Changes between Version 76 and Version 77 of Pirates2022/Tuning2023

Timestamp:

11/10/23 14:20:10 (8 months ago)

Author:

jdlod

Comment:

--

Pirates2022/Tuning2023

@@ +1 @@
+=== 8 novembre 2023 ===
+GGac, GGas, Juliette, Brady, Julie
+
+1. on the topic glob.rt [Ggas]
+
+    slope between SST and glob.rt different in VLR whether we use glob.rt from AMIP LR vs VLR -> implies to redo preconditioning AMIP in VLR
+(edited)
+
+    warning : conclusion drawn on only 5 points yet
+
+   [1.a] but crash test of preconditioning as done this summer not so wrong for VLR -> implies that it is the preconditioning AMIP in LR that should be redone ! -> first we need more members AMIP VLR to make this point solid
+
+2. stratosphere vs troposphere metrics (what should be added to preconditioning ?)
+
+   [2.a] LR AMIP vs CMIP pretty well aligned for some metrics (150hPa, mid lat) -> encouragning
+
+   [2.b] LR AMIP vs VLR CMIP not so well aligned for those metrics -> needs to confirm with more VLR AMIP ? (edited) 
+
+   [2.c] 150hPa or 200hPa ? seem to have different impacts on sea ice in arctic, depending on LR or VLR
+  
+   [2.d] adding stratosphere metrics, what for ? need a synthesis of climate variables affected by stratosphere metrics - and make sure that including troposphere metrics directly would not make a better job
+
+   [2.e] contact Francois Lott to imagine other metrics describing stratosphere ?
+
+3. overall tuning of VLR and LR
+
+   [3.a] southern ocean warm bias systematic in VLR, much larger than in LR
+
+   [3.b] stratosphere warm bias more dramatic in VLR than in LR (cf progress from Myriam in reducing stratosphere bias via change in vertical levels ?) 
+
+4. sea ice
+
+   [4.a] adding atmospheric metrics in preconditioning could help increasing sea ice - can we prove that ?
+
+   [4.b] very different behavior in VLR vs LR in southern hemisphere - because not enough ice in VLR (cf strong warm bias in t2m) ? 
+
+   [4.c] which metrics / parameters  have the most impact on sea ice - north and south ?
+
+5. upper ocean variables (the blue ones…)
+
+   [5.a] southern ocean warm bias, already mentioned in 4.b and
+
+   [5.b] what else ?
+
+   [5.c] does the 60yr long simulations provide a different picture from the 20yr long ones ?
+
+   [5.d] can we say something interesting about the 5 LR1 simulations ? (edited) 
+
+6. atmospheric variables : can we identify where there is an added value in running in CMIP rather than AMIP, when tuning the atmosphere parameters ?
+
 === 12 octobre 2023 ===
 GGac, Juliette, Brady, Julie