Longer durations of 'no rain' cause the ground harden to a much less porous, concrete-like surface that cannot absorb the rain, when it does come, fast enough. So the water pools and flows, causing flood conditions.
Longer durations of 'no rain' cause the ground harden to a much less porous, concrete-like surface that cannot absorb the rain, when it does come, fast enough. So the water pools and flows, causing flood conditions.
edit: glaciers melt in summer, I am surprised why they are melting in rainy season. No matter how you vote, just explain why this odd behavior.
The ancients even created a name for it: La Nina.
That said, back in 1992 this only affected 3 million people, and now it's 30 million. The population of the country only doubled over the same time span, so it seems like this year's flooding is easily five times worse than before
Or the distribution of people living in the flood plane drastically changed in that period. See my other comment @ https://news.ycombinator.com/item?id=32653203
e.g. https://www.reuters.com/article/us-pakistan-environment-fore...
https://www.reuters.com/business/environment/wmo-forecasts-f...
“Last hundred years” for the former interpretation.
(Because there is no year 0 in the AD/CE calendar, so the first century in the calendar starts in year 1, the second in 101, etc...)
We had a triple dip in 1998, and before that 1976.