DOI: 10.5281/zenodo.7907541
title: Vertically pointing doppler radar profiles (24 GHz Metek MRR-2) at Mario Zucchelli Station, aggregated to 5min, monthly netCDF archive

description: Vertical profiles along the first kilometre of atmosphere above the ground (from 105 to 1050 m AGL) of equivalent radar reflectivity factor (Ze), Doppler velocity (W) and Doppler spectral width (Sw) from a 24-GHz vertically pointing Micro Rain Radar MRR-2 by METEK GmbH positioned at Mario Zucchelli Station (Antarctica).

Metadata available at https://antarcticdatacenter.cnr.it/geonetwork/srv/api/records/6fe32f1f-247e-493d-9cd3-88714e5b38ef

 

Example of netCDF file structure:

 

Source:

output/MRR/mrr_202211.nc

 

Format:

netcdf4_classic

 

Global Attributes:

title = 'Micro rain radar data processed with IMProToo (Maahn, M. and Kollias, P., 2012), aggregated to 5min, monthly netCDF archive.'

comment = 'IMProToo has been developed for improved snow measurements. Note that this data has been processed regardless of precipitation type.'

time_label = 'Nov 2022'

institution = 'CNR-ISAC, Rome (IT)'

contact_person = 'Baldini Luca, CNR-ISAC, Rome, l.baldini@isac.cnr.it'

source = 'Micro Rain Radar 2 (MRR-2), METEK GmbH, at MZS (Antarctica), frequency: 24 GHz, power: 50 mW, antenna diameter: 60 cm [https://metek.de/product/mrr-2/]'

location = 'Mario Zucchelli Station (74°42'S, 164°07'E, 15 m a.s.l.)'

author = 'Roversi Giacomo'

creation_date = '05-May-2023 10:30:21 UTC'

coverage = 'Monthly coverage (Nov 2022): 26.6667 %'

time_resolution = '5 minutes'

history = 'Created with IMProToo v0.107 [https://github.com/maahn/IMProToo], aggregated to 5 minutes temporal resolution with an average of the 1-minute values if least 3 out of 5 are not NaN.'

 

Dimensions:

time = 2228 (UNLIMITED)

range = 31

 

Variables:

 

time_UTC 

Size: 2228x1

Dimensions: time

Datatype: int32

Attributes:

description = 'Measurement time. Timestamp indicates the end of the aggregation interval, e.g. 01-Mar-2020 00:05:00 represents the average of the variables between 01-Mar-2020 00:00:01 and 01-Mar-2020 00:05:00.'

time_zone = 'UTC'

units = 'Seconds since 1970-01-01 00:00:00 (Unix time).'

 

height 

Size: 31x2228

Dimensions: range,time

Datatype: single

Attributes:

description = 'Height above instrument.'

units = 'm'

 

Ze 

Size: 31x2228

Dimensions: range,time

Datatype: single

Attributes:

description = 'Equivalent reflectivity factor relative to the most significant peak, dealiased, 5min non-logarithmic average. NaN means clear sky at the specified height.'

units = 'dBZ'

 

W 

Size: 31x2228

Dimensions: range,time

Datatype: single

Attributes:

description = 'Mean Doppler Velocity of the most significant peak, dealiased, 5min average. Value not available in clear-sky conditions.'

units = 'm s^-1'

 

spectralWidth

Size: 31x2228

Dimensions: range,time

Datatype: single

Attributes:

description = 'Doppler Spectral Width of the most significant peak, dealiased, 5min average. Value not available in clear-sky conditions.'

units = 'm s^-1'

 
description: Months with data (% of coverage): Nov 2018 (50%), Dec 2018 (81%), Jan 2019 (100%), Feb 2019 (100%), Mar 2019 (61%), Oct 2019 (13%), Nov 2019 (100%), Dec 2019 (100%), Jan 2020 (100%), Feb 2020 (100%), Mar 2020 (100%), Apr 2020 (100%), May 2020 (100%), Jun 2020 (100%), Jul 2020 (100%), Aug 2020 (100%), Sep 2020 (20%), Nov 2020 (50%), Dec 2020 (97%), Jan 2021 (90%), Feb 2021 (100%), Mar 2021 (100%), Apr 2021 (90%), May 2021 (100%), Jun 2021 (100%), Jul 2021 (100%), Aug 2021 (77%), Sep 2021 (100%), Oct 2021 (100%), Nov 2021 (100%), Dec 2021 (97%), Jan 2022 (90%), Nov 2022 (27%), Dec 2022 (90%).