| iso_dataset: |
String
- title: IDRA Raw Data
- abstract: 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.
- status: onGoing
- hierarchyLevel: dataset
- url: http://data.3tu.nl/repository/collection:cabauw
- protocol: website
- uid_dataset: 5f3bcaa2-a456-4a66-a67b-1eec928cae6d
- topic: climatologyMeteorologyAtmosphere
- keyword: Radar, Precipitation
- westbound_longitude: 4.707
- eastbound_longitude: 5.145
- southbound_latitude: 51.835
- northbound_latitude: 52.105
- temporal_extent: 2008-06-26,onGoing
- date: 2009-10-19
- dateType: publication
- statement: This file contains the raw data streams (complex I/Q signals of the beat signal) of IDRA.
- code: 28992
- codeSpace: EPSG
- accessConstraints: CESAR data policy (www.cesar-database.nl)
- useLimitation: scientific
- organisationName_dataset: Delft University of Technology (DUT)
- email_dataset: t.otto@tudelft.nl
- role_dataset: Principle Investigator
- organisationName_metadata: Delft University of Technology (DUT)
- role_metadata: Principle Investigator
- email_metadata: t.otto@tudelft.nl
- url_metadata: http://rse.ewi.tudelft.nl/
- datestamp: 2010-05-27
- metadataDateType: creation
- language: eng
- metadataStandardName: ISO-19115
- metadataStandardNameVersion: Nederlands profiel op ISO 19115 voor geografie, v1.2
- DODS:
- strlen: 1
- dimName: scalar
|
| product: |
String
- date_start_of_data: 2012-06-27T17:00:00Z
- date_end_of_data: 2012-06-27T17:01:00Z
- ref_doc: IDRA_dataset_description_document.pdf
- ref_doc_version: 1.0
- format_version: netCDF,3.6.2
- originator: Otto T., DUT
- revision_date: 2010-05-27
- DODS:
- strlen: 1
- dimName: scalar
|
| station_details: |
String
- name: CESAR observatory
- latitude: 51.97
- longitude: 4.926
- elevation: -0.7
- WMO_id: 06348
- address: Zijdeweg 1
- postal_code: 3411 MH
- city: Lopik
- administration_area: Utrecht
- country: the Netherlands
- DODS:
- strlen: 1
- dimName: scalar
|
| time_raw_data: |
Array of 64 bit Reals [time_raw_data = 0..73727]
- standard_name: time
- units: hours since 2012-06-27 00:00:00
- axis: T
|
| sample_beat_signal: |
Array of 16 bit Integers [sample_beat_signal = 0..1023]
- standard_name: sample
- units: Samples of the beat signal collected at a sampling frequency of 2.5 MHz
- axis: S
|
| time_processed_data: |
Array of 64 bit Reals [time_processed_data = 0..143]
- standard_name: time
- units: hours since 2012-06-27 00:00:00
- axis: T
|
| range: |
Array of 32 bit Integers [range = 0..511]
- long_name: range
- scan_type: non-fixed
- units: m
- comment: Slant range (meter) to the leading edge of the range bins. The radial extension of the range bins is provided by the variable .
|
| i_hh: |
Grid
- long_name: beat signal, I_hh
- units: counts
- comment: Real part of the beat signal at co-polarised horizontal polarisation in analog-to-digital converter counts.
| i_hh: |
Array of 16 bit Integers [time_raw_data = 0..73727][sample_beat_signal = 0..1023]
- long_name: beat signal, I_hh
- units: counts
- comment: Real part of the beat signal at co-polarised horizontal polarisation in analog-to-digital converter counts.
|
| time_raw_data: |
Array of 64 bit Reals [time_raw_data = 0..73727]
- standard_name: time
- units: hours since 2012-06-27 00:00:00
- axis: T
|
| sample_beat_signal: |
Array of 16 bit Integers [sample_beat_signal = 0..1023]
- standard_name: sample
- units: Samples of the beat signal collected at a sampling frequency of 2.5 MHz
- axis: S
|
|
| q_hh: |
Grid
- long_name: beat signal, Q_hh
- units: counts
- comment: Imaginary part of the beat signal at co-polarised horizontal polarisation in analog-to-digital converter counts.
| q_hh: |
Array of 16 bit Integers [time_raw_data = 0..73727][sample_beat_signal = 0..1023]
- long_name: beat signal, Q_hh
- units: counts
- comment: Imaginary part of the beat signal at co-polarised horizontal polarisation in analog-to-digital converter counts.
|
| time_raw_data: |
Array of 64 bit Reals [time_raw_data = 0..73727]
- standard_name: time
- units: hours since 2012-06-27 00:00:00
- axis: T
|
| sample_beat_signal: |
Array of 16 bit Integers [sample_beat_signal = 0..1023]
- standard_name: sample
- units: Samples of the beat signal collected at a sampling frequency of 2.5 MHz
- axis: S
|
|
| i_vv: |
Grid
- long_name: beat signal, I_vv
- units: counts
- comment: Real part of the beat signal at co-polarised vertical polarisation in analog-to-digital converter counts.
| i_vv: |
Array of 16 bit Integers [time_raw_data = 0..73727][sample_beat_signal = 0..1023]
- long_name: beat signal, I_vv
- units: counts
- comment: Real part of the beat signal at co-polarised vertical polarisation in analog-to-digital converter counts.
|
| time_raw_data: |
Array of 64 bit Reals [time_raw_data = 0..73727]
- standard_name: time
- units: hours since 2012-06-27 00:00:00
- axis: T
|
| sample_beat_signal: |
Array of 16 bit Integers [sample_beat_signal = 0..1023]
- standard_name: sample
- units: Samples of the beat signal collected at a sampling frequency of 2.5 MHz
- axis: S
|
|
| q_vv: |
Grid
- long_name: beat signal, Q_vv
- units: counts
- comment: Imaginary part of the beat signal at co-polarised vertical polarisation in analog-to-digital converter counts.
| q_vv: |
Array of 16 bit Integers [time_raw_data = 0..73727][sample_beat_signal = 0..1023]
- long_name: beat signal, Q_vv
- units: counts
- comment: Imaginary part of the beat signal at co-polarised vertical polarisation in analog-to-digital converter counts.
|
| time_raw_data: |
Array of 64 bit Reals [time_raw_data = 0..73727]
- standard_name: time
- units: hours since 2012-06-27 00:00:00
- axis: T
|
| sample_beat_signal: |
Array of 16 bit Integers [sample_beat_signal = 0..1023]
- standard_name: sample
- units: Samples of the beat signal collected at a sampling frequency of 2.5 MHz
- axis: S
|
|
| i_vh: |
Grid
- long_name: beat signal, I_vh
- units: counts
- comment: Real part of the beat signal at cross-polarisation in analog-to-digital converter counts.
| i_vh: |
Array of 16 bit Integers [time_raw_data = 0..73727][sample_beat_signal = 0..1023]
- long_name: beat signal, I_vh
- units: counts
- comment: Real part of the beat signal at cross-polarisation in analog-to-digital converter counts.
|
| time_raw_data: |
Array of 64 bit Reals [time_raw_data = 0..73727]
- standard_name: time
- units: hours since 2012-06-27 00:00:00
- axis: T
|
| sample_beat_signal: |
Array of 16 bit Integers [sample_beat_signal = 0..1023]
- standard_name: sample
- units: Samples of the beat signal collected at a sampling frequency of 2.5 MHz
- axis: S
|
|
| q_vh: |
Grid
- long_name: beat signal, Q_vh
- units: counts
- comment: Imaginary part of the beat signal at cross-polarisation in analog-to-digital converter counts.
| q_vh: |
Array of 16 bit Integers [time_raw_data = 0..73727][sample_beat_signal = 0..1023]
- long_name: beat signal, Q_vh
- units: counts
- comment: Imaginary part of the beat signal at cross-polarisation in analog-to-digital converter counts.
|
| time_raw_data: |
Array of 64 bit Reals [time_raw_data = 0..73727]
- standard_name: time
- units: hours since 2012-06-27 00:00:00
- axis: T
|
| sample_beat_signal: |
Array of 16 bit Integers [sample_beat_signal = 0..1023]
- standard_name: sample
- units: Samples of the beat signal collected at a sampling frequency of 2.5 MHz
- axis: S
|
|
| noise_power_horizontal: |
Array of 32 bit Reals [range = 0..511]
- long_name: noise power, horizontal polarised receiver channel
- units: W
- comment: Noise power (Watt) in the horizontal polarised receiver channel measured with the transmitter switched off. Measured at 2012-06-27T00:00:00Z.
|
| noise_power_vertical: |
Array of 32 bit Reals [range = 0..511]
- long_name: noise power, vertical polarised receiver channel
- units: W
- comment: Noise power (Watt) in the vertical polarised receiver channel measured with the transmitter switched off. Measured at 2012-06-27T00:00:00Z.
|
| equivalent_reflectivity_factor: |
Grid
- long_name: co-polarised equivalent reflectivity factor at horizontal polarisation
- units: dBZ
- comment: Co-polarised equivalent reflectivity factor at horizontal polarisation in logarithmic units (dBZ, normalised to 1 mm6 m-3).
- _FillValue: -999.0
| equivalent_reflectivity_factor: |
Array of 32 bit Reals [time_processed_data = 0..143][range = 0..511]
- long_name: co-polarised equivalent reflectivity factor at horizontal polarisation
- units: dBZ
- comment: Co-polarised equivalent reflectivity factor at horizontal polarisation in logarithmic units (dBZ, normalised to 1 mm6 m-3).
- _FillValue: -999.0
|
| time_processed_data: |
Array of 64 bit Reals [time_processed_data = 0..143]
- standard_name: time
- units: hours since 2012-06-27 00:00:00
- axis: T
|
| range: |
Array of 32 bit Integers [range = 0..511]
- long_name: range
- scan_type: non-fixed
- units: m
- comment: Slant range (meter) to the leading edge of the range bins. The radial extension of the range bins is provided by the variable .
|
|
| differential_reflectivity: |
Grid
- long_name: differential reflectivity
- units: dB
- comment: Logarithmic ratio of the co-polarised equivalent reflectivity factor at horizontal polarisation and the co-polarised equivalent reflectivity factor at vertical polarisation.
- _FillValue: -999.0
| differential_reflectivity: |
Array of 32 bit Reals [time_processed_data = 0..143][range = 0..511]
- long_name: differential reflectivity
- units: dB
- comment: Logarithmic ratio of the co-polarised equivalent reflectivity factor at horizontal polarisation and the co-polarised equivalent reflectivity factor at vertical polarisation.
- _FillValue: -999.0
|
| time_processed_data: |
Array of 64 bit Reals [time_processed_data = 0..143]
- standard_name: time
- units: hours since 2012-06-27 00:00:00
- axis: T
|
| range: |
Array of 32 bit Integers [range = 0..511]
- long_name: range
- scan_type: non-fixed
- units: m
- comment: Slant range (meter) to the leading edge of the range bins. The radial extension of the range bins is provided by the variable .
|
|
| linear_depolarisation_ratio: |
Grid
- long_name: linear depolarisation ratio
- units: dB
- comment: Logarithmic ratio of the cross-polarised and the co-polarised channel for transmitted horizontal polarisation.
- _FillValue: -999.0
| linear_depolarisation_ratio: |
Array of 32 bit Reals [time_processed_data = 0..143][range = 0..511]
- long_name: linear depolarisation ratio
- units: dB
- comment: Logarithmic ratio of the cross-polarised and the co-polarised channel for transmitted horizontal polarisation.
- _FillValue: -999.0
|
| time_processed_data: |
Array of 64 bit Reals [time_processed_data = 0..143]
- standard_name: time
- units: hours since 2012-06-27 00:00:00
- axis: T
|
| range: |
Array of 32 bit Integers [range = 0..511]
- long_name: range
- scan_type: non-fixed
- units: m
- comment: Slant range (meter) to the leading edge of the range bins. The radial extension of the range bins is provided by the variable .
|
|
| radial_velocity: |
Grid
- long_name: radial Doppler velocitiy for transmitted horizontal polarisation
- units: ms-1
- comment: Radial Doppler velocity estimated from the Doppler phase shift on a sweep to sweep basis.
- _FillValue: -999.0
| radial_velocity: |
Array of 32 bit Reals [time_processed_data = 0..143][range = 0..511]
- long_name: radial Doppler velocitiy for transmitted horizontal polarisation
- units: ms-1
- comment: Radial Doppler velocity estimated from the Doppler phase shift on a sweep to sweep basis.
- _FillValue: -999.0
|
| time_processed_data: |
Array of 64 bit Reals [time_processed_data = 0..143]
- standard_name: time
- units: hours since 2012-06-27 00:00:00
- axis: T
|
| range: |
Array of 32 bit Integers [range = 0..511]
- long_name: range
- scan_type: non-fixed
- units: m
- comment: Slant range (meter) to the leading edge of the range bins. The radial extension of the range bins is provided by the variable .
|
|
| spectrum_width: |
Grid
- long_name: spectrum width
- units: ms-1
- comment: Spectrum width for horizontal polarisation transmitted.
- _FillValue: -999.0
| spectrum_width: |
Array of 32 bit Reals [time_processed_data = 0..143][range = 0..511]
- long_name: spectrum width
- units: ms-1
- comment: Spectrum width for horizontal polarisation transmitted.
- _FillValue: -999.0
|
| time_processed_data: |
Array of 64 bit Reals [time_processed_data = 0..143]
- standard_name: time
- units: hours since 2012-06-27 00:00:00
- axis: T
|
| range: |
Array of 32 bit Integers [range = 0..511]
- long_name: range
- scan_type: non-fixed
- units: m
- comment: Slant range (meter) to the leading edge of the range bins. The radial extension of the range bins is provided by the variable .
|
|
| differential_phase: |
Grid
- long_name: Differential phase between the co-polarised echoes at horizontal and vertical polarisation.
- units: rad
- comment: Spectral estimation of the differential phase between the co-polarised echoes at horizontal and vertical polarisation.
- _FillValue: -999.0
| differential_phase: |
Array of 32 bit Reals [time_processed_data = 0..143][range = 0..511]
- long_name: Differential phase between the co-polarised echoes at horizontal and vertical polarisation.
- units: rad
- comment: Spectral estimation of the differential phase between the co-polarised echoes at horizontal and vertical polarisation.
- _FillValue: -999.0
|
| time_processed_data: |
Array of 64 bit Reals [time_processed_data = 0..143]
- standard_name: time
- units: hours since 2012-06-27 00:00:00
- axis: T
|
| range: |
Array of 32 bit Integers [range = 0..511]
- long_name: range
- scan_type: non-fixed
- units: m
- comment: Slant range (meter) to the leading edge of the range bins. The radial extension of the range bins is provided by the variable .
|
|
| azimuth_raw_data: |
Array of 32 bit Reals [time_raw_data = 0..73727]
- long_name: azimuth, raw data
- units: rad
- comment: The azimuth for the raw data (radian) is measured clockwise from the Geographic North Pole.
|
| azimuth_processed_data: |
Array of 32 bit Reals [time_processed_data = 0..143]
- long_name: azimuth, processed data
- units: rad
- comment: The azimuth for the processed data (radian) is measured clockwise from the Geographic North Pole.
|
| range_resolution: |
Array of 32 bit Integers [scalar = 0..0]
- long_name: range resolution
- units: m
- comment: Radial extension (meter) of one range bin.
|
| radiation_wavelength: |
Array of 32 bit Reals [scalar = 0..0]
- long_name: central radiation wavelength
- units: m
- comment: Central radiation wavelength (meter).
|
| frequency_excursion: |
Array of 32 bit Integers [scalar = 0..0]
- long_name: frequency excursion
- units: s-1
- comment: Frequency excursion of the transmitted linear up-chirp.
|
| sweep_time: |
Array of 32 bit Reals [scalar = 0..0]
- long_name: sweep time
- units: us
- comment: Sweep time (microseconds) of the transmitted linear up-chirp.
|
| tx_power: |
Array of 32 bit Integers [scalar = 0..0]
- long_name: transmitted power
- units: W
|
| sample_size: |
Array of 32 bit Integers [scalar = 0..0]
- long_name: sample size
- comment: Number of sweeps that are averaged for the calculation of one profile of the processed data and of the noise measurements.
|
| beam_width: |
Array of 32 bit Reals [scalar = 0..0]
- long_name: antenna beam-width
- units: rad
- comment: Half-power beam-width of the transmit and receive antennas (radian). The beam-width determines the resolution in azimuth and elevation.
|
| elevation_angle: |
Array of 32 bit Reals [scalar = 0..0]
- long_name: elevation
- units: rad
- comment: The elevation (radian) is measured from the horizon (0 rad) upwards.
|