Results 81 to 90 of about 19,252 (217)

Improving Coffee Yield Interpolation in the Presence of Outliers Using Multivariate Geostatistics and Satellite Data

open access: yesAgriEngineering
Precision 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

Modelling infiltration and geostatistical analysis of spatial variability of sorptivity and transmissivity in a flood spreading area

open access: yesSpanish 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

Spatial characteristics of thunderstorm rainfall fields and their relation to runoff [PDF]

open access: yes, 2003
The main aim of this study was to assess the ability of simple geometric measures of thunderstorm rainfall in explaining the runoff response from the watershed. For calculation of storm geometric properties (e.g.
Goodrich, DC   +3 more
core   +1 more source

Sensitivity Analysis: A Practical Guide to Teaching

open access: yesRisk Analysis, Volume 46, Issue 5, May 2026.
ABSTRACT Sensitivity analysis is the process of attributing the variability of model outputs to uncertainties in input parameters and assumptions. Why is this technique important? Which methods and concepts should be prioritized in teaching it? And what instructional strategies are best suited to different audiences?
Stefano Tarantola   +6 more
wiley   +1 more source

APPLICATION OF GEOSTATISTICS FOR ESTIMATING THE DISTRIBUTION OF ONE OF THE BAUXITE DEPOSIT RESERVE IN THE REPUBLIC OF GUINEA

open access: yesИзвестия 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

Converting NAD83 GPS heights into NAVD88 elevations with LVGEOID, a hybrid geoid height model for the Long Valley volcanic region, California [PDF]

open access: yes, 2008
A GPS survey of leveling benchmarks done in Long Valley Caldera in 1999 showed that the application of the National Geodetic Survey (NGS) geoid model GEOID99 to tie GPS heights to historical leveling measurements would significantly underestimate the
BATTAGLIA, MAURIZIO   +4 more
core  

Airborne Radar Reveals Area‐Wide Decadal Increase of Surface Mass Balance on the Plateau in Dronning Maud Land, East Antarctica

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Projections of Antarctica's sea‐level contribution depend on future changes in surface mass balance (SMB), yet it remains uncertain whether climate change has already impacted SMB on the East Antarctic Plateau, given diverging trends in prior studies.
Alexandra M. Zuhr   +7 more
wiley   +1 more source

Ice‐Dynamic Constraints on Glacier Climatic Mass Balance Using Inverse Techniques

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Accurate glacier climatic mass balance (CMB) modeling relies on pertinent atmospheric data for forcing and in situ stake measurements for calibration, which are often sparse or unavailable in remote high‐mountain regions. This study presents a proof‐of‐concept for estimating glacier‐wide CMB fields by combining mass conservation and ice ...
Anna Zöller   +3 more
wiley   +1 more source

Evaluation of geostatistical method and hybrid artificial neural network with imperialist competitive algorithm for predicting distribution pattern of Tetranychus urticae (Acari: Tetranychidae) in cucumber field of Behbahan, Iran

open access: yesPersian Journal of Acarology, 2017
In this study, the statistical methods and artificial neural network (ANN) were used to estimate the spatial distribution of Tetranychus urticae in cucumber field of Behbahan, Iran.
Alireza Shabaninejad   +2 more
doaj   +1 more source

Ordinary kriging for on-demand average wind interpolation of in-situ wind sensor data

open access: yes, 2009
We have developed a domain agnostic ordinary kriging algorithm accessible via a standards-based service-oriented architecture for sensor networks. We exploit the Open Geospatial Consortium (OGC) Sensor Web Enablement (SWE) standards.
Middleton, S.E., Veres, G., Zlatev, Z.
core  

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