About the dataset

This PF database is a preferential flow database that is generated by using NEON soil moisture and precipitation.

Metadata for PF base file

File format: XXXX_PF_database_00Y where xxxx is the NEON site name and y is the soil profile number ranging from 1 to 5.

Event data fields * stormStartTime [UTC] : Precipitation event starts.

• stormEndTime [UTC] : Precipitation event ends.

• stormStartValue [mm/10min] : The precipitation at the time step, in which precipitation events starts.

• stormEndValue [mm/10min] : The precipitation at the time step, in which precipitation events ends.

• stormSum [mm] : Sum of precipitation of the precipitation event.

• stormPeakIntensity [mm/10min] : The max precipitation for a given precipitation event.

• stormPeakTime [UTC] : The time, in which stormPeakIntensity is observed.

• stormDuration [hours] : The duration of the precipitation events.

• smReponseType_50X [-] : If the sensor responded to a precipitation event. X represent the sensor position from 1 - 8 in most of the case.

• smOnsetTime_50X [UTC] : Soil moisture onset time.

• smPeakTime_50X [UTC] : Soil moisture peak time.

• smAtOnset_50X [v/v] : Soil moisture value at the onset.

• smAtPeak_50X [v/v] : Soil moisture value at the peak.

• smBeforePrecip_50X [v/v] : Soil moisture value right before precipitation start.

• flowTypes [-] : Type of flows. notApplicable = less than 2 sensors are working. nonSequentialFlow = at least 2 sensors responded to the precipitation event and the shallower sensor responses later than the deeper sensor. SequentialFlow = at least 2 sensors responded to the precipitation event and the shallower sensor responded earlier than the deeper sensor.

• flowPosition [-] : record which two sensors are involved in preferential flow. [501Xvs50Y_PF_50Y] = nonsequantial flow while comparing two sensors. The deeper sensor of each combo is recorded.

• velocity_computed_50X [cm/day]: The log scale computed flow velocity.

• num_velocity_50X_median [cm/day] : The median of matrix flow velocity by a model in log scale.

• num_velocity_50X_95th [cm/day] : The 95th percentile of matrix flow velocity by a model in log scale.

• num_velocity_50X_99th [cm/day] : The 99th percentile of matrix flow velocity by a model in log scale.

• ksat_50X [cm/d]: The max of depth weighted Ksat from Rosetta3 model across all pits at a given depth in log scale.

• ksat_low_50X [cm/d]: The max depth weighted Ksat - Ksat S.d. from Rosetta3 model across all pits at a given depth in log scale.

• ksat_high_50X [cm/d]: The max depth weighted Ksat + Ksat S.d. from Rosetta3 model across all pits at a given depth in log scale.

• ksat_std_median_50X [cm/d]: The median depth weighted Ksat from Rosetta3 model across all pits at a given depth in log scale.

• ksat_std_upper_50X [cm/d]: The median depth weighted Ksat + S.D of depth weighted Ksat from Rosetta3 model across all pits at a given depth in log scale.

• PF_velocity_metric_50X [-] : Compared the velocity_computed_50X to ksat_50X. PF is identified (assigned as True) if velocity_computed_50X is greater than ksat_50X.

• PF_ksat_metric_low_50X [-] : Compared the velocity_computed_50X to ksat_low_50X. PF is identified (assigned as True) if velocity_computed_50X is greater than PF_ksat_metric_low_50X.

• PF_ksat_metric_high_50X [-] : Compared the velocity_computed_50X to ksat_high_50X. PF is identified (assigned as True) if velocity_computed_50X is greater than ksat_high_50X.

• PF_ksat_metric_std_median_50X [-] : Compared the velocity_computed_50X to ksat_std_median_50X. PF is identified (assigned as True) if velocity_computed_50X is greater than ksat_std_median_50X.

• PF_ksat_metric_std_upper_50X [-] : Compared the velocity_computed_50X to ksat_std_upper_50X. PF is identified (assigned as True) if velocity_computed_50X is greater than ksat_std_upper_50X.

• PF_ksat_metric_50X [-] : Compared the velocity_computed_50X to num_velocity_50X_99th. PF is identified (assigned as True) if velocity_computed_50X is greater than num_velocity_50X_99th.

• num_velocity_name_50X [-] : The depth name where the velocity_computed_50X compares to.

• sensor_nake_name_50X [-]:The nake name of the sensor format as soil plot name_sensor position i.e., 001_501 represent the top sensor of the first soil plot/profile at a site.

Other data fields

• total_sand_50X [%]: The weighted sand percentage based on soil information for megapits and distributed pits.

• total_silt_50X [%]: The weighted silt percentage based on soil information for megapits and distributed pits.

• total_clay_50X [%]: The weighted clay percentage based on soil information for megapits and distributed pits.

• total_porosity_50X [-]:The weighted porosity based on soil information for megapits and distributed pits.

• total_eff_porosity_50X [-]:The weighted effective porosity based on soil information for megapits and distributed pits.

• total_root_density_50X [$g/cm^3$]:The weighted root density based on root sampling for megapits and distributed pits.

• latitude [-]: site latitude.

• longitude [-]: sitle longitude.

• aridity [-]: The aridity index at the site as PET/P.

• MAT [°C]: Mean annual temperature of the site.

• MAP [mm]: Mean annual precipitation of the site.

• field_utm_northing [-]: northness of the site.

• field_utm_easting [-]: eastness of the site.

• field_soil_subgroup[-]: the soil types.

Authors

• Bonan Li - data collection, methology, coding
• Matthias Sprenger - discussion and advisory
• Tianfang Xu - discussion
• John Nimmo - discussion
• Hoori Ajami - discussion
• Ryoko Araki - discussion
• Octavia Crompton - discussion
• Daniel Gimenez - provided soil matrix flow simulation, discussion
• Jannis Groh - discussion
• Daniel Hirmas - methology, provided soil data, and discussion
• Nitin Singh - discussion
• Briana Wyatt - discussion
• Inge Wiekenkamp - discussion
• Pamela Sullivan1 - discussion and advisory
• Matthew T. Amato - provided soil matrix flow simulation