tophat

Limitations: none
Provenance: MWR is part of JOYCE, data processed by IMGK, University of Cologne
Comments: none

• Source: RPG Microwave Radiometer HATPRO, Generation 2
• Descriptive Instrument location: The instrument is located at the JOYCE supersite, on top of the roof of IEK-8 (building 5.2) of the Forschungszentrum Juelich

• PID: de.koeln.rrzk/amd.de.sups/joy.mwr00.l1.tb
• Project: HD(CP)2
• Level: 1
• Updated version: 01
• File format: NETCDF3_CLASSIC
• Convention: based on CF-1.6
• Average File Size Uncompressed: 8 Mb
• File name: sups_joy_mwr00_l1_tb_v[VV]_[YYYYMMDDhhmmss].nc
• Start: 2011-01-01
• End: 2014-12-31

Name	Dimension	CF standard_name	long_name	Unit
hur	n_time,	relative_humidity	relative humidity	1
pa	n_time,	air_pressure	air pressure	Pa
ta	n_time,	air_temperature	air temperature	K
tb	n_time, n_freq	brightness_temperature	brightness temperatures	K
tb_bias	n_freq,		systematic calibration uncertainty of brightness temperature, one standard deviation	K
tb_cov	n_freq, n_freq		error covariance matrix of brightness temperature channels	K*K
tb_irp	n_time, n_wl_irp		infrared pyrometer brightness temperature	K
wl_irp	n_wl_irp,		infrared pyrometer central wavelength	micrometer
zsl		altitude	altitude above mean sea level	m

Research Center Juelich Institute for Energy and Climate Research IEK8

Ulrich Loehnert (loehnert@meteo.uni-koeln.de)

T. Rose, S. Crewell, U. Loehnert, and C. Simmer,A network suitable microwave radiometer for operational monitoring of the cloudy atmosphere

For non-commercial use only. This data is subject to the HD(CP)2/SAMD data policy to be found at https://doi.org/10.25592/uhhfdm.9823  and in the HD(CP)2/SAMD Observation Data Product Standard https://doi.org/10.5281/zenodo.1741363 .