The New York metropolitan area was showing the effects of a prolonged cold spell in late January 2026. During a stretch of frigid weather, ice choked the Hudson River along Manhattan’s western shore.
2026 年 1 月下旬，纽约大都市区出现了持续寒流的影响。在一段寒冷的天气期间，冰块堵塞了曼哈顿西岸的哈德逊河。
The OLI (Operational Land Imager) on Landsat 8 captured this image of the wintry landscape around midday on January 28. The image is false-color ( bands 5-4-3 ) to distinguish ice (light blue) from open water and snow. Vegetation appears red. Ice is abundant in the Hudson River and visible in smaller amounts in the East River, the Jacqueline Kennedy Onassis Reservoir in Central Park, and waterways in New Jersey.
Landsat 8 上的 OLI（操作陆地成像仪）于 1 月 28 日中午左右拍摄了这张冬季景观的图像。该图像是假色的（波段 5-4-3），以区分冰（浅蓝色）与开阔的水域和雪。植被呈现红色。哈德逊河中有大量冰，东河、中央公园的杰奎琳·肯尼迪·奥纳西斯水库和新泽西州的水道中也有少量冰。
Temperatures in New York City dropped below freezing on January 24 and stayed there for over a week. The high on January 28, the date of the image, was 23 degrees Fahrenheit (minus 5 degrees Celsius). Low temperatures and harsh wind chills gripped much of eastern North America over this period amid a surge of Arctic air .
1月24日，纽约市气温降至冰点以下，并持续了一周多。 1 月 28 日（图像拍摄日期）的最高气温为 23 华氏度（零下 5 摄氏度）。在此期间，由于北极空气激增，低温和严寒席卷了北美东部的大部分地区。
Much of the ice in the image likely floated there from farther upriver, where tidal currents are weaker and salinity is lower. These conditions allow water to freeze sooner and at higher temperatures than the faster-flowing, brackish water near the river’s mouth, shown here. A complete freeze of the Hudson around Manhattan is unlikely, experts say , although it did occur back in 1888. Still, the ice buildup was substantial enough for NYC Ferry to suspend services for several days.
图像中的大部分冰可能是从更远的上游漂浮在那里的，那里的潮流较弱，盐度较低。这些条件使得水比河口附近流速较快的微咸水更快结冰，温度也更高，如图所示。专家表示，曼哈顿周围的哈德逊河不太可能完全结冰，尽管早在 1888 年就曾发生过这种情况。尽管如此，积冰量仍足以让纽约渡轮暂停服务数天。
Iced-up rivers can have other implications, from flooding and infrastructure damage to changes in hydrologic processes that affect water quality and aquatic habitats.
河流结冰可能会产生其他影响，从洪水和基础设施损坏到影响水质和水生栖息地的水文过程变化。
Scientists, government agencies, and emergency responders are increasingly turning to remote sensing technologies such as synthetic aperture radar and hyperspectral imaging to track river ice . Improved monitoring can aid in water resource management and mitigate ice’s effects on infrastructure and ecosystems.
科学家、政府机构和应急响应人员越来越多地利用合成孔径雷达和高光谱成像等遥感技术来跟踪河冰。改进监测有助于水资源管理并减轻冰对基础设施和生态系统的影响。
In addition to the river ice, other signs of winter were visible across New York. A fresh layer of snow coated the landscape following a winter storm, in which a weather station in Central Park recorded nearly 12 inches (30 centimeters) of accumulation on January 25. And the low angle of the midwinter Sun caused the tall buildings in Midtown and Lower Manhattan to cast long shadows.
除了河冰之外，纽约各地还可以看到冬天的其他迹象。一场冬季暴风雨过后，大地覆盖了一层新的积雪，1月25日，中央公园的一个气象站记录了近12英寸（30厘米）的积雪。仲冬太阳的低角度导致中城和曼哈顿下城的高楼投下长长的阴影。
In a neighboring borough on February 2, a shorter shadow was cast—this one by the weather-prognosticating groundhog known as Staten Island Chuck. Folklore holds that the sighting signals six more weeks of winter. When compared with data from NOAA’s National Centers for Environmental Information, the New York rodent was deemed the most accurate of his peer weather “forecasters.” This year, Chuck might be right, at least in the near term: the National Weather Service forecast called for below-average temperatures to persist, with Arctic air returning to the city by the weekend.
2 月 2 日，在邻近的一个行政区，投下了一个较短的影子——这是一种名为史坦顿岛查克 (Staten Island Chuck) 的天气预报土拨鼠所投下的影子。民间传说认为，这一景象预示着冬天还有六周。与美国国家海洋和大气管理局国家环境信息中心的数据相比，纽约啮齿动物被认为是同类天气“预报员”中最准确的。今年，查克可能是对的，至少在短期内：国家气象局预测气温将持续低于平均水平，北极空气将在周末返回该城市。
NASA Earth Observatory image by Michala Garrison, using Landsat data from the U.S. Geological Survey . Story by Lindsey Doermann.
NASA 地球观测站图像，由 Michala Garrison 拍摄，使用美国地质调查局的陆地卫星数据。林赛·杜尔曼的故事。