{
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"metadata": {
"colab": {
"name": "tremblements.ipynb",
"version": "0.3.2",
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"include_colab_link": true
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"kernelspec": {
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"cells": [
{
"cell_type": "markdown",
"metadata": {
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"source": [
"![\"Open](\"https://colab.research.google.com/assets/colab-badge.svg\")
"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "j0z_e3ELTzPd",
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"source": [
"# Affichage sur une carte des données de tremblements de Terre \n",
"\n",
"Les données sont obtenues en temps réel sur :\n",
"\n",
"*https://earthquake.usgs.gov/earthquakes/feed/v1.0/csv.php*\n",
"\n",
"données fournies par l'US Geological Survey...\n"
]
},
{
"cell_type": "code",
"metadata": {
"id": "k3Ey7fiFkx3L",
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"colab": {}
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"source": [
""
],
"execution_count": 0,
"outputs": []
},
{
"cell_type": "markdown",
"metadata": {
"id": "H4rFRt2_VCMN",
"colab_type": "text"
},
"source": [
"**1. On commence par importer les bibliothéques**\n",
"* folium permet de générer les cartes et de placer les marqueurs\n",
"* csv permet de traiter les données obtenues dans un fichier csv\n",
"* request permet de télécharger les données depuis le site de l'USGS\n"
]
},
{
"cell_type": "code",
"metadata": {
"id": "wIZGxDAITZYh",
"colab_type": "code",
"colab": {}
},
"source": [
"import folium\n",
"import csv\n",
"import requests"
],
"execution_count": 0,
"outputs": []
},
{
"cell_type": "markdown",
"metadata": {
"id": "MUx5o9y2Wsm_",
"colab_type": "text"
},
"source": [
"**2. On importe les données depuis le site USGS**\n",
"\n",
"Le site mets à disposition plusieur type de fichiers -> dernière heure, dernier jour, derniers 7 jours etc ....\n",
"voir (https://earthquake.usgs.gov/earthquakes/feed/v1.0/csv.php)\n",
"\n",
"Le choix est fait ici de visualiser les séismes d'une magnitude supérieure à 2,5, le mois dernier.\n",
"\n",
"Le fichier CSV est stockée dans la variable tremblement_csv sous forme de liste\n"
]
},
{
"cell_type": "code",
"metadata": {
"id": "y_owoFC5WXL6",
"colab_type": "code",
"colab": {}
},
"source": [
"# Importation des données au format CSV\n",
"url=\"http://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/4.5_month.csv\"\n",
"csvfile = requests.get(url)\n",
"csvfile = csvfile.content.decode('utf-8')\n"
],
"execution_count": 0,
"outputs": []
},
{
"cell_type": "code",
"metadata": {
"id": "YARcFYBclAkF",
"colab_type": "code",
"colab": {}
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"source": [
""
],
"execution_count": 0,
"outputs": []
},
{
"cell_type": "markdown",
"metadata": {
"id": "RXJ_et5CZScU",
"colab_type": "text"
},
"source": [
"**3. Création de la carte vide**\n",
"\n",
"La bibiothèque folium permet de générer une carte vide.... pour l'instant"
]
},
{
"cell_type": "code",
"metadata": {
"id": "lMfKHdVjVyQR",
"colab_type": "code",
"outputId": "54273239-54ee-43c4-9e48-07c04453ddb0",
"colab": {
"base_uri": "https://localhost:8080/",
"height": 1069
}
},
"source": [
"carte_tremblements = folium.Map(location=[0,0], zoom_start=3)\n",
"display(carte_tremblements)"
],
"execution_count": 0,
"outputs": [
{
"output_type": "display_data",
"data": {
"text/html": [
""
],
"text/plain": [
""
]
},
"metadata": {
"tags": []
}
}
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "UBfa6wwuZpF-",
"colab_type": "text"
},
"source": [
"**4. Lecture du fichier csv et positionnement des marqueurs.**\n",
"\n",
"Structure du fichier csv 0 : date , 1: latitude , 2 : Longitude , 3 : profondeur, 4 : Magnitude\n"
]
},
{
"cell_type": "code",
"metadata": {
"id": "wiYnb3yBV35p",
"colab_type": "code",
"outputId": "70f69894-b882-4a53-d04a-fbc49ab158d8",
"colab": {
"base_uri": "https://localhost:8080/",
"height": 193
}
},
"source": [
"carte_tremblements = folium.Map(location=[0,0], zoom_start=3)\n",
"tremblements_csv = csv.reader(csvfile.splitlines(), delimiter=',')\n",
"# pour éviter la ligne d'en têtes.\n",
"header = next(tremblements_csv)\n",
"# On lit maintenant chaque ligne du fichier csv téléchargé\n",
"for ligne in tremblements_csv :\n",
" latitude = float(ligne[1])\n",
" longitude = float(ligne[2])\n",
" folium.Marker([latitude,longitude]).add_to(carte_tremblements)\n",
" \n",
"display(carte_tremblements)"
],
"execution_count": 0,
"outputs": [
{
"output_type": "display_data",
"data": {
"text/html": [
""
],
"text/plain": [
""
]
},
"metadata": {
"tags": []
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}
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "rPe-hveSaxy_",
"colab_type": "text"
},
"source": [
"**5. On affine en affichant la magnitude du seismes**\n",
"\n",
"On ajoute donc un pop-up qui affiche la magnitude, tout simplement"
]
},
{
"cell_type": "code",
"metadata": {
"id": "8Q-G3cUYb8aC",
"colab_type": "code",
"outputId": "d804ee61-5309-4137-cec9-24e8558b46b9",
"colab": {
"base_uri": "https://localhost:8080/",
"height": 677
}
},
"source": [
"carte_tremblements = folium.Map(location=[0,0], zoom_start=3)\n",
"tremblements_csv = csv.reader(csvfile.splitlines(), delimiter=',')\n",
"# pour éviter la ligne d'en têtes.\n",
"header = next(tremblements_csv)\n",
"# On lit maintenant chaque ligne du fichier csv téléchargé\n",
"for ligne in tremblements_csv :\n",
" latitude = float(ligne[1])\n",
" longitude = float(ligne[2])\n",
" magnitude = \"Magnitude : \"+ str(ligne[4])\n",
" folium.Marker([latitude,longitude],popup = magnitude).add_to(carte_tremblements)\n",
" \n",
"display(carte_tremblements)"
],
"execution_count": 0,
"outputs": [
{
"output_type": "display_data",
"data": {
"text/html": [
""
],
"text/plain": [
""
]
},
"metadata": {
"tags": []
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},
{
"cell_type": "markdown",
"metadata": {
"id": "9xkabYOajoX7",
"colab_type": "text"
},
"source": [
"Prolongement possibles : \n",
"\n",
"* on peut demander aux élèves d'afficher avec un marker rouge les seismes dont la magnitude est supérieure à 6.\n",
"* on peut leur demander d'afficher la date dans le popup...\n",
" * et plein d'autres trucs...\n",
"\n",
"\n",
"\n"
]
},
{
"cell_type": "code",
"metadata": {
"id": "a4aaDuZvkZGK",
"colab_type": "code",
"outputId": "9f6b4035-9305-463f-d961-9252469ce274",
"colab": {
"base_uri": "https://localhost:8080/",
"height": 677
}
},
"source": [
"carte_tremblements = folium.Map(location=[0,0], zoom_start=3)\n",
"tremblements_csv = csv.reader(csvfile.splitlines(), delimiter=',')\n",
"# pour éviter la ligne d'en têtes.\n",
"header = next(tremblements_csv)\n",
"# On lit maintenant chaque ligne du fichier csv téléchargé\n",
"for ligne in tremblements_csv :\n",
" latitude = float(ligne[1])\n",
" longitude = float(ligne[2])\n",
" magnitude = \"Magnitude : \"+ str(ligne[4])\n",
" if float(ligne[4]) > 5 :\n",
" folium.Marker([latitude,longitude],popup = magnitude,icon = folium.Icon(color='red')).add_to(carte_tremblements)\n",
" elif float(ligne[4]) > 4.7 :\n",
" folium.Marker([latitude,longitude],popup = magnitude,icon = folium.Icon(color='blue')).add_to(carte_tremblements)\n",
" else :\n",
" folium.Marker([latitude,longitude],popup = magnitude,icon = folium.Icon(color='green')).add_to(carte_tremblements)\n",
" \n",
" \n",
"display(carte_tremblements)"
],
"execution_count": 0,
"outputs": [
{
"output_type": "display_data",
"data": {
"text/html": [
""
],
"text/plain": [
""
]
},
"metadata": {
"tags": []
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]
}