Videos

A live, online chat about East Coast earthquakes and the Virginia 5.8M earthquake that occurred on August 23, 2011, with Dr. Michael Blanpied, Associate Coordinator for the USGS Earthquake Hazards Program.

Repeat Photography in an Era of Global Change

by Robert Webb, Hydrologist

Female Pacific walruses and their calves traditionally spend summers far from shore, diving for benthic invertebrates over the shallow continental shelf waters of the Chukchi Sea. These female walruses and their calves prefer to rest between forage bouts on sea ice drifting above their feeding grounds.

Permanent Site: D1 East Transect; Depth: 9.4 Meters (30.9 Feet); Distance from river mouth: 0.2 Kilometers (0.1 Miles); Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.15115998,-123.56734404; Site Description: This site is right off the mouth of the river. Substrate is mainly gravel with some sand.

Permanent Site: D1 West Transect; Depth: 10.3 Meters (33.8 Feet); Distance from river mouth: 0.2 Kilometers (0.1 Miles); Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.15115998,-123.56801602; Site Description: This site is right off the mouth of the river. Substrate is mainly gravel with some sand. Seaweed is abundant.

Permanent Site: C2 East Transect; Depth: 16.5 Meters (Feet 54); Distance from river mouth: 0.7 Kilometers (0.4 Miles); Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.147841,-123.57596074; Site Description: One of our deepest sites. Mainly sand with small amounts of gravel.

Permanent Site: C2 West Transect; Depth: 16.8 Meters (Feet 55.2); Distance from river mouth: 0.7 Kilometers (0.5 Miles); Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.147841,-123.57663268; Site Description: Mainly sand with small amounts of gravel. One of our deepest sites. Mainly sand with small amounts of gravel.

Permanent Site: D2 East Transect; Depth: 12.1 Meters (39.8 Feet); Distance from river mouth: 0.3 Kilometers (0.2 Miles); Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.15233001,-123.56829403; Site Description: This site is right off the mouth of the river. Substrate is mainly gravel with some sand. Seaweed is abundant.

Permanent Site: D2 West Transect; Depth: 12.6 Meters (41.3 Feet); Distance from river mouth: 0.3 Kilometers (0.2 Miles); Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.15233001,-123.56896603; Site Description: This site is right off the mouth of the river. Substrate is mainly gravel with some sand. Seaweed is abundant.

Permanent Site: H1 West Transect; Depth: 5.9 Meters (Feet 19.4); Distance from river mouth: 2.4 Kilometers (1.5 Miles) east; Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.14803012,-123.53535558; Site Description: This is a shallow site and one of the farthest removed from the effects of the sediment plume outside of the control sites.

(Aug 19, 2006, 00:00:33 to 01:40:33) To document changes in the lava stream level within the PKK lava tube, a time-lapse camera was placed at the edge of the informally named "Kelly's" skylight. The camera recorded several abrupt and short-lived increases in lava stream level that eventually sealed the skylight shut.

Permanent Control Site: GP1 East Transect; Depth: 7.4 Meters (24.2 Feet); Distance from river mouth: 19.0 Kilometers (11.8 Miles) east; Pre/Post Dam Removal: 1 month pre-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: 7.8 Meters (25.7 Feet); Distance from river mouth: 19.0 Kilometers (11.8 Miles) east; Pre/Post Dam Removal: 1 month pre-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: 1 month pre-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: 13.1 Meters (43 Feet); Distance from river mouth: 18.8 Kilometers (11.6 Miles) east; Pre/Post Dam Removal: 1 month pre-dam removal; Lat/Long: 48.12781102,-123.31645664; Site Description: This site was established as the eastern control.

In this episode we explore how scientists for the USGS National Water Quality Assessment Program investigate the ecological health of rivers and streams across the United States. Focusing on a recent sampling effort along the Minam River in northeast Oregon, this video highlights USGS sampling methods for fish, macroinvertebrates (bugs), algae, and habitat.

Pete Van Metre and Barbara Mahler discuss an experiment to assess release of Polycyclic Aromatic Hydrocarbons (PAHs) from coal tar pavement sealant after application on a parking lot. (Long Version)

Pete Van Metre and Barbara Mahler discuss an experiment to assess release of Polycyclic Aromatic Hydrocarbons (PAHs) from coal tar pavement sealant after application on a parking lot. (Short Version)

B-roll footage of the Minam River near Wallowa, in eastern Oregon. Footage shot in August 2011 as part of the USGS National Water Quality Assessment Program hydrologic benchmark study.

Raw interview footage of hydrologist Kurt Carpenter discussing algae in the Minam River near the town of Wallowa, in eastern Oregon. Footage shot in August 2011 as part of the USGS National Water Quality Assessment Program hydrologic benchmark study.

Raw interview footage of hydrologist Kurt Carpenter discussing algae in the Minam River near the town of Wallowa, in eastern Oregon. Footage shot in August 2011 as part of the USGS National Water Quality Assessment Program hydrologic benchmark study.