Results 71 to 80 of about 12,061 (187)

Top-kriging - geostatistics on stream networks [PDF]

open access: yesHydrology 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  

Knowledge gap on the spatial structure of soil nitrogen mineralization variability—A systematic review

open access: yesAgricultural &Environmental Letters, Volume 11, Issue 2, December 2026.
Abstract Soil nitrogen (N) mineralization governs plant‐available N from soil organic matter and microbial turnover, and is typically estimated as potentially mineralizable nitrogen (PMN) via anaerobic incubations or as N0 and mineralization rate (k) via long‐term aerobic incubations.
Bibash Rokaya   +3 more
wiley   +1 more source

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

open access: yesRevista 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   +4 more
doaj  

Predictive Geometallurgy and Geostatistics Lab - Annual Report 2019

open access: yes, 2019
© Predictive Geometallurgy and Geostatistics Lab, Queen’s UniversityThe research developed during the last year is summarized in the Annual Report 2019. This report is made available to the general public for reference.
Cevik, S. Ilkay   +8 more
core  

Suite of Regional Seismic Velocity Models for the U.S. Atlantic and Gulf Coastal Plains (CPVMv2.0): Incorporating Epistemic Uncertainty in Velocity Models

open access: yesEarthquake Spectra, Volume 42, Issue 4, November 2026.
The U.S. Atlantic and Gulf Coastal Plain (CP) sediments are kilometers‐thick, low‐velocity deposits underlain by high‐velocity bedrock that create regional patterns of amplification and attenuation of ground motions. Capturing these effects is challenging because of the limited subsurface information available, particularly the shear wave velocity (VS)
Cassie Gann‐Phillips   +5 more
wiley   +1 more source

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

open access: yesRevista 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   +3 more
doaj   +1 more source

CyberShake NZ: Probabilistic Seismic Hazard Analysis in New Zealand Using Physics‐Based Ground‐Motion Simulations

open access: yesEarthquake Spectra, Volume 42, Issue 4, November 2026.
This study presents the computational components and workflow developed to conduct probabilistic seismic hazard analysis (PSHA) in New Zealand (NZ) using physics‐based ground‐motion simulations, referred to as “CyberShake NZ.” Semi‐automated procedures generate multiple realizations of kinematic rupture models, create rupture‐specific velocity models ...
Brendon A. Bradley   +5 more
wiley   +1 more source

Geostatistical analysis of the spatial distribution of mycotoxin concentration in bulk cereals [PDF]

open access: yes, 2009
Deoxynivalenol (DON) and ochratoxin A (OTA) in agricultural commodities present hazards to human and animal health. Bulk lots are routinely sampled for their presence, but it is widely acknowledged that designing sampling plans is particularly ...
Origgi, Simona   +6 more
core   +1 more source

Environmental Controls of Soil Inorganic and Organic Carbon Revealed Through Multivariate Analysis and Machine Learning in the Eastern Black Sea Region of Türkiye

open access: yesSoil Use and Management, Volume 42, Issue 4, October‐December 2026.
ABSTRACT Understanding the controls of soil organic carbon (SOC) and soil inorganic carbon (SIC) in humid mountainous landscapes is challenging because of strong topo‐climatic and land‐use heterogeneity. This study assessed SOC, SIC, soil pH and the SIC/SOC ratio across 5964 km2 in the Eastern Black Sea region of Türkiye using 1310 topsoil samples ...
Yavuz S. Turgut   +3 more
wiley   +1 more source

Terrain forms and spatial variability of soil properties in an area cultivatedwith citrus Formas do relevo e variabilidade espacial de propriedades do solo em área cultivada com citros

open access: yesEngenharia Agrícola, 2011
The technique of precision agriculture and soil-landscape allows delimiting areas for localized management, allowing a localized application of agricultural inputs and thereby may contribute to preservation of natural resources.
Marisol G. A. de Leão   +4 more
doaj   +1 more source

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