Results 51 to 60 of about 3,240 (143)

Geostatistical Prediction of Ocean Outfall Plume Characteristics Based on an Autonomous Underwater Vehicle

International Journal of Advanced Robotic Systems, 2013
Geostatistics has been successfully used to analyse and characterize the spatial variability of environmental properties. Besides providing estimated values at unsampled locations, geostatistics measures the accuracy of the estimate, which is a ...
Patrícia Alexandra Gregório Ramos
doaj   +1 more source

A Comparative Assessment of Geostatistical, Machine Learning, and Hybrid Approaches for Mapping Topsoil Organic Carbon Content

ISPRS International Journal of Geo-Information, 2019
Accurate digital soil mapping (DSM) of soil organic carbon (SOC) is still a challenging subject because of its spatial variability and dependency. This study is aimed at comparing six typical methods in three types of DSM techniques for SOC mapping in an
Lin Chen, Chunying Ren, Lin Li, Yeqiao Wang, Bai Zhang, Zongming Wang, Linfeng Li   +6 more
doaj   +1 more source

Landscape Fragmentation Driven by Land Use Change Dominates the Spatiotemporal Heterogeneity of Non‐Point Source Pollution Loads in Human‐Intensive Basins: A Case Study of the Dongjiang River Basin, China

Land Degradation &Development, Volume 37, Issue 14, Page 10440-10463, 30 August 2026.
ABSTRACT Landscape fragmentation may influence the spatial distribution and temporal variation of non‐point source (NPS) pollution by altering hydrological processes, pollutant transport pathways, and ecosystem service functions. However, under the combined effects of natural factors (e.g., precipitation, topography) and anthropogenic factors (e.g ...
Shilin Cai, Zixuan Qi, Pan Zhang, Hao Yang, Qian Tan, Yanpeng Cai   +5 more
wiley   +1 more source

Top-kriging - geostatistics on stream networks [PDF]

Hydrology and Earth System Sciences, 2006
We present Top-kriging, or topological kriging, as a method for estimating streamflow-related variables in ungauged catchments. It takes both the area and the nested nature of catchments into account.
J. O. Skøien, R. Merz, G. Blöschl
doaj  

Effects of Landscape Pattern on Spatial Distribution of Soil Organic Carbon Content in a Typical Lakeside Oasis

Land Degradation &Development, Volume 37, Issue 14, Page 10494-10512, 30 August 2026.
ABSTRACT Knowledge of the factors influencing the spatial distribution of farmland soil organic carbon (SOC) content contributes to a better understanding of human impacts on soil, which is crucial for improving soil quality and mitigating climate change.
Ke Quan, Xinguo Li, Xiangyu Ge
wiley   +1 more source

Geostatistical Modelling and Web‐Based Mapping of Malaria Risks Among Children Under Five Years in Nigeria: Evidence From the 2021 Nigeria Malaria Indicator Survey

Health Science Reports, Volume 9, Issue 8, August 2026.
ABSTRACT Background Malaria is a critical public health concern in Nigeria with the country bearing an uneven burden of the disease. In Nigeria, malaria is one of the main causes of child mortality and despite all efforts to reduce malaria mortality rates, the disease remains a major concern, notably among children under‐fives.
Justice Moses K. Aheto, Bakare Emmanuel Afolabi, Dolapo O. Oniyelu, Deborah O. Daniel, Steven I. Ikediashi, Oluwaseun A. Mogbojuri, Ronke D. Olorunfemi, Sodiq A. Orogun, Afeez Abidemi, Idowu I. Olasupo, Samuel A. Osikoya, Samuel A. Adeyemi, Hapiness O. Ismail, Isaac Bakare, Samson O. Olagbami, Dolapo A. Bakare, Baiyeri Samuel, Temitayo V. Irewole, Oluwafunmilayo O. Olapade, Oluwafolakemi Odunola, Oghenekevwe R. Ajewole, Joshua P. Ojo, Segun Oyedeji, Wisdom Takramah   +23 more
wiley   +1 more source

Scaling and Uncertainty in Soil Moisture Modelling: A Probabilistic Deep Learning Perspective

Hydrological Processes, Volume 40, Issue 8, August 2026.
A probabilistic Gaussian Mixture Long Short‐Term Memory framework is used to investigate soil moisture dynamics across the continental United States using meteorological forcings and physiographic attributes. Predictions are evaluated at unseen International Soil Moisture Network sites to ensure realistic regional transfer.
Balazs Bischof, Erwin Zehe, Ralf Loritz
wiley   +1 more source

Geoestatística no estudo de modelagem temporal da precipitação Geostatistics in the temporal modeling study of precipitation

Revista Brasileira de Engenharia Agrícola e Ambiental, 2011
A análise geoestatística é uma poderosa ferramenta utilizada em estudos de dependência espacial. No que tange à dependência temporal, poucas são as análises realizadas com essa metodologia.
André Q. de Almeida, Aristides Ribeiro, Yhasmin G. Paiva, Nilton Jr. L. Rascon, Evaldo P. Lima   +4 more
doaj  

COMBINING NEURAL NETWORKS AND GEOSTATISTICS FOR LANDSLIDE HAZARD ASSESSMENT OF SAN SALVADOR METROPOLITAN AREA, EL SALVADOR

Revista de Matemática: Teoría y Aplicaciones, 2017
This contribution describes the creation of a landslide hazard assessment model for San Salvador, a department in El Salvador. The analysis started with an aerial photointerpretation from Ministry of Environment and Natural Resources of El Salvador (MARN
Ricardo Ríos, Alexandre Ribó, Roberto Mejía, Giovanni Molina   +3 more
doaj   +1 more source

iS‐GNN: Interpolation of Crustal Stress Maps Using a Graph Neural Network Model

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Estimating the orientation of the maximum horizontal stress (SHmax) from sparse and unevenly distributed geophysical observations remains a persistent challenge in tectonic and geomechanical stress studies. Classical interpolation methods often neglect the multiscale tectonic–geological heterogeneity of the crust, leading to biased estimates ...
Kwame A. Gyamfi, Michele M. C. Carafa
wiley   +1 more source