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Keyphrases
United States
100%
Soil Moisture
100%
Gas pipeline Leakage
100%
Underground Gas pipeline
100%
Gas Concentration
50%
Soil Properties
50%
Soil Conditions
50%
Soil Samples
50%
Elevated Concentrations
33%
Lateral Diffusion
33%
Concentration Data
33%
Soil Texture
33%
Migration Distance
33%
Leakage Point
33%
Methane
16%
Statistical Analysis
16%
Sampling Methods
16%
Relative Contribution
16%
Spatial Dimension
16%
Drying Conditions
16%
Surface Coverage
16%
Lateral Migration
16%
Advection
16%
Water-induced
16%
Migration Behavior
16%
Sample Concentration
16%
Tortuosity
16%
Diffusion Concentration
16%
Site Characteristics
16%
Standardized Sampling
16%
CH4 Concentration
16%
Backfill
16%
Transport Data
16%
Moisture Permeability
16%
Gas Transport
16%
Soil Permeability
16%
Gas Leakage
16%
Leak Detection
16%
Soil Gas
16%
Gas Migration
16%
Excavation Site
16%
Natural Gas Migration
16%
Detection Survey
16%
Earth and Planetary Sciences
United States of America
100%
Methane
100%
Natural Gas
100%
Gas Pipeline
100%
Soil Property
42%
Soil Condition
42%
Transportation
28%
Soil Texture
28%
Geographic Location
14%
Soil Moisture
14%
Tortuosity
14%
Advection
14%
Backfill
14%
Excavation Site
14%
Engineering
Natural Gas Pipeline
100%
Methane
100%
United States of America
100%
Soil Moisture Content
71%
Soil Sample
42%
Soil Condition
42%
Gas Migration
28%
Dry Condition
14%
Spatial Dimension
14%
Natural Gas
14%
Gas Leakage
14%
Advection
14%