Yoshi Chikamoto

Zhang, W., S.-Y. Wang, Y. Chikamoto, R. R. Gillies, M. D. LaPlante, and V. Hari (2024): A weather pattern responsible for increasing wildfires in the Western United States. Environmental Research Letters, in press, doi:10.1088/1748-9326/ad928f.

Link (open access)

Wright, T. E., Y. Chikamoto, J.B. Birch, and J. A. Lutz (2024): Remote Sensing Detection of Growing Season Freeze-Induced Defoliation of Montane Quaking Aspen (Populus tremuloides) in Southern Utah, USA. Remote Sensing, 16, no.18: 3477, doi:10.3390/rs16183477.

Link (open access)

Chikamoto, Y.,S. S. Wang, H. Chang, and C. L. Castro (2024): Tropical Inter-Basin Interaction as Effective Predictors of Late-Spring Precipitation Variability in the Southern Great Plains. J. Climate, 37, 6061–6080, doi:10.1175/JCLI-D-24-0013.1r.

Link (open access)

Chang, H.-I., Chikamoto, Y., Wang, S. S.-Y., Castro, C. L., LaPlante, M. D., Risanto, C. B., et al. (2024): Enhancing extreme precipitation predictions with dynamical downscaling: A convection-permitting modeling study in Texas and Oklahoma. Journal of Geophysical Research: Atmospheres, 129, e2023JD038765. doi:10.1029/2023JD038765.

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Stuivenvolt-Allen, J., S. S. Wang, Y. Chikamoto, J. D. Meyer, Z. F. Johnson, and L. Deng (2023): Growing Pacific Linkage with Western North Atlantic Explosive Cyclogenesis. J . Climate, 36, 7073–7090, doi:10.1175/JCLI-D-22-0784.1.

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Chikamoto, Y., W. Zhang, L. Hipps, S.-Y. S. Wang, R. R. Gillies and S. Bigalke (2023): Interannual variability and trends of summertime PM2.5-based air quality in the Intermountain West Environ. Res. Lett. 18, 044032, doi:10.1088/1748-9326/acc6e0.

Link (open access)

Birch, Joseph, Y. Chikamoto, R. DeRose, V. Manvailer, T. Hogg, J. Karst, D. Love and J. Lutz (2023): Frost associated defoliation in Populus tremuloides causes repeated growth reductions over 185 years. Ecosystems, 26, 843–859, doi:10.1007/s10021-022-00799-w.

Link (open access)

Hasan, N.A., Y. Chikamoto, M. J. McPhaden (2022): The influence of tropical basin interactions on the 2020–2022 double-dip La Niña. Front. Clim. 4:1001174. doi:10.3389/fclim.2022.1001174

Link (open access) [PDF with SI]

Wilkins, J. E., Y. Chikamoto, A. B. Miller, J. W. Smith (2021): Climate change and the demand for recreational ecosystem services on public lands in the continental United States Global Environmental Change, 70, 102365, doi:10.1016/j.gloenvcha.2021.102365.

Link (open access)

Stuivenvolt-Allen, J., S.-Y. Simon Wang, Z. Johnson, and Y. Chikamoto (2021): Atmospheric rivers impacting Northern California exhibit a quasi-decadal frequency. Journal of Geophysical Research: Atmospheres, 126, e2020JD034196, doi:10.1029/2020JD034196.

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Long, X., M. J. Widlansky, C. Spillman, A. Kumar, M. Balnaseda, P. Thompson, Y. Chikamoto, G. Smith, B. Huang, C.-S. Shin, M. A. Merrifield, W. Sweet, E. Leuliette, H. Annamalai, J. Marra, G. Mitchum (2021): Seasonal forecasting skill of sea level anomalies in a multi-model prediction framework. Journal of Geophysical Research: Oceans, 126, e2020JC017060, doi:10.1029/2020JC017060.

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Chikamoto, Y., S.-Y. Simon Wang, M. Yost, L. Yocom and R. R. Gillies (2020): Colorado River water supply is predictable on multi-year timescales owing to long-term ocean memory. Communications Earth & Environment, 1, 26, doi:10.1038/s43247-020-00027-0

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Outreach: [USU today] [Behind the paper]

Akbar, H., L. N. Allen, D. E. Rosenberg and Y. Chikamoto (2020): Ranchers Adapting to Climate Variability in the Upper Colorado River Basin, Climate, 8, 96, doi:10.3390/cli8090096.

Link (open access)

Chikamoto, Y., Z. F. Johnson, S.-Y. S. Wang, M. J. McPhaden and T. Mochizuki (2020): El Nino Southern Oscillation evolution modulated by Atlantic forcing. Journal of Geophysical Research: Oceans, 125, e2020JC016318, doi:10.1029/2020JC016318

[Link] [PDF]

Johnson, F. Z., Y. Chikamoto, S.-Y. S. Wang, M. McPhaden and T. Mochizuki (2020): Pacific Decadal Oscillation remotely forced by the equatorial Pacific and the Atlantic Oceans. Climate Dynamics, 55, 789–811, doi:10.1007/s00382-020-05295-2

Link (open access)

Chien, Y.-T., S.-Y. S. Wang, Y. Chikamoto, S. L. Voelker, J. D. D. Meyer and J.-H. Yoon (2019): North American Winter Dipole: Observed and Simulated Changes in Circulations. Atmosphere, 10(12), 793, doi:10.3390/atmos10120793

Link (open access)

Pokharel, B., S.‐Y. Wang, J. Meyer, S. Marahatta, B. Nepal, Y. Chikamoto, and R. Gillies (2019): The east–west division of changing precipitation in Nepal. Int. J. Climatol., 1-12, doi:10.1002/joc.6401

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Chikamoto, Y., A. Timmermann, M. J. Widlansky, S. Zhang, M. A. Balmaseda (2019): A drift-free decadal climate prediction system for the Community Earth System Model J. Climate, 32, 5967–5995, doi: 10.1175/JCLI-D-18-0788.1

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Cai, W., L. Wu, M. Lengaigne, T. Li, S. McGregor, J.-S. Kug, J.-Y. Yu, M. F. Stuecker, A. Santoso, X. Li, Y.-G. Ham, Y. Chikamoto, B. Ng, M. J. McPhaden, Y. Du, D. Dommenget, F. Jia, J. B. Kajtar, N. Keenlyside, X. Lin, J.-J. Luo, M. Martín-Rey, Y. Ruprich-Robert, G. Wang, S.-P. Xie, Y. Yang, S. M. Kang, J.-Y. Choi, B. Gan, G.-I. Kim, C.-E. Kim, S. Kim, J.-H. Kim, P. Chang (2019): Pantropical climate interactions. Science, 363, eaav4236, doi: 10.1126/science.aav4236

Link (open access)

Timmermann, A., S.-I. An, J.-S. Kug, F.-F. Jin, W. Cai, A. Capotondi, K. Cobb, M. Lengaigne, M. J. McPhaden, M. F. Stuecker, K. Stein, A. T. Wittenberg, K.-S. Yun, T. Bayr, H.-C. Chen, Y. Chikamoto, B. Dewitte, D. Dommenget, P. Grothe, E. Guilyardi, Y.-G. Ham, M. Hayashi, S. Ineson, D. Kang, S. Kim, W. Kim, J.-Y. Lee, T. Li, J.-J. Luo, S. McGregor, Y. Planton, S. Power, H. Rashid, H.-L. Ren, A. Santoso, K. Takahashi, A. Todd, G. Wang, G. Wang, R. Xie, W.-H. Yang, S.-W. Yeh, J. Yoon, E. Zeller, X. Zhang (2018): El Nino-Southern Oscillation Complexity. Nature, 559, 535--545.

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Johnson, Zachary F., Y. Chikamoto, J.-J. Luo, and T. Mochizuki (2018): Ocean impacts on Australian Interannual to Decadal Precipitation variability Climate, 6(3), 61; doi.org/10.3390/cli6030061.

Link (open access)

Chikamoto, Y., A. Timmermann, M. J. Widlansky, M. A. Balmaseda, and L. Stott (2017): Multi-year predictability of climate, drought, and wildfire in southwestern North America. Scientific Reports, doi:10.1038/s41598-017-06869-7.

Link (open access)

Outreach: US CLIVAR USU IBS

Stuecker, Malte F., A. Timmermann, F.‐F. Jin, Y. Chikamoto W. Zhang, A. T. Wittenberg, E. Widiasih, and S. Zhao (2017): Revisiting ENSO/Indian Ocean Dipole phase relationships Geophys. Res. Lett. 44, doi:10.1002/2016GL072308.

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Ham, Y.-G., Y. Chikamoto, J.-S. Kug, M. Kimoto, T. Mochizuki (2017): Tropical Atlantic-Korea teleconnection pattern during boreal summer season. Clm. Dyn., in press, doi:10.1007/s00382-016-3474-z.

Link (open access)

Purich, A., M. H. England, W. Cai, Y. Chikamoto, A. Timmermann, J. C. Fyfe, L. Frankcomba, G. A. Meehl, and J. M. Arblaster (2016): Tropical Pacific SST drivers of recetn Antarctic sea ice trends. J. Climate, 29, 8931–8948, doi:10.1175/JCLI-D-16-0440.1.

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Mochizuki, T., M. Kimoto, M. Watanabe, Y. Chikamoto, M. Ishii (2016): Inter-basin effects of the Indian Ocean on Pacific decadal climate change. Geophys. Res. Lett.,43, 7168–7175, doi:10.1002/2016GL069940.

Link (open access)

Chikamoto, Y., T. Mochizuki, A. Timmermann, M. Kimoto, and M. Watanabe (2016): Potential tropical Atlantic impacts on Pacific decadal climate trends. Geophys. Res. Lett., 43, 7143–7151, doi:10.1002/2016GL069544.

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Chikamoto, M. O., A. Timmermann, Y. Chikamoto, H. Tokinaga, and N. Harada (2015): Mechanisms and predictability of multi-year ecosystem variability in the North Pacific. Global Biogeochemical Cycles, 29, 2001-2019, doi:10.1002/2015GB005096.

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Imada, Y., H. Tatebe, M. Ishii, Y. Chikamoto, M. Mori, M. Arai, M. Watanabe, and M. Kimoto (2015): Predictability of two types of El Nino assessed using an extended seasonal prediction system by MIROC. Monthly Weather Review, 143, 4597–4617, doi:10.1175/MWR-D-15-0007.1.

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Chikamoto, Y., A. Timmermann, J.-J. Luo, T. Mochizuki, M. Kimoto, M. Watanabe, M. Ishii, S.-P. Xie, and F.-F. Jin (2015): Skilful multi-year predictions of tropical trans-basin climate variability. Nature Communications, 6:6869, doi:10.1038/ncomms7869.

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Chikamoto, Y., A. Timmermann, S. Stevenson, P. DiNezio, and S. Langford (2015): Decadal predictability of soil water, vegetation, and wildfire frequency over North America. Clim. Dyn., Vol. 45, pp.2213-2235, doi:10.1007/s00382-015-2469-5

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Stevenson, S., A. Timmermann, Y. Chikamoto, S. Langford, and P. DiNezio (2015): Stochastically Generated North American Megadroughts. J. Climate, Vol. 28, pp.1865–1880, doi:10.1175/JCLI-D-13-00689.1

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McGregor, S., A. Timmermann, M. Stuecker, M. H. England, M. Merrifield, F.-F. Jin, and Y. Chikamoto (2014): Recent Walker Circulation strengthening and Pacific cooling amplified by Atlantic warming. Nature Climate Change, doi:10.1038/nclimate2330.

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Mochizuki, T., M. Kimoto, Y. Chikamoto, M. Mori, M. Watanabe, M. Ishii (2014): Error Sensitivity to Initial Climate States in Pacific Decadal Hindcasts. SOLA, Vol. 10, pp.39–44.

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Mori, M., M. Kimoto, M. Ishii, S. Yokoi, T. Mochizuki, Y. Chikamoto, M. Watanabe, T. Nozawa, H. Tatebe, T. T. Sakamoto, Y. Komuro, Y. Imada, and H. Koyam (2013): Hindcast Prediction and Near-Future Projection of Tropical Cyclone Activity over the Western North Pacific Using CMIP5 Near-Term Experiments with MIROC. J. Meteor. Soc. Japan, Vol. 91, pp. 431-452, doi:10.2151/jmsj.2013-402.

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Doblas-Reyes, F.J., I. Andreu-Burillo, Y. Chikamoto, J. García-Serrano, V. Guémas, M. Kimoto, T. Mochizuki, L.R.L. Rodrigues, G.J. van Oldenborgh (2013): Initialized near-term regional climate change prediction Nature Communications, 4:1715, doi:10.1038/ncomms2704.

Link (open access)

Chikamoto Y., M. Kimoto, M. Watanabe, M. Ishii, and T. Mochizuki (2012): Relationship between the Pacific and Atlantic stepwise climate change during the 1990s. Geophys. Res. Lett., 39, L21710, doi:10.1029/2012GL053901.

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Chikamoto Y., M. Kimoto, M. Ishii, T. Mochizuki, T. T. Sakamoto, H. Tatebe, Y. Komuro, M. Watanabe, T. Nozawa, H. Shiogama, M. Mori, S. Yasunaka, and Y. Imada (2013): An overview of decadal climate predictability in a multi-model ensemble by climate model MIROC. Clim. Dyn., Vol. 40, pp.1201-1222, DOI:10.1007/s00382-012-1351-y.

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Tatebe, H., M. Ishii, T. Mochizuki, Y. Chikamoto, T. T. Sakamoto, Y. Komuro, M. Mori, S. Yasunaka, M. Watanabe, K. Ogochi, T. Suzuki, T. Nishimura, and M. Kimoto (2012): The Initialization of the MIROC climate models with hydrographic data assimilation for decadal prediction. J. Meteor. Soc. Japan, special issue, Vol. 90A, pp.275-294.

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Mochizuki T., Y. Chikamoto, M. Kimoto, M. Ishii, H. Tatebe, Y. Komuro, T. T. Sakamoto, M. Watanabe, and M. Mori (2012): Decadal prediction using a recent series of MIROC global climate models. J. Meteor. Soc. Japan, special issue, Vol. 90A, pp.373-383.

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Chikamoto, Y., M. Kimoto, M. Ishii, M. Watanabe, T. Nozawa, T. Mochizuki, H. Tatebe, T. T. Sakamoto, Y. Komuro, H. Shiogama, M. Mori, S. Yasunaka, Y. Imada, H. Koyama, M. Nozu, and F.-f. Jin (2012): Predictability of a stepwise shift in Pacific climate during the late 1990s in hindcast experiments using MIROC. J. Meteor. Soc. Japan, special issue, Vol. 90A, pp.1-21. DOI:10.2151/jmsj.2012-A01.

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Toyoda T., T. Awaji, N. Sugiura, S. Masuda, H. Igarashi, Y. Sasaki, Y. Hiyoshi, Y. Ishikawa, T. Mochizuki, T. T. Sakamoto, H. Tatebe, Y. Komuro, T. Suzuki, T. Nishimura, M. Mori, Y. Chikamoto, S. Yasunaka, Y. Imada, M. Arai, M. Watanabe, H. Shiogama, T. Nozawa, A. Hasegawa, M. Ishii and M. Kimoto (2011): Impact of the assimilation of sea ice concentration data on an atmosphere-ocean-sea ice coupled simulation of the arctic ocean climate. SOLA, Vol. 7, pp.37--40, doi:10.2151/sola.2011-010.

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Chikamoto Y., Y. Tanimoto, H. Mukougawa and M. Kimoto (2010): Subtropical Pacific SST variability related to the local Hadley circulation during the premature stage of ENSO. J. Meteor. Soc. Japan, Vol. 88, No. 2, pp. 183--202.

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Mochizuki, T., M. Ishii, M. Kimoto, Y. Chikamoto, M. Watanabe, T. Nozawa, T. T. Sakamoto, H. Shiogama, T. Awaji, N. Sugiura, T. Toyoda, S. Yasunaka, H. Tatebe, and M. Mori (2010): Pacific Decadal Oscillation hindcasts relevant to near-term climate prediction. Proc. Natl. Acad. Sci. USA, doi: 10.1073/pnas.0906531107.

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Chikamoto Y., H. Mukougawa, T. Kubota, H. Sato, A. Ito, and S. Maeda (2007): Evidence of growing bred vector associated with the tropical intraseasonal oscillation. Geophys. Res. Lett., Vol. 34, L04806, doi:10.1029/2006GL028450.

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Chikamoto, Y., and Y. Tanimoto (2006): Air-sea humidity effects on the generation of tropical Atlantic SST anomalies during the ENSO events. Geophys. Res. Lett., Vol. 33, L19702, doi:10.1029/2006GL027238.

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Chikamoto, Y., and Y. Tanimoto (2005): Role of specific humidity anomalies in Caribbean SST response to ENSO. J. Meteor. Soc. Japan, Vol. 83, No. 6, pp.959--975.

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[Poster] Chikamoto Y.: A drift-free climate prediction system using ocean assimilation approach in the Community Earth System Model. AGU fall meeting 2019, Dec 9-13, 2019, San Francisco, CA.

[Poster] Chikamoto Y.: A drift-free climate prediction system using ocean assimilation approach in the Community Earth System Model. EGU General Assembly 2019, April 7-12, 2019, Vienna, Austria.

[Invited Oral] Chikamoto Y.: Research on decadal climate prediction system development and earth system predictability. Autumn meeting 2018 in the Meteorological Society of Japan, October 29-November 1, 2018, Sendai, Japan.

[Poster] Chikamoto Y.: Multi-year prediction of climate, drought, and wildfire in southwestern North America using CESM. International Conferences on Subseasonal to Decadal Prediction, September 17-21, 2018, Boulder, CO, USA.

[Invited Oral] Chikamoto Y.: Climate variability and predictability. International Conference on Resilient Design & Climate Change Adaptation, August 17, 2018, Busan, South Korea.

[Oral] Chikamoto Y.: Multi-year prediction of climate, drought, and wildfire in southwestern North America using CESM. AOGS 15th Annual Meeting, June 3-8, 2018, Honolulu, Hawaii, USA.

[Poster] Chikamoto Y.: Multi-year prediction of climate, drought, and wildfire in southwestern North America using CESM. EGU General Assembly 2018, April 8-13, 2018, Vienna, Austria.

[Invited Oral] Chikamoto Y.: Climate Variations and Predictions. The 2018 Utah Water Users Workshop, March 19-21, 2018, St. George, Utah.

[Oral] Chikamoto Y.: Tropical decadal predictability associated with Atlantic-Pacific interaction. Tropical Inter-basin Interactions. Jan 20-21, 2018, Xiamen, China.

[Invited Oral] Chikamoto Y.: Multi-year prediction of climate, drought and wildfire in southwestern North America using CESM. International Coupled Data Assimilation Symposium & the 11th National Ocean Data Assimilation Conference of China. Nov 5-8, 2017, Qingdao, China.

[Oral] Chikamoto Y.: Potential Tropical Atlantic Impacts on tropical Pacific decadal climate trends. ENSO Complexity Workshop. Oct 16-20, 2017, Busan, South Korea.

[Invited Oral] Chikamoto Y.: Skillful multi-year predictions of tropical trans-basin climate variability. 16th CAS-TWAS-WMO Forum. International Symposium on Advances in Seasonal to Decadal Prediction. Sep 18-20, 2017, Beijing, China.

[Oral] Chikamoto Y.: Multi-year predictions of North American climate, drought, and wildfire. CESM workshop 2017. June 19-22, 2017, Boulder Colorado, USA.

[Invited Oral] Chikamoto Y.: Skillful multi-year predictions of tropical Atlantic-Pacific interaction. JpGU-AGU Joint Meeting 2017. May 20-25, 2017, Makuhari, Chiba, Japan.

[Invited Oral] Chikamoto Y.: Prospects for future water availability in Utah. Spring Runoff Conference, March 28-29, 2017, Utah State University, Logan, Utah, USA.

[Oral] Chikamoto Y.: Skillful multi-year predictions of tropical trans-basin climate variability. Joint US-Japan Workshop on Climate Change and Variability, March 21-22, 2016, Scripps Institution of Oceanography, US San Diego, San Diego, California, USA.

[Invited Oral] Chikamoto Y.: Decadal potential predictability of soil water, vegetation, and wildfire frequency over North America. Climate Predictions: Improving our Understanding of Processes and Mechanisms to make Better Predictions, June 7-12, 2015, Aspen, Colorado, USA.

[Poster] Chikamoto, Y., A. Timmermann, S. Stevenson, P. DiNezio and S. Langford: Decadal Potential Predictability of Soil Water, Vegetation, and Wildfire Frequency over North America. 2014 AGU fall meeting, December 15-19, 2014, San Francisco, California, USA.

[Oral] Chikamoto, Y.: Decadal predictability of mega-droughts in North America. International Workshop on Climate System Modeling, March 10-11, 2014, Honolulu, Hawaii, USA.

[Oral] Chikamoto, Y., A. Timmermann, N. Schneider, M. Widlansky, and S. Langford: System for Interannual-to-decadal Climate Prediction Using the Earth System Model CESM. 2014 Ocean Science meeting, February 23-28, 2014, Honolulu, Hawaii, USA.

[Oral] Chikamoto, Y., M. Kimoto, M. Ishii, M. Watanabe, and T. Mochizuki: Impact of North Atlantic Warming on Pacific Stepwise Climate Change during the 1990s. Asian Oceania Geosciences Society 10th annual meeting, June 24-28, 2013, Brisbane, Australia.

[Oral] Chikamoto, Y., A. Timmermann, S. Stevenson, and P. DiNezio: Decadal potential predictability of North American hydrology in CESM. 18TH ANNUAL CESM WORKSHOP, June 17-20, 2013, Breckenridge, CO, USA.

[Oral] Chikamoto, Y., A. Timmermann, and S. Stevenson: Decadal predictability of land hydrology over North America in CESM. European Geosiences Union General Assembly 2013, April 7-12, 2013, Vienna, Austria.

[Poster] Chikamoto, Y., M. Kimoto, M. Ishii, M. Watanabe, T. Mochizuki, and A. Timmermann: Relationship of predictability between the Pacific and Atlantic climate change. 3rd International Conference on Earth System Modelling, 17-21 September 2012, Hamburg, Germany.

[Oral] Chikamoto, Y., M. Kimoto, M. Ishii, M. Watanabe, T. Mochizuki, and A. Timmermann: Relationship of a stepwise shift between the tropical Pacific and the Atlantic climate. 2012 Summer Workshop on ENSO at the University of Hawaii, 20-22 June 2012, Honolulu, Hawaii.

[Oral] Chikamoto, Y., M. Kimoto, M. Ishii, M. Watanabe, T. Nozawa, T. Mochizuki, H. Tatebe, T. T. Sakamoto, and H. Shiogama: Predictability of a stepwise shift in Pacific climate during the late 1990s. International Workshop on Climate Change Projection and High Performance Computing, 12-15 March 2012, Maui, Hawaii, USA.

[Poster] Chikamoto, Y., M. Kimoto, M. Ishii, M. Watanabe, T. Nozawa, T. Mochizuki, H. Tatebe, T. T. Sakamoto, and H. Shiogama: Predictability of a stepwise shift in Pacific climate during the late 1990s in hindcast experiments using MIROC. AGU Fall Meeting, GC43A-0884, 5-9 December 2011, San Francisco, California, USA.

[Poster] Chikamoto, Y., M. Kimoto, M. Ishii, M. Watanabe, T. Nozawa, T. Mochizuki, H. Tatebe, T. T. Sakamoto, Y. Komuro, H. Shiogama, M. Mori, S. Yasunaka, Y. Imada, H. Koyama, and M. Nozu: Team MIROC: Predictability of a stepwise shift in Pacific climate during the late 1990s in hindcast experiments by MIROC. WCRP OSC Climate Research in Service to Society, 24-28 October 2011,Denver, CO, USA.

[Poster] Chikamoto, Y., M. Kimoto, M. Watanabe, M. Ishii, and T. Mochizuki: Team MIROC: Multi-year predictability of tropical Atlantic climate variability. Poster] Chikamoto Y., Y. Tanimoto, H. Mukougawa and M. Kimoto: Subtropical Pacific SST Variability Related to the Local Hadley Circulation During the Premature Stage of ENSO. AGU Fall Meeting, 14-18 December 2009, San Francisco, California, USA.

[Oral] Chikamoto Y., M. Kimoto, T. Mochizuki and M. Ishii: Simple ensemble generation method for decadal climate variability. The Eighth Workshop on Decadal Climate Variability; Decadal Climate Predictability and Prediction: Where Are We? 12-15 October 2009, St Michaels, Maryland, USA.

[Poster] Chikamoto Y., M. Kimoto, M. Watanabe, M. Mori, M. Ishii, and T. Mochizuki: Ensemble Generation Method for Decadal Climate Prediction. IAMAS/IAPSO/IACS Joint Assembly, Montreal, Canada, July 2009.

[Oral] Chikamoto Y.: Ensemble Generation Method for Near-term Climate Prediction. International Workshop on Global Change Projection, Yokohama, Japan, February 2009.

[Poster] Chikamoto Y., H. Mukougawa, T. Kubota, H. Sato, A. Ito, and S. Maeda: Evidence of Unstable Mode Associated with Tropical Intraseasonal Oscillation. AGU fall meeting, San Francisco, CA, USA, December 2006.

[Oral] Chikamoto Y., H. Mukougawa, T. Kubota, H. Sato, A. Ito, and S. Maeda: Evidence of Unstable Mode Associated with Tropical Intraseasonal Oscillation. 4th KAGI21 International Symposium, K2b-01, Kyoto, Japan, December 2006.

[Poster] Chikamoto Y. and Y. Tanimoto: The remote influence of El Nino and La Nina on the tropical Atlantic air-sea system. IUGG, JSP02/03P/D-004, Sapporo, Japan, July, 2003.

[Poster] Chikamoto Y. and Y. Tanimoto: The responses of atmosphere-ocean system in the Atlantic associated with El Nino and La Nina. EGS-AGU-EUG Joint Assembly, P1649, Nice, France, April, 2003.