欧亚大陆 - cedarkit-notebook指南

欧亚大陆底图布局 (cedarkit.plots.domains.EuropeAsiaMapTemplate) 绘制欧亚大陆区域图形，使用兰勃特等角圆锥投影 (cartopy.crs.LambertConformal)，中心经度东经 95 度。

准备¶

导入需要的包

import numpy as np
import pandas as pd

from cedarkit.plots.chart import Panel
from cedarkit.plots.domains import EuropeAsiaMapTemplate
from cedarkit.plots.map import set_default_map_loader_package
from cedarkit.plots.colormap import get_ncl_colormap
from cedarkit.plots.style import ContourStyle

start_time = pd.Timestamp.now().normalize() - pd.Timedelta(days=2)
forecast_time = pd.to_timedelta("24h")

设置使用 CEMC 地图包

set_default_map_loader_package("cedarkit.plots.map.cemc")

'cedarkit.plots.map.cemc'

定义绘图样式

prmsl_color_map = get_ncl_colormap(
    "rainbow+white+gray",
    index=np.array([-1, 80, 100, 120, 140, 160, 180, 200, 205])
)
prmsl_contour_lev = np.arange(1000, 1036, 5)
prmsl_style = ContourStyle(
    colors=prmsl_color_map,
    levels=prmsl_contour_lev,
    fill=True,
)

绘制¶

绘制底图布局

domain = EuropeAsiaMapTemplate()
panel = Panel(domain=domain)

domain.set_title(
    panel=panel,
    graph_name="500 hPa HGT (10gpm) line + MSLP (hPa) shadow",
    system_name="CMA-GFS",
    start_time=start_time,
    forecast_time=pd.to_timedelta("24h"),
)
domain.add_colorbar(panel=panel, style=prmsl_style)

panel.show()