Studying the pattern of monsoons in South Asia since 1980, researchers observed an increase in the intensity of wet spells and in
the frequency of dry spells.
Not exact matches
To understand how these sensitive butterflies might respond to future
dry spells, the scientists then used different scenarios
of carbon dioxide emissions to predict the
frequency of future droughts up to the year 2100.
However, precipitation intensity changes nonlinearly with temperature (Lenderink, and van Meijgaard, 2008; doi: 10.1038 / ngeo262), circulations and the
frequency of dry / wet
spells may change (Haarsma et al, 2009; doi: 10.1029 / 2008GL036617), simultaneous occurrence
of floods and storm surges changes nonlinearly (Kew et al, in review), and this is just the «meteorological» part
of the spectrum.
In particular, in the European Mediterranean region, increases in the
frequency of extreme climate events during specific crop development stages (e.g., heat stress during flowering period, rainy days during sowing time), together with higher rainfall intensity and longer
dry spells, are likely to reduce the yield
of summer crops (e.g., sunflower).
The climate change has visible signs in Pakistan, which include hotter summers, early cold
spell, monsoon irregularity with untimely rainfall, increased rainfall over short period causing water logging, increased
frequency and intensity
of floods — especially recent floods, which destroyed livelihoods in Punjab and Sindh districts — very little rainfall in
dry period, crop failure due to drought and salinity intrusion along the coastal region.