Velocity

You will need to install the following packages:

• ipyleaflet
• requests
• xarray
• netcdf4
• geemap

In [ ]:

from ipyleaflet import TileLayer, basemaps
from ipyleaflet.velocity import Velocity
import xarray as xr
import geemap

from ipyleaflet import TileLayer, basemaps from ipyleaflet.velocity import Velocity import xarray as xr import geemap

In [ ]:

center = [44.33956524809713, -130.60546875000003]
zoom = 3
m = geemap.Map(center=center, zoom=zoom, interpolation='nearest', basemap=basemaps.CartoDB.DarkMatter, add_google_map=False, ee_initialize=False)
m

center = [44.33956524809713, -130.60546875000003] zoom = 3 m = geemap.Map(center=center, zoom=zoom, interpolation='nearest', basemap=basemaps.CartoDB.DarkMatter, add_google_map=False, ee_initialize=False) m

In [ ]:

import os

if not os.path.exists('wind-global.nc'):
    url = 'https://github.com/benbovy/xvelmap/raw/master/notebooks/wind-global.nc'
    import requests
    r = requests.get(url)
    wind_data = r.content
    with open('wind-global.nc', 'wb') as f:
        f.write(wind_data)

import os if not os.path.exists('wind-global.nc'): url = 'https://github.com/benbovy/xvelmap/raw/master/notebooks/wind-global.nc' import requests r = requests.get(url) wind_data = r.content with open('wind-global.nc', 'wb') as f: f.write(wind_data)

In [ ]:

ds = xr.open_dataset('wind-global.nc')
ds

ds = xr.open_dataset('wind-global.nc') ds

In [ ]:

display_options = {
    'velocityType': 'Global Wind',
    'displayPosition': 'bottomleft',
    'displayEmptyString': 'No wind data'
}
wind = Velocity(
    data=ds, 
    zonal_speed='u_wind', meridional_speed='v_wind', 
    latitude_dimension='lat', longitude_dimension='lon', 
    velocity_scale=0.01, max_velocity=20, 
    display_options=display_options
)
m.add_layer(wind)

display_options = { 'velocityType': 'Global Wind', 'displayPosition': 'bottomleft', 'displayEmptyString': 'No wind data' } wind = Velocity( data=ds, zonal_speed='u_wind', meridional_speed='v_wind', latitude_dimension='lat', longitude_dimension='lon', velocity_scale=0.01, max_velocity=20, display_options=display_options ) m.add_layer(wind)

In [ ]:

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Last update: 2021-10-26