Live
- Chanchalguda Jail Officials Say They Haven't Received Bail Papers Yet, Allu Arjun May Stay in Jail Tonight
- BJP leaders present evidence of illegal voters in Delhi, urge EC for swift action
- Exams will not be cancelled: BPSC chairman
- Nagesh Trophy: Karnataka, T.N win in Group A; Bihar, Rajasthan triumph in Group B
- YS Jagan condemns the arrest of Allu Arjun
- Economic and digital corridors to maritime connectivity, India and Italy building vision for future, says Italian Ambassador
- SMAT 2024: Patidar's heroics guide Madhya Pradesh to final after 13 years
- CCPA issues notices to 17 entities for violating direct selling rules
- Mamata expresses satisfaction over speedy conviction in minor girl rape-murder case
- Transparent Survey Process for Indiramma Housing Scheme Directed by District Collector
Fresh estimates of Earth's liquid assets revealed
Using NASA\'s fleet of Earth-observing satellites, scientists have provided estimates for the global water cycle budget for the first decade of the 21st century, taking the pulse of the planet and setting a baseline for future comparisons. The water cycle describes how water evaporates from the Earth\'s surface, rises into the atmosphere, cools, condenses to form clouds and falls again to the surface as precipitation.
Washington: Using NASA's fleet of Earth-observing satellites, scientists have provided estimates for the global water cycle budget for the first decade of the 21st century, taking the pulse of the planet and setting a baseline for future comparisons. The water cycle describes how water evaporates from the Earth's surface, rises into the atmosphere, cools, condenses to form clouds and falls again to the surface as precipitation.
About 75 per cent of the energy (or heat) in the global atmosphere is transferred through the evaporation of water from the Earth's surface. The results, published in the Journal of Climate, show that each year heat from the Sun evaporates 449,500 cubic km of water from the world's oceans.
On land, 70,600 cubic km of water evaporates from soil and plants. The moisture collects as water vapour in the atmosphere, and winds blow it to other parts of the world where it condenses into clouds, rainfall and snowfall. The scientists also calculated that 403,500 cubic km of precipitation fall over the ocean each year, an estimate about five percent higher than the previous standard estimate.
