Skip to data content Skip to data search

NOAA NSSL MRMS Merged Reflectivity QCComp, UnQCBase and UNQCComp



Three types of merged reflectivity data, QCComp, UNQCBase and UNQCComp, are included in this dataset from the ICICLE (In-Cloud ICing and Large-drop Experiment) domain in tarred and gzipped NetCDF format. Spatial resolution: 0.01º Latitude (~1.11 km) x 0.01º Longitude (~1.01 km at 25ºN and 0.73 km at 49ºN). Data is sorted from top to bottom and east to west. The upper left corner is at 55ºN and -130ºW. Vertical resolution is 23 staggered layers from 0.5 to 10 km ASL. The file naming format is "ICICLE_MergedReflectivity*_yy-xx_20190307_netCDF.tar.gz" where yy-xx is the vertical resolution. This experimental product is the first iteration and may contain some artifacts/oddities. The domain covers only the area of the ICICLE field campaign. No MRMS data are available prior to 5 February due to the federal government shutdown in early 2019.

Any public presentations/publications using this data must include NSSL as co-author.

Archive note

NOTE: This is a large dataset. Order limitations are 32GB per order, so please check file sizes when ordering.  

IMPORTANT: For each order, unzip and untar the files in a separate directory with sufficient size (1-2TB) to ensure that files are not overwritten. Some of these files may untar/unzip to hundreds of Gigabytes.

Data access

  • ORDER data for delivery by FTP
    • authorization required

Additional information

Data Quality final
  • 1.0 (2021-11-18)
Subscribe Subscribe to receive email when new or updated data is available.
Related projects
Frequency continuous
Language English
GCMD Science Keywords Expand keywords
  • authorization required
Related links

Temporal coverage

Begin datetime 2019-02-05 00:00:00
End datetime 2019-03-08 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 55.00, Minimum (South) Latitude: 20.00
Minimum (West) Longitude: -130.00, Maximum (East) Longitude: -60.00

Primary point of contact information

Heather Reeves <>


Reeves, H. 2021. NOAA NSSL MRMS Merged Reflectivity QCComp, UnQCBase and UNQCComp. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 19 Jul 2024.

Today's date is shown: please replace with the date of your most recent access.

Additional citation styles

The citation text below is from the DataCite Content Resolver service and may take a few seconds to load. The styles and locales are obtained from CrossCite, which also provides a citation formatter. See ReFindit for another alternative. Formatting is not perfect: please verify and edit before use. Today's date is shown: please replace with the date of your most recent access.

Style: Locale:

Ancillary information

Metadata download

Note that your browser may not display the above metadata links, but automatically save them as files in a folder such as "Downloads"