68 netcdf to ee

Uncomment the following line to install geemap if needed.

You will also need to install the following package:

• xarray

In [1]:

# !pip install geemap

# !pip install geemap

In [2]:

import os
import ee
import geemap
import geemap.colormaps as cm

import os import ee import geemap import geemap.colormaps as cm

In [3]:

geemap.ee_initialize()

geemap.ee_initialize()

In [4]:

nc_file = '../data/wind-global.nc'

nc_file = '../data/wind-global.nc'

In [5]:

if not os.path.exists(nc_file):
    url = 'https://github.com/giswqs/geemap/blob/master/examples/data/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)

if not os.path.exists(nc_file): url = 'https://github.com/giswqs/geemap/blob/master/examples/data/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 [6]:

# Test with only one variable
img = geemap.netcdf_to_ee(nc_file=nc_file, var_names='u_wind')
palette = cm.palettes.YlOrRd

Map = geemap.Map()
Map.addLayer(img, {'min': -20, 'max': 25, 'palette': palette, 'opacity': 0.6}, "u_wind")
Map

# Test with only one variable img = geemap.netcdf_to_ee(nc_file=nc_file, var_names='u_wind') palette = cm.palettes.YlOrRd Map = geemap.Map() Map.addLayer(img, {'min': -20, 'max': 25, 'palette': palette, 'opacity': 0.6}, "u_wind") Map

found the following matches with the input file in xarray's IO backends: ['netcdf4', 'h5netcdf']. But their dependencies may not be installed, see:
https://docs.xarray.dev/en/stable/user-guide/io.html 
https://docs.xarray.dev/en/stable/getting-started-guide/installing.html

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Input In [6], in <cell line: 6>()
      3 palette = cm.palettes.YlOrRd
      5 Map = geemap.Map()
----> 6 Map.addLayer(img, {'min': -20, 'max': 25, 'palette': palette, 'opacity': 0.6}, "u_wind")
      7 Map

File ~/.local/lib/python3.9/site-packages/geemap/foliumap.py:195, in Map.add_layer(self, ee_object, vis_params, name, shown, opacity, **kwargs)
    187 if (
    188     not isinstance(ee_object, ee.Image)
    189     and not isinstance(ee_object, ee.ImageCollection)
   (...)
    192     and not isinstance(ee_object, ee.Geometry)
    193 ):
    194     err_str = "\n\nThe image argument in 'addLayer' function must be an instance of one of ee.Image, ee.Geometry, ee.Feature or ee.FeatureCollection."
--> 195     raise AttributeError(err_str)
    197 if (
    198     isinstance(ee_object, ee.geometry.Geometry)
    199     or isinstance(ee_object, ee.feature.Feature)
    200     or isinstance(ee_object, ee.featurecollection.FeatureCollection)
    201 ):
    202     features = ee.FeatureCollection(ee_object)

AttributeError: 

The image argument in 'addLayer' function must be an instance of one of ee.Image, ee.Geometry, ee.Feature or ee.FeatureCollection.

In [7]:

# Test with two variables
img2 = geemap.netcdf_to_ee(nc_file=nc_file, var_names=['u_wind', 'v_wind'])
Map2 = geemap.Map()
Map2.addLayer(
    img2,
    {'bands': ['u_wind'], 'min': -20, 'max': 25, 'palette': palette, 'opacity': 0.6},
    "uv_wind",
)
Map2

# Test with two variables img2 = geemap.netcdf_to_ee(nc_file=nc_file, var_names=['u_wind', 'v_wind']) Map2 = geemap.Map() Map2.addLayer( img2, {'bands': ['u_wind'], 'min': -20, 'max': 25, 'palette': palette, 'opacity': 0.6}, "uv_wind", ) Map2

found the following matches with the input file in xarray's IO backends: ['netcdf4', 'h5netcdf']. But their dependencies may not be installed, see:
https://docs.xarray.dev/en/stable/user-guide/io.html 
https://docs.xarray.dev/en/stable/getting-started-guide/installing.html

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Input In [7], in <cell line: 4>()
      2 img2 = geemap.netcdf_to_ee(nc_file=nc_file, var_names=['u_wind', 'v_wind'])
      3 Map2 = geemap.Map()
----> 4 Map2.addLayer(
      5     img2,
      6     {'bands': ['u_wind'], 'min': -20, 'max': 25, 'palette': palette, 'opacity': 0.6},
      7     "uv_wind",
      8 )
      9 Map2

File ~/.local/lib/python3.9/site-packages/geemap/foliumap.py:195, in Map.add_layer(self, ee_object, vis_params, name, shown, opacity, **kwargs)
    187 if (
    188     not isinstance(ee_object, ee.Image)
    189     and not isinstance(ee_object, ee.ImageCollection)
   (...)
    192     and not isinstance(ee_object, ee.Geometry)
    193 ):
    194     err_str = "\n\nThe image argument in 'addLayer' function must be an instance of one of ee.Image, ee.Geometry, ee.Feature or ee.FeatureCollection."
--> 195     raise AttributeError(err_str)
    197 if (
    198     isinstance(ee_object, ee.geometry.Geometry)
    199     or isinstance(ee_object, ee.feature.Feature)
    200     or isinstance(ee_object, ee.featurecollection.FeatureCollection)
    201 ):
    202     features = ee.FeatureCollection(ee_object)

AttributeError: 

The image argument in 'addLayer' function must be an instance of one of ee.Image, ee.Geometry, ee.Feature or ee.FeatureCollection.

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Last update: 2022-03-14