Videos

Permanent Site: J1 West Transect; Depth: 9.1 Meters (29.9 Feet); Distance from river mouth: 6.6 Kilometers (4.1 Miles) east; Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.13607725,-123.48002186; Site Description: This permanent site was only established post dam-removal after it was discovered that the degree of seaweed loss was more extensive than

Heather Welch, Claire Rose, and Richard Coupe, U.S. Geological Survey scientists involved in the National Water Quality Assessment (NAWQA) Study of Agricultural Chemical Transport (ACT) study, outline agricultural effects on water quality in the Mississippi Delta region.

America has questions about climate change, and the USGS has real answers. In this episode of Climate Connections, USGS scientists answer questions gathered from students at H.D. Woodson High School in Washington, DC. Questions include:

Interview by Richard Coupe (US Geological Survey) of Jeannie Barlow-- a scientist involved in the National Water Quality Assessment (NAWQA) Study of Agricultural Chemical Transport (ACT)-- on groundwater/surface-water interaction.

Watch video interviews with four people discussing their experiences near the epicenter of the magnitude 5.8 earthquake in central Virginia on August 23, 2011. Tens of millions of people in the eastern U.S. and southeastern Canada were startled by sudden ground shaking from this earthquake, which was among the largest to occur in this region in the last century.

Interview by Richard Coupe (U.S. Geological Survey) of Heather Welch-- a scientist involved in the National Water Quality Assessment (NAWQA) Study of Agricultural Chemical Transport (ACT)-- on her research results on environmental effects of biofuel production.

Richard Coupe (U.S. Geological Survey) summarizes research results of glyphosate and water quality as part of the the National Water Quality Assessment (NAWQA) Study of Agricultural Chemical Transport (ACT).

Interview by Richard Coupe (US Geological Survey) of Claire Rose- a scientist involved in the National Water Quality Assessment (NAWQA) Study of Agricultural Chemical Transport (ACT)on research results of metolachlor transport.

Interview by Richard Coupe (U.S. Geological Survey) of Richard Rebich-- a scientist involved in the National Water Quality Assessment (NAWQA) Study of Agricultural Chemical Transport (ACT)-- results of SPARROW Modeling. SPARROW is a a modeling tool for the regional interpretation of water-quality monitoring data.

Interviews by Richard Coupe (US Geological Survey) of scientists involved in the National Water Quality Assessment (NAWQA) Study of Agricultural Chemical Transport (ACT) in the environment.

Water-quality sampling of the Mississippi River by Mike Manning, David Burt, and Claire Rose of the U.S. Geological Survey.

Claire Rose (USGS) and Richard Coupe (USGS) talk with Kenneth Hood about farming and Agricultural Chemical Transport (ACT) Study research done on his farm in the Mississippi Delta.

Claire Rose (USGS) and Richard Coupe (USGS) talk with Lawrence Murphy about farming and Agricultural Chemical Transport Study research done on his farm in the Mississippi Delta.

U.S. Geological Survey scientists encounter Asian flying carp on the Yazoo River, Mississippi.

Permanent Control Site: GP1 East Transect; Depth: 7.2 Meters (23.6 Feet); Distance from river mouth: 19.0 Kilometers (11.8 Miles) east; Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.11852521,-123.31538047; Site Description: This site was established as the eastern control. Depth is medium-shallow.

Permanent Control Site: GP1 West Transect; Depth: 7.6 Meters (24.9 Feet); Distance from river mouth: 19.0 Kilometers (11.8 Miles) east; Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.11852521,-123.31605203; Site Description: This site was established as the eastern control. Depth is medium-shallow.

Permanent Control Site: GP2 East Transect; Depth: 12.9 Meters (42.3 Feet); Distance from river mouth: 18.8 Kilometers (11.7 Miles) east; Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.12781102,-123.31645664; Site Description: This site was established as the eastern control. Substrate is mainly a gravel sand mixture.

Permanent Control Site: GP2 West Transect; Depth: 12.7 Meters (41.8 Feet); Distance from river mouth: 18.8 Kilometers (11.6 Miles) east; Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.12781102,-123.31712832; Site Description: This site was established as the eastern control. Substrate is mainly a gravel/sand/cobble mixture surrounding boulders.

Permanent Site: E2 East Transect; Depth: 14.7 Meters (48.2 Feet); Distance from river mouth: 0.9 Kilometers (0.5 Miles) east; Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.15653002,-123.56130401; Site Description: This is one of our deeper sites. Video was not available in 2011 for this site pre-dam removal.

Permanent Site: E2 West Transect; Depth: 15.0 Meters (49.1 Feet); Distance from river mouth: 0.9 Kilometers (0.5 Miles) east; Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.15653002, -123.56197605; Site Description: This is one of our deeper sites. Substrate is mainly gravel/cobble with scattered boulders.

Permanent Site: H2 East Transect; Depth: 7.9 Meters (26.0 Feet); Distance from river mouth: 2.6 Kilometers (1.6 Miles) east; Pre/Post Dam Removal: 10 months post-dam removal; Lat/Long: 48.15008216,-123.53210661; Site Description: This site is medium to shallow depth.