USGS remote pilots fly uncrewed aircraft systems to capture hyperspectral imagery and video footage at Willow Creek Reservoir in support of harmful algae bloom and water quality research led by the Colorado Water Science Center.
Theresa Armijo
Theresa Armijo is a Hydrologic Technician in the Colorado Water Science Center.
Theresa Armijo began her USGS career in the Connecticut office, where she contributed to studies throughout the Connecticut River and the estuaries of the Long Island Sound in both Connecticut and Rhode Island. Her expertise in this office was primarily operating, maintaining, and troubleshooting continuous water quality sondes with a focus on fluorescent sensors.
In May 2023, Theresa transferred to the Lakewood Field Office of the Colorado Water Science Center, where she operates stream gages, water quality sondes, and conducts sampling throughout Grand County, CO. She continues to focus on fluorescent water‑quality monitoring, including work in Grand Lake, CO, and is a certified UAS Remote Pilot supporting the center’s development of drone‑based remote sensing for water quality applications. Theresa has also been an instructor for the Guidelines for the Operation and Computation of Records of Continuous Water Quality Monitors course since 2024, helping advance training in the same monitoring techniques she uses in her field work.
Science and Products
Water Quality Sampling and Monitoring of the Pawcatuck River Watershed
The Pawcatuck River and the Pawcatuck River Estuary and Little Narragansett Bay form part of the boundary between the States of Connecticut and Rhode Island. Both states have identified water quality impairments within these waters related to nutrients (insufficient oxygen) and bacteria. Studies of the eutrophication potential of Long Island Sound embayments have identified that the Pawcatuck...
UAS operations at Willow Creek Reservoir
USGS remote pilots fly uncrewed aircraft systems to capture hyperspectral imagery and video footage at Willow Creek Reservoir in support of harmful algae bloom and water quality research led by the Colorado Water Science Center.
Willow Creek Reservoir, Colorado with UAS craft
An uncrewed aircraft system (UAS) flies over the open water at Willow Creek Reservoir during a harmful algae bloom research campaign.
An uncrewed aircraft system (UAS) flies over the open water at Willow Creek Reservoir during a harmful algae bloom research campaign.
UAS over Willow Creek Reservoir, Colorado
An uncrewed aircraft system (UAS) flies over the open water at Willow Creek Reservoir during a harmful algae bloom research campaign.
An uncrewed aircraft system (UAS) flies over the open water at Willow Creek Reservoir during a harmful algae bloom research campaign.
Monitoring station in tidal section of Connecticut River, Essex, Connecticut
Monitoring station in tidal section of Connecticut River, Essex, ConnecticutConnecticut River at Essex, Connecticut, station 01194750. The monitoring site houses the data logger and satellite transmitter for data collected by water quality and stage sensors in this tidal part of the Connecticut River.
Monitoring station in tidal section of Connecticut River, Essex, Connecticut
Monitoring station in tidal section of Connecticut River, Essex, ConnecticutConnecticut River at Essex, Connecticut, station 01194750. The monitoring site houses the data logger and satellite transmitter for data collected by water quality and stage sensors in this tidal part of the Connecticut River.
Taking a water sample in Green River
Photo Contest Winner | July 2021 | Honorable Mention 1
Taking a water sample in Green River
Photo Contest Winner | July 2021 | Honorable Mention 1
Taking a water sample in Green River
Science and Products
Water Quality Sampling and Monitoring of the Pawcatuck River Watershed
The Pawcatuck River and the Pawcatuck River Estuary and Little Narragansett Bay form part of the boundary between the States of Connecticut and Rhode Island. Both states have identified water quality impairments within these waters related to nutrients (insufficient oxygen) and bacteria. Studies of the eutrophication potential of Long Island Sound embayments have identified that the Pawcatuck...
UAS operations at Willow Creek Reservoir
USGS remote pilots fly uncrewed aircraft systems to capture hyperspectral imagery and video footage at Willow Creek Reservoir in support of harmful algae bloom and water quality research led by the Colorado Water Science Center.
USGS remote pilots fly uncrewed aircraft systems to capture hyperspectral imagery and video footage at Willow Creek Reservoir in support of harmful algae bloom and water quality research led by the Colorado Water Science Center.
Willow Creek Reservoir, Colorado with UAS craft
An uncrewed aircraft system (UAS) flies over the open water at Willow Creek Reservoir during a harmful algae bloom research campaign.
An uncrewed aircraft system (UAS) flies over the open water at Willow Creek Reservoir during a harmful algae bloom research campaign.
UAS over Willow Creek Reservoir, Colorado
An uncrewed aircraft system (UAS) flies over the open water at Willow Creek Reservoir during a harmful algae bloom research campaign.
An uncrewed aircraft system (UAS) flies over the open water at Willow Creek Reservoir during a harmful algae bloom research campaign.
Monitoring station in tidal section of Connecticut River, Essex, Connecticut
Monitoring station in tidal section of Connecticut River, Essex, ConnecticutConnecticut River at Essex, Connecticut, station 01194750. The monitoring site houses the data logger and satellite transmitter for data collected by water quality and stage sensors in this tidal part of the Connecticut River.
Monitoring station in tidal section of Connecticut River, Essex, Connecticut
Monitoring station in tidal section of Connecticut River, Essex, ConnecticutConnecticut River at Essex, Connecticut, station 01194750. The monitoring site houses the data logger and satellite transmitter for data collected by water quality and stage sensors in this tidal part of the Connecticut River.
Taking a water sample in Green River
Photo Contest Winner | July 2021 | Honorable Mention 1
Taking a water sample in Green River
Photo Contest Winner | July 2021 | Honorable Mention 1
Taking a water sample in Green River