Davis’s Geographical Cycle (Cycle of Erosion)
William Morris Davis William Morris Davis (1850–1934) was an American geographer and geologist widely regarded as the founder of modern geomorphology. Born in Philadelphia, he taught for most of his…
Classical Landscape Evolution Theories
Classical Landscape Evolution Theories Landscape evolution theory addresses how landforms develop and change over time. Three classical models dominated 20th-century geomorphology, each offering a different explanation for how landscapes progress…
Historical Development of Hydrology
Hydrology — the science of water’s occurrence, distribution, and movement on and beneath the Earth’s surface — has developed over several thousand years, moving from practical observation to a rigorous…
What is Global Water Budget?
Global Water Budget The global water budget is the accounting of Earth’s total water — roughly 1.386 billion km³ — as it is distributed among reservoirs (oceans, ice caps and…
Hydrologic Cycle| Detail of the phenomenon of Hydrologic Cycle
The hydrologic cycle (or water cycle) is the continuous natural process by which water moves through Earth’s atmosphere, land, and oceans. It begins with evaporation, where heat from the sun…
What is Hydrology? Key areas within Hydrology.
Hydrology is the scientific study of water — its occurrence, distribution, movement, and properties as it circulates through the Earth’s atmosphere, land surface, and subsurface. It examines the complete water…
Effect of Disaster on Human Life
Disasters, whether it is natural (earthquake, flood, tsunami, drought, epidemics, landslides, or wildfire) or human-triggered (pollution, accidents, and wars), affect human life across several dimensions. Disasters influence human life and…
Long-Term Impacts and Consequences of Disasters
Long-Term Effects of Hazards and Disasters Disasters are an increasingly phenomena that we all clearly perceive and know that may have a direct impact on the welfare of regions where…
Chernobyl nuclear disaster 1986 (Ukraine)
The Chernobyl nuclear power plant disaster in April 1986 was caused by a faulty Soviet reactor design andcritical errors made by the plant‘s operators.This incident was directly linked to the…
Bhopal Gas Tragedy 1984
On December 3, 1984, over 500,000 people in the vicinity of the “Union Carbide India Limited” (a pesticide plant in Bhopal, Madhya Pradesh, India) were exposed to the highly toxic…