NOAA Climate Data Record (CDR) of CPC Morphing Technique (CMORPH) High Resolution Global Precipitation Estimates, Version 1

This dataset contains the bias-corrected CPC MORPHing technique (CMORPH) global precipitation analyses, version 1, and is obtained from the NOAA Climate Data Record [https://www.ncei.noaa.gov/products/climate-data-records/precipitation-cmorph].

The following description is from the NOAA Climate Data Record CMORPH dataset page:

This data set is for the bias-corrected, reprocessed CPC Morphing technique (CMORPH) high-resolution global satellite precipitation estimates. The CMORPH satellite precipitation estimates are created in two steps. First, the purely satellite-based global fields of precipitation are constructed through integrating Level 2 retrievals of instantaneous precipitation rates from all available passive microwave measurements aboard low earth orbiting platforms. Bias in these integrated satellite precipitation estimates is then removed through comparison against CPC daily gauge analysis over land and adjustment against the Global Precipitation Climatology Project (GPCP) merged analysis of pentad precipitation over ocean. The bias corrected CMORPH satellite precipitation estimates are created on an 8 km by 8 km grid over the global domain from 60 degrees S to 60 degrees N and in a 30-minute interval from January 1, 1998. Due to the delay of some input data sets, this formal version (Version 1) bias corrected CMORPH is produced manually once a month at a latency of 3-4 months.

For the CDR production, the bias corrected CMORPH generated at its native resolution of 8 km by 8 km / 30-minute is upscaled to form THREE sets of data files of different time/space resolution for improved user experience:

a) the full-resolution CMORPH data Output variable: precipitation rate in mm/hour spatial resolution: 8 km by 8km (at equator) spatial coverage: global (60S-60N) temporal resolution: 30min data period: January 1, 1998 to the present

b) Hourly CMORPH Output variable: precipitation rate in mm/hour spatial resolution: 0.25 degrees latitude/longitude spatial coverage: global (60S-60N) temporal resolution: hourly data period: January 1, 1998 to the present

c) Daily CMORPH Output variable: daily precipitation in mm/day spatial resolution: 0.25 degrees latitude/longitude spatial coverage: global (60S-60N) temporal resolution: hourly data period: January 1, 1998 to the present

(b) and (c) are derived from and quantitatively consistent with the CMORPH at its original resolution (a).

To Access Resource:

Questions? Email Resource Support Contact:

  • datahelp@ucar.edu

Temporal Range

  • Begin:  1998-01-01T0000+00
    End:  2025-09-30T2359+00

Keywords

Resource Type dataset
Temporal Range Begin 1998-01-01T0000+00
Temporal Range End 2025-09-30T2359+00
Temporal Resolution N/A
Bounding Box North Lat 60.0
Bounding Box South Lat -60.0
Bounding Box West Long -180.0
Bounding Box East Long 180.0
Spatial Representation grid
Spatial Resolution 0.25 degree
0.073 degree
Related Links

Related Resource #1 : NOAA Climate Data Record of CMORPH Precipitation - Official site
Additional Information N/A
Resource Format NetCDF4
Standardized Resource Format NetCDF
Asset Size 446169.262 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name N/A
Resource Support Email datahelp@ucar.edu
Resource Support Organization
Distributor NSF NCAR Geoscience Data Exchange

Metadata Contact Name N/A
Metadata Contact Email datahelp@ucar.edu
Metadata Contact Organization NSF NCAR Geoscience Data Exchange

Author Xie, Pingping
Joyce, Robert
Wu, Shaorong
Yoo, S. -H.
Yarosh, Yelena
Sun, Fengying
Lin, Robert
Publisher NSF National Center for Atmospheric Research

Publication Date 2020-07-22
Digital Object Identifier (DOI) https://doi.org/10.5065/0EFN-KZ90
Alternate Identifier d502002
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress onGoing
Metadata Date 2026-03-01T10:20:33Z
Metadata Record Identifier edu.ucar.gdex::d502002
Metadata Language eng; USA
Suggested Citation Xie, Pingping, Joyce, Robert, Wu, Shaorong, Yoo, S. -H., Yarosh, Yelena, Sun, Fengying, Lin, Robert. (2020). NOAA Climate Data Record (CDR) of CPC Morphing Technique (CMORPH) High Resolution Global Precipitation Estimates, Version 1. NSF National Center for Atmospheric Research. https://doi.org/10.5065/0EFN-KZ90. Accessed 02 March 2026.

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