Advancing South American water and climate science through multidecadal Convection-Permitting modeling

The South America Affinity Group (SAAG) was established in early 2019 by the National Center for Atmospheric Research (NCAR) Water Systems Program as a community effort focused on improving hydroclimate science over South America. SAAG supports large research efforts such as the ANDEX Regional Hydroclimate Program (Espinoza et al. 2020) as well as individual research groups. The group started with a dozen members and quickly grew to over 100 participants from more than 10 countries. For the past four years, the SAAG has been meeting online every two weeks and has organized sessions at international conferences such as the American Geophysical Union Fall Meeting and the Convection-Permitting Climate Workshop (Prein et al. 2022). At the core of the SAAG effort are two multidecadal convection-permitting (CP) model simulations with 4-km grid spacing for historical and future climates over the South American continent. Additionally, a major observational data collection effort has been undertaken, including in situ station data from South American meteorological and water services, gridded products, satellite-based observations, and field campaign data (NCAR 2023a). This article discusses the research needs and scientific goals that drive this community of scientists with diverse backgrounds and interests.

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Related Dataset #1 : Multi-decadal Convection-permitting Simulation of Current Climate over South America using WRF

Related Service #1 : Cheyenne: SGI ICE XA Cluster
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Author Dominguez, F.
Rasmussen, Roy M.
Liu, Changhai
Ikeda, Kyoko
Prein, Andreas
Varble, A.
Arias, P. A.
Bacmeister, Julio
Bettolli, M. L.
Callaghan, Patrick
Carvalho, L. M. V.
Castro, C. L.
Chen, Fei
Chug, D.
Chun, K. P. (.
Dai, A.
Danaila, L.
da Rocha, R. P.
Nascimento, E. d. L.
Dougherty, Erin M.
Dudhia, Jimy
Eidhammer, Trude
Feng, Z.
Fita, L.
Fu, R.
Giles, J.
Gilmour, H.
Halladay, K.
Huang, Y.
Iza Wong, A. M.
Lagos-Zúñiga, M. Á.
Jones, C.
Llamocca, J.
Llopart, M.
Martinez, J. A.
Martinez, Carlos J.
Minder, J. R.
Morrison, Monica
Moon, Zachary
Mu, Y.
Neale, Richard
Núñez Ocasio, Kelly M.
Pal, S.
Potter, E.
Poveda, G.
Puhales, F.
Rasmussen, K. L.
Rehbein, A.
Rios-Berrios, Rosimar
Risanto, C. B.
Rosales, A.
Scaff, L.
Seimon, A.
Somos-Valenzuela, M.
Tian, Yang
Van Oevelen, P.
Veloso-Aguila, D.
Xue, Lulin
Schneider, Timothy
Publisher UCAR/NCAR - Library
Publication Date 2024-01-01T00:00:00
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Topic Category geoscientificInformation
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Metadata Date 2025-07-10T20:05:33.119876
Metadata Record Identifier edu.ucar.opensky::articles:26945
Metadata Language eng; USA
Suggested Citation Dominguez, F., Rasmussen, Roy M., Liu, Changhai, Ikeda, Kyoko, Prein, Andreas, Varble, A., Arias, P. A., Bacmeister, Julio, Bettolli, M. L., Callaghan, Patrick, Carvalho, L. M. V., Castro, C. L., Chen, Fei, Chug, D., Chun, K. P. (., Dai, A., Danaila, L., da Rocha, R. P., Nascimento, E. d. L., Dougherty, Erin M., Dudhia, Jimy, Eidhammer, Trude, Feng, Z., Fita, L., Fu, R., Giles, J., Gilmour, H., Halladay, K., Huang, Y., Iza Wong, A. M., Lagos-Zúñiga, M. Á., Jones, C., Llamocca, J., Llopart, M., Martinez, J. A., Martinez, Carlos J., Minder, J. R., Morrison, Monica, Moon, Zachary, Mu, Y., Neale, Richard, Núñez Ocasio, Kelly M., Pal, S., Potter, E., Poveda, G., Puhales, F., Rasmussen, K. L., Rehbein, A., Rios-Berrios, Rosimar, Risanto, C. B., Rosales, A., Scaff, L., Seimon, A., Somos-Valenzuela, M., Tian, Yang, Van Oevelen, P., Veloso-Aguila, D., Xue, Lulin, Schneider, Timothy. (2024). Advancing South American water and climate science through multidecadal Convection-Permitting modeling. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d79c72jc. Accessed 03 August 2025.

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