Though Egyptian agriculture was (and still is) based on irrigation, the flow of the Nile is controlled ultimately by rainfall patterns at its headwaters.
And it is this: fuller rivers cannot be explained by more rainfall or haze or changes in land use, but they can be explained by higher concentrations of atmospheric carbon dioxide.
Other parts of the region were bit by torrential rainfall, including parts of County Durham and Teesside.
Soil degradation could be worsened by increased erosion caused by higher rainfall, while elsewhere more land could become desert.
There are fears poor harvests caused by heavy rainfall could cause greater damage to the industry than 2001's devastating foot-and-mouth outbreak.
The road has been affected by recent heavy rainfall, which has resulted in large areas of standing water.
Mr Thakkar argues that small projects offer much better returns, even for the crucial task of refilling aquifers by capturing monsoon rainfall.
The problems were caused by sudden heavy rainfall which came rolling down the hills that surround the town and flowed straight into houses.
BBC: Thatcham Cold Ash Hill's flood 'basin' awarded ?700,000
Cloud seeding is a technology that facilitates rainfall by extracting the maximum amount of moisture from the atmosphere, condensing it around chemical pellets.
These aerosols, most of which come out of vehicle exhaust pipes, could increase rainfall by acting as the nuclei around which raindrops form.
She then correlated the data from these visits with estimates of local rainfall made by examining the composition of rocks from nearby caves.
These suggested that rainfall had fallen by 20-30% in the global cooling 4, 200 years ago.
"The recharge in the aquifers brought about by the abnormally heavy spring rainfall is most welcome, " he said.
The scanty winter rainfall is brought by Mediterranean depressions, but the amounts are rather variable from year to year.
Homes in the Drybridge Street and Wonastow Road areas have been damaged several times by high rising water during heavy rainfall.
BBC: NEWS | UK | Wales | South East Wales | Flood defences for at-risk homes
She also spoke to people who were affected by the 2009 floods when unprecedented rainfall caused rivers to burst their banks.
The current estimates are produced by analyzing a range of variables like rainfall, temperature and evaporation.
These places are affected by other factors, such as changes in rainfall due to climate change, and certain compensating effects (basin infilling).
Wessex Water said it had drafted in extra staff to help the council and customers affected by flooding after an "unprecedented amount of rainfall".
The deep circulation of the oceans controls the weather and climate of the earth by moving heat, generating storms and controlling rainfall and droughts.
He said it's possible rainfall from mountains will swell rivers, and by Sunday night or Monday the surge could reach already flooded locations in Bangladesh.
The price of gas exports has fallen too, while Brazil (the main market) has cut imports by a third because of a slowing economy and plentiful rainfall for hydroelectricity.
Mr Hopps said although the recent heavy rainfall had caused the work to fall behind by three to four weeks, workers "were still rushing to get it finished on time".
In addition, aquifers offer an essential buffer to populations in dry regions by providing a reliable source of water even during long periods without rainfall.
As a desperate power company tried to reconnect tens of thousands of other people, Rainfall Productions called to ask if its men would stop by and shut down the village's automatic street lights.
The Isle of Wight suffered badly on Monday as 41mm of rain fell by midnight, more than half the island's total October average rainfall.
St Denys church, Severn Stoke, was hit by the December floods when the River Severn burst its banks following heavy rainfall across England and Wales.
Friedberg said Weatherbill could use data from microwave satellites to measure the density of clouds on a minute by minute basis, enabling it to build a long range model of rainfall around the world.
Rainfall totals of around 500 millimetres (20 inches) have been forecast by the Japanese Meteorological Agency.
Agricultural villages disappeared, to be replaced by the temporary camps of pastoralists, whose herds grazed on wild plants which required less rainfall than farmed crops.
应用推荐