In what is arguably one of the most dramatic phenomena possibly associated with climate change or natural climate variability, the location of El Niño has shifted more to the central Pacific in recent decades. In this study, we use statistical analyses, numerical model experiments and case studies to show that the Central-Pacific El Niño enhances the drying effect, but weakens the wetting effec...

The velocity and mixing field of two coaxial jet configurations has been experimentally characterized by means of hotand cold-wire anemometry to investigate the effect of the initial conditions on the flow development, and to determine the leading processes in the “mixing transition” of the two streams. Amongst the possible operating conditions, four configurations with different inner and oute...

In the streaming model, the order of the stream can significantly affect the difficulty of a problem. A t-semirandom stream was introduced as an interpolation between random-order (t = 1) and adversarial-order (t = n) streams where an adversary intercepts a random-order stream and can delay up to t elements at a time. IITK Sublinear Open Problem #15 asks to find algorithms whose performance deg...

Current wayfinding research usually addresses the question of how people navigate, orientate and how they can be supported in unfamiliar environments. This scenario is important to understand the underlying concepts of wayfinding and to identify general principles applicable in wayfinding assistance. However, in every day live we usually perform wayfinding tasks in partial (not every place and ...