El Niño - National Geographic Society
2023年10月19日 · The Southern Oscillation is a change in air pressure over the tropical Pacific Ocean. When coastal waters become warmer in the eastern tropical Pacific (El Niño), the atmospheric pressure above the ocean decreases. Climatologists define these linked phenomena as El Niño-Southern Oscillation (ENSO).
What You Need to Know about El Niño - National Geographic …
2015年10月26日 · El Niño is a climate pattern that describes the unusual warming of surface waters of the tropical eastern Pacific. “ During an El Niño event, sea surface temperatures across a watery expanse often as large as the United States can warm by 1–3° Fahrenheit or more for a period of from a few months to a year or two.”.
La Niña - Education | National Geographic Society
2023年10月19日 · La Niña is considered to be the counterpart to El Niño, which is characterized by unusually warm ocean temperatures in the equatorial region of the Pacific Ocean. Together, La Niña and El Niño are the "cold" (La Niña) and "warm" (El Niño) phases of the El Nino-Southern Oscillation (ENSO).
El Niño is a climate pattern that describes the unusual warming of surface waters along the tropical west coast of South America. El Nino has an impact on ocean temperatures, the speed and strength of ocean currents, the health of coastal fisheries, and local weather from Australia to South America.
Upwelling - Education | National Geographic Society
2024年1月2日 · During El Niño, a weather phenomenon that typically occurs every three to seven years, the Pacific Ocean’s climate changes dramatically. The transition zone between warm surface water and cold deep water deepens.
Sustainability Guidelines - National Geographic Society
2023年10月20日 · National Geographic will minimize negative environmental impacts and greenhouse gas emissions by seeking local, organic and sustainably sourced resources, using recycled and recyclable content when possible and minimizing waste of energy, water, food and other resources.
Monsoon - Education | National Geographic Society
A monsoon is a seasonal change in the direction of the prevailing, or strongest, winds of a region. Monsoons cause wet and dry seasons throughout much of the tropics. Monsoons are most often associated with the Indian Ocean. Monsoons always blow from cold to warm regions.
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Rain Shadow - Education
2023年10月19日 · A rain shadow is a patch of land that has been forced to become a desert because mountain ranges blocked all plant-growing, rainy weather. On one side of the mountain, wet weather systems drop rain and snow. On the other side of the mountain—the rain shadow side—all that precipitation is blocked. In a rain shadow, it’s warm and dry.