Results 81 to 90 of about 6,324 (226)
Further Bounds for the Estimation Error Variance of a Continuous Stream with Stationary Variogram
, 1999 In this paper we establish an upper bound for the estimation error variance of a continuous stream with a stationary variogram V which is assumed to be of r-Hölder type (Lipschitzian) on [-d, d]
Dragomir, Sever S +2 more
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Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 6, June 2026.Abstract Soil organic carbon (SOC) storage represents one of the most critical ecosystem services provided by soils, yet scientific assessments frequently focus on surface layers, overlooking deeper horizons. In this study, we investigated SOC stocks and spatial patterns of soil δ13C across three contrasting land use and land cover (LULC) types in ...
Lucas F. Alexandre +7 more
wiley +1 more source
A Note on Bounds for the Estimation Error Variance of a Continuous Stream With Stationary Variogram
, 1998 In this paper, by the use of an Ostrowski type integral inequality for double integrals, we establish an upper bound for the estimation error variance of a continuous stream with stationary ...
Dragomir, Sever S, Barnett, Neil S
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Remote Sensing, 2019 Ontology-driven Geographic Object-Based Image Analysis (O-GEOBIA) contributes to the identification of meaningful objects. In fusing data from multiple sensors, the number of feature variables is increased and object identification becomes a challenging ...
Sachit Rajbhandari +4 more
doaj +1 more source
Bayesian Full‐Waveform Monitoring of CO2 Storage With Fluid‐Flow Priors via Generative Modeling
Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.Abstract Quantitative monitoring of subsurface changes is essential for ensuring the safety of geological CO2 ${\text{CO}}_{2}$ sequestration. Full‐waveform monitoring (FWM) can resolve these changes at high spatial resolution, but conventional deterministic inversion lacks uncertainty quantification and incorporates only limited prior information ...
Haipeng Li +3 more
wiley +1 more source
AgriEngineeringPrecision agriculture for coffee production requires spatial knowledge of crop yield. However, difficulties in implementation lie in low-sampled areas. In addition, the asynchronicity of this crop adds complexity to the modeling.
César de Oliveira Ferreira Silva +3 more
doaj +1 more source
Spanish Journal of Agricultural Research, 2014 Knowledge of infiltration characteristics is useful in hydrological studies of agricultural soils. Soil hydraulic parameters such as steady infiltration rate, sorptivity, and transmissivity can exhibit appreciable spatial variability. The main objectives
Fereshte Haghighi Fashi +2 more
doaj +1 more source
Water Resources Research, Volume 62, Issue 6, June 2026.Abstract Remote sensing imagery is widely utilized for mapping flood extents. However, sensor limitations and environmental conditions often reduce mapping capability. Factors such as obscuring clouds, terrain shadows, and dense tree canopies frequently lead to significant information gaps and omission errors, particularly in forests and urban areas ...
D. Tian +4 more
wiley +1 more source
THE EFFECT OF THE VARIOGRAM ESTIMATION ON PIT-LIMIT DESIGN
, 1992 In transitional mineralization, the sill of the underlying variogram is relatively easily estimated, but the estimation of the nugget effect may be more difficult.
YALCIN, E, UNAL, A
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Известия высших учебных заведений: Геология и разведка, 2015 To estimate the content of Al2O3 in the block exploring a bauxite depositsite of Sangaredi in the Republic of Guinea (West Africa), one of geostatistics methods, discrete kriging, was applied.
I. A. Maraev
doaj +1 more source