Using Video Imagery to Study Sediment Transport and Wave Dynamics: Nuvuk (Point Barrow)
Science Center Objects
Two coastal observing video cameras are installed atop a utility pole near the northernmost point of land in the United States, at Nuvuk (Point Barrow), Alaska. The cameras point northwest toward the Arctic Ocean and the boundary between the Chukchi and Beaufort Seas, and will be used to observe and quantify coastal processes such as wave run-up, bluff erosion, movement of sandbars and ice floes, and sediment entrainment and transport by ice.
Close-up of the cameras. Credit: Dan Nowacki, USGS Pacific Coastal and Marine Science Center
Nuvuk, Alaska sits at the end of a low-lying barrier spit about 16 km (10 miles) northeast of the Alaska Community of Utqiaġvik (formerly Barrow). This region is vulnerable to coastal erosion and marine flooding during large storm events which are now increasingly impacting the coast during the fall and early winter months. Warming trends in the Arctic are leading to reduced ice coverage and later fall and early winter freeze-up of shorefast ice allowing storm surge and ocean waves to flood and erode the otherwise protected coast.
Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes. Examples of the types of images collected are shown below. Please note that it takes 10 minutes for the images to be posted, once they are collected by the solar-powered camera. Also note that if an old image is shown, the solar panels may not be getting enough sun and the camera system goes into power-saving mode.
For water level and meteorological observations near the Nuvuk station, visit the Prudhoe Bay NOAA Tides & Currents site.
This is the second USGS coastal observing camera operating in Alaska. The station at Unalakleet Alaska, on the coast of Norton Sound, has been operating since March 2019 (with an extended gap between November 2019 through September 2021). The knowledge gained will improve computer-derived simulations of shoreline change that communities can use to plan for sea-level rise, changing storm patterns, and other threats to coasts.
Currently, USGS video cameras are active at these locations:
- Dream Inn hotel in Santa Cruz, California
- Head of the Meadow Beach, Massachusetts
- Marconi Beach, Massachusetts
- Norton Sound, Unalakleet, Alaska
- Nuvuk (Point Barrow), Alaska
- Pea Island National Wildlife Refuge, North Carolina
- Sunset State Beach, California
- Tres Palmas in Rincón, Puerto Rico
Snapshot
The snapshot is the first frame of the video, just like a standard photo.
Timex (time-exposure) images
A timex is a time-averaged image of all frames, smoothing away surface waves and determining the location of persistent wave-breaking (indicative of shallow sandbars).
Variance images
A “variance” image shows the standard deviation of pixel intensity throughout the video, and it is useful for determining how much variation or movement is occurring at a given location.
Bright images
A “bright” image shows the brightest pixel values throughout the video, useful for identifying the position of maximum wave run-up on the beach, position of all breaking waves, and sea-state.
Dark images
A “dark” image shows the darkest pixel values throughout the video, useful for tracking sediment plumes, tracking floating debris, and filtering out breaking waves.
The video camera assembly, complete with solar power panels, installed in Nuvuk (Point Barrow) Alaska. Credit: Dan Nowacki, USGS Pacific Coastal and Marine Science Center. Public domain.
-
Date published: October 15, 2021Status: ActiveClimate impacts to Arctic coasts
The Arctic region is warming faster than anywhere else in the nation. Understanding the rates and causes of coastal change in Alaska is needed to identify and mitigate hazards that might affect people and animals that call Alaska home.
-
Date published: September 30, 2021Status: ActiveRemote Sensing Coastal Change
We use remote-sensing technologies—such as aerial photography, satellite imagery, structure-from-motion (SfM) photogrammetry, and lidar (laser-based surveying)—to measure coastal change along U.S. shorelines.
Contacts: Jonathan Warrick -
Date published: September 30, 2021Status: ActiveUsing Video Imagery to Study Coastal Change: Santa Cruz Beaches
Two video cameras atop the Dream Inn hotel in Santa Cruz, California, overlook the coast in northern Monterey Bay. One camera looks eastward over Santa Cruz Main Beach and boardwalk, while the other looks southward over Cowells Beach.
Contacts: Jonathan Warrick -
Date published: September 30, 2021Status: ActiveUsing Video Imagery to Study Wave Dynamics: Unalakleet
USGS scientists installed two video cameras atop a windmill tower in Unalakleet, Alaska, pointing westward over Norton Sound, to observe and quantify coastal processes such as wave run-up, development of rip channels, bluff erosion, and movement of sandbars and ice floes.
Contacts: Ann Gibbs, Li Erikson -
Date published: September 30, 2021Status: ActiveUsing Video Imagery to Study Coastal Change: Sunset State Beach
Two video cameras overlook the coast at Sunset State Beach in Watsonville, California. Camera 1 looks northwest while Camera 2 looks north. The cameras are part of the Remote Sensing Coastal Change project.
Contacts: Jonathan Warrick -
Date published: September 30, 2021Status: ActiveUsing Video Imagery to Study Wave Dynamics: Tres Palmas
Four video cameras look westward over the coast and the coral reef at Tres Palmas in Rincón, on the west coast of Puerto Rico. Two cameras look out at the horizon and over the ocean for the mid-field view; one camera offers a zoomed-in, far-field view overlooking the reef and out to the island of Desecheo, a U.S. National Wildlife Refuge; and another camera focuses on the beach.
Contacts: Curt Storlazzi, PhD, Miguel Canals-Silander, Patricia Chardon Maldonado -
Date published: September 29, 2021Status: ActiveUsing Video Imagery to Study Storm Events at Pea Island National Wildlife Refuge
Two video cameras are temporarily mounted on a dune at Pea Island National Wildlife Refuge on the Outer Banks of North Carolina.
-
Date published: September 16, 2021Status: ActiveUsing Video Imagery to Study Head of the Meadow Beach
Two video cameras are mounted on a bluff near Head of the Meadow Beach, Cape Cod National Seashore, North Truro, MA. One camera looks alongshore toward the north-northeast, and the second looks directly offshore (northeast). The cameras are part of a U.S. Geological Survey research project to study the beach and nearshore environment shared by beachgoers, shorebirds, seals, and sharks. The...
Contacts: Christopher Sherwood, PhD -
Date published: March 5, 2021Status: ActiveUsing Video Imagery to Study Marconi Beach
Two video cameras are mounted on a bluff above Marconi Beach, Cape Cod National Seashore, Wellfleet, MA. One camera looks alongshore toward the northeast, and the second looks directly offshore (east). The cameras are part of a U.S. Geological Survey research project to study the beach and nearshore environment shared by beachgoers, shorebirds, seals, and sharks. The work is being conducted...
Contacts: Christopher Sherwood, PhD -
Date published: November 29, 2019Status: CompletedUsing Video Imagery to Study Coastal Change: Whidbey Island
From May of 2018 through November of 2019, USGS scientists collected imagery from video cameras overlooking the coast along a beach on Whidbey Island, Island County at the northern boundary of Puget Sound in western Washington.
Contacts: Eric Grossman
Point Barrow Alaska
The large grain size is notable at this high-energy beach at Point Barrow, or Nuvuk, Alaska
Video camera setup at Point Barrow, Alaska
Point Barrow, Alaska, or Nuvuk, is the northernmost point in the United States. USGS has set up video cameras, mounted to the pole shown here, to study sediment movement and wave dynamics along this dynamic coastline.
Video camera setup at Nuvuk, Alaska
Point Barrow, Alaska, or Nuvuk, is the northernmost point in the United States. USGS has set up video cameras, mounted to the pole shown here, to study sediment movement and wave dynamics along this dynamic coastline.
Nuvuk Alaska webcam
Webcam mounted on a pole at Nuvuk, Alaska to monitor wave dynamics and sediment movement at the shoreline.
Webcam setup in Nuvuk, AK
A video camera assembly, complete with solar power panels, installed in Nuvuk (Point Barrow) Alaska.