2d:null 2e:["$","title",null,{"children":"Bilan carbone 2019 du LSCE | Patrick Brockmann | Observable"}] 33:Td14,chart = { const root = partition(data2); root.each(d => (d.current = d)); const svg = d3 .create("svg") .attr("viewBox", [0, 0, width, width]) .style("font", "14px sans-serif"); const g = svg .append("g") .attr("transform", `translate(${width / 2},${width / 2})`); const path = g .append("g") .selectAll("path") .data(root.descendants().slice(1)) .join("path") .attr("fill", d => { while (d.depth > 1) d = d.parent; return color(d.data.name); }) .attr("fill-opacity", d => arcVisible(d.current) ? (d.children ? 0.6 : 0.4) : 0 ) .attr("d", d => arc(d.current)); path .filter(d => d.children) .style("cursor", "pointer") .on("click", clicked); path.append("title").text(function(d) { return ( `${d .ancestors() .map(d => d.data.name) .reverse() .join("/")}\n${format(d.value)}` + " (tCO2eq)" ); }); const label = g .append("g") .attr("pointer-events", "none") .attr("text-anchor", "middle") .style("user-select", "none") .selectAll("text") .data(root.descendants().slice(1)) .join("text") .attr("dy", "8px") .attr("fill-opacity", d => +labelVisible(d.current)) .attr("transform", d => labelTransform(d.current)) .text(d => d.data.name); const parent = g .append("circle") .datum(root) .attr("r", radius) .attr("fill", "none") .attr("pointer-events", "all") .on("click", clicked); function clicked(event, p) { parent.datum(p.parent || root); root.each( d => (d.target = { x0: Math.max(0, Math.min(1, (d.x0 - p.x0) / (p.x1 - p.x0))) * 2 * Math.PI, x1: Math.max(0, Math.min(1, (d.x1 - p.x0) / (p.x1 - p.x0))) * 2 * Math.PI, y0: Math.max(0, d.y0 - p.depth), y1: Math.max(0, d.y1 - p.depth) }) ); const t = g.transition().duration(750); // Transition the data on all arcs, even the ones that aren’t visible, // so that if this transition is interrupted, entering arcs will start // the next transition from the desired position. path .transition(t) .tween("data", d => { const i = d3.interpolate(d.current, d.target); return t => (d.current = i(t)); }) .filter(function(d) { return +this.getAttribute("fill-opacity") || arcVisible(d.target); }) .attr("fill-opacity", d => arcVisible(d.target) ? (d.children ? 0.6 : 0.4) : 0 ) .attrTween("d", d => () => arc(d.current)); label .filter(function(d) { return +this.getAttribute("fill-opacity") || labelVisible(d.target); }) .transition(t) .attr("fill-opacity", d => +labelVisible(d.target)) .attrTween("transform", d => () => labelTransform(d.current)); } function arcVisible(d) { return d.y1 <= 3 && d.y0 >= 1 && d.x1 > d.x0; } function labelVisible(d) { return d.y1 <= 3 && d.y0 >= 1 && (d.y1 - d.y0) * (d.x1 - d.x0) > 0.03; } function labelTransform(d) { const x = (((d.x0 + d.x1) / 2) * 180) / Math.PI; const y = ((d.y0 + d.y1) / 2) * radius; return `rotate(${x - 90}) translate(${y},0) rotate(${x < 180 ? 0 : 180})`; } return svg.node(); }34:T6bf,md`### Chiffres clés Les émissions de gaz à effet de serre liées aux activités du LSCE s’élèvent au total à **3930 tCO2eq sur l’année 2019**. Cela correspond approximativement aux émissions de GES engendrées par **3930 trajets aller-retour entre Paris et Moscou en avion**. L’incertitude relative associée à ce total est de ± 15%. En ce qui concerne le **laboratoire entier** : - Les ** Produits et services ** (achats, alimentation) représentent environ **1/3 de l’impact total** du laboratoire. - Les **Déplacements de personnes ** (déplacements professionnels, domicile-travail, visiteurs) viennent en deuxième position avec **1/4 des émissions totales de GES**. - Les 3 catégories **Energie liée à l’usage des bâtiments** (chauffage, électricité, fluides frigorigènes), **Activités scientifiques hors LSCE** (heures de calcul, campagnes) et **Immobilisation** (bâtiments, parkings et voiries, changement d’affectation des sols, équipements scientifiques et véhicules de service) suivent avec environ un **1/8 du bilan carbone total chacune**. - Les **Flux de produits** (transport de marchandises, déchets) complètent le bilan carbone avec seulement **2% des émissions de GES.** En divisant le bilan carbone total par le nombre de personnels du LSCE (345 personnes), on obtient un bilan carbone de **11,4 tCO2eq/personnel en 2019 (activités professionnelles seulement)**. Ce chiffre est à comparer à **l’objectif de 2 tCO2eq/personne/an (vie personnelle + vie professionnelle) de l’Accord de Paris** pour limiter le réchauffement climatique en dessous de 2°C. ________________ `35:[{"id":"e34726e121e1aca6bcdbc61185761f4ecc48433b7663b4780b9b6a517745b86fdd55a340bba5b73934e9d11958acf88db09c4573f5465c570f912cbc93532658","href":"https://static.observableusercontent.com/files/e34726e121e1aca6bcdbc61185761f4ecc48433b7663b4780b9b6a517745b86fdd55a340bba5b73934e9d11958acf88db09c4573f5465c570f912cbc93532658","name":"Bilan_Carbone_LSCE_2019_v06@1.tsv","type":"text/tab-separated-values","lastModified":1622126541274.702,"size":321421}] 31:{"id":"d748e9ac0beecc35","slug":"bilan-carbone-lsce-g1","title":" Bilan carbone 2019 du LSCE ","thumbnail":"5e8119a8c305cbd8d645fd256669ab253a82f5d71e24ad3a2ea70c6bf8d8bb08","access_level":"public","create_time":"$D2021-05-18T20:30:56.853Z","update_time":"$D2021-06-29T11:02:42.904Z","view_time":null,"first_public_time":"$D2021-05-19T14:10:53.975Z","has_unpublished_edits":null,"fork":{"id":"86ddbc29bd33f9d6","slug":"zoomable-sunburst","title":"Zoomable sunburst","owner":{"id":"863951e3ebe4c0ae","login":"d3","name":"D3"}},"stars":2,"starred":false,"owner":{"type":"team","id":"63e96f00663997c7","login":"pbrockmann","name":"Patrick Brockmann","avatar_url":"https://avatars-next.observableusercontent.com/25f3e1483d611e61cc2dc87b5091004972f4ad8dbf4792cd225809597ddb2463","tier":"starter_2024"},"version":751,"publish_version":751,"role":null,"authored":false,"authors":[{"type":"individual","id":"68e18af682792012","login":"pbrockmann","name":"Patrick Brockmann","avatar_url":"https://avatars-next.observableusercontent.com/25f3e1483d611e61cc2dc87b5091004972f4ad8dbf4792cd225809597ddb2463","tier":null}],"members":[{"type":"individual","id":"68e18af682792012","login":"pbrockmann","name":"Patrick Brockmann","avatar_url":"https://avatars-next.observableusercontent.com/25f3e1483d611e61cc2dc87b5091004972f4ad8dbf4792cd225809597ddb2463","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":1,"collection":null,"type":"notebook","body":{"title":" Bilan carbone 2019 du LSCE ","cells":[{"id":720,"value":"md`# Bilan carbone 2019 du LSCE \n______\n## 1) Introduction \n**Lucille Zribi**, chargée de mission empreinte carbone présente au LSCE entre juillet 2020 et juin 2021, et **Patrick Brockmann**, ingénieur en analyse de données et visualisation au LCSE, vous proposent d'explorer le bilan carbone 2019 du LSCE de **façon interractive**.\n\n______\n## 2) Bilan carbone global \n### Graphique \nLe **bilan de gaz à effet de serre** (GES) du LSCE a été découpée selon 5 entités. Le graphique ci-dessous représente, en tonne d'[*équivalent CO2*](https://fr.wikipedia.org/wiki/%C3%89quivalent_CO2) (tCO2eq), la **répartition de cet impact carbone** entre ces 5 entités.\n\n*Attention, le nombre de personnels dans chaque entité est différent ! *`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":719,"value":"md`\n|

Entité

Nom complet

| Nombre de personnels | \n| :--- | :--- | :---: |\n| Thème 1 | Archives et Traceurs | 78 | \n| Thème 2 | Cycles biogéochimiques et Transferts dans l'Environnement | 145 | \n| Thème 3 | Modélisation de leurs variabilités et de leurs interactions | 84 | \n| LMC14 | Laboratoire de Mesure du Carbone 14 | 12 | \n| Equipes supports | Groupe administratif, équipe informatique, équipe HSE, etc. | 26 | `","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":748,"value":"md `**Cochez ou décochez** une ou plusieurs **case(s)** ci-dessous pour observer les émissions de GES des entités qui vous intéréssent.\n\n*Les émissions de GES du 'Laboratoire entier' correspondent bien à la somme des émissions de GES des 5 autres entités. *`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":414,"value":"viewof attribution = Checkbox(\n [\n \"Laboratoire entier\",\n \"Thème 1\",\n \"Thème 2\",\n \"Thème 3\",\n \"LMC14\",\n \"Equipes supports\"\n ],\n {\n label: \"Attributions : \",\n value: [\"Thème 1\", \"Thème 2\", \"Thème 3\", \"LMC14\", \"Equipes supports\"]\n }\n)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":7,"value":"$33","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":746,"value":"md` Pour **naviguer** à votre guise sur le graphique précédent : \n- cliquez sur une catégorie d'émission pour voir se qu'elle contient\n- **cliquez au centre du graphique pour revenir en arrière**\n- passez la souris sur une catégorie d'émission pour voir combien d'[*équivalent CO2*](https://fr.wikipedia.org/wiki/%C3%89quivalent_CO2) (tCO2eq) elle représente`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":745,"value":"$34","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":744,"value":"md`### Code `","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":422,"value":"attribution","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":354,"value":"dataIn = FileAttachment(\"Bilan_Carbone_LSCE_2019_v06@1.tsv\").tsv()","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":373,"value":"dataInFiltered = dataIn.filter(function(currentValue, index, arr) {\n if (attribution.indexOf(currentValue[\"Attribution\"]) != -1) return 1;\n})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":356,"value":"// https://observablehq.com/@d3/d3-group\n// https://observablehq.com/@bayre/unrolling-a-d3-rollup\ndata1 = d3.rollup(\n dataInFiltered,\n v => d3.sum(v, d => d[\"Valeur finale catégorie 3 (tCO2eq)\"]),\n d => d[\"Attribution\"],\n d => d[\"Thème général\"],\n d => d['Catégorie 1'],\n d => d['Catégorie 2'],\n d => d['Catégorie 3']\n)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":529,"value":"data1bis = d3.rollup(\n dataInFiltered,\n v => {\n return {\n v: d3.sum(v, d => d[\"Valeur finale catégorie 3 (tCO2eq)\"]),\n i: d3.sum(v, d => d[\"Incertitude absolue catégorie 3 (tCO2eq)\"])\n };\n },\n d => d[\"Attribution\"],\n d => d[\"Thème général\"],\n d => d['Catégorie 1'],\n d => d['Catégorie 2']\n)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":364,"value":"function nest(rollup) {\n return Array.from(rollup, ([key, value]) =>\n value instanceof Map\n ? { name: key, children: nest(value) }\n : { name: key, value: value.v }\n );\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":366,"value":"//data2 = ({ name: \"Emissions (tCO2eq)\", children: nest(data1) })\ndata2 = ({ children: nest(data1bis) })","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":23,"value":"// https://medium.com/nightingale/making-hierarchy-layouts-with-d3-hierarchy-fdb36d0a9c56\n\npartition = data => {\n const root = d3\n .hierarchy(data)\n .sum(d => d.value)\n .sort((a, b) => b.value - a.value);\n return d3.partition().size([2 * Math.PI, root.height + 1])(root);\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":585,"value":"d3.hierarchy(data2).sum(d => d.value)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":121,"value":"color = d3.scaleOrdinal(\n d3.quantize(d3.interpolateSpectral, data2.children.length + 1)\n)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":39,"value":"format = d3.format(\".3f\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":16,"value":"width = 1200","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":21,"value":"radius = width / 6","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":9,"value":"arc = d3\n .arc()\n .startAngle(d => d.x0)\n .endAngle(d => d.x1)\n .padAngle(d => Math.min((d.x1 - d.x0) / 2, 0.005))\n .padRadius(radius * 1.5)\n .innerRadius(d => d.y0 * radius)\n .outerRadius(d => Math.max(d.y0 * radius, d.y1 * radius - 1))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":6,"value":"d3 = require(\"d3@6\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":416,"value":"import { Select, Range, Toggle, Checkbox, Table } from \"@observablehq/inputs\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W35","stdlib":"1","titling":"auto"}} 32:"$31:body"