2d:null 2e:["$","title",null,{"children":"Leaf Index Anomaly Map | Climate Lab | Observable"}] 33:T4cb,legend = () => { const margin = { top: 20, bottom: 18 }; const width = 300; const height = 16; const svg = d3.create("svg") .attr("width", width) .attr("height", height + margin.top + margin.bottom) .attr("font-family", franklinLight) .style("margin", "0 auto") .style("display", "table") .style("overflow", "visible") .call(gradient); const g = svg.append("g") .attr("transform", `translate(0, ${margin.top})`) g.append("text") .attr("font-size", 18) .attr("dy", -8) .attr("x", width / 2) .attr("font-weight", "bold") .attr("text-anchor", "middle") .html("Arrival of spring leaves"); g.append("rect") .attr("width", width) .attr("height", height) .attr("fill", `url(#${gradient.id()})`); const tick = g.selectAll(".tick") .data([-20, 20]) .join("g") .attr("class", "tick") .attr("transform", (d, i) => `translate(${i ? width : 0})`); tick.append("text") .attr("font-size", 14) .attr("text-anchor", (d, i) => i ? 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To download an updated NetCDF file, visit NPN’s [Geoserver Request Builder Tool](https://www.usanpn.org/geoserver-request-builder), and input the following settings:\n- **Service Type:** WCS\n- **Layer Name:** Spring Indices, Daily Anomaly - Daily Spring Index Leaf Anomaly\n- **Date:** Your choice\n- **Format:** NetCDF","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":1315,"value":"A version of this map appeared in the story “[When will spring come? Or has it already? Look up where you live.](https://www.washingtonpost.com/climate-environment/interactive/2023/spring-early-late-climate-change/)”, published in The Washington Post on March 15, 2023.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":1346,"value":"legend()","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1349,"value":"map()","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1351,"value":"note()","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1359,"value":"toc({ selector: \"h2\", heading: \"Jump to code:\" })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1334,"value":"md`## Graphics`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1184,"value":"$33","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1066,"value":"$34","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1328,"value":"note = () => d3.create(\"div\")\n .style(\"color\", \"#666\")\n .style(\"font-family\", franklinLight)\n .style(\"font-size\", \"14px\")\n .text(\"Data as of March 14\")\n .node()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1081,"value":"viewof clip = Inputs.toggle({ label: \"Clip (might kill your browser):\" })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1139,"value":"md`## Style`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1267,"value":"$35","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1177,"value":"colors = [\"#286b1e\", \"#5e8f22\", \"#92b52f\", \"#c8db4d\", \"#ffffab\", \"#eac2d2\", \"#d095b7\", \"#b06c99\", \"#7d516f\"]","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1161,"value":"interpolator = interpolatePalette(colors)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1032,"value":"scale = d3.scaleDiverging([-20, 0, 20], interpolator)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1159,"value":"interval = 1 / (colors.length - 1)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1181,"value":"offsets = d3.range(0, 100 + interval * 100, interval * 100)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1153,"value":"gradient = gradientLinear()\n .offsets(offsets)\n .colors(colors)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1142,"value":"md`# Geo`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1064,"value":"projection = d3.geoAlbers()\n .fitSize([w, h], usGeoOuter)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1145,"value":"path = d3.geoPath(projection)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1135,"value":"md`## Dimensions`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":999,"value":"w = width","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":992,"value":"h = w * 0.631","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1125,"value":"md`## Data`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":946,"value":"anomaly = FileAttachment(\"leaf_anomaly_2023-03-16.nc\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":244,"value":"nc = anomaly\n .arrayBuffer()\n .then((buffer) => new netcdf(buffer))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":282,"value":"S0 = nc.getDataVariable(\"six_leaf_anomaly\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":516,"value":"S = S0.map((d, i) => (d !== -9999 ? d : null))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":48,"value":"X = nc.getDataVariable(\"lon\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":51,"value":"Y = nc.getDataVariable(\"lat\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":744,"value":"usTopo = FileAttachment(\"ne_50m_admin_1_states_provinces_lakes@1.json\").json()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":969,"value":"usGeoInner = topojson.mesh(usTopo, usTopo.objects.ne_50m_admin_1_states_provinces_lakes, (a, b) => a !== b)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":974,"value":"usGeoOuter = topojson.mesh(usTopo, usTopo.objects.ne_50m_admin_1_states_provinces_lakes, (a, b) => a === b)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1249,"value":"cities = FileAttachment(\"cities.json\").json()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1261,"value":"md`## Utilities`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1264,"value":"function toSlugCase(x) {\n return x.toString().toLowerCase()\n .replace(/\\s+/g, \"-\") // Replace spaces with -\n .replace(/[^\\w\\-]+/g, \"\") // Remove all non-word chars\n .replace(/\\-\\-+/g, \"-\") // Replace multiple - with single -\n .replace(/^-+/, \"\") // Trim - from start of text\n .replace(/-+$/, \"\"); // Trim - from end of text\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1122,"value":"md`## Imports`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1355,"value":"import { toc } from \"@harrystevens/toc\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1279,"value":"import { franklinLight } from \"1dec0e3505bd3624\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1155,"value":"import { gradientLinear } from \"@washpostgraphics/gradient-generators\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1209,"value":"import { interpolatePalette } from \"@harrystevens/roll-your-own-color-palette-interpolator\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":754,"value":"netcdf = import(\"https://cdn.skypack.dev/netcdfjs@2.0.2?min\").then(\n (d) => d.NetCDFReader\n)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W36","stdlib":"1","titling":"auto"}} 32:"$31:body"