Videos

Permanent Site: L1 West Transect; Depth: 11.1 Meters (36.5 Feet); Distance from river mouth: 2.3 Kilometers (1.4 Miles) west; Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.13957527,-123.59427175; Site Description: This transect is medium depth. The first 20 meters contains scattered boulders (0:17 seconds).

Permanent Site: A1 West Transect; Depth: 9.0 Meters (29.6 Feet); Distance from river mouth: 1.9 Kilometers (1.2 Miles) West; Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.13870775, -123.586203; Site Description: Transect is in eastern part of Freshwater Bay. Sediment is primarily sand/sandy mud with patches of boulders. Seaweeds are common this year.

Permanent Site: H2 East Transect; Depth: 8.1 Meters (26.6 Feet); Distance from river mouth: 2.6 Kilometers (1.6 Miles) east; Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.15008216,-123.53210661; Site Description: This site is medium to shallow depth.

Permanent Site: C1 East Transect; Depth: Meters (Feet); Distance from river mouth: 0.7 Kilometers (0.4 Miles); Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.14525225,-123.57294101; Site Description: Substrate is entirely sand. All seaweeds are absent. Woody debris is present (0:26, seconds).

Permanent Site: C1 West Transect; Depth: Meters (Feet); Distance from river mouth: 0.7 Kilometers (0.4 Miles); Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.14525225,-123.57361291; Site Description: Substrate is entirely sand. All seaweeds are absent. Woody debris is present (0:12, 1:49 seconds).

Twenty middle-school girls from Washington and Oregon participated in the 2016 “GeoGirls” outdoor volcano science program at Mount St. Helens, jointly organized by the U.S. Geological Survey and the Mount St. Helens Institute. 

Video of ARIS Sonar imagery showing a female and two male shovelnose sturgeon over an egg deposition location recorded during controlled experiments to study spawning behavior.
 

For more information on the movement of wild birds in Asia and how this relates to avian influenza viruses, see http://www.pwrc.usgs.gov/ai. The autumn migration routes of bar-headed geese captured before the 2008 breeding season at Qinghai Lake, China, were documented using satellite tracking data.

This video documents a U.S. Geological Survey technical procedure for groundwater well redevelopment using the air lift method. Over time, groundwater wells may become partially or even fully blocked by accumulation of materials at the well screen or openings.

Permanent Site: C1 East Transect; Depth: Meters (Feet); Distance from river mouth: 0.7 Kilometers (0.4 Miles); Pre/Post Dam Removal: 2 years post-dam removal; Lat/Long: 48.14525225,-123.57294101; Site Description: Substrate is entirely sand. All seaweeds are absent.

Permanent Site: A2 East Transect; Depth: 12.6 Meters (41.5 Feet); Distance from river mouth: Kilometers 1.8 (1.1 Miles); Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.14130295, -123.58766124; Site Description: One of our deeper sites at over 40 feet. Sediment is primarily sand/sandy mud.

Permanent Site: K1 East Transect; Depth: 6.2 Meters (20.5 Feet); Distance from river mouth: 4.5 Kilometers (2.8 Miles) east; Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.13592923,-123.5101581; Site Description: This is a shallow site. Sediment is a gravel/sand mixture.

Permanent Site: K1 West Transect; Depth: 5.6 Meters (18.4 Feet); Distance from river mouth: 4.5 Kilometers (2.8 Miles) east; Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.13592923,-123.51082988; Site Description: This is a shallow site. Sediment is a gravel/sand mixture.

Permanent Site: F2 East Transect; Depth: 11.3 Meters (37.2 Feet); Distance from river mouth: 1.5 Kilometers (0.9 Miles) east; Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.15672004,-123.54969397; Site Description: Substrate is mainly a gravel - cobble mixture with an occasional boulder.

Permanent Site: F2 West Transect; Depth: 11.3 Meters (37.2 Feet); Distance from river mouth: 1.5 Kilometers (0.9 Miles) east; Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.15672004,-123.55036603; Site Description: Substrate is mainly a gravel - cobble mixture with an occasional boulder.

Permanent Site: J1 East Transect; Depth: 9.3 Meters (30.4 Feet); Distance from river mouth: 6.7 Kilometers (4.1 Miles) east; Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.13607725,-123.47935008; Site Description: This site is medium depth. Substrates is mainly a gravel/sand mixture.

Volcanic eruptions occur int he State about as frequently as the large San Andreas Fault Zone earthquakes. California's "watch list" volcanoes are dispersed throughout the State and future eruptions are inevitable—the likelihood of renewed volcanism is on the order of one in a few hundred to one in a few thousand annually.

Permanent Site: F1 East Transect; Depth: 6.3 Meters (20.6 Feet); Distance from river mouth: 1.3 Kilometers (0.8 Miles) east; Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.15292999, -123.55011402; Site Description: Visibility on the day this video was taken was bad and the currents were swift. This is a shallow site. Substrate is all sand.

Permanent Site: F1 West Transect; Depth: 6.6 Meters (21.7 Feet); Distance from river mouth: 1.3 Kilometers (0.8 Miles) east; Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.15292999, -123.55078602; Site Description: Visibility on the day this video was taken was bad and the currents were swift. This is a shallow site. Substrate is all sand.

The video shows small smoking objects (insects) and a larger object (bird) as it begins to smoke when entering the solar flux. The turquoise window is the thermal camera view of this same event.

The video shows smaller smoking objects (insects). Dark objects (birds) are flying above the tower. We are uncertain of the origin of dark trails following the birds.