For example, for j = 1, according to the input parameters, which is 4 (precipitation, flow, temperature and evaporation), the number of input neurons is equal to 8. The output layer also has one neuron.
All layers except 'frost days' (p = 0.11) were found to have statistically significant contributions to the model but exclusion of annual mean precipitation, flow direction, and land cover resulted in the greatest deviations, suggesting that these layers had substantial influence on the model.
Generally speaking, the rate of long-term chemical weathering involving CO2 is mainly correlated with precipitation, stream flow, and temperature [33].
Water movement in hillslopes is determined by the subsurface characteristics that control flow paths connecting precipitation to stream flow generation.
Results show that infiltrated precipitation preferentially flows in fine-grained materials, which remain almost saturated, whereas gas flows preferentially through the most permeable coarse materials, which have higher volumetric gas saturation.
Wetlands are defined based on their hydrology, depth and source of water, precipitation, surface flow and subsurface flow, and vegetation type.
Their transitions through periods of drought and excess have been characterized, with precipitation and stream flows found to be currently close to their long-term average.
These layers are not present near the basin edges, and recharge occurs there from losing stream reaches, infiltrating precipitation, and flow through fractured consolidated rock in the adjacent mountains.
(2) When considering groups of sites, the dominance of precipitation over stream flow in delivering moisture was a predictor of high greenness; but this was not the case for any individual sites.
Correlations between the main indicators of precipitation and flow also were assessed.
