太平洋海温的异常信号
2026年初春以来，赤道太平洋中东部海域的海表温度持续走高。美国国家海洋和大气管理局（NOAA）的监测数据显示，尼诺3.4区海温距平已从年初的+0.5°C攀升至6月初的+1.8°C，且上升趋势仍在加速。按照WMO的标准，当尼诺3.4指数连续三个月超过+1.5°C时，即认定为强厄尔尼诺事件；超过+2.0°C则为超级厄尔尼诺。
更令人担忧的是，次表层暖水异常信号极为强烈。热带太平洋100-300米深处的暖水层厚度是正常年份的两倍以上，这意味着即使表层风场出现短期波动，深海储存的巨大热量仍将持续向表层输送，为厄尔尼诺的进一步发展提供充足的"弹药"。NOAA在6月初发布的最新预测报告中，已将超级厄尔尼诺的预测概率上调至65%。
超级厄尔尼诺的历史教训
历史上仅有两次有明确记录的超级厄尔尼诺事件：1997-1998年和2015-2016年。1997-1998年超级厄尔尼诺造成全球约2.3万人死亡，经济损失超过340亿美元。印度尼西亚和澳大利亚经历了毁灭性的干旱和森林大火，南美洲西海岸则遭受暴雨和洪水侵袭。2015-2016年的事件虽然造成的人员伤亡较少，但经济损失更为严重，估计超过600亿美元。
如果2026年真的形成超级厄尔尼诺，其影响可能与上述两次事件相当甚至更大。原因在于，全球平均气温在过去的28年间已上升约0.5°C，更高的基础温度意味着厄尔尼诺叠加全球变暖会产生更极端的气候效应。此外，全球人口从1997年的59亿增至2026年的82亿，更多人口暴露在气候风险之中。
全球农业面临严峻考验
农业生产是受厄尔尼诺影响最直接的领域。历史数据表明，超级厄尔尼诺年份全球粮食产量平均下降3-5%，部分受灾区域减产幅度可达20-30%。东南亚和澳大利亚的棕榈油、甘蔗种植将面临干旱威胁；南亚季风可能减弱，影响印度和巴基斯坦的小麦和稻米生产；南美洲的洪水则会破坏巴西和阿根廷的大豆和玉米作物。
粮食市场已经提前作出反应。芝加哥期货交易所的小麦和玉米期货价格在6月初分别上涨了12%和9%，创年内新高。联合国粮农组织（FAO）警告称，如果超级厄尔尼诺在下半年成型，2027年初全球可能面临新一轮粮食价格上涨压力，尤其影响非洲和中东等粮食进口依赖度较高的地区。
能源市场与极端天气的连锁反应
厄尔尼诺对能源市场的影响同样不容小觑。在亚洲，厄尔尼诺通常导致东南亚干旱、水电出力下降，推高天然气和煤炭需求。2015-2016年超级厄尔尼诺期间，东南亚液化天然气进口量增加了18%。在北美，厄尔尼诺冬季通常带来温暖天气，降低取暖需求但可能增加空调使用，总体对能源消费的影响较为复杂。
可再生能源也受到显著影响。干旱导致水电出力不足的同时，晴热天气可能增加光伏发电量。但极端高温也会降低太阳能电池板的转换效率。风能方面，厄尔尼诺通常改变全球风力分布格局，部分风电场的发电量可能出现20-30%的波动。综合来看，能源企业需要提前做好多元化能源供应的应急预案。
科学监测与应对准备
面对可能到来的超级厄尔尼诺，全球气候监测网络已进入高度戒备状态。WMO协调下的全球观测系统（GOS）利用70多颗卫星、3000多个浮标和数百艘观测船对热带太平洋进行全天候监控。中国气象局也加大了对太平洋海域的监测力度，"风云"系列气象卫星每天提供8次全球海温观测数据。
各国政府已开始启动应对预案。印度政府修订了季风农业计划，增加了抗旱作物品种的推广力度。澳大利亚联邦政府拨款5亿澳元用于干旱救济。东南亚国家联盟（ASEAN）召开紧急部长级会议，讨论区域粮食安全合作机制。中国应急管理部已将2026年下半年定为"防汛抗旱重点时段"，要求各地提前做好物资储备和应急预案。科学界强调，虽然超级厄尔尼诺的可能性很高，但其确切时间和强度仍存在不确定性，过度恐慌无助于应对，关键在于做好充分准备。
Anomalous Signals in the Pacific
Since early spring 2026, sea surface temperatures in the central-eastern equatorial Pacific have been steadily rising. NOAA monitoring data shows the Nino 3.4 region's sea temperature anomaly has climbed from +0.5°C at the beginning of the year to +1.8°C in early June, with the upward trend still accelerating. By WMO standards, when the Nino 3.4 index exceeds +1.5°C for three consecutive months, it is classified as a strong El Nino; exceeding +2.0°C constitutes a super El Nino.
More concerning is the extremely strong subsurface warm water signal. The warm water layer at 100-300 meters depth in the tropical Pacific is more than twice the thickness of normal years, meaning that even if surface wind patterns show short-term fluctuations, the enormous heat stored in the deep ocean will continue feeding the surface, providing ample 'ammunition' for further El Nino development. NOAA's latest forecast issued in early June has raised the super El Nino probability to 65%.
Historical Lessons from Super El Ninos
There have been only two well-documented super El Nino events in history: 1997-1998 and 2015-2016. The 1997-1998 super El Nino caused approximately 23,000 deaths globally and over $34 billion in economic losses. Indonesia and Australia experienced devastating droughts and wildfires, while South America's west coast was hit by torrential rains and flooding. The 2015-2016 event caused fewer casualties but more severe economic damage, estimated at over $60 billion.
If a super El Nino does form in 2026, its impact could be comparable to or even greater than these two events. The reason is that global average temperatures have risen approximately 0.5°C over the past 28 years; higher baseline temperatures mean El Nino combined with global warming will produce more extreme climate effects. Additionally, the global population has grown from 5.9 billion in 1997 to 8.2 billion in 2026, exposing more people to climate risks.
Severe Tests for Global Agriculture
Agricultural production is the most directly affected sector. Historical data shows that during super El Nino years, global grain production averages a 3-5% decline, with some affected areas seeing reductions of 20-30%. Southeast Asian and Australian palm oil and sugarcane cultivation will face drought threats; the South Asian monsoon may weaken, affecting wheat and rice production in India and Pakistan; flooding in South America will damage soybean and corn crops in Brazil and Argentina.
Grain markets have already reacted preemptively. Chicago Board of Trade wheat and corn futures rose 12% and 9% respectively in early June, reaching yearly highs. The UN FAO warns that if a super El Nino forms in the second half of the year, the world may face a new round of grain price inflation in early 2027, particularly impacting regions with high food import dependency like Africa and the Middle East.
Energy Markets and Extreme Weather Chain Reactions
El Nino's impact on energy markets is equally significant. In Asia, El Nino typically causes drought in Southeast Asia, reducing hydropower output and driving up natural gas and coal demand. During the 2015-2016 super El Nino, Southeast Asian LNG imports increased 18%. In North America, El Nino winters usually bring warmer weather, reducing heating demand but potentially increasing air conditioning use, with overall energy consumption effects being complex.
Renewable energy is also significantly affected. While drought reduces hydropower output, clear hot weather may increase photovoltaic generation. However, extreme heat also reduces solar panel conversion efficiency. For wind energy, El Nino typically alters global wind distribution patterns, with some wind farms seeing 20-30% fluctuations in output. On balance, energy companies need to prepare diversified energy supply contingency plans in advance.
Scientific Monitoring and Preparedness
Facing the possible super El Nino, the global climate monitoring network has entered high alert. The WMO-coordinated Global Observing System uses over 70 satellites, more than 3,000 buoys, and hundreds of observation vessels for round-the-clock monitoring of the tropical Pacific. China's Meteorological Administration has also intensified Pacific monitoring, with Fengyun weather satellites providing eight daily global sea temperature observations.
Governments worldwide have begun activating contingency plans. India's government has revised its monsoon agricultural plan, increasing promotion of drought-resistant crop varieties. The Australian federal government has allocated A$500 million for drought relief. ASEAN convened an emergency ministerial meeting to discuss regional food security cooperation mechanisms. China's Ministry of Emergency Management has designated the second half of 2026 as a 'flood and drought prevention priority period,' requiring advance material reserves and emergency plans. Scientists emphasize that while the super El Nino probability is high, exact timing and intensity remain uncertain—panic is counterproductive, and the key lies in thorough preparation.
