Brian Straight

University of Colorado at Boulder

 Recent Activity

ABSTRACT:

Residual pit lakes from mining are often dangerous to sample for water quality. Thus, pit lakes may be rarely (or never) sampled. This study developed new technology in which water-sampling devices mounted on an unmanned aerial vehicle (UAV) were used to sample five pit lakes in Nevada, USA during one week in 2017. A 1.2L Niskin sample bottle was attached to a DJI Matrice 600 to retrieve water samples at depth and the surface. Flight times and sample depths for the Dexter pit lake are presented here. This approach can potentially incorporate the use of additional multi-parameter probes: pH, oxygen concentration, turbidity and chlorophyll. Some limitations of this UAV water sampling methodology are battery duration, weather conditions and payload capacity.

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ABSTRACT:

Residual pit lakes from mining are often dangerous to sample for water quality. Thus, pit lakes may be rarely (or never) sampled. This study developed new technology in which water-sampling devices mounted on an unmanned aerial vehicle (UAV) were used to sample five pit lakes in Nevada, USA during one week in 2017. A 1.2L Niskin sample bottle was attached to a DJI Matrice 600 to retrieve water samples at depth and the surface. Flight times and sample depths for the Clipper pit lake are presented here. This approach can potentially incorporate the use of additional multi-parameter probes: pH, oxygen concentration, turbidity and chlorophyll. Some limitations of this UAV water sampling methodology are battery duration, weather conditions and payload capacity.

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ABSTRACT:

Residual pit lakes from mining are often dangerous to sample for water quality. Thus, pit lakes may be rarely (or never) sampled. This study developed new technology in which water-sampling devices mounted on an unmanned aerial vehicle (UAV) were used to sample five pit lakes in Nevada, USA during one week in 2017. Three of these pit lakes are located on public lands and two are located on private land owned by mining entities. A profile was taken of the Dexter pit lake with a conductivity, temperature and depth profiler on August 3, 2017. This approach can potentially incorporate the use of additional multi-parameter probes: pH, oxygen concentration, turbidity and chlorophyll. Some limitations of this UAV water sampling methodology are battery duration, weather conditions and payload capacity.

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ABSTRACT:

Residual pit lakes from mining are often dangerous to sample for water quality. Thus, pit lakes may be rarely (or never) sampled. This study developed new technology in which water-sampling devices mounted on an unmanned aerial vehicle (UAV) were used to sample five pit lakes in Nevada, USA during one week in 2017. Three of these pit lakes are located on public lands and two are located on private land owned by mining entities. A profile was taken of the Clipper pit lake with a conductivity, temperature and depth profiler on August 1, 2017. This approach can potentially incorporate the use of additional multi-parameter probes: pH, oxygen concentration, turbidity and chlorophyll. Some limitations of this UAV water sampling methodology are battery duration, weather conditions and payload capacity.

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ABSTRACT:

Residual pit lakes from mining are often dangerous to sample for water quality. Thus, pit lakes may be rarely (or never) sampled. This study developed new technology in which water-sampling devices mounted on an unmanned aerial vehicle (UAV) were used to sample five pit lakes in Nevada, USA during one week in 2017. Three of these pit lakes are located on public lands and two are located on private land owned by mining entities. A profile was taken of the Boss pit lake with a conductivity, temperature and depth profiler on July, 30 2017. This approach can potentially incorporate the use of additional multi-parameter probes: pH, oxygen concentration, turbidity and chlorophyll. Some limitations of this UAV water sampling methodology are battery duration, weather conditions and payload capacity.

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Composite Resource Composite Resource
Dexter Pit Lake 1999 to 2017
Created: March 10, 2021, 11:27 p.m.
Authors: Straight, Brian

ABSTRACT:

Residual pit lakes from mining are often dangerous to sample for water quality. Thus, pit lakes may be rarely (or never) sampled. Water-sampling devices were mounted on an unmanned aerial vehicle (UAV) to improve safety and efficiency during water sampling. The current conditions of the Dexter pit lake were assessed by examining cation and anion concentration trends over a 17-year time period since the pit lake was last sampled in 2000. We compared our 2017 sampling data to prior water-quality data from the Dexter pit lake received from the authors of Balistrieri et al. (2006). This comparison for the Dexter pit lake showed the effect of evapoconcentration in increasing cation and anion concentrations.

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Composite Resource Composite Resource
Clipper Pit Lake 8-1-2017
Created: March 11, 2021, 12:06 a.m.
Authors: Straight, Brian

ABSTRACT:

Residual pit lakes from mining are often dangerous to sample for water quality. Thus, pit lakes may be rarely (or never) sampled. Water-sampling devices were mounted on an unmanned aerial vehicle (UAV) to improve safety and efficiency during water sampling. Data gathered during this sampling campaign assessed 2017 conditions of the Clipper pit lake by comparing constituent concentrations to the Nevada Division of Environmental Protection (NDEP) pit lake water quality requirements. The results showed that all constituent meet the requirements except selenium.

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Composite Resource Composite Resource
Dexter Pit Lake 8-3-2017
Created: March 12, 2021, 7:35 p.m.
Authors: Straight, Brian

ABSTRACT:

Residual pit lakes from mining are often dangerous to sample for water quality. Thus, pit lakes may be rarely (or never) sampled. Water-sampling devices were mounted on an unmanned aerial vehicle (UAV) to improve safety and efficiency during water sampling. Data gathered during this sampling campaign assessed 2017 conditions of the Dexter pit lake by comparing constituent concentrations to the Nevada Division of Environmental Protection (NDEP) pit lake water quality requirements. The results showed that all constituent meet the requirements except selenium.

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Collection Resource Collection Resource
Nevada Pit Lakes
Created: March 16, 2021, 8:57 p.m.
Authors: Straight, Brian

ABSTRACT:

Residual pit lakes from mining are often dangerous to sample for water quality. Thus, pit lakes may be rarely (or never) sampled. This study developed new technology in which water-sampling devices mounted on an unmanned aerial vehicle (UAV) were used to sample five pit lakes in Nevada, USA during one week in 2017. Three of these pit lakes are located on public lands and two are located on private land owned by mining entities. Water-quality datasets from two of the three pit lakes on public lands, Dexter and Clipper are presented here. The current conditions of the Dexter pit lake were assessed by examining cation and anion concentration trends over a 17-year time period since the pit lake was last sampled in 2000. We compared our sampling data to prior water-quality data from the Dexter pit lake received from the authors of Balistrieri et al. (2006). This comparison for the Dexter pit lake showed the effect of evapoconcentration in increasing cation and anion concentrations. This approach can potentially incorporate the use of additional multi-parameter probes: pH, oxygen concentration, turbidity and chlorophyll. Some limitations of this UAV water sampling methodology are battery duration, weather conditions and payload capacity.

Show More
Composite Resource Composite Resource
Boss Pit Lake Profile 7-30-17
Created: March 16, 2021, 9:08 p.m.
Authors: Straight, Brian

ABSTRACT:

Residual pit lakes from mining are often dangerous to sample for water quality. Thus, pit lakes may be rarely (or never) sampled. This study developed new technology in which water-sampling devices mounted on an unmanned aerial vehicle (UAV) were used to sample five pit lakes in Nevada, USA during one week in 2017. Three of these pit lakes are located on public lands and two are located on private land owned by mining entities. A profile was taken of the Boss pit lake with a conductivity, temperature and depth profiler on July, 30 2017. This approach can potentially incorporate the use of additional multi-parameter probes: pH, oxygen concentration, turbidity and chlorophyll. Some limitations of this UAV water sampling methodology are battery duration, weather conditions and payload capacity.

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Composite Resource Composite Resource
Clipper Pit Lake Profile 8-1-17
Created: March 16, 2021, 9:21 p.m.
Authors: Straight, Brian

ABSTRACT:

Residual pit lakes from mining are often dangerous to sample for water quality. Thus, pit lakes may be rarely (or never) sampled. This study developed new technology in which water-sampling devices mounted on an unmanned aerial vehicle (UAV) were used to sample five pit lakes in Nevada, USA during one week in 2017. Three of these pit lakes are located on public lands and two are located on private land owned by mining entities. A profile was taken of the Clipper pit lake with a conductivity, temperature and depth profiler on August 1, 2017. This approach can potentially incorporate the use of additional multi-parameter probes: pH, oxygen concentration, turbidity and chlorophyll. Some limitations of this UAV water sampling methodology are battery duration, weather conditions and payload capacity.

Show More
Composite Resource Composite Resource
Dexter Pit Lake Profile 8-3-17
Created: March 16, 2021, 9:29 p.m.
Authors: Straight, Brian

ABSTRACT:

Residual pit lakes from mining are often dangerous to sample for water quality. Thus, pit lakes may be rarely (or never) sampled. This study developed new technology in which water-sampling devices mounted on an unmanned aerial vehicle (UAV) were used to sample five pit lakes in Nevada, USA during one week in 2017. Three of these pit lakes are located on public lands and two are located on private land owned by mining entities. A profile was taken of the Dexter pit lake with a conductivity, temperature and depth profiler on August 3, 2017. This approach can potentially incorporate the use of additional multi-parameter probes: pH, oxygen concentration, turbidity and chlorophyll. Some limitations of this UAV water sampling methodology are battery duration, weather conditions and payload capacity.

Show More
Composite Resource Composite Resource
UAV Flight Times & Sample Depths - Clipper Pit Lake
Created: March 18, 2021, 8:46 p.m.
Authors: Straight, Brian

ABSTRACT:

Residual pit lakes from mining are often dangerous to sample for water quality. Thus, pit lakes may be rarely (or never) sampled. This study developed new technology in which water-sampling devices mounted on an unmanned aerial vehicle (UAV) were used to sample five pit lakes in Nevada, USA during one week in 2017. A 1.2L Niskin sample bottle was attached to a DJI Matrice 600 to retrieve water samples at depth and the surface. Flight times and sample depths for the Clipper pit lake are presented here. This approach can potentially incorporate the use of additional multi-parameter probes: pH, oxygen concentration, turbidity and chlorophyll. Some limitations of this UAV water sampling methodology are battery duration, weather conditions and payload capacity.

Show More
Composite Resource Composite Resource
UAV Flight Times and Sample Depths - Dexter Pit Lake
Created: March 18, 2021, 8:57 p.m.
Authors: Straight, Brian

ABSTRACT:

Residual pit lakes from mining are often dangerous to sample for water quality. Thus, pit lakes may be rarely (or never) sampled. This study developed new technology in which water-sampling devices mounted on an unmanned aerial vehicle (UAV) were used to sample five pit lakes in Nevada, USA during one week in 2017. A 1.2L Niskin sample bottle was attached to a DJI Matrice 600 to retrieve water samples at depth and the surface. Flight times and sample depths for the Dexter pit lake are presented here. This approach can potentially incorporate the use of additional multi-parameter probes: pH, oxygen concentration, turbidity and chlorophyll. Some limitations of this UAV water sampling methodology are battery duration, weather conditions and payload capacity.

Show More