D3 Examples - Global Temperature Anomaly

Global Temperature Anomaly

This bar graph shows global mean temperature anomaly since 2001. temperature anomaly is deviation from a base average temperature. the base average temperature for this study is 1951-1980 average global temperatures. The data is obtained from National Aeronautics and Space Administration, Goddard Institute for Space Studies data base .

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body {
      margin:0px;
    }
    .label {
      font-size: 15pt;
      font-family: 'sans-serif';
      alignment-baseline: middle;
      fill: #000f42;
    }
    .number, .subtitle {
      font-size: 14pt;
      font-family: 'sans-serif';
      alignment-baseline: middle;
      fill: #00114c;
    }
    .bar {
      fill: #ff9b05;
    }
  </style>
</head>
​
<body>
  <script>
    const width = 960;
    const height = 900;
    const margin = {
      left: 60,
      right: 200,
      top: 90,
      bottom: 52
    }
    
    const svg = d3.select("body").append("svg")
        .attr("width", width)
        .attr("height", height);
    
    svg.append('text')
        .attr('class', 'label')
        .attr('x', 200)
        .attr('y', 75)
        .text('Global Mean Temperature Anomalies Since 2001 in C');
    
    
    const g = svg.append('g')
      .attr('transform', `translate(${margin.left}, ${margin.top})`)
    
    const data = [
      {
        name: "2001",
        value: 0.53
      },
      {
        name: "2002",
        value: 0.62
      },
      {
        name: "2003",
        value: 0.61
      },
      {
        name: "2004",
        value: 0.63
      },
      {
        name: "2005",
        value: 0.67
      }, 
       {
        name: "2006",
        value: 0.62
      },
       {
        name: "2007",
        value: 0.64
      },
       {
        name: "2008",
        value: 0.52
      },
      {
        name: "2009",
        value: 0.64
      },
       {
        name: "2010",
        value: 0.70
      },
       {
        name: "2011",
        value: 0.58
      },
       {
        name: "2012",
        value: 0.62
      },
      {
        name: "2013",
        value: 0.64
      },
      {
        name: "2014",
        value: 0.73
      },
      {
        name: "2015",
        value: 0.87
      },
      {
        name: "2016",
        value: 1
      },
    ];
    
    const innerWidth = width - margin.left - margin.right;
    const innerHeight = height - margin.top - margin.bottom;
    
    const xValue = d => d.value;
    const yValue = d => d.name;
    
    const xScale = d3.scaleLinear()
      .domain([0, d3.max(data, xValue)])
      .range([0, innerWidth]);
    
    const yScale = d3.scaleBand()
      .domain(data.map(yValue))
      .range([innerHeight, 0])
      .padding(0.272);
    
    const groups = g.selectAll('g').data(data);
    const groupsEnter = groups
      .enter().append('g')
        .attr('transform', d => `translate(0, ${yScale(yValue(d))})`);
    
    groupsEnter
      .append('rect')
        .attr('class', 'bar')
        .attr('width', d => xScale(xValue(d)))
        .attr('height', yScale.bandwidth())
        .attr('fill', 'black');
    
    groupsEnter
      .append('text')
        .attr('class', 'label')
        .attr('x', 15)
        .attr('y', yScale.bandwidth() / 2)
        .text(yValue);
    
    groupsEnter
      .append('text')
        .attr('class', 'number')
        .attr('x', d => xScale(xValue(d)) + 20)
        .attr('y', yScale.bandwidth() / 2)
        .text(d => `${xValue(d)}
(°C)`);
​
  </script>
</body>
​
    