OOIR: Observatory of International Research

Papers

(The TQCC of Vadose Zone Journal is 5. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-08-01 to 2026-08-01.)

Article	Citations
Thanks to Reviewers, Vadose Zone Journal , 2023	96
Thanks to Reviewers, Vadose Zone Journal , 2022	62
Soil hydraulic property maps for the contiguous United States at 100‐m resolution and seven depths: Code design and preliminary results	47
Development of a vadose zone advanced monitoring system: Tools to assess groundwater vulnerability	39
Extending the measurement range of the simplified evaporation method using humidity sensors	30
Contactless estimation of soil moisture using leaky Rayleigh waves and a fully convolutional network	28
The plant‐available water associated with the four critical soil suctions vary depending on the different soil textures	23
Determination of a pedotransfer function for specific air–water interfacial area in sandy soils: A pore network‐informed multigene genetic programming approach	21
Application of cosmic‐ray neutron probes for measuring soil moisture in rocky areas of the Taihang Mountains, North China	20
Water vapor transport through bioenergy grass residues and its effects on soil water evaporation	19
	19
Microbial O ₂ consumption as a function of pore structure in soils of sorghum, switchgrass, and prairie vegetation systems	19
Using Sentinel‐1 and Sentinel‐2 to assess the role of soil water content and vegetation cover in mitigating wind erosion in cultivated organic soil	18
Disentangling slope‐scale spatial variability of saturated hydraulic conductivity in the black soil region of northeast China using noise‐assisted multivariate empirical mode decomposition	18
Algebraic expressions for convective solute transport in a homogeneous soil below a surface barrier	17
Validating coupled flow theory for bare‐soil evaporation under different boundary conditions	17
Issue Information	16
Cover Image, Volume 22, Issue 3	16
	15
Field evaluation of semi‐automated moisture estimation from geophysics using machine learning	14
An improved model and field calibration technique for measuring liquid water content in unfrozen and frozen soils with dielectric probes	14
Interpretation of large‐scale, long‐term electrical geophysical monitoring guided by a process simulation	13
Network‐wide assessment of soil water content calibration and sensitivity to biomass proxies using cosmic‐ray neutron sensing in the Roaring Fork Basin, Colorado	13
Applying minirhizotrons to observe spatiotemporal variations in rooting depth and distribution in agroecosystems to improve the performance of hydrological models	12
Soil carbon determination for long‐term monitoring revisited using thermo‐gravimetric analysis	12

A closed‐form equation linking soil moisture and evaporation	12
Dimensionality and scales of preferential flow in soils of Shale Hills hillslope simulated using HYDRUS	11
The osmotic potential of soil solutions in salt tolerance studies: Following M. Th. van Genuchten's innovation	11
Characterizing the topographic index as a tool to represent spatial soil moisture: The effect of classification approach, digital elevation model type, and resolution	11
Methods for downhole soil water sensor calibration—Complications of bulk density and water content variations	11
Validation of downscaled 1‐km SMOS and SMAP soil moisture data in 2010–2021	11
Analyzing dual porosity in soil hydraulic properties using soil databases for pedotransfer function development	10
Neutron imaging of exchange flow between biopore and matrix for Bt versus C horizons	10
	10
Understanding the influence of Malta litho‐structural features on the dynamics of nitrate transport in the vadose zone	10
Frequency domain‐based analytical solutions for one‐dimensional soil water flow in layered soils	10
National Oceanic and Atmospheric Administration Soil Moisture Operational Product System: An overview and data assimilation applications	9
Issue Information	9
Organic carbon stocks in weathered bedrock—Establishing the soil parent material as a new horizon in soil carbon research	9
	9
Toward soil property‐driven identification of peat, limnic, and mineral horizons in Eastern Canada Histosols	9
The value of long‐term in situ soil moisture and snowpack monitoring: Laying the foundation for future studies in the Upper Missouri River Basin	9
Nitrate contamination of urban groundwater and heavy rainfall: Observations from Dakar, Senegal	9
Vadose Zone Journal Annual Report, 2023	9
A novel method to assess the infiltration and filtration functions of urban soils	9
A formulation for assessing the risk of anthropogenic drought based on drought characteristics and socioeconomic and physical factors	9
Cover Image, Volume 22, Issue 2	9
Publisher's Report 2022: Vadose Zone Journal	9
Effects of dynamic capillarity on the shear strength of sandy soils during transient two‐phase flow: Insights from non‐equilibrium triaxial simulations	8
A new exponential model for predicting soil gas diffusivity with varying degree of saturation	8
Colloidal transport of heavy metals in low‐advective‐velocity environmental systems: Reactive transport model on biogeochemical and hydrodynamic impacts	8
Self‐potential signals of soil columns experiencing evaporation and transpiration	8
Emerging issues and research opportunities in vadose zone processes	8
Temporal covariance of spatial soil moisture variations: A mechanistic error modeling approach	8
Determining groundwater recharge for quantifying PFAS mass discharge from unsaturated source zones	8
Averaging or adding domain conductivities to calculate the unsaturated soil hydraulic conductivity	8
	8
Soil hydraulic conductivity in the state of nonequilibrium	8
	8
Bromide reactivity in topsoil: Implications for use as a “conservative” tracer in assessing quantity and quality of water	8
Gaia: Complex systems prediction for time to adapt to climate shocks	8
Investigation and quantification of hydraulic gradient and precipitation effect on flow and solute transport in the capillary fringe and saturated zone	7
A novel design for continuous measurement of CO ₂ from deep remineralization of petrogenic organic carbon	7
Elucidating the role of water films on solute diffusion in unsaturated porous media by improved pore‐scale modeling	7
Issue Information	7
Continuous data assimilation for the Richards equation of unsaturated flow: A computational study	7
The time validity of Philip's two‐term infiltration equation: An elusive theoretical quantity?	7
Vadose Zone Journal Annual Report, 2025	7
Plant growth‐promoting rhizobacteria mediate soil hydro‐physical properties: An investigation with Bacillus subtilis and its mutants	6
Effects of water table fluctuations on naphthalene degradation: Soil column experiment and modeling	6
	6
Correction to “Effects of soil profile configuration‐based weathered coal residue addition on soil water infiltration and evaporation”	6
Hydraulic characteristics and model evaluation for silty sand affected by salt solution concentration	6
Soil moisture forecasting in wireless sensor networks via spatiotemporal graph convolutional networks	6
Cover Image, Volume 21, Issue 6	6

Temporal scale‐dependent relationships between soil moisture and temperature unveiled by Ensemble Empirical Mode Decomposition in an irrigated field	5
The PDI model system for parameterizing soil hydraulic properties	5
	5
Modeling nitrogen loss using stable isotopes in mountainous watersheds of the Bohemian Slavkov Forest (NW Czech Republic)	5
	5
Seasonality and evaporation of water resources in Reynolds Creek Experimental Watershed and Critical Zone Observatory, Southwestern Idaho, USA	5
Heat transport from atmosphere through the subsurface to drinking‐water supply pipes	5
The optimality‐based active region model for fingering flow in the vadose zone: Theory, model validation, and generalization	5
Subsurface thermal loading simulations to assess the viability of waste canister disposal in the Negev Desert, Israel	5
	5
Linking horizontal crosshole GPR variability with root image information for maize crops	5
How solid–liquid adsorption affects the liquid–vapor interface in pores	5
Unraveling soil moisture dynamics with dual‐scale interpretable machine learning: Cover cropping and irrigation insights in semi‐arid agriculture	5