coarse grain cells below 85 degrees south by five additional times

this is because the resolution at the South Pole is high.

runs/icon_merit_global.py

@@ -212,7 +212,6 @@ def parallel_wrapper(grid, params, reader, writer):
 from pycsam.inputs.icon_global_run import params
 
 from dask.distributed import Client
-# from dask.diagnostics import ProgressBar
 # import dask.bag as db
 import dask
 
@@ -242,8 +241,9 @@ def parallel_wrapper(grid, params, reader, writer):
 
     print(n_cells)
 
-    chunk_sz = 50
-    for chunk in range(0, n_cells, chunk_sz):
+    chunk_sz = 100
+    chunk_start = 0
+    for chunk in range(chunk_start, n_cells, chunk_sz):
     # writer object
         sfx = "_" + str(chunk+chunk_sz)
         writer = io.nc_writer(params, sfx)

src/io.py

@@ -463,6 +463,9 @@ def __load_topo(self, cell, fns, dirs, lon_cnt, lat_cnt,  lat_idx_rng, lon_idx_r
 
                 iint = self.merit_cg
 
+                if max(cell.lat) < -85.0:
+                    iint *= 5
+
                 cell.lat = utils.sliding_window_view(
                     np.sort(cell.lat), (iint,), (iint,)
                 ).mean(axis=-1)
@@ -777,6 +780,7 @@ def __init__(self, params, sfx=""):
         if self.fn[-3:] != ".nc":
             self.fn += '.nc'
 
+        self.fn = 'datasets/' + self.fn
         self.path = params.path_output
         self.rect_set = params.rect_set
         self.debug = params.debug_writer