Preprints
There are 6224 Preprints listed.
Shyft and Rasputin: a toolbox for hydrologic simulations on triangular irregular networks
Published: 2023-01-07
Subjects: Hydrology
Terrain topography controls insolation variations at catchment scale. This effects are known to be important in cold and mountainous regions due to high diurnal and seasonal variability in incoming radiation. However, meteorological data in such areas lacks accuracy due to sparse station network and coarse re-analysis grids. Simulation tools that model hydrologic processes at local scales require [...]
Oracle bone script records explain the impact of climate extremes in ancient China
Published: 2023-01-06
Subjects: Physical Sciences and Mathematics, Social and Behavioral Sciences
Extreme climatic and weather events have raised increasing concerns in the context of climate change for causing severe disasters worldwide. As for ancient civilizations, however, possible causes of extreme events and their corresponding cultural responses have remained unclear. By quantitatively analyzing the weather information in ~55000 oracle bone script pieces, we constructed three ~200-year [...]
Assessing automated gap imputation of regional scale groundwater level data sets with typical gap patterns
Published: 2023-01-04
Subjects: Earth Sciences, Environmental Sciences, Physical Sciences and Mathematics
Large groundwater level (GWL) data sets are often patchy with hydrographs containing continuous gaps and irregular measurement frequencies. However, most statistical time series analyses require regular observations, thus hydrographs with larger gaps are routinely excluded from further analysis despite the loss of coverage and representativity of an initially large data set. Missing values can be [...]
Refining the Moho across the Australian continent
Published: 2023-01-04
Subjects: Physical Sciences and Mathematics
In recent years there has been a considerable expansion of deployments of portable seismic stations across Australia, which have been analysed by receiver function or autocorrelation methods to extract estimates of Moho depth. An ongoing program of full-crustal reflection profiles has now provided more than 25,000 km of reflection transects that have been interpreted for Moho structure. The Moho [...]
Who are the hyper prolific authors in environmental sciences?
Published: 2023-01-01
Subjects: Environmental Studies, Library and Information Science, Research Methods in Life Sciences, Social and Behavioral Sciences
Hyper prolific scientists are individuals who produce an exceptionally large number of scientific papers, often at a rate that is much higher than their peers. While productivity is generally a positive attribute in the scientific community, hyper prolific scientists may raise concerns about the quality and impact of their research. It is important to carefully evaluate the work of hyper prolific [...]
A Scenario-Neutral Approach to Climate Change in Glacier Mass Balance Modelling
Published: 2022-12-31
Subjects: Physical Sciences and Mathematics
In hydrology and water resources management, scenario-neutral methods are already common, mostly used to rapidly compare system responses to plausible changes in climate. As a first application in glaciology, a scenario-neutral approach, using climatic mass balance as a system response, is applied to four glaciers: Hintereisferner (AT), Peyto Glacier (CA), Austre Brøggerbreen (NO) and Abramov [...]
Blockchain Applications and Opportunities for Water Resources and Hydrology: A Systematic Review
Published: 2022-12-31
Subjects: Databases and Information Systems, Hydrology
Although blockchain technology was first applied for peer-to-peer financial transactions, it has been used for the digitalization of physical asset management and data management processes in many areas in the industry and academia, including the water domain. Its potential as an immutable data storage system and smart contract integration has provided a plethora of use cases and utility in the [...]
High-resolution grids of daily air temperature for Peru - the new PISCOt v1.2 dataset
Published: 2022-12-30
Subjects: Physical Sciences and Mathematics
Gridded high-resolution climate datasets are increasingly important for a wide range of modelling applications. Here we present PISCOt (v1.2), a novel high spatial resolution (0.01°) dataset of daily air temperature for entire Peru (1981-2020). The dataset development involves four main steps: i) quality control; ii) gap-filling; iii) homogenisation of weather stations, and iv) spatial [...]
Analysis of nationwide groundwater monitoring networks using lumped-parameter models
Published: 2022-12-30
Subjects: Earth Sciences, Environmental Sciences, Other Civil and Environmental Engineering
Many countries maintain nationwide groundwater networks to monitor the status of their groundwater resources. For effective groundwater resource management, it is fundamental to understand the groundwater dynamics measured in the individual monitoring wells. Nationwide monitoring networks typically cover multiple aquifer systems with different degrees of environmental complexity. The analysis of [...]
Erosion rate maps highlight spatio-temporal patterns of uplift and quantify sediment export of the Northern Andes
Published: 2022-12-30
Subjects: Physical Sciences and Mathematics
Erosion rates are widely used to assess tectonic uplift and sediment export from mountain ranges. However, the scarcity of erosion rate measurements often hinders detailed tectonic interpretations. Here, we present 25 new cosmogenic nuclide-derived erosion rates from the Northern Andes of Colombia to study spatio-temporal patterns of uplift along the Central and Eastern Cordillera. Specifically, [...]
A thermomechanical model for argillaceous hard soils - weak rocks: application to THM simulation of deep excavations in claystone
Published: 2022-12-30
Subjects: Engineering
The paper presents the enhancement of an existing constitutive model for argillaceous hard soils-weak rocks for non-isothermal conditions, to be used in coupled thermo-hydro-mechanical (THM) simulations of underground excavations subjected to temperature variations within the context of deep geological nuclear waste disposal. The proposed thermo-elastoplastic extension accounts for the effect [...]
Information Content of Hydrologic Data across Space: Streamflow Predictions using Machine Learning
Published: 2022-12-29
Subjects: Engineering, Physical Sciences and Mathematics
This study aimed to assess the usefulness of data from donor watersheds to predict streamflow in parent watersheds. For this purpose, Long-Short Memory Network (LSTM) is used as an information extraction algorithm. Data from a total of 434 watersheds were used in this study. Out of these 434 watersheds, 57 watersheds were selected as the parent watersheds. These 57 watersheds were those where [...]
Deep Learning Models for River Classification at Sub-Meter Resolutions from Multispectral and Panchromatic Commercial Satellite Imagery
Published: 2022-12-28
Subjects: Physical Sciences and Mathematics
Remote sensing of the Earth's surface water is critical in a wide range of environmental studies, from evaluating the societal impacts of seasonal droughts and floods to the large-scale implications of climate change. Consequently, a large literature exists on the classification of water from satellite imagery. Yet, previous methods have been limited by 1) the spatial resolution of public [...]
Two sources of uncertainty in estimating tephra volumes from isopachs: perspectives and quantification
Published: 2022-12-27
Subjects: Earth Sciences
Calculating the volume of tephra erupted is important for estimating eruption intensity and magnitude. Traditionally, tephra volumes are estimated by integrating the area under curves fit to the square root of hand-drawn isopach areas. Previous studies have attempted to quantify the uncertainty in this approach, but not all sources of uncertainty have been well-analyzed or addressed. In this [...]
Potential Effects of Climate Change on Black Sea Water Temperatures
Published: 2022-12-27
Subjects: Oceanography and Atmospheric Sciences and Meteorology
There is a consensus that the Black Sea is affected by climate change in many ways. The Black Sea Physical Reanalysis system and Argo measurements are used for analyzing not only sea surface temperature (SST), but also the entire Black Sea over the period from 1993 to 2019. Linear regression and Mann-Kendall tests are used for detecting trends and the Pearson-correlation coefficient is used for [...]