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

    Metadata Updated: December 12, 2025

    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 (PMW_ 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 8kmx8km grid over the global domain from 60deg S to 60deg 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 8kmx8km / 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: 8kmx8km (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: 0.25deg lat/lon 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 Printed 2015-06-08 - Verify Document Currency Before Use 1 spatial resolution: 0.25deg lat/lon 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).

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date December 4, 2025
    Metadata Created Date December 12, 2025
    Metadata Updated Date December 12, 2025
    Reference Date(s) August 1, 2018 (publication)
    Frequency Of Update monthly

    Metadata Source

    Harvested from ncdc

    Other Data Resources

    Graphic Preview

    Global daily precipitation (mm) for 4 July, 2018, derived from the bias corrected CMORPH satellite precipitation estimates

    Additional Metadata

    Resource Type Dataset
    Metadata Date December 4, 2025
    Metadata Created Date December 12, 2025
    Metadata Updated Date December 12, 2025
    Reference Date(s) August 1, 2018 (publication)
    Responsible Party NOAA Climate Data Record Program Office (Point of Contact)
    Contact Email
    Guid gov.noaa.ncdc:C00948
    Access Constraints Cite as: Xie, Pingping; Joyce, Robert; Wu, Shaorong; Yoo, S.-H.; Yarosh, Yelena; Sun, Fengying; Lin, Roger, NOAA CDR Program (2019): NOAA Climate Data Record (CDR) of CPC Morphing Technique (CMORPH) High Resolution Global Precipitation Estimates, Version 1 [indicate subset]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/w9va-q159 [access date], Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
    Bbox East Long 180.0
    Bbox North Lat 90.0
    Bbox South Lat -90.0
    Bbox West Long -180.0
    Coupled Resource
    Frequency Of Update monthly
    Graphic Preview Description Global daily precipitation (mm) for 4 July, 2018, derived from the bias corrected CMORPH satellite precipitation estimates
    Graphic Preview File https://www.ncei.noaa.gov/pub/data/metadata/images/C00948_CMORPH.gif
    Graphic Preview Type GIF
    Harvest Object Id 7dbaaf24-676b-4434-abb7-78ec5888cb71
    Harvest Source Id 2cb3ef77-1683-4c2a-9119-dc65e50917c6
    Harvest Source Title ncdc
    Licence The quality of this version CMORPH is compromised for snowfall and cold season precipitation. In particular, it tends to under-estimate the precipitation amount during cold seasons over mid- and high latitudes.
    Lineage Bias corrected CMORPH is created using information from five categories of space-borne and in situ measurements. A complete description is available in the Algorithm Theoretical Basis Document.
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [180.0, -90.0], [180.0, 90.0], [-180.0, 90.0], [-180.0, -90.0]]]}
    Progress
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1998-01-01

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