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Articles by Robert Emberson
Satellites Support Disaster Response to Storm-Driven Landslides
High winds and flooding storm surges driven by tropical cyclones cause some of the deadliest and most damaging weather-related conditions around the world. The rainfall that cyclones bring compounds these conditions and, in hilly or mountainous areas, can trigger landslides that cause even more widespread and devastating impacts. When extreme precipitation occurs over short time frames, hillslopes may become saturated and critically unstable.
Global connections between El Nino and landslide impacts
Abstract El Nino is a critical part of global inter-annual climate variability, and the intensity of El Nino has major implications for rainfall-induced natural hazards in many vulnerable countries. The impact of landslides triggered by rainfall is likely to be modulated by the strength of El Nino, but the nature of this connection and the places where it is most relevant remains unconstrained.
Co-variation of silicate, carbonate and sulfide weathering drives CO2 release with erosion
Abstract Global climate is thought to be modulated by the supply of minerals to Earth’s surface. Whereas silicate weathering removes carbon dioxide (CO2) from the atmosphere, weathering of accessory carbonate and sulfide minerals is a geologically relevant source of CO2. Although these weathering pathways commonly operate side by side, we lack quantitative constraints on their co-variation across erosion rate gradients.
New mining frontiers: Digging into the unknown
While climate change occupies the headlines as our biggest long-term concern for sustainability, there may well be further anthropogenic challenges that arise in the next century as we disrupt the delicate interplay of natural ecological and geological cycles to satisfy the need for resources of our ever-growing population.
The science before (and during) the storm - Part 2 - The Field
Sampling landslides in the field varies in difficulty; some are high up on hillslopes or in the headwaters of steep catchments, while others tumble into easily accessed river valleys. When planning for such sampling, we had mainly anticipated that the weather would not be the biggest obstacle, but that’s what transpired for a major portion of our fieldwork in central Taiwan.
The science before (and during) the storm - Part 1 - The Field
Recently I was fortunate to participate in a fieldtrip to one of most interesting places I’ve ever worked – the central mountains of Taiwan. We were looking to sample the products of chemical weathering (the dissolution of rocks by fluid) within landslides, as well as their impact on the chemistry of the highly dynamic rivers draining these tropical mountains.
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