数据概况
- 时段：1970–2024（年度）
- 指标：全球陆海合成温度距平（单位：°C，基准期：1951–1980）
- 地理范围：全球（陆海合成，0–90°N/S）
- 行数：19（1970–2005为抽样年份；2010–2024为连续年份）
- 字段：year, global_anom, land_only, sea_only, lower_CI, upper_CI, source（均完整，无缺失）
- 数据源：1970–2005为“station+SST”；2010–2024为“blend”
分析结果
- 总增幅（1970→2024，global_anom）：+1.21°C（-0.03→1.18）
- 端点增速（1970–2024）：约+0.224°C/十年
- 分段增速：
- 1970–2000：约+0.150°C/十年（-0.03→0.42）
- 2000–2024：约+0.317°C/十年（0.42→1.18）
- 2010–2024：约+0.371°C/十年（0.66→1.18）
- 陆海差异（端点法，1970→2024）：
- 陆地：+1.56°C（0.18→1.74），约+0.289°C/十年
- 海洋：+0.85°C（0.07→0.92），约+0.157°C/十年
- 比值（陆/海）：≈1.84
- 时段均值（global_anom）：
- 1970–1989（抽样点）：≈0.04°C
- 1990–2005（抽样点）：≈0.45°C
- 2010–2024（连续年）：≈0.95°C
- 最大值：2024（1.18°C）
- 置信区间幅度（示例）：1975≈0.15°C；2024≈0.14°C
可视化图表
- 图1：全球年度温度距平与95%置信区间（含y=0参考线与2010数据源切换标记）
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{"year":2015,"global_anom":0.89,"land_only":1.30,"sea_only":0.66,"lower_CI":0.82,"upper_CI":0.96,"source":"blend"},
{"year":2016,"global_anom":0.99,"land_only":1.45,"sea_only":0.74,"lower_CI":0.92,"upper_CI":1.06,"source":"blend"},
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{"year":2018,"global_anom":0.83,"land_only":1.24,"sea_only":0.62,"lower_CI":0.76,"upper_CI":0.90,"source":"blend"},
{"year":2019,"global_anom":0.95,"land_only":1.39,"sea_only":0.72,"lower_CI":0.88,"upper_CI":1.02,"source":"blend"},
{"year":2020,"global_anom":1.02,"land_only":1.49,"sea_only":0.77,"lower_CI":0.95,"upper_CI":1.09,"source":"blend"},
{"year":2021,"global_anom":0.98,"land_only":1.45,"sea_only":0.74,"lower_CI":0.91,"upper_CI":1.05,"source":"blend"},
{"year":2022,"global_anom":0.95,"land_only":1.42,"sea_only":0.72,"lower_CI":0.88,"upper_CI":1.02,"source":"blend"},
{"year":2023,"global_anom":1.12,"land_only":1.67,"sea_only":0.86,"lower_CI":1.05,"upper_CI":1.19,"source":"blend"},
{"year":2024,"global_anom":1.18,"land_only":1.74,"sea_only":0.92,"lower_CI":1.11,"upper_CI":1.25,"source":"blend"}
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{"year":1985,"land_only":0.20,"sea_only":0.08},
{"year":1990,"land_only":0.49,"sea_only":0.25},
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{"year":2022,"land_only":1.42,"sea_only":0.72},
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{"year":1985,"land_only":0.20,"sea_only":0.08},
{"year":1990,"land_only":0.49,"sea_only":0.25},
{"year":1995,"land_only":0.65,"sea_only":0.31},
{"year":2000,"land_only":0.68,"sea_only":0.29},
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{"year":2022,"land_only":1.42,"sea_only":0.72},
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关键结论
- 1970–2024全球年度距平总体升高约+1.21°C，端点增速约+0.224°C/十年
- 2000年以来增速提升，2010–2024端点增速约+0.371°C/十年
- 陆地升温幅度与速率均高于海洋，端点比值约1.84
- 2024为全序列最高年（1.18°C），近年均值约0.95°C
技术说明
- 数据验证：字段完整性与单位一致性检查；源类型切换标记（2010）
- 统计方法：端点增幅与分段年均增速；陆海差值计算
- 置信区间：按年度提供的lower_CI与upper_CI绘制区间带
- 可视化：Vega-Lite v5；统一线性尺度，包含y=0参考线；颜色区分陆/海
- 参数：宽度640、高度300–360；不使用平滑；基准期1951–1980
