edu.ucar.opensky::articles:26031 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T19:57:45.912790 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7f76hgb Spring land temperature in Tibetan plateau and global-scale summer precipitation: Initialization and improved prediction 2022-12-01T00:00:00Z publication https://n2t.org/ark:/85065/d7f76hgb https://doi.org/10.1175/BAMS-D-21-0270.1 Xue, Y. author Diallo, I. author Boone, A. A. author Yao, T. author Zhang, Y. author Zeng, X. author Neelin, J. D. author Lau, W. K. M. author Pan, Y. author Liu, Y. author Pan, X. author Tang, Q. author Oevelen, P. J. v. author Sato, T. author Koo, M. author Materia, S. author Shi, C. author Yang, J. author Ardilouze, C. author Lin, Z. author Qi, X. author Nakamura, T. author Saha, S. K. author Senan, R. author Takaya, Y. author Wang, H. author Zhang, H. author Zhao, M. author Nayak, H. P. author Chen, Q. author Feng, J. author Brunke, M. A. author Fan, T. author Hong, S. author Nobre, P. author Peano, D. author Qin, Y. author Vitart, F. author Xie, S. author Zhan, Y. author KLOCKE, D. author Leung, R. author Li, X. author Ek, Michael B. author Guo, W. author Balsamo, G. author Bao, Q. author Chou, S. C. author Rosnay, P. d. author Lin, Y. author Zhu, Y. author Qian, Y. author Zhao, P. author Tang, J. author Liang, X. author Hong, J. author Ji, D. author Ji, Z. author Qiu, Y. author Sugimoto, S. author Wang, W. author Yang, K. author Yu, M. author UCAR/NCAR - Library publisher Subseasonal-to-seasonal (S2S) precipitation prediction in boreal spring and summer months, which contains a significant number of high-signal events, is scientifically challenging and prediction skill has remained poor for years. Tibetan Plateau (TP) spring observed surface -temperatures show a lag correlation with summer precipitation in several remote regions, but current global land-atmosphere coupled models are unable to represent this behavior due to significant errors in producing observed TP surface temperatures. To address these issues, the Global Energy and Water Exchanges (GEWEX) program launched the "Impact of Initialized Land Temperature and Snowpack on Subseasonal-to-Seasonal Prediction" (LS4P) initiative as a community effort to test the impact of land temperature in high-mountain regions on S2S prediction by climate models: more than 40 institutions worldwide are participating in this project. After using an innovative new land state initialization approach based on observed surface 2-m temperature over the TP in the LS4P experiment, results from a multimodel ensemble provide evidence for a causal relationship in the observed association between the Plateau spring land temperature and summer precipitation over several regions across the world through teleconnections. The influence is underscored by an out-of-phase oscillation between the TP and Rocky Mountain surface temperatures. This study reveals for the first time that high-mountain land temperature could be a substantial source of S2S precipitation predictability, and its effect is probably as large as ocean surface temperature over global "hotspot" regions identified here; the ensemble means in some "hotspots" produce more than 40% of the observed anomalies. This LS4P approach should stimulate more follow-on explorations. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright 2022 American Meteorological Society (AMS). None eng geoscientificInformation