Results 51 to 60 of about 3,459 (219)
Variogram analysis of stochastic processes
Журнал Белорусского государственного университета: Математика, информатика, 2018 Properties of the semivariogram of an intrinsically stationary continuous-time random process with finite second moment are investigated. A necessary and sufficient conditions for a continuous function to be semivariogram are found.
Tatsiana V. Tsekhavaya
doaj
Hydrological Processes, Volume 40, Issue 6, June 2026.We study evapotranspiration (ET), a key flux in the hydrological cycle, across heterogeneous tropical land‐cover mosaics in lowland Sumatra featuring secondary forest patches, oil palm plantations, and shrubland. We apply high‐resolution UAV thermography and an energy‐balance model to derive ET across three mosaic landscapes (Areas 1–3).
Medha Bulusu +4 more
wiley +1 more source
A Classification for a Geostatistical Index of Spatial Dependence
Revista Brasileira de Ciência do Solo: In geostatistical studies, spatial dependence can generally be described by means of the semivariogram or, in complementary form, with a single index followed by its categorization to classify the degree of such dependence.
Enio Júnior Seidel +1 more
doaj +1 more source
ISPRS International Journal of Geo-Information, 2018 Upscaling in situ soil moisture observations (ISMO) to multiscale pixel estimations with kriging is a key step in the comprehensive usage of ISMO and remote sensing (RS) soil moisture data. Scale effects occur and introduce uncertainties during upscaling
Xiaohu Zhang +5 more
doaj +1 more source
Spatial correlation of soybean yield with the chemical attributes of an Oxisol
Agronomía Colombiana, 2023 Soybean is currently the most cultivated oilseed in the world. The objective of this study was to analyze the chemical attributes of Oxisol correlated with soybean productivity.
Luiz Claudio Rodrigues +6 more
doaj +1 more source
Temperate lake heatwaves accelerate nonlinearly as timing synchronizes across a diverse landscape
Limnology and Oceanography, Volume 71, Issue 6, June 2026.Abstract Temperate lakes are experiencing intensifying heatwaves, or prolonged periods of anomalously warm water, with potentially severe ecological consequences. Previous studies have predominantly used linear trend analyses to understand heatwave dynamics, potentially masking temporal acceleration patterns and shifts in variance.
Christopher J. Sullivan, L. Zoe Almeida
wiley +1 more source
Study of the spatial variability of moisture and compaction in soils with different plant covers
Agronomía Colombiana, 2016 Soil is a dynamic system, with physical, chemical and biological properties that have high spatial variability, making necessary to use innovative methodologies to study this variability.
Lida Paola Pinzón-Gómez +2 more
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Scale-Dependent Spatial Ecology of Paleotropical Leaf Litter Ants (Hymenoptera: Formicidae)
Diversity, 2023 The grain for which an observer conducts a study is an important determinant of its outcome. Studies of ants have considered spatial grains spanning from single meters to entire forest ecosystems and found patterns related to nutrient availability, leaf ...
Lillian Germeroth +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
Semivariogram models for rice stem bug population densities estimated by ordinary kriging
Acta Scientiarum. Agronomy, 2020 Tibraca limbativentris is considered one of the main species of insect pests in irrigated rice. This species can be found in plants in the vegetative and reproductive stages.
Mauricio Paulo Batistella Pasini +3 more
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