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Multimedia

The Lower Mississippi-Gulf multimedia gallery is a collection of images and videos that help vizualize our mission. We strive to provide first-class science and data to the public and our cooperators.

Images

Image shows a large pile of debris left behind after major flooding. A damaged camper can be seen in the pile.
Aftermath of severe flooding on Pigeon River in Newport, Tennessee
Aftermath of severe flooding on Pigeon River in Newport, Tennessee
Aftermath of severe flooding on Pigeon River in Newport, Tennessee

USGS Hydrologic Technician Pamela Loftin looks on at the aftermath of severe flooding on Pigeon River in Newport, Tennessee. USGS crews were onsite October 1 to measure high-water marks to determine how high the flood waters reached at this location. Photo by Logan Combs, USGS. 

USGS Hydrologic Technician Pamela Loftin looks on at the aftermath of severe flooding on Pigeon River in Newport, Tennessee. USGS crews were onsite October 1 to measure high-water marks to determine how high the flood waters reached at this location. Photo by Logan Combs, USGS. 

Katherine J Knierim, Ph.D
Kathy_Knierim_2.jpg
Kathy_Knierim_2.jpg
Kathy_Knierim_2.jpg

Katherine J Knierim, Ph.D - Lower Mississippi-Gulf Water Science Center Hydrologist

Katherine J Knierim, Ph.D - Lower Mississippi-Gulf Water Science Center Hydrologist

Keeping it Green with Winter Cover Crops 6
WINTER COVER CROPS - delayed termination
WINTER COVER CROPS - delayed termination
WINTER COVER CROPS - delayed termination

Similarly, growing the cover crop later into the spring (delayed termination) can result in greatly increased biomass due to warmer growing conditions, with corresponding increases in nutrient uptake, root development, and soil health benefits (same field pictured on March 15, left, and May 2, right).

Similarly, growing the cover crop later into the spring (delayed termination) can result in greatly increased biomass due to warmer growing conditions, with corresponding increases in nutrient uptake, root development, and soil health benefits (same field pictured on March 15, left, and May 2, right).

WINTER COVER CROPS - On-farm sampling
Keeping-Green-Hiveley (1).PNG
Keeping-Green-Hiveley (1).PNG
Keeping-Green-Hiveley (1).PNG

On-farm sampling of cover crop performance, conducts using quadrats and camera equipment, is used to calibrate remote sensing vegetation indices to calculate cover crop biomass and vegetative cover from satellite. 

On-farm sampling of cover crop performance, conducts using quadrats and camera equipment, is used to calibrate remote sensing vegetation indices to calculate cover crop biomass and vegetative cover from satellite. 

WINTER COVER CROPS - On-farm performance
WINTER COVER CROPS - On-farm performance
WINTER COVER CROPS - On-farm performance
WINTER COVER CROPS - On-farm performance

On-farm performance of winter cover crops is variable, ranging from minimal biomass due to poor agronomy and weather conditions; low biomass due to limited soil nutrients and late planting dates; medium biomass under typical growing conditions; and high biomass due to good agronomy, favorable weather, and abundant availability of soil nutrients.

On-farm performance of winter cover crops is variable, ranging from minimal biomass due to poor agronomy and weather conditions; low biomass due to limited soil nutrients and late planting dates; medium biomass under typical growing conditions; and high biomass due to good agronomy, favorable weather, and abundant availability of soil nutrients.

Keeping it Green initiative of overhead
Keeping It Green Image 5
Keeping It Green Image 5
Keeping It Green Image 5

Wintertime satellite imagery of Maryland farmland shows areas with higher amounts of green vegetation in deeper red colors. Bare fallow fields are distinguishable from cover crops and winter cereal crops, and evergreen forest is distinguishable from deciduous forest.

Wintertime satellite imagery of Maryland farmland shows areas with higher amounts of green vegetation in deeper red colors. Bare fallow fields are distinguishable from cover crops and winter cereal crops, and evergreen forest is distinguishable from deciduous forest.

Videos

USGS Journeys: Restored - A Hydrologist's Story USGS Journeys – RESTORED: A Hydrologist’s Story
USGS Journeys – RESTORED: A Hydrologist’s Story
USGS Journeys – RESTORED: A Hydrologist’s Story

With science centers in 13 states and two territories, the Southeast Region of the United States Geological Survey is comprised of individuals from all across the country who aid in serving the public with invaluable data about the country’s most critical ecological processes.

With science centers in 13 states and two territories, the Southeast Region of the United States Geological Survey is comprised of individuals from all across the country who aid in serving the public with invaluable data about the country’s most critical ecological processes.

Monitoring Suspended Sediment and Flow along the Mississippi River Episode 2 Monitoring Suspended Sediment and Flow along the Mississippi River: Episode 2
Monitoring Suspended Sediment and Flow along the Mississippi River: Episode 2
Monitoring Suspended Sediment and Flow along the Mississippi River: Episode 2

In this video segment, the U.S. Geological Survey (USGS), Lower Mississippi Gulf Water Science Center (LMGWSC) scientists give a detailed description of how the USGS uses Acoustic Doppler Current Profilers, (ADCP) to measure flow along the lower Mississippi River.

In this video segment, the U.S. Geological Survey (USGS), Lower Mississippi Gulf Water Science Center (LMGWSC) scientists give a detailed description of how the USGS uses Acoustic Doppler Current Profilers, (ADCP) to measure flow along the lower Mississippi River.

Monitoring suspended Sediment and Flow along the Mississippi River Monitoring Suspended Sediment and Flow along the Mississippi River: Episode 3B
Monitoring Suspended Sediment and Flow along the Mississippi River: Episode 3B
Monitoring Suspended Sediment and Flow along the Mississippi River: Episode 3B

(Episode 3, Part B) In this video segment, the U.S. Geological Survey (USGS), Lower Mississippi Gulf Water Science Center (LMGWSC) scientists give a detailed description of how the USGS deploys heavy samplers to collect discrete water samples for suspended sediment, and bed material on large rivers like the Mississippi River.

(Episode 3, Part B) In this video segment, the U.S. Geological Survey (USGS), Lower Mississippi Gulf Water Science Center (LMGWSC) scientists give a detailed description of how the USGS deploys heavy samplers to collect discrete water samples for suspended sediment, and bed material on large rivers like the Mississippi River.

Monitoring Suspended Sediment and Flow along the Mississippi River Bonus Episode Monitoring Suspended Sediment and Flow along the Mississippi River: Bonus Episode
Monitoring Suspended Sediment and Flow along the Mississippi River: Bonus Episode
Monitoring Suspended Sediment and Flow along the Mississippi River: Bonus Episode

In this video segment, the U.S. Geological Survey (USGS), Lower Mississippi Gulf Water Science Center (LMGWSC) scientists give a preview of how the USGS is currently working to design a new generation large river sampler. This new sampler will incorporate all functions of previously developed USGS depth and point samplers.

In this video segment, the U.S. Geological Survey (USGS), Lower Mississippi Gulf Water Science Center (LMGWSC) scientists give a preview of how the USGS is currently working to design a new generation large river sampler. This new sampler will incorporate all functions of previously developed USGS depth and point samplers.

Monitoring suspended Sediment and Flow along the Mississippi River Monitoring Suspended Sediment and Flow along the Mississippi River: Episode 3A
Monitoring Suspended Sediment and Flow along the Mississippi River: Episode 3A
Monitoring Suspended Sediment and Flow along the Mississippi River: Episode 3A

In this video segment (Episode 3, Part A), the U.S. Geological Survey (USGS), Lower Mississippi Gulf Water Science Center (LMGWSC) scientists give a detailed description of how the USGS deploys heavy samplers to collect discrete water samples for suspended sediment, and bed material on large rivers like the Mississippi River.

In this video segment (Episode 3, Part A), the U.S. Geological Survey (USGS), Lower Mississippi Gulf Water Science Center (LMGWSC) scientists give a detailed description of how the USGS deploys heavy samplers to collect discrete water samples for suspended sediment, and bed material on large rivers like the Mississippi River.

Groundwater use from the Ozark Plateaus aquifer system, 1900 to 2010
Groundwater use from the Ozark Plateaus aquifer system, 1900 to 2010
Groundwater use from the Ozark Plateaus aquifer system, 1900 to 2010

Groundwater use from the Ozark Plateaus aquifer system, 1900 to 2010” is a short video showing modeled groundwater withdrawal rates from the Ozark Plateaus aquifer system (Ozark system) in the central United States.

Groundwater use from the Ozark Plateaus aquifer system, 1900 to 2010” is a short video showing modeled groundwater withdrawal rates from the Ozark Plateaus aquifer system (Ozark system) in the central United States.

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