Mark Engle

University of Texas at El Paso

Subject Areas: Hydrogeology and aqueous geochemistry

 Recent Activity

ABSTRACT:

Ground penetrating radar and corresponding global positioning system location data collected along two north-south transects at the Piedmont site at Jornada Experimental Range, New Mexico. GPR data were collected using a 250 MHz Noggin SmartCart® GPR (Sensors and Software) coupled to a Real-Time Kinematic (RTK) Global Positioning System (GPS) using a Topcon GB-1000 receiver. GPR acquisition used a transmitter and receiver signal that collected data in eight stacks, every 0.25 m. Values for v were determined for each measurement period by applying dielectric permittivity data from Campbell Scientific TDR soil sensors (models CS650/CS655) at depths of 20 and 32 cm. Files with prefix "LINE0" refer to measurement 21-07-GPR along transect A-A', which was collected on July 10, 2021. Files with prefix "LINE1" refer to measurement 21-09-GPR along transect A-A", which was collected on September 12, 2021. Files with prefix "LINE2" refer to measurement 22-04-GPR along transect B-B', which was collected on April 15, 2022.

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ABSTRACT:

This dataset contains time series 30-minute soil moisture (volumetric water content), temperature, electrical conductivity, and permittivity data from soil moisture sensors deployed at the Piedmont site at Jornada Experimental Range. The data span rom January 1, 2021 through July 31, 2024. Volumetric water content data were converted from dielectric permittivity using an empirical third order polynomial calibration developed using soil from the study site. Data for sensors deeper than 25 cm were were adjusted to conditions at 25 oC. Data are arranged in separate file for each array and datalogger. Data were collected using Campbell Scientific CS 655/CS650 soil moisture sensors in conjunction with Campbell Scientific dataloggers.

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ABSTRACT:

Borehole geophysical data (natural gamma, induced electrical conductivity, magnetic susceptibility, fluid temperature, fluid conductivity) from depths of 301.450 to 2.30 feet below top of casing of dryland critical zone well DCZN-2A, into the vadaose zone and Mesilla Bolson aquifer, below the Red Lake Playa and the Jornada Experimental Range, New Mexico. Borehole logging performed by Bill Smith (Granite Geophysical) and Christian Leach (University of Texas at El Paso). Data is in standard LAS file format. Water level present at a depth of ~70m below top of casing during measurement.

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ABSTRACT:

Borehole geophysical data (natural gamma, induced electrical conductivity, magnetic susceptibility, fluid temperature, fluid conductivity) from depths of 154.700 to 0.600 feet below top of well casing of dryland critical zone well DCZN-1A, into the Rio Grande Alluvium Aquifer and the Hueco Bolson Aquifer. Borehole logging performed by Bill Smith (Granite Geophysical) and Christian Leach (University of Texas at El Paso). Data is in standard LAS file format. Water level present at a depth of 6.5-7.0 feet below top of casing during measurement.

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ABSTRACT:

Falling head double ring infiltrometer test data for sites on the Jornada I and Organ surfaces from the Dryland Critical Zone's Piedmont site and from the Red Lake Playa, both in Jornada Experimental Range, New Mexico. Data were collected between September, 2021 and August, 2022 using a portable double ring infiltrometer (6" & 12" X 4" Double Infiltration Ring from AMS, Inc.). Infiltration patterns exhibited near-linear behavior almost immediately after tests began, so linear rates in units of centimeter per second are reported.

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ABSTRACT:

Falling head double ring infiltrometer test data for sites on the Jornada I and Organ surfaces from the Dryland Critical Zone's Piedmont site and from the Red Lake Playa, both in Jornada Experimental Range, New Mexico. Data were collected between September, 2021 and August, 2022 using a portable double ring infiltrometer (6" & 12" X 4" Double Infiltration Ring from AMS, Inc.). Infiltration patterns exhibited near-linear behavior almost immediately after tests began, so linear rates in units of centimeter per second are reported.

Show More
Resource Resource

ABSTRACT:

Borehole geophysical data (natural gamma, induced electrical conductivity, magnetic susceptibility, fluid temperature, fluid conductivity) from depths of 154.700 to 0.600 feet below top of well casing of dryland critical zone well DCZN-1A, into the Rio Grande Alluvium Aquifer and the Hueco Bolson Aquifer. Borehole logging performed by Bill Smith (Granite Geophysical) and Christian Leach (University of Texas at El Paso). Data is in standard LAS file format. Water level present at a depth of 6.5-7.0 feet below top of casing during measurement.

Show More
Resource Resource

ABSTRACT:

Borehole geophysical data (natural gamma, induced electrical conductivity, magnetic susceptibility, fluid temperature, fluid conductivity) from depths of 301.450 to 2.30 feet below top of casing of dryland critical zone well DCZN-2A, into the vadaose zone and Mesilla Bolson aquifer, below the Red Lake Playa and the Jornada Experimental Range, New Mexico. Borehole logging performed by Bill Smith (Granite Geophysical) and Christian Leach (University of Texas at El Paso). Data is in standard LAS file format. Water level present at a depth of ~70m below top of casing during measurement.

Show More
Resource Resource

ABSTRACT:

This dataset contains time series 30-minute soil moisture (volumetric water content), temperature, electrical conductivity, and permittivity data from soil moisture sensors deployed at the Piedmont site at Jornada Experimental Range. The data span rom January 1, 2021 through July 31, 2024. Volumetric water content data were converted from dielectric permittivity using an empirical third order polynomial calibration developed using soil from the study site. Data for sensors deeper than 25 cm were were adjusted to conditions at 25 oC. Data are arranged in separate file for each array and datalogger. Data were collected using Campbell Scientific CS 655/CS650 soil moisture sensors in conjunction with Campbell Scientific dataloggers.

Show More
Resource Resource

ABSTRACT:

Ground penetrating radar and corresponding global positioning system location data collected along two north-south transects at the Piedmont site at Jornada Experimental Range, New Mexico. GPR data were collected using a 250 MHz Noggin SmartCart® GPR (Sensors and Software) coupled to a Real-Time Kinematic (RTK) Global Positioning System (GPS) using a Topcon GB-1000 receiver. GPR acquisition used a transmitter and receiver signal that collected data in eight stacks, every 0.25 m. Values for v were determined for each measurement period by applying dielectric permittivity data from Campbell Scientific TDR soil sensors (models CS650/CS655) at depths of 20 and 32 cm. Files with prefix "LINE0" refer to measurement 21-07-GPR along transect A-A', which was collected on July 10, 2021. Files with prefix "LINE1" refer to measurement 21-09-GPR along transect A-A", which was collected on September 12, 2021. Files with prefix "LINE2" refer to measurement 22-04-GPR along transect B-B', which was collected on April 15, 2022.

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