IMERG Monthly Climatology

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  • 
    ID: 4760 Visualization

    Grand Average Precipitation Climatology

    Oct. 16th, 2019
    (updated May 3rd, 2023)

    Grand Average Precipitation Climatology || The Grand Average Climatology dataset covers June 2000 to May 2019. It shows the well-known structure of global precipitation: Intertropical Convergence Zone (ITCZ) near the Equator, South Pacific Convergence Zone (SPCZ) and smaller South Atlantic Convergence Zone (SACZ), relatively dry subtropical highs, and mid-latitude storm tracks. The relatively fine spatial resolution (0.1° lat./lon.) gives a more detailed picture than the previous NASA product (Tropical Rainfall Measuring Mission [TRMM] Multi-satellite Precipitation Analysis [TMPA], 0.25°), and its near-global coverage, better sampling in time, and improved algorithms provide wider coverage and more confidence in the results. The satellite input allows NASA researchers to estimate precipitation over both land and ocean, which networks of surface sensors do not provide. The most reliable estimates are provided over ocean; warm land is second-best, coastal areas are third, and snow/ice-covered regions are least certain. ||

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  • 
    ID: 4759 Visualization

    IMERG Daily Climatology

    Oct. 15th, 2019
    (updated Aug. 25th, 2023)

    Example composite showing the daily climatology along with the appropriate month and colorbar. || The daily climatology dataset covers January 2001 to December 2018, computed as a trailing 30-day average to reduce the random noise due to isolated big events. Notable features include the annual cycle of the InterTropical Convergence Zone (ITCZ) following the motion of the Sun (with a time lag) over both land and ocean, the seasonal shift of the Asian Monsoon between South Asia in the boreal summer and Australia in the boreal winter, the North American Monsoon in the late boreal summer in northern Mexico and southwestern U.S., and the dry summer/wet winter pattern in the Mediterranean Sea area and the west coast of the U.S. ||

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• Used as a source in

  • 
    ID: 13909 Produced Video

    How NASA Satellites Help Model the Future of Climate

    Aug. 24th, 2021
    (updated May 3rd, 2023)

    Music: "Connections Established," "Data Visions," Universal Production MusicComplete transcript available. || Continuing key observations of the Earth is really important to see how our atmosphere, land and oceans are changing over time. A long term record, combined with cutting edge observations from the new NASA Earth System Observatory, will continue to push boundaries to better understand our ever changing Earth. ||

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