Earth  ID: 4760

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.

Used Elsewhere In


Visualization Credits

Alex Kekesi (GST): Lead Visualizer
Horace Mitchell (NASA/GSFC): Data Visualizer
George Huffman (NASA/GSFC): Lead Scientist
Dalia B Kirschbaum (NASA/GSFC): Lead Scientist
Ryan Fitzgibbons (USRA): Lead Producer
Joy Ng (USRA): Producer
Laurence Schuler (ADNET): Technical Support
Ian Jones (ADNET): Technical Support
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NASA's Scientific Visualization Studio

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Data Used:
Note: While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site.

DLESE >> Atmospheric science
SVS >> Rainfall
GCMD >> Earth Science >> Atmosphere >> Precipitation
GCMD >> Earth Science >> Atmosphere >> Precipitation >> Precipitation Amount
GCMD >> Earth Science >> Atmosphere >> Precipitation >> Rain
NASA Science >> Earth

GCMD keywords can be found on the Internet with the following citation: Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version