[ArchiveReport Back] [wiki:Arx2021 Previous Year] [wiki:Arx2023 Next Year] '''10^th^ February 2022''' {{{ Duration: 50mn Participants: Ehouarn, Jean-Yves, Thomas, Lucas, Margaux, Jiandong, Christophe, Aymeric, Antoine News: - None Recent commits: https://trac.lmd.jussieu.fr/Planeto/log ============== - None Recent tickets: https://trac.lmd.jussieu.fr/Planeto/report/1 ============== - None Hot topics: ========== * Finalizing the DARI request for computing hours (deadline next Monday morning!): - For Mars: Goal: Finalizing GCM6 + producing MCD6 - CO2+water+dust cyle tuning (Antoine) - non-oro GW (+possible orographic GW re-tuning) Jiandong - CO2 clouds (Christophe => Lola + Anni) => 50kh ? - GCM6 runs for MCD6 + validation (Ehouarn, Romain, Thomas) => 50kh? - Dynamico + OpenMP work (Romain) - other things? - For Paleo-Mars (past and ancient Mars): => PEM (Romain) + Lucas + Antony => ~400kh - the work about adding sub-grid slopes (Lucas) can be included in this section * Improving the water and dust cycles (Antoine) - Ran simulations and checked that the non-conservation of water is ~0.2% per year which is "reasonable" to proceed... - running with different albedos and thermal inertia (800 and 1500) of H2O ice deposit gets a too dry water cycle in both cases. Now testing with lower albedos for ground ice and frost. - should commit the changes for dust cycle v6 to the trunk - wondering about making a "climatology" from MCS data over MYs to compare to the "clim" simulation * Non-orographic GW (Jiandong) - gets some polar warming which is closer to MCS obs - amplitude of the phase is improved but not perfect. - temperature field not affected below ~40km but winds are. * OpenMP:(Romain) - TBC Jean-Yves: - made comparisons of Deuterium density between GCM MY33 and MAVEN/IUS D is overall underestimated by the GCM => due to missing ionospheric reactions for D ? will discuss this with Francisco. Thomas: - the MCD web interface: is adding altitude of observer to spherical projections - working on slope wind model with simple model equation for theta }}} '''3^rd^ February 2022''' {{{ Duration: 1h Participants: Ehouarn, Francois, Christophe, Antoine, Lucas, Thomas, Aymeric News: - ACS SWT#13 yesterday and today (resumes at 1pm with Roland talking about Data Assimilation of TIRVIM, so let's keep this POULDP short!) Recent commits: https://trac.lmd.jussieu.fr/Planeto/log ============== - None Recent tickets: https://trac.lmd.jussieu.fr/Planeto/report/1 ============== - None Hot topics: ========== * Improving the water and dust cycles (Antoine) - tests water conservation over 10 sols; non-conservation is from the dynamics mostly looked at total atmospheric mass evolution, not conserved in dynamics, even without CO2 condensation - tests renormalizing atmospheric mass/water at the beginning of the physics ongoing * Non-orographic GW (Jiandong) - TBC * OpenMP:(Romain) - TBC Thomas: - Slope winds in the MCD: changing the vertical distribution to be more uneven near the surface improves things. - Some discussion about underlying hypothesis for evaluation of theta lower (surface) boundary condition. }}} '''27^th^ January 2022''' {{{ Bonjour, Ehouarn mentionned to me that he had not received last week Mars POULDP minutes... I was initially surprised but after checking, I realise that I only sent them to myself. No wonder ! Oh well. At last here are last weeks minutes : ***************************************** Duration: 80 mn Participants: Lucas, Siteng, Romain, Christophe, Margaux, Thomas Aymeric, Sandrine, Francois, Antony, Jiandong News: - Sandrine's TIRVIM paper is accepted, Siteng's TIRVIM paper is in revision - Mars Atmosphere Workshop back in preparation.. Recent commits: https://trac.lmd.jussieu.fr/Planeto/log ============== Nothing new. Recent tickets: https://trac.lmd.jussieu.fr/Planeto/report/1 ============== - ticket about 32um emissivity: Christophe did add more information - ticket about initracer : christophe updated the ticket Various topics: ============== * Thomas : designed a program to obtain the best parameters for his slope winds model. Show test results in various craters. - Problem with the comparison in Korolev because the topography is different in the MCD and in the mesoscale simulations used => Discussion : Aymeric realises that he made this simulation assuming a topography without ice glaciers during studies with Jack Holt... - Discussion : more levels could be used near the surface to optimize the wind calculations at 1 m. * Romain: Problem with crashes of the GCM at the very beggining of test runs after retarting the planetary evolution model. * Siteng Compare TIRVIM near-equatorial semidiurnal tide phase with GCM: when the observation sampling is taken into account, there is a difference up to 3 hours... The semidiurnal wavelength is also affected. * Christophe works on his papers. He has found a little bug in its simulation. Christophe is hoping to join Constantino Listowski's team at CEA (confirmation in one month). Would start on april 1st or may 1st. * Lucas : - Work on the Planetary Evolution Model with Romain - Work on water ice on slopes ("Debugging") * Jiandong : - Tunes the Non-Oro Gravity Wave model to match temperatures. Progresses are made * Antony - Dynamico : We should meet and work on validation projects and science projects with Dynamico => discussion this afternoon : let's wait for the Mars GCM version 6 * Francois - Finishing the Insight paper as always. - Will advertise two post-doc positions for the Mars Through Time Project }}} '''20^th^ January 2022''' {{{ Duration: 1h10mn Participants: Jiandong, Lucas, Siteng, Romain, Christophe, Ehouarn, Margaux, Antoine, Thomas Aymeric, Sandrine News: - Be ready to contribute in the coming weeks to the "Atmosphere planétaires" project application to obtain HPC computing hours for 01/05/2022-30/04/2023 (Occigen will shut down and we'll move to Irene-Rome) Recent commits: https://trac.lmd.jussieu.fr/Planeto/log ============== - r2605-2617: OpenMP directives and code adaptation to run with OpenMP enabled Recent tickets: https://trac.lmd.jussieu.fr/Planeto/report/1 ============== - None - ticket about 32um emissivity; Christophe will add more information - also the ticket about initracer to add some information in Hot topics: ========== * OpenMP:(Romain) - OpenMP, tests on LMD computers OK; some issues still on Occigen Will make a presentation on using/coding with OpenMP next week * Improving the water cycles (Antoine) - water non-conservation issue: tests between beginning/end of physics show that global planet-wide value changes within the dynamics. to check: is the total mass of atmosphere conserved from 1 phys step to the next? * Non-orographic GW with the thermosphere setup (Jiandong) - Has found more tuning parameters to play with which "solve" the polar warming and can affect the phase of the thermal tides (by hanging where momentum is deposited) Jiandong: - looking also at the orographic GW code (to check connections with non-oro GW). Cleaning/Upgrading the code to F90 and documenting it! Ehouarn: - made new "clim", "cold", "warm" dust scenarios using the latest MY24-MY35 krieged dust maps there are some not that minor differences with respect to the old (MCD5.*) ones; not that straightforward to quantify as "old" dust scenarios are on 72x36 grids, whereas new ones are on 120x60. It will probably make sense to have both "old" and "new" cold/clim/warm scenarios in the GCM. Margaux: - submitted the HDO paper this morning Lucas: - submitted his paper on Insight pressure - working with Romain on the PEM. Tests at low obliquity with atmopheric collapse (which is not as fast as expected); comparing with E. Dupont's internship results with nogcm - tests with subslopes look good; implementing water ice in preparation Siteng: - update on observations (TIRVIM) and comparisons with v5.3 GCM - difference of phase between obs and model of ~1h (lag of the GCM wrt obs) Thomas: - slope winds model in MCD6 : comparisons with the mesoscale model from which a GCM-like mean field has been subtracted; has devised a more general minimizing scheme to evaluate best fit parameters. Will use it on comparisons with data at mesoscale levels from near-surface to ~2km. }}} '''13^th^ January 2022''' {{{ Duration: 1h Participants: Margaux, Ehouarn, Jiandong, Christophe, Romain, Thomas, Antoine, Sandrine, Antony, Lucas Francois, Siteng News: - Deadline for GENCI application 14 Feb. - Mike Smith and Mike Wolff will come to LMD 21-25th February, - Mike Wolff will also stay at LMD in April and June. - Open question to all: would you prefer to have the POULDP Mars meetings start at noon or 11am? Recent commits: https://trac.lmd.jussieu.fr/Planeto/log ============== - r2604: Stop with a clear error message if "traceur.def" file is missing Recent tickets: https://trac.lmd.jussieu.fr/Planeto/report/1 ============== - CLOSED: Tickets which could have been closed earlier because issue was solved #3, #4, #12, #13, #20, #21, #40, #59, #73, #74 Hot topics: ========== * Water conservation (Antoine, Joseph) - investigated the water conservation over 10 year; still a small conservation issue ~2%/year compared with Joseph's simulations => same results : ~2% loss / year regardless of GCM53 or GCM6 dust parametrizations also has the problem with 54 layers - will check if the problem indeed comes from the dynamics and add a fix * OpenMP:(Romain) - maybe there is no MPI problem... - will integrate the OpenMP changes step by step. * Non-orographic GW with the thermosphere setup (Jiandong) - investigating the ranges of impact of the parametrization: never gets the same phase of the thermal tide as MCS. Notes that polar regions differ between GCM and MCS. => insufficient polar warming in the GCM * Improving the dust cycle (Antoine) - To be continued... Ehouarn: - testing Irene-Rome with "references setups" to check how much slower/faster it is than Occigen to be confirmed, but it seems a little faster (a big surprise to me as I've been told that LMDZ6, the Earth GCM is slower when run on Irene-Rome...) - will make new "clim"/"cold"/"warm" scenarios using MY24-MY35 dust scenarios ASAP Sandrine: - resuming work on paper on thermal tides from TIRVIM data. interested in checking out the results with the new non-oro GW once it is tuned. Siteng: - Update on temperature differences between TIRVIM & GCM with time of day }}} '''6^th^ January 2022''' {{{ Duration: 1h15mn Participants: Tanguy, Margaux, Siteng, Aymeric, Antoine, Christophe, Ehouarn, Francois, Romain, Thomas Jiandong, Lucas News: - Next week we will hold the POULDP Mars meeting earlier and start at 11am (targeting to end at noon because Francois, Ehouarn, Aymeric won't be available after). Recent commits:https://trac.lmd.jussieu.fr/Planeto/log ============== - r2596: missing OpenMP THREADPRIVATE for Non-orographic GW scheme - r2598: updated arch files for the Jean-Zay supercomputer - r2599-2602: clean up of co2condens_mod and bug fix in physiq for the scavenging by CO2 ice (when without CO2 ice clouds) Recent tickets: https://trac.lmd.jussieu.fr/Planeto/report/1 ============== -TODO: clean up the tickets (some are old and obsolete but not closed) Ehouarn, Antoine and whoever else wants to join, will start this afternoon at the Bocal. Hot topics: ========== * Water conservation (Antoine, Joseph) - 10 year long runs with scavenging bug fixed have been made. No apparent (big) conservation problem. Further analysis required to better tune the water cycle compared to TES * Improving the dust cycle (Antoine) - To be continued... * OpenMP:(Romain) - all seems ok now. To be commited. will present an overview to all at a future Pouldp * Non-orographic GW with the thermosphere setup (Jiandong) - tests with MY29 yearly runs with various parameters, some fails because of huge winds ~700m/s at topmost layers, which can also happen without the GW parametrization. - comparisons with MCS temperature are ongoing Thomas: - found a bug in the MCD (VCD also) in the variability (RMS) of the density in the topmost layer, has a correction to implement. - MCD web interface for full version requests ready. New web interface as well. All ready to be put online in parallel to the current one for tests from the team. - slope winds: extracting "slope winds" from mesocale simulations by substracting large scale GCM-component. Margaux: - working on the HDO articles which will soon be submitted Lucas: - working on the comments by co-authors to his paper; will submit next week. - still working on implementing the sub-slopes Siteng: - looks at the thermal response variations with dust content (simple homogeneous same dust everywhere case), varying dust top altitude and tau. }}}