Large lakes over the Tibetan Plateau may boost snow downwind: implications for snow disaster

Cenozoic Plate TectonicsThe Earth's surface is always changing. The Cenozoic Era, which began about 66 million years ago and continues today, has been a time of major changes in Earth's land and oceans. Large pieces of Earth's crust, called tectonic plates, have moved to form mountains, shifting continents and opening new ocean basins. These movements have shaped the world as we know it.During the Cenozoic, the continents moved into their current positions. Mountain ranges like the Himalayas...

Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...

There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...

Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...

SupervolcanoesSupervolcanoes are rare but powerful volcanoes that can cause massive eruptions. Unlike regular volcanoes that often form cone-shaped mountains, supervolcanoes can appear as large, flat depressions called calderas. A well-known example is Crater Lake in Oregon, which was once a towering volcano called Mount Mazama. These calderas form when a large amount of magma is released and the ground above collapses. Though they do not erupt often, supervolcanoes can release huge amounts of...

TsunamiA tsunami is a series of large ocean waves caused by a sudden water movement. Most tsunamis happen when an earthquake, volcanic eruption, or underwater landslide shifts the ocean floor. This sudden movement displaces a huge amount of water, creating waves that spread across the ocean. When these waves reach shallow coastal areas, they grow taller and can cause massive flooding. Scientists study tsunamis to understand how they form and to develop early warning systems that can help...