Scientists have observed nearly 1 degree Celsius increase of global mean temperature during the last 100 years and they make different predictions / projections on climate change. Has any researcher observed significant change in rainfall amount / pattern in a country or a region during the same period (last 100 years)? If there is so, how you explain that in meteorological / hydrological point of view?
We see reports of precipitation in one day equivalent to a "normal" precipitation for a month. This is what causes flooding when the streets turn into rivers (this is the evidence you are looking for): common phenomenon now, but never seen that before climate change started.
Yes Sir. There are extreme events with one day rainfall exceeding one-month rainfall, even before 100 years. My question is whether there is an increasing trend of such events (due to global warming) which can be proved by historical data? Flooding may have many causes other than climate change, such as urbanization, reduction of pervious area, encroachments of water ways & flood plains etc.
You may consider looking at this paper. Thank you.
Article Spatial and Temporal Trends in Diurnal Temperature and Preci...
We observed a significant decline in seasonal rainfall
after 1993 at Karkuk (Iraq) along with a slight increase
in mean air temperature during the same period.
More details in:
An analysis of characteristic discharges for the
Adaim River (Iraq) in multiyear period.
River Res Applic. 2019; 35: 375-385.
Thanks Mr. Benson and Hussein. I am doing a similar research with historical data from my own country. I hope your experience will be very much useful for me and many others who are engaged in climate resilience works. I'll come back to you with the results of my research in few weeks. Thanks again.
Sra Prema,
A moradia do homem no planeta terra é muito recente, geologicamente falando (15-20 mil anos), imagine agora as observações pluviométricas (100-200 anos), ou seja, existem processos cíclicos que desconhecemos pois nossas observações são incipientes. Podemos sim esta vivendo um desequilíbrio global, mas não podemos perder de vista que não temos dados suficientes para uma comparação efetiva dos fenômenos meteorológicos existentes no planeta.
I expected more research in this field since it is a subject of global interest, but the response to my question was not so good. I also did some analysis on the trends of rainfalls of Sri Lanka during the last century and my observations are presented under ‘Climate change in Sri Lanka, what does actually the data reflect’ in my ‘Research-gate’ page. I hope that will be useful to you and request your feedback too.
- Badges
- Science topic
- Similar topics
- Geoscience
- Hydrology