University of New Hampshire

Cacophonies of Metronomes: Multi-sequence Generalizations of Beatty's Theorem

Two multi-sequence generalizations of Beatty's theorem, both derived from a single geometric observation (the Height Lemma) about monotone paths crossing the faces of a cubical tiling of the positive orthant. The first partitions the positive integers into n sieved Beatty sequenc...

Measuring Ocean Surface Waves

Abstract Propagating waves on the ocean surface can be represented as a stochastic process whose statistics are characterized by a spectrum. This paper reviews methods for measuring the wave spectrum and related quantities. Observations begin by sensing fluid dynamical properties...

Regional FireworksPollution over East and SoutheastAsia from Airborne Observations around the Spring Festival Period

Abstract Fireworks are spectacular, but they also pollute the atmosphere. While fireworks are known to rapidly increase local pollution levels, the regional influences and nanosized appearance of fireworks-related particles are poorly understood. This study collected aerosol part...

Increasing Respiration Weakens the Carbon Sink Over Two Decades in a Temperate Deciduous Forest

ABSTRACT Temperate deciduous forests have been major carbon sinks over the past century, largely due to regrowth following historical land use. However, the persistence of this sink is uncertain as forests age under global change. Using two decades (2004–2023) of eddy covariance...