CMA-GEPS - CEMC Data Guide

CMA-GEPS 基础 GRIB2 数据文件有 130 个要素场。

本页文件为集合预报成员 1（文件名后缀 -m001.grib2）；所有要素均为集合扰动预报（pf）。

import pandas as pd

from data_notebook.data import get_data_file

geps_grib2_orig_file_path = get_data_file("cma-geps")
geps_grib2_orig_file_path

PosixPath('/home/wangdp/project/cedarkit/notebook-project/notebook-devel/repo/data-notebook-project/data-notebook/data/cma-geps/grib2/orig/Z_NAFP_C_BABJ_20260811000000_P_NWPC-GRAPES-GEPS-GLB-02400-m001.grib2')

要素列表¶

使用 reki 识别全部 GRIB2 消息头中的要素，并结合内置要素注册表生成要素列表。

下表将相邻的同要素不同层次条目合并为一行：序号显示合并范围（如 64-100），层次列出全部层次。

from IPython.display import display
from data_notebook import get_grib2_inventory, merge_inventory_levels

inventory = get_grib2_inventory(geps_grib2_orig_file_path)
cma_geps_merged_inventory = merge_inventory_levels(inventory)
with pd.option_context("display.max_rows", None):
    display(cma_geps_merged_inventory.style.hide(axis="index"))

/home/wangdp/project/cedarkit/notebook-project/notebook-devel/repo/data-notebook-project/data-notebook/.venv/lib/python3.14/site-packages/gribapi/__init__.py:23: UserWarning: ecCodes 2.42.0 or higher is recommended. You are running version 2.34.1
  warnings.warn(