IDRA Raw Data
Delft University of Technology (DUT)
Raw IDRA data, complex I/Q signals
J. Figueras i Ventura, Design of a High Resolution X-band Doppler Polarimetric Radar, PhD Thesis, TU Delft, 2009. @ http://repository.tudelft.nl/view/ir/uuid%3Ad90b9ad6-237b-435d-9dc5-5660d9e7fbdd/
CF-1.4
CESAR observatory, the Netherlands
Ground-based polarimetric weather radar.
http://ftp.tudelft.nl/TUDelft/irctr-rse/idra/
IDRA Raw Data
This file contains the raw data streams of the FW-CW X-band (central frequency 9.475 GHz) polarimetric weather radar IDRA located on the top of the 213m agl. meteorological observation tower at Cabauw, The Netherlands. The datastreams comprises the complex I/Q signals of the beat signal for the two co-polarised (linear horizontal and linear vertical polarisation) and one cross-polarised receiver channel. The file contains as well the corresponding processed weather radar observables.
onGoing
dataset
http://data.3tu.nl/repository/collection:cabauw
website
5f3bcaa2-a456-4a66-a67b-1eec928cae6d
climatologyMeteorologyAtmosphere
Radar, Precipitation
4.707
5.145
51.835
52.105
2008-06-26,onGoing
2009-10-19
publication
This file contains the raw data streams (complex I/Q signals of the beat signal) of IDRA.
28992
EPSG
CESAR data policy (www.cesar-database.nl)
scientific
Delft University of Technology (DUT)
t.otto@tudelft.nl
Principle Investigator
Delft University of Technology (DUT)
Principle Investigator
t.otto@tudelft.nl
http://rse.ewi.tudelft.nl/
2010-05-27
creation
eng
ISO-19115
Nederlands profiel op ISO 19115 voor geografie, v1.2
1
scalar
2018-09-17T13:00:00Z
2018-09-17T13:00:59Z
IDRA_dataset_description_document.pdf
1.0
netCDF,3.6.2
Otto T., DUT
2010-05-27
1
scalar
CESAR observatory
51.97
4.926
-0.7
06348
Zijdeweg 1
3411 MH
Lopik
Utrecht
the Netherlands
1
scalar
time
hours since 2018-09-17 00:00:00
T
sample
Samples of the beat signal collected at a sampling frequency of 2.5 MHz
S
time
hours since 2018-09-17 00:00:00
T
range
non-fixed
m
Slant range (meter) to the leading edge of the range bins. The radial extension of the range bins is provided by the variable <range_resolution>.
beat signal, I_hh
counts
Real part of the beat signal at co-polarised horizontal polarisation in analog-to-digital converter counts.
beat signal, Q_hh
counts
Imaginary part of the beat signal at co-polarised horizontal polarisation in analog-to-digital converter counts.
beat signal, I_vv
counts
Real part of the beat signal at co-polarised vertical polarisation in analog-to-digital converter counts.
beat signal, Q_vv
counts
Imaginary part of the beat signal at co-polarised vertical polarisation in analog-to-digital converter counts.
beat signal, I_vh
counts
Real part of the beat signal at cross-polarisation in analog-to-digital converter counts.
beat signal, Q_vh
counts
Imaginary part of the beat signal at cross-polarisation in analog-to-digital converter counts.
noise power, horizontal polarised receiver channel
W
Noise power (Watt) in the horizontal polarised receiver channel measured with the transmitter switched off. Measured at 2018-09-17T12:11:04Z.
noise power, vertical polarised receiver channel
W
Noise power (Watt) in the vertical polarised receiver channel measured with the transmitter switched off. Measured at 2018-09-17T12:11:04Z.
co-polarised equivalent reflectivity factor at horizontal polarisation
dBZ
Co-polarised equivalent reflectivity factor at horizontal polarisation in logarithmic units (dBZ, normalised to 1 mm6 m-3).
-999.0
differential reflectivity
dB
Logarithmic ratio of the co-polarised equivalent reflectivity factor at horizontal polarisation and the co-polarised equivalent reflectivity factor at vertical polarisation.
-999.0
linear depolarisation ratio
dB
Logarithmic ratio of the cross-polarised and the co-polarised channel for transmitted horizontal polarisation.
-999.0
radial Doppler velocitiy for transmitted horizontal polarisation
ms-1
Radial Doppler velocity estimated from the Doppler phase shift on a sweep to sweep basis.
-999.0
spectrum width
ms-1
Spectrum width for horizontal polarisation transmitted.
-999.0
Differential phase between the co-polarised echoes at horizontal and vertical polarisation.
rad
Spectral estimation of the differential phase between the co-polarised echoes at horizontal and vertical polarisation.
-999.0
azimuth, raw data
rad
The azimuth for the raw data (radian) is measured clockwise from the Geographic North Pole.
azimuth, processed data
rad
The azimuth for the processed data (radian) is measured clockwise from the Geographic North Pole.
range resolution
m
Radial extension (meter) of one range bin.
central radiation wavelength
m
Central radiation wavelength (meter).
frequency excursion
s-1
Frequency excursion of the transmitted linear up-chirp.
sweep time
us
Sweep time (microseconds) of the transmitted linear up-chirp.
transmitted power
W
sample size
Number of sweeps that are averaged for the calculation of one profile of the processed data and of the noise measurements.
antenna beam-width
rad
Half-power beam-width of the transmit and receive antennas (radian). The beam-width determines the resolution in azimuth and elevation.
elevation
rad
The elevation (radian) is measured from the horizon (0 rad) upwards.