OPeNDAP Dataset Query Form

OPeNDAP Dataset Access Form

Action:
Data URL:

Global Attributes:	Title: Microwave radiometer brightness temperatures boundary layer scans Institution: Leibniz Institute for Tropospheric Research (TROPOS), Leipzig, Germany Contact_person: Patric Seifert (seifert@tropos.de) Source: RPG HATPRO G2 microwave radiometer History: Data processed with mwrpro-v04 by TROPOS; Conventions: CF-1.6 Processing_date: Fri Aug 4 16:01:29 2017 Author: Ulrich Loehnert (loehnert@meteo.uni-koeln.de) Comments: Home site of LACROS at TROPOS in Leipzig, Germany. LACROS is deployed here when not on campaign. Licence: For non-commercial use only. This data is subject to the SAMD data policy to be found at www.icdc.cen.uni-hamburg.de/projekte/samd.html and in the SAMD Observation Data Product standard. Measurement_site: Leipzig, GER Dependencies: external n_freq2: 14 n_band: 2

Variables:	time: Array of 64 bit Reals [time = 0..47] time: units: seconds since 1970-01-01 00:00:00 UTC standard_name: time bounds: time_bnds
	time_bnds: Array of 64 bit Reals [time = 0..47][nv = 0..1] time: nv:
	lat: 32 bit Real lat units: degrees_north long_name: latitude
	lon: 32 bit Real lon units: degrees_east long_name: longitude
	zsl: 32 bit Real zsl units: m standard_name: altitude long_name: altitude above mean sea level
	freq_sb: Array of 32 bit Reals [n_freq = 0..13] n_freq: units: GHz standard_name: sensor_band_central_radiation_frequency long_name: frequency of microwave channels
	azi: Array of 32 bit Reals [n_angle = 0..5] n_angle: units: degree standard_name: sensor_azimuth_angle long_name: sensor azimuth angle _FillValue: -999.0 comment: 0=North, 90=East, 180=South, 270=West
	ele: Array of 32 bit Reals [n_angle = 0..5] n_angle: units: degree long_name: sensor elevation angle _FillValue: -999.0
	tb: Array of 32 bit Reals [time = 0..47][n_angle = 0..5][n_freq = 0..13] time: n_angle: n_freq: units: K standard_name: brightness_temperature long_name: brightness temperatures _FillValue: -999.0 valid_min: 2.7 valid_max: 330.0
	offset_tb: Array of 32 bit Reals [time = 0..47][n_angle = 0..5][n_freq = 0..13] time: n_angle: n_freq: units: K long_name: brightness temperatures offset correction subtracted _FillValue: -999.0 comment: Some types of MWR require a systemmatic adjustement of the measured TBs. This variable gives the offset which was subtracted from each measurement. The offset was deteremined from COSMO-DE analysis.
	freq_shift: Array of 32 bit Reals [n_freq = 0..13] n_freq: units: 1 long_name: frequency shift applied to correct measured brightness temperature for frequency offset of microwave radiometer channel _FillValue: -999.0
	tb_bias: Array of 32 bit Reals [n_freq = 0..13] n_freq: units: K long_name: systematic calibration uncertainty of brightness temperature, one standard deviation _FillValue: -999.0 comment: This variable is an estimate of the one-standard-deviation calibration error to be expected from an absolute system calibration, i.e. the likely systematic error of brightness temperature. As a reference see Maschwitz et al. 2012, AMT (Tab. 5). However, these numbers differ from instrument to instrument and should be adapted accordingly. Values only valid for elevation angles larger than 20deg.
	tb_cov: Array of 32 bit Reals [n_freq = 0..13][n_freq = 0..13] n_freq: n_freq: units: K*K long_name: error covariance matrix of brightness temperature channels _FillValue: -999.0 comment: This variable is calculated from brightness temperature observations of an internal black body whose physical temperature is known. The square root of the matrix diagonal gives the brightness temperature random error of each frequency channel. Values only valid for elevation angles larger than 20deg.
	ta: Array of 32 bit Reals [time = 0..47] time: units: K standard_name: air_temperature long_name: air temperature _FillValue: -999.0 comments: ambient air temperature measured by sensor on microwave radiometer valid_min: 200.0 valid_max: 330.0
	pa: Array of 32 bit Reals [time = 0..47] time: units: Pa standard_name: air_pressure long_name: air pressure _FillValue: -999.0 comments: ambient air pressure measured by sensor on microwave radiometer valid_min: 90000.0 valid_max: 104000.0
	hur: Array of 32 bit Reals [time = 0..47] time: units: 1 standard_name: relative_humidity long_name: relative humidity _FillValue: -999.0 comments: ambient relative humidity measured by sensor on microwave radiometer valid_min: 0.0 valid_max: 1.1
	flag: Array of 16 bit Integers [time = 0..47] time: long_name: quality control flags _FillValue: 0 flag_masks: 1, 2, 4, 8, 16, 32, 64, 128, 256, 512 flag_meanings: manual_filter_band_1 manual_filter_band2 manual_filter_band3 rain_flag sanity_receiver_band1 sanity_receiver_band2 sun_in_beam tb_threshold_band1 tb_threshold_band2 tb_threshold_band3 comment: Flags indicate data that the user should only use with care. In cases of doubt, please refer to the contact person. A Fillvalue of 0 means that data has not been flagged. Bands refer to the measurement ranges (if applicable) of the microwave radiometer; i.e band 1: 20-30 GHz, band 2: 50-60 GHz, band 3: 90 GHz; tb valid range: [ 2.70, 330.00] in K;

For questions or comments about this dataset, contact the administrator of this server [Support] at: icdc.cen@lists.uni-hamburg.de

For questions or comments about the OPeNDAP service bundled with the TDS, email THREDDS support at: support-thredds@unidata.ucar.edu

DDS:

Dataset {
    Float64 time[time = 48];
    Float64 time_bnds[time = 48][nv = 2];
    Float32 lat;
    Float32 lon;
    Float32 zsl;
    Float32 freq_sb[n_freq = 14];
    Float32 azi[n_angle = 6];
    Float32 ele[n_angle = 6];
    Float32 tb[time = 48][n_angle = 6][n_freq = 14];
    Float32 offset_tb[time = 48][n_angle = 6][n_freq = 14];
    Float32 freq_shift[n_freq = 14];
    Float32 tb_bias[n_freq = 14];
    Float32 tb_cov[n_freq = 14][n_freq = 14];
    Float32 ta[time = 48];
    Float32 pa[time = 48];
    Float32 hur[time = 48];
    Int16 flag[time = 48];
} ftpthredds/samd/data/mwrBL/00/tb/l1/sups/lac/2013/sups_lac_mwrBL00_l1_tb_v00_20130626001754.nc;

OPeNDAP Dataset Access Form

Action:

Data URL:

Global Attributes:

Variables:

DDS: