add Manning's n calibration and SRC comparison plot scripts

.gitignore

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+# Python
+__pycache__/
+*.py[cod]
+*.pyo
+*.pyd
+.Python
+*.egg-info/
+*.egg
+dist/
+build/
+
+# Virtual environment
+.venv/
+venv/
+env/
+
+# Pytest / coverage
+.pytest_cache/
+.coverage
+htmlcov/
+
+# Data files (large, transferred separately)
+data/*.parquet
+data/*.xlsx
+data/*.csv
+data/*.tif
+data/*.geojson
+
+# Pipeline cache and intermediate outputs
+cache/
+
+# Jupyter
+.ipynb_checkpoints/
+*.ipynb
+
+# OS
+.DS_Store
+Thumbs.db
+
+# IDE
+.vscode/settings.json
+.idea/

scripts/open_parquet.py

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+# impport parquet
+import pyarrow.parquet as pq
+table = pq.read_table(r"C:\Users\Ali\OneDrive - CUNY\Desktop\SI\fimbox_SI26\data\usgs_rating_curves.parquet")
+print(table)