Make era5 and alphaearth downloads work

cds.py

@@ -3,6 +3,7 @@
 Web platform: https://cds.climate.copernicus.eu
 """
 
+import os
 import re
 from pathlib import Path
 
@@ -13,6 +14,8 @@ from rich import pretty, print, traceback
 traceback.install()
 pretty.install()
 
+DATA_DIR = Path(os.environ.get("DATA_DIR", "data")) / "entropyc-rts"
+
 
 def hourly(years: str):
     """Download ERA5 data from the Copernicus Data Store.
@@ -28,7 +31,7 @@ def hourly(years: str):
     dataset = "reanalysis-era5-single-levels"
     client = cdsapi.Client(wait_until_complete=False)
 
-    outdir = Path("/isipd/projects/p_aicore_pf/tohoel001/era5-cds").resolve()
+    outdir = (DATA_DIR / "era5/cds").resolve()
     outdir.mkdir(parents=True, exist_ok=True)
 
     print(f"Downloading ERA5 data from {start_year} to {end_year}...")