نتایج جستجو برای: hydrological cycle

تعداد نتایج: 288176  

2014
Mohamed Elhag Jarbou A. Bahrawi

The amount of water on earth is the same and only the distribution and the reallocation of water forms are altered in both time and space. To improve the rainwater harvesting a better understanding of the hydrological cycle is mandatory. Clouds are major component of the hydrological cycle; therefore, clouds distribution is the keystone of better rainwater harvesting. Remote sensing technology ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2006
Mao-Chang Liang Hyman Hartman Robert E Kopp Joseph L Kirschvink Yuk L Yung

During Proterozoic time, Earth experienced two intervals with one or more episodes of low-latitude glaciation, which are probable "Snowball Earth" events. Although the severity of the historical glaciations is debated, theoretical "hard Snowball" conditions are associated with the nearly complete shutdown of the hydrological cycle. We show here that, during such long and severe glacial interval...

2010
Jiping Liu Judith A. Curry

1 The observed sea surface temperature (SST) in the Southern Ocean shows a 2 substantial warming trend for the second half of the 20th century. Associated with the 3 warming, there has been an enhanced atmospheric hydrological cycle in the Southern 4 Ocean that results in an increase of the Antarctic sea ice for the past three decades through 5 the reduced upward ocean heat transport and increa...

2013
Salvatore Manfreda Kelly K. Caylor

Society is facing growing environmental problems that require new research efforts to understand the way ecosystems operate and survive, and their mutual relationships with the hydrologic cycle. In this respect, ecohydrology suggests a renewed interdisciplinary approach that aims to provide a better comprehension of the effects of climatic changes on terrestrial ecosystems. With this aim, a cou...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Javier Perez-Saez Theophile Mande Natalie Ceperley Enrico Bertuzzo Lorenzo Mari Marino Gatto Andrea Rinaldo

We report about field and theoretical studies on the ecology of the aquatic snails (Bulinus spp. and Biomphalaria pfeifferi) that serve as obligate intermediate hosts in the complex life cycle of the parasites causing human schistosomiasis. Snail abundance fosters disease transmission, and thus the dynamics of snail populations are critically important for schistosomiasis modeling and control. ...

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