Ten-year (2009-2018) monthly rainfall data was obtained from the Nigerian Meteorological Agency (NIMET). The processed and analysed using OriginPro 8.5 software. Statistical tools such as standard deviation Coefficient of Variation (CV) were used for presentation while analyses done Mann-Kendall Sen’s slope linear regression to examine variations across months years. Results revealed higher val...

Annual, seasonal and intra-seasonal variations in rainfall affect crop production from land preparation to the realization of potential yield a region. Particularly, onset rainy season is most crucial for determining sowing period. Statistical analysis (Modified Mann-Kendall aka MMK-test trend likelihood ratio test shifting pattern) 60 years south interior Karnataka (SIK) inferred presence temp...

Changing trends in ecosystem productivity can be quantified using satellite observations of Normalized Difference Vegetation Index (NDVI). However, the estimation of trends from NDVI time series differs substantially depending on analyzed satellite dataset, the corresponding spatiotemporal resolution, and the applied statistical method. Here we compare the performance of a wide range of trend e...

evapotranspiration is one of the most important components of the hydrological cycle which is directly influenced by atmospheric conditions. this study investigated annual and seasonal trends in reference evapotranspiration (et0) and its key influencing climatic variables during 1966-2005 at 10 stations in southern iran (with centrality of fars province). first, multivariate regression analysis...

Climate variability has been and continues to be, the principal source of fluctuations in global food production in countries of the developing world and is of serious concern in the Kingdom of Swaziland. The mean annual rainfall is considerably low in most parts of the country and temporal variability is quite high. In some places, as much as 60% of the annual total rainfall is recorded in jus...

in this paper trends of precipitation and stream flow are analyzed in the atrak river basin in the north khorasan province. normal score linear regression, mann-kendall, and seasonal kendall trend tests were adopted. three precipitation variables and two stream flow variables including total precipitation, maximum daily precipitation, and number of rainy days, mean discharge and peak discharge ...

Besides sea surface temperature (SST), soil moisture (SM) exhibits a significant memory and is likely to contribute to atmospheric predictability at the seasonal timescale. In this respect, West Africa was recently highlighted as a “hot spot” where the land-atmosphere coupling could play an important role, through the recycling of precipitation and the modulation of the meridional gradient of m...