examples/notebooks/netcdf.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "0",
   "metadata": {},
   "source": [
    "<a href=\"https://githubtocolab.com/gee-community/geemap/blob/master/examples/notebooks/netcdf.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open in Colab\"/></a>\n",
    "\n",
    "Uncomment the following line to install [geemap](https://geemap.org) if needed."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "1",
   "metadata": {},
   "outputs": [],
   "source": [
    "# !pip install geemap"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "2",
   "metadata": {},
   "outputs": [],
   "source": [
    "import os\n",
    "import geemap\n",
    "import xarray as xr\n",
    "from ipyleaflet import basemaps\n",
    "from ipyleaflet.velocity import Velocity"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "3",
   "metadata": {},
   "outputs": [],
   "source": [
    "Map = geemap.Map(center=[44.33, -130.60], zoom=3, interpolation=\"nearest\")\n",
    "Map.add_layer(basemaps.CartoDB.DarkMatter)\n",
    "Map"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "4",
   "metadata": {},
   "outputs": [],
   "source": [
    "file_path = os.path.abspath(\"wind_global.nc\")\n",
    "if not os.path.exists(file_path):\n",
    "    url = \"https://github.com/gee-community/geemap/raw/master/examples/data/wind_global.nc\"\n",
    "    geemap.download_file(url)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "5",
   "metadata": {},
   "outputs": [],
   "source": [
    "ds = xr.open_dataset(file_path)\n",
    "ds"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "6",
   "metadata": {},
   "outputs": [],
   "source": [
    "display_options = {\n",
    "    \"velocityType\": \"Global Wind\",\n",
    "    \"displayPosition\": \"bottomleft\",\n",
    "    \"displayEmptyString\": \"No wind data\",\n",
    "}\n",
    "wind = Velocity(\n",
    "    data=ds,\n",
    "    name=\"Velocity\",\n",
    "    zonal_speed=\"u_wind\",\n",
    "    meridional_speed=\"v_wind\",\n",
    "    latitude_dimension=\"lat\",\n",
    "    longitude_dimension=\"lon\",\n",
    "    velocity_scale=0.01,\n",
    "    max_velocity=20,\n",
    "    display_options=display_options,\n",
    ")\n",
    "Map.add_layer(wind)"
   ]
  }
 ],
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   "display_name": "Python 3",
   "language": "python",
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