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Interactions and teleconnections between midlatitudes and tropics
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Teleconnections (Interactions and teleconnections between midlatitudes and tropics)
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1: **Broad Objectives** 2: 3: //Better understand sub-(% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="740fd82e-cfb0-4b6a-aa7b-19d88b5362cc" id="10914806-5e3e-4edb-b227-c7f429ef8581" %)seasonal tropical(%%)-extratropical interaction pathways// 4: 5: //Identify periods and regions of increased predictability (“forecasts of opportunity”)// 6: 7: //Improve (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="1865abab-64be-4581-9348-e588a1852f6b" id="b06cb204-d28c-4e6d-adcc-482b068ed5c5" %)subseasonal(%%)-to-seasonal forecasts of weather and climate for applications// 8: 9: 10: **Research Priorities** 11: 12: //Understand physical mechanisms of tropical-extratropical interaction// 13: 14: Assess the physical mechanisms and robustness of mid-latitude circulation and weather responses to the spectrum of three-dimensional tropical diabatic heating on all subseasonal time scales, from tropical cyclones to the (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="792bc196-7466-41d8-8ec2-b838030048bc" id="9916767a-9d90-4c27-9f86-a484806421cb" %)boreal(%%) winter and summer ISO. Identify mechanisms of extra-tropical forcing of tropical convection and circulation on all subseasonal time scales. 15: 16: //Develop new comprehensive estimates of tropical heating// 17: 18: Synthesize available satellite radiance and radar measurements with modern reanalysis products to produce four-dimensional estimates of tropical heating. 19: 20: //Mechanistic numerical experiments to assess mechanisms and potential predictability// 21: 22: Carry out a broad array of numerical experiments with tropical diabatic heating estimates to further refine understanding of mechanisms. Use state-of-the art models with the (observed) tropical heating embedded to assess (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="5390c5bb-1324-4a89-8117-dffa92b30e41" id="cfda4187-fe7c-4f5b-a073-64213d66d96e" %)potential predictability(%%) of mid-latitude weather and circulation. 23: 24: //Development of down-scaling and error correction methods for applications//. 25: 26: Identify the main errors associated with (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="5758ea84-59e3-400f-a834-0d62497df8c3" id="20be1f7b-64bd-4f09-a971-646f0d225061" %)teleconnections(%%), especially those associated with (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="5758ea84-59e3-400f-a834-0d62497df8c3" id="664954df-7029-496d-af03-0bc2efd73d36" %)extratropical(%%) response to tropical forcing. Develop postprocessing techniques to correct systematic (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="43eb899b-dbe6-451a-8449-c71efc200331" id="de97f21b-0439-4967-8fc0-ec107d1c1774" %)teleconnection(%%) related model errors. 27: 28: For more (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="7c52fee1-b0e4-4b3a-b6b7-1868d5f72a8c" id="560058d3-26c2-43da-959b-fced654ba316" %)information, please(%%) access the full version of the sub-project [[Science Plan>>attach:Science_Plan_Teleconnection_Draft3_Final.pdf||rel="__blank"]]. 29: 30: 31: **Implementation** 32: 33: The objectives of the science plan will be implemented on two time scales. On a shorter time (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="35a4f311-60d2-4e78-bc43-b0bd5f22d973" id="14b17898-e614-4110-a0bc-30c78f597e83" %)scale they(%%) will benefit from being executed within the framework of a coordinated program, and on (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="35a4f311-60d2-4e78-bc43-b0bd5f22d973" id="c583941e-d1d2-4e1d-a2f8-3c092d187f20" %)longer time-scale(%%) they will evolve independently and interweave as progress in research reaches the stage of transfer to applications. 34: 35: An intense international program (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="e74472aa-f248-4212-a10a-d3886b006500" id="18b9f1cd-d0f2-499f-b765-132110ee34f0" %)of(%%) one year, the [[Year of Tropics-Midlatitude Interactions and Teleconnections>>attach:ProjectDescription_YTMIT_V1.pdf||rel="attach:CStanYTMIT_Small.pdf" title="YTMIT"]] (YTMIT), should be implemented. This program is designed to foster relationships between research, forecasting, and stakeholder communities, and will facilitate the sharing of common interests to explore the links between the tropics and midlatitudes. The international program will include an integrated (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="87c20d5e-9a75-4471-8bad-bd4ad3d35571" id="3c3c8190-71ee-44f1-a7e0-18c0b2386f64" %)observations(%%) component (using existing products of (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="87c20d5e-9a75-4471-8bad-bd4ad3d35571" id="061c6638-e31c-4048-8da7-e636cafffa94" %)Global Observing System(%%), (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="87c20d5e-9a75-4471-8bad-bd4ad3d35571" id="eb08138f-cd1f-42d0-8ff5-9db3eea14fa0" %)reanalyses(%%)), an operational forecast and (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="87c20d5e-9a75-4471-8bad-bd4ad3d35571" id="fd2634a4-b196-42ea-8497-96878795b400" %)reforecast(%%) component (using the S2S and NMME databases), an (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="87c20d5e-9a75-4471-8bad-bd4ad3d35571" id="0242f40b-af3d-49e9-8245-d8728819f131" %)applications(%%) component, and a research component aligned with the research priorities of this science plan and WCRP mission. The research component will consist of a combination of theoretical, diagnostic, and modeling studies and will be focused on understanding the physical nature of the tropics-(% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="633ebe6f-93f8-4b5d-b0a9-b0874d022106" id="95a31beb-5c0f-48a1-891f-5513f7ac2541" %)midlatitude(%%) interactions and (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="633ebe6f-93f8-4b5d-b0a9-b0874d022106" id="7e570fb5-7dc7-4717-aad1-42c76a9ce87d" %)teleconnections(%%) and their potential as sources of predictability. 36: 37: Collaboration with other WMO projects, and S2S (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="09ab879f-53eb-4cac-8124-7bed0cb4fcb0" id="86379c2a-2ad4-449a-a872-3ea678c7e62b" %)subprojects such(%%) as WCRP Working Group on Seasonal to Interannual Prediction (WGSIP), MJOTF-S2S Joint Project on MJO and Maritime Continent Interactions, S2S sub-project on extreme weather, and the S2S sub-project on verification. 38: 39: For more information about the YTMIT project, please contact [[(% id="9c690fe4-1d4e-4752-a34c-b84012ce0ae7" class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="55d3d039-533b-4667-bf70-f53366823abd" %)Cristiana(%%) Stan>>mailto:cstan@gmu.edu]]. 40: 41: 42: **Members** 43: 44: Hai Lin, Environment Canada, Canada 45: 46: (% class="GINGER_SOFTWARE_mark GINGER_SOFTWARE_mark" ginger_software_uiphraseguid="6ba1820f-d7a2-468d-b6dc-6298feef98e7" id="d2478d7c-ddbd-4a56-a110-1e16517f5157" %)Cristiana(%%) Stan, George Mason University, USA 47: 48: Jorgen Frederiksen, CSIRO, Australia 49: 50: Eric Maloney, Colorado State University, USA 51: 52: Franco Molteni, ECMWF 53: 54: Andrew Robertson, IRI, USA 55: 56: Courtney Schumacher, Texas A&M University, USA 57: 58: David Straus, George Mason University, GMU 59: 60: Steven Woolnough, University of Reading, UK
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