scholarly journals Analysis of rainfall trends and variabilities for three decades in Sub – Sahara Africa

2021 ◽  
Vol 12 (1) ◽  
pp. 55
Author(s):  
Francis O. Aweda ◽  
Adetunji A. Adeniji ◽  
Jacob A. Akinpelu ◽  
Ayodele J. Abiodun
Keyword(s):  
Rainfall Trends

Rainfall trends over a North Atlantic small island in the period 1937/1938–2016/2017 and an early climate teleconnection

2021 ◽  
Vol 144 (1-2) ◽  
pp. 469-491
Author(s):  
Luis Angel Espinosa ◽  
Maria Manuela Portela ◽  
Rui Rodrigues
Keyword(s):  
North Atlantic ◽  
Small Island ◽  
Rainfall Trends

scholarly journals Constraints on Southern Australian Rainfall Change Based on Atmospheric Circulation in CMIP5 Simulations

2017 ◽  
Vol 30 (1) ◽  
pp. 225-242 ◽  
Author(s):  
Michael R. Grose ◽  
James S. Risbey ◽  
Aurel F. Moise ◽  
Stacey Osbrough ◽  
Craig Heady ◽  
...  
Keyword(s):  
Atmospheric Circulation ◽  
Storm Track ◽  
Polar Front ◽  
Rainfall Trends ◽  
Circulation Change ◽  
Eastern Australia ◽  
Projected Change ◽  
Rainfall Reduction ◽  
Rainfall Projection ◽  
Australian Rainfall

Atmospheric circulation change is likely to be the dominant driver of multidecadal rainfall trends in the midlatitudes with climate change this century. This study examines circulation features relevant to southern Australian rainfall in January and July and explores emergent constraints suggested by the intermodel spread and their impact on the resulting rainfall projection in the CMIP5 ensemble. The authors find relationships between models’ bias and projected change for four features in July, each with suggestions for constraining forced change. The features are the strength of the subtropical jet over Australia, the frequency of blocked days in eastern Australia, the longitude of the peak blocking frequency east of Australia, and the latitude of the storm track within the polar front branch of the split jet. Rejecting models where the bias suggests either the direction or magnitude of change in the features is implausible produces a constraint on the projected rainfall reduction for southern Australia. For RCP8.5 by the end of the century the constrained projections are for a reduction of at least 5% in July (with models showing increase or little change being rejected). Rejecting these models in the January projections, with the assumption the bias affects the entire simulation, leads to a rejection of wet and dry outliers.

scholarly journals Uncovering consistencies in Indian rainfall trends observed over the last half century

2014 ◽  
Vol 123 (2) ◽  
pp. 287-299 ◽  
Author(s):  
Guillaume Lacombe ◽  
Matthew McCartney
Keyword(s):  
Half Century ◽  
Rainfall Trends ◽  
Indian Rainfall

Rainfall trends in Fiji

2013 ◽  
Vol 34 (5) ◽  
pp. 1501-1510 ◽  
Author(s):  
Ravind Kumar ◽  
Mark Stephens ◽  
Tony Weir
Keyword(s):  
Rainfall Trends

scholarly journals Rainfall trends over 40 years in the Cobres River basin, Portugal: variability and impacts

2015 ◽  
Vol 366 ◽  
pp. 127-128
Author(s):  
R. Marques da Silva ◽  
C. A. G. Santos ◽  
M. Moreira ◽  
J. Corte-Real ◽  
R. de Carvalho Barbosa
Keyword(s):  
River Basin ◽  
Rainfall Trends ◽  
Over 40 Years

scholarly journals Rainfall trend analysis using Mann-Kendall and Sen’s slope estimator test in West Kalimantan

2021 ◽  
Vol 893 (1) ◽  
pp. 012006
Author(s):  
F Aditya ◽  
E Gusmayanti ◽  
J Sudrajat
Keyword(s):  
Climate Change ◽  
Rainfall Variability ◽  
Annual Rainfall ◽  
Sen’S Slope Estimator ◽  
West Kalimantan ◽  
Rainfall Analysis ◽  
Sen’S Slope ◽  
Rainfall Trends ◽  
Slope Estimator ◽  
The Impact

Abstract Climate change has been a prominent issue in the last decade. Climate change on a global scale does not necessarily have the same effect in different regions. Rainfall is a crucial weather element related to climate change. Rainfall trends analysis is an appropriate step in assessing the impact of climate change on water availability and food security. This study examines rainfall variations and changes at West Kalimantan, focusing on Mempawah and Kubu Raya from 2000-2019. The Mann-Kendall (MK) and Sen's Slope estimator test, which can determine rainfall variability and long-term monotonic trends, were utilized to analyze 12 rainfall stations. The findings revealed that the annual rainfall pattern prevailed in all locations. Mempawah region tends to experience a downward trend, while Kubu Raya had an upward trend. However, a significant trend (at 95% confidence level) was identified in Sungai Kunyit with a slope value of -33.20 mm/year. This trend indicates that Sungai Kunyit will become drier in the future. The results of monthly rainfall analysis showed that significant upward and downward trends were detected in eight locations. Rainfall trends indicate that climate change has occurred in this region.

Analysis of spatial and temporal rainfall trends in Sicily during the 1921–2012 period

2015 ◽  
Vol 126 (1-2) ◽  
pp. 113-129 ◽  
Author(s):  
Lorena Liuzzo ◽  
Enrico Bono ◽  
Vincenzo Sammartano ◽  
Gabriele Freni
Keyword(s):  
Rainfall Trends
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