Outputs (308)

Blood, lead and spheres: A hindered settling equation for sedimentologists based on metadata analysis (2022)
Journal Article

A revision of the popular equation of Richardson and Zaki (1954a, Transactions of the Institute of Chemical Engineering, 32, 35–53) for the hindered settling of suspensions of non-cohesive particles in fluids is proposed, based on 548 data sets from... Read More about Blood, lead and spheres: A hindered settling equation for sedimentologists based on metadata analysis.

The Influence of In‐Channel Obstacles on River Sound (2022)
Journal Article

The sound of a river can change from a babbling brook to a thunderous torrent, and we have previously shown that there is the potential to predict river stage from the river's sub-aerial sound. Here, we examined how alterations in channel configurati... Read More about The Influence of In‐Channel Obstacles on River Sound.

A multi‐method approach to analyse changes in gully characteristics between 2009 and 2018 in southeast Nigeria (2022)
Journal Article

Gully erosion is the dominant environmental problem in southeast Nigeria and has led to loss of human and material resources. In this study, we evaluated changes in gully characteristics in southeast Nigeria and their potential drivers between 2009 a... Read More about A multi‐method approach to analyse changes in gully characteristics between 2009 and 2018 in southeast Nigeria.

GPS-observed elastic deformation due to surface mass balance variability in the Southern Antarctic Peninsula (2022)
Journal Article

In Antarctica, Global Positioning System (GPS) vertical time series exhibit non-linear signals over a wide range of temporal scales. To explain these non-linearities, a number of hypotheses have been proposed, among them the short-term rapid solid Ea... Read More about GPS-observed elastic deformation due to surface mass balance variability in the Southern Antarctic Peninsula.

Fill, flush or shuffle: How is sediment carried through submarine channels to build lobes? (2022)
Journal Article

Submarine channels are the primary conduits for land-derived material, including organic carbon, pollutants, and nutrients, into the deep-sea. The flows (turbidity currents) that traverse these systems can pose hazards to seafloor infrastructure such... Read More about Fill, flush or shuffle: How is sediment carried through submarine channels to build lobes?.

Stata tip 144: Adding variable text to graphs that use a by() option (2021)
Journal Article

Summer sea-ice variability on the Antarctic margin during the last glacial period reconstructed from snow petrel (Pagodroma nivea) stomach-oil deposits (2022)
Journal Article

Antarctic sea ice is a critical component of the climate system affecting a range of physical and biogeochemical feedbacks and supporting unique ecosystems. During the last glacial stage, Antarctic sea ice was more extensive than today, but uncertain... Read More about Summer sea-ice variability on the Antarctic margin during the last glacial period reconstructed from snow petrel (Pagodroma nivea) stomach-oil deposits.

Remote sensing for monitoring tropical dryland forests: A review of current research, knowledge gaps and future directions for Southern Africa (2022)
Journal Article

Climate change, manifest via rising temperatures, extreme drought, and associated anthropogenic activities, has a negative impact on the health and development of tropical dryland forests. Southern Africa encompasses significant areas of dryland fore... Read More about Remote sensing for monitoring tropical dryland forests: A review of current research, knowledge gaps and future directions for Southern Africa.

Satellite data track spatial and temporal declines in European beech forest canopy characteristics associated with intense drought events in the Rhön Biosphere Reserve, central Germany (2022)
Journal Article

The increasing intensity and frequency of droughts under climate change demands effective ways to monitor drought impacts. We sought to determine how different satellite remote sensing sources influence our ability to identify temporal and spatial im... Read More about Satellite data track spatial and temporal declines in European beech forest canopy characteristics associated with intense drought events in the Rhön Biosphere Reserve, central Germany.

Speaking Stata: Loops in parallel (2021)
Journal Article

This column is a tutorial discussing looping in parallel using foreach and forvalues. Such looping may use not only local macros defined for the purpose but also other devices, including the gettoken command and ways to increment and decrement other... Read More about Speaking Stata: Loops in parallel.

Evaluation of the Fluvial Response to Tectonic Uplift From Grain-Size Distribution in Riverbed Gravels at the Northeastern Margin of the Tibetan Plateau (2022)
Journal Article

Downstream fining of riverbed gravels is generally linked with the processes of hydraulic sorting and abrasion. Hydraulic sorting is when larger gravel clasts stop moving in response to decreasing flow energy, whereas, finer grains will continue to b... Read More about Evaluation of the Fluvial Response to Tectonic Uplift From Grain-Size Distribution in Riverbed Gravels at the Northeastern Margin of the Tibetan Plateau.

How distinctive are flood-triggered turbidity currents? (2022)
Journal Article

Turbidity currents triggered at river mouths form an important highway for sediment, organic carbon, and nutrients to the deep sea. Consequently, it has been proposed that the deposits of these flood-triggered turbidity currents provide important lon... Read More about How distinctive are flood-triggered turbidity currents?.

Palaeoglaciation in the low latitude, low elevation tropical Andes, northern Peru (2022)
Journal Article

Characterising glaciological change within the tropical Andes is important because tropical glaciers are sensitive to climate change. Our understanding of glacier dynamics and how tropical glaciers respond to global climate perturbations is poorly co... Read More about Palaeoglaciation in the low latitude, low elevation tropical Andes, northern Peru.

Stata tip 141: Adding marginal spike histograms to quantile and cumulative distribution plots (2021)
Journal Article

Working with communities on disaster risk research: reflections from cross-disciplinary practice (2022)
Journal Article

Investigating the roles of relative sea-level change and glacio-isostatic adjustment on the retreat of a marine based ice stream in NW Scotland (2022)
Journal Article

The record of ice-sheet demise since the last glacial maximum (LGM) provides an opportunity to test the relative importance of instability mechanisms, including relative sea-level (RSL) change, controlling ice-sheet retreat. Here we examine the recor... Read More about Investigating the roles of relative sea-level change and glacio-isostatic adjustment on the retreat of a marine based ice stream in NW Scotland.

Temperature control on CO2 emissions from the weathering of sedimentary rocks (2021)
Journal Article

Sedimentary rocks can release carbon dioxide (CO2) during the weathering of rock organic carbon and sulfide minerals. This sedimentary carbon could act as a feedback on Earth’s climate over millennial to geological timescales, yet the environmental c... Read More about Temperature control on CO2 emissions from the weathering of sedimentary rocks.

Speaking Stata: Ordering or ranking groups of observations (2021)
Journal Article

Results for categorical variables may often be clearer if those variables are reordered or reranked, say, according to some measure of absolute or relative frequency or according to summaries of some other variable. Some graphical and tabulation comm... Read More about Speaking Stata: Ordering or ranking groups of observations.

Automated determination of landslide locations after large trigger events: advantages and disadvantages compared to manual mapping (2022)
Journal Article

Earthquakes in mountainous areas can trigger thousands of co-seismic landslides, causing significant damage, hampering relief efforts, and rapidly redistributing sediment across the landscape. Efforts to understand the controls on these landslides re... Read More about Automated determination of landslide locations after large trigger events: advantages and disadvantages compared to manual mapping.

The connections between river terraces and slope deposits as paleoclimate proxies: the Guadalaviar - Turia sequence (Eastern, Iberia Chain, Spain) (2021)
Journal Article

This study, focused on the well-exposed terrace deposits of the Guadalaviar and Turia rivers and associated slopes, provides a better understanding of the genetic connection between river-terrace sediments and slope accumulations in a setting influen... Read More about The connections between river terraces and slope deposits as paleoclimate proxies: the Guadalaviar - Turia sequence (Eastern, Iberia Chain, Spain).