The Connection between Extreme Precipitation Variability over Monsoon Asia and Large-Scale Circulation Patterns
نویسندگان
چکیده
Spatial and temporal variability in precipitation has been dramatically changed due to climate change over the global domain. Increasing extreme events are pronounced various regions, including monsoon Asia (MA) recent decades. The present study evaluated light of intensity, duration, frequency with several indices developed by Expert Team on Climate Change Detection Indices (ETCCDI) MA region. This uses an improved version (APHRO_V1901) Asian Precipitation Highly Resolved Observation Data Integration Towards Evaluation (APHRODITE-2) gridded rainfall product. Results showed that spatial is reflected annual mean distribution MA. Maximum one-day (R × 1) contributed from extremes (R95) depict a peak decadal values topography regions. A significant positive trend R 1 (with slope 0.3 mm/yr) greater than 95th percentile (R95: 0.5 predominantly observed trends regional average Maritime continental countries exhibit inclined R10, whereas central arid regions show decreasing tendency continuous dry days (CDD). R95 India, region China, reside equator some parts Japan, Philippines. When comparing influence surface temperature (T) total column water vapor (TCW) indices, TCW seems be crucial attributor meridional variability. mutual correlation analysis depicts strongly correlates terms all indices. Among circulation patterns, prevalent conditions sea (SST) equatorial Pacific Ocean have R10 possess relatively (0.86 0.91) Southern Oscillation Index. maximum number consecutive (CDD) shows increasing phase North Atlantic
منابع مشابه
African aerosol and large-scale precipitation variability over West Africa
We investigated the large-scale connection between African aerosol and precipitation in the West African Monsoon (WAM) region using 8-year (2000–2007) monthly and daily Moderate Resolution Imaging Spectroradiometer (MODIS) aerosol products (aerosol optical depth, fine mode fraction) and Tropical Rainfall Measuring Mission (TRMM) precipitation and rain type. These high-quality data further confi...
متن کاملOn the Relation Between the Large-Scale Tropospheric Circulation and Air Quality in Tehran
The large-scale tropospheric circulation can play a controlling role in the accumulation and ventilation of air pollutants. It thus impacts air quality in large urban areas. This paper investigates the statistical relations between the dynamical indices related to circulation in the troposphere and visibility as a surrogate for air pollution in the urban area of Tehran for the climatological pe...
متن کاملP1.23 Downscaling and Projection of the Wintertime Extreme Daily Precipitation over North America by Large-scale Atmospheric Circulation
The influence of large scale circulation, represented by the first three rotated EOFs and their associated PCs of wintertime mean sea level pressure, on winter maximum daily precipitation over the North America during 1948-1998 has been investigated. The observed relationship between the circulation and the extreme precipitation is then used to derive projected changes in extreme precipitation ...
متن کاملLarge-scale atmospheric circulation patterns associated with the occurrence of severe storms Zab basin
متن کامل
Narrow Mountains of Asia Shape Monsoon Circulation
Imagine a world without mountains! Temperature, wind and rainfall patterns would differ greatly from what we know. In Asia, the very high Tibetan Plateau exerts a strong influence on climate. Heated directly by intense solar radiation during summertime, the temperatures in June– August form a regional maximum. Lhasa at 3.65 km above sea level, for example, has an average comfortable 15°C during...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Atmosphere
سال: 2021
ISSN: ['2073-4433']
DOI: https://doi.org/10.3390/atmos12111492