{
  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "\n# Compare\n\nComparing two oil drift simulation runs, with and without wind\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "from datetime import timedelta\nfrom opendrift.readers import reader_netCDF_CF_generic\nfrom opendrift.models.openoil import OpenOil\n\no = OpenOil(loglevel=20)  # Set loglevel to 0 for debug information\n\n# Arome atmospheric model\nreader_arome = reader_netCDF_CF_generic.Reader(o.test_data_folder() +\n    '16Nov2015_NorKyst_z_surface/arome_subset_16Nov2015.nc')\n# Norkyst ocean model\nreader_norkyst = reader_netCDF_CF_generic.Reader(o.test_data_folder() +\n    '16Nov2015_NorKyst_z_surface/norkyst800_subset_16Nov2015.nc')\n\no.add_reader([reader_norkyst, reader_arome])\n\n# Seeding some particles\nlon = 4.5; lat = 60.0; # Outside Bergen\ntime = [reader_arome.start_time,\n        reader_arome.start_time + timedelta(hours=30)]\no.seed_elements(lon, lat, radius=50, number=5000, time=time,\n                oil_type='GENERIC HEAVY CRUDE',\n                wind_drift_factor=0.03) # 3% wind drift\n\n# Running model\no.run(steps=66, time_step=1800, time_step_output=3600)\n\n# Second run, for comparison\no2 = OpenOil(loglevel=20)  # Set loglevel to 0 for debug information\no2.add_reader([reader_norkyst, reader_arome])\no2.seed_elements(lon, lat, radius=50, number=5000, time=time,\n                 oil_type='GENERIC HEAVY CRUDE',\n                 wind_drift_factor=0.0) # No wind drift\no2.run(steps=66, time_step=1800, time_step_output=3600)"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "Animate and compare the two runs.\nWe see that there is much more stranding of oil when wind is considered.\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "o.animation(fast=True, compare=o2,\n            legend=['Current + 3 % wind drift', 'Current only'])"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "<img src=\"file://gallery/animations/example_compare_0.gif\">\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "o.plot(fast=True, compare=o2,\n       legend=['Current + 3 % wind drift', 'Current only'])"
      ]
    }
  ],
  "metadata": {
    "kernelspec": {
      "display_name": "Python 3",
      "language": "python",
      "name": "python3"
    },
    "language_info": {
      "codemirror_mode": {
        "name": "ipython",
        "version": 3
      },
      "file_extension": ".py",
      "mimetype": "text/x-python",
      "name": "python",
      "nbconvert_exporter": "python",
      "pygments_lexer": "ipython3",
      "version": "3.11.6"
    }
  },
  "nbformat": 4,
  "nbformat_minor": 0
}