Results 21 to 30 of about 268,979 (263)

Machine learning-based estimation and clustering of statistics within stratigraphic models as exemplified in Denmark

GEUS Bulletin, 2023
Estimating a covariance model for kriging purposes is traditionally done using semivariogram analyses, where an empirical semivariogram is calculated, and a chosen semivariogram model, usually defined by a sill and a range, is fitted. We demonstrate that
Frederik Alexander Falk, Rasmus Bødker Madsen   +1 more
doaj   +1 more source

Experimental study on the effect of subsurface freshwater-saltwater mixing on the permeability of coral sand

地质科技通报, 2023
Objective The permeability of coral sand is the key factor determining the groundwater reserves of coral islands. For a long time, the research on the influence of different salinity filtrates on the permeability of coral sand during the formation of ...
Yinghao Li, Dongmei Han, Tianzheng Cao, Xiaowei Zhao, Xianfang Song, Dizhu Cai   +5 more
doaj   +1 more source

Characteristics and evolution of ground substrate in the black soil area of the residual veins of Changbai mountain

Frontiers in Earth Science
BackgroundThe study of the formation and evolution of black soils holds significant implications for the sustainable utilization of black soil resources and human societal development.
Zhansheng Chen, Zhansheng Chen, Xue Chen, Xue Chen, Yulei Tang, Yulei Tang, Dong Huo, Dong Huo, Xiaojun Ai, Xiaojun Ai, Guoshuai Geng, Guoshuai Geng   +11 more
doaj   +1 more source

Remote Sensing Analyses on Sentinel-2 Images: Looking for Roman Roads in Srem Region (Serbia)

Geosciences, 2019
The present research is part of the project “From Aquileia to Singidunum: reconstructing the paths of the Roman travelers—RecRoad”, developed at the Université Bordeaux Montaigne, thanks to a Marie Skłodowska-Curie fellowship.
Sara Zanni, Alessandro De Rosa
doaj   +1 more source

Landslide susceptibility assessment based on an interpretable coupled FR-RF model: A case study of Longyan City, Fujian Province, Southeast China

China Geology
: To enhance the prediction accuracy of landslides in in Longyan City, China, this study developed a methodology for geologic hazard susceptibility assessment based on a coupled model composed of a Geographic Information System (GIS) with integrated ...
Zong-yue Lu, Gen-yuan Liu, Xi-dong Zhao, Kang Sun, Yan-si Chen, Zhi-hong Song, Kai Xue, Ming-shan Yang   +7 more
doaj   +1 more source

Seamounts and related topographic highs – automated mapping in support of sustainable ocean management, Norway

Frontiers in Earth Science
Seamounts are a prime example of an ecologically relevant marine landform. They are internationally recognized by the OSPAR commission as a threatened and/or declining habitat yet estimates of their distribution in Norwegian waters are not adequately ...
Margaret F. J. Dolan, Lilja R. Bjarnadóttir   +1 more
doaj   +1 more source

Introducing INPOX: a method for informed point extraction from geological 2D surfaces exemplified on the Danish national hydrostratigraphic model

GEUS Bulletin
This study presents a probabilistic method for extracting informed points from geological surfaces, named INPOX. The method generates a probability map from the existing surface by calculating the Laplacian at each location and combining it with a user ...
Rasmus Bødker Madsen, Frederik Alexander Falk, Ingelise Møller, Anne-Sophie Høyer   +3 more
doaj   +1 more source

Study on the Characteristics of Atmospheric Turbulence Exchange in the Lower Reaches of the Lhasa River in the Eastern Qinghai-Xizang Plateau

Gaoyuan qixiang, 2022
Matter and energy between the land and atmosphere are transported with turbulent movement.Eddy covariance technology is an important way to evaluate atmospheric resources.It plays an important role in turbulence characteristics and accurate flux ...
Bin YANG, Qi YUAN, Changhai TAN, Gong ZHANG, Ning ZHENG, Lianglei GU   +5 more
doaj   +1 more source

Evaluation of the Utility of Baseline Echocardiogram in Patients With Standard Risk Precursor B‐Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
Abstract Background A routine baseline echocardiogram is often obtained prior to anthracycline administration in children with cancer. The utility of baseline echocardiogram is unclear in patients with standard risk B‐cell acute lymphoblastic leukemia (SR B‐ALL) as their anthracycline cumulative dose is low.
Ziyad Alrajhi, Alice Pozza, Luc Mertens, Adam Paul Yan, Sarah Alexander   +4 more
wiley   +1 more source

Archaeological Survey in the Zarabag Micro Oasis (South Uzbekistan), Preliminary Report on the Season 2015 [PDF]

Studia Hercynia, 2015
The present article summarizes the methods and results of archaeological research initiated in the autumn 2015 in the Zarabag Oasis (Sherabad District, South Uzbekistan). The main goal of the research was to obtain basic data on the settlement dynamics
Anna Augustinová, Ladislav Stančo, Shapulat Shaydullaev, Michal Mrva   +3 more
doaj