PPT-ECMWF "uncoupled" coupled model: Coupling using subroutine

calls CW2015 Kristian S Mogensen Marine Prediction Section kmogensenecmwfint Overview of talk Baseline The focus of this talk is going to be on coupling of IFS and WAM to NEMO Motivation. strategies for coupled 4D-Var data assimilation using an idealised atmosphere-ocean model. Polly Smith, Alison . Fowler & Amos . Lawless. School of Mathematical and Physical . Sciences, . University of . Eric . Prebys. , FNAL. Coupled Harmonic Oscillators. USPAS, Knoxville, TN, January 20-31, 2014. Lecture 12 - Coupled Resonances. 2. Equations of motion. Define uncoupled frequencies:. Try a solution of he form:. Building an idealised coupled system. Polly Smith, Amos . Lawless, Alison Fowler*. School of Mathematical and Physical Sciences, University of Reading, UK. * funded by NERC. Outline. Recap. objectives. Review of Splitting. Caused by shift due to magnetic fields of adjacent protons. We say that these protons are “coupled”. Protons may be coupled to different degrees. Coupling constant. Typically 7 Hz for adjacent sp. Nick . Bassill. Supported by DOE grant DEFG0208ER64557. Sample Track Differences. 0000 UTC 23 October. 1200 UTC 23 October. 0000 UTC 24 October. 1200 UTC 24 October. BLACK = Best Track . RED = ECMWF . Call . suba. Call . suba. Call . suba. Next instruction. Next instruction. Next instruction. Start of subroutine. Subroutine . suba. Jump back. Only one copy of the code is placed in memory. Whenever we wish to use the code, a jump is made to it . Subroutines . and Stacks. 1. Subroutines. Separate, independent module of program, performs a specific task. shortens code, provide reusable “tools”. High-level languages typically have libraries of subroutines.. Alessandro . D’Elia . on behalf of UMAN Collaboration. 1. Damped and detuned design. Detuning: A smooth variation in the iris radii spreads the dipole frequencies. This spread does not allow wake to add in phase. Example: Our function to find the largest element of an array might be re-used in many different programs. A . subroutine. allows us to write that functionality in an . abstract way. so that we, or others, can re-use it without modification. The stack is a special area in memory used by the CPU to store . register information . or general data information during program . execution. The . stack has a top and a bottom. The . SP register is the special register that controls the address . Exploring Using Artificial Intelligence (AI) for NowCasting and NWP S. Boukabara*, E. Maddy + , A. Neiss + , K. Garrett * , E. Jones + , K. Ide ~ , N. Shahroudi + and K. Kumar + *NOAA/NESDIS Center for Satellite Applications and Research (STAR 1. Saha-UMAC-09Aug2016. Atmosphere. , Land, Ocean, . Seaice. , Wave, . Chemistry, . Ionosphere. Data Assimilation cycle. Analysis frequency H. ourly. Forecast length . 9 . hours. Resolution . 10 . Polly Smith, Alison . Fowler & Amos . Lawless. School of Mathematical and Physical . Sciences, . University of . Reading, UK.. Introduction (1). Typically, . initial conditions for coupled atmosphere-ocean model forecasts . Land Surface Data . Assimilation – Part 2 . Patricia de Rosnay. Outline. Part I (Monday 7. . March). . Introduction. Snow analysis. Screen level parameters analysis. ‏. Part II (Tuesday 8. .