Videos

This video, at 50x speed to illustrate the motion of the lava lake surface, shows typical lava lake activity within Halema‘uma‘u Crater. Lava upwells in the northern portion of the lake (left side of image), with most of the lake surface flowing towards the south (right side).

As you watch this VIDEO CLIP, note the rocky ledge (yellow arrow) at the bottom of the webcam image. At 6:58 a.m., HST, today, this large slab of the summit vent wall, located directly below HVO's HMcam, collapsed.

The new Great Salt Lake breach was opened on Dec. 1 by the Union Pacific Railroad Company. This created a new opening between the north and the south arm of the lake, allowing water to flow between the two sides. This time-lapse video shows the breach opening, which took about two hours.

Presents descriptions of the USGS Precipitation Runoff Modeling System (PRMS) Surface-Runoff modules, which compute Hortonian surface runoff, soil infiltration, and impervious surface and surface depression storage and flows.
 

An invitation and introduction to the 2017 CEOS Plenary being held in the Black Hills near Rapid City, SD.
 

VIDEO CLIP captured by HVO webcam: At 11:59 a.m., a rockfall from the south wall of Halema‘uma‘u Crater triggered a small explosive event in the summit lava lake. The explosion threw spatter (fragments of molten lava) onto the rim of the crater, mostly to the west of the former visitor overlook.

This VIDEO CLIP shows a cloud of ash and spatter being thrown from the summit lava lake during today's explosive event. The images were captured by an HVO webcam located on the rim of Halema‘uma‘u Crater, just above the rockfall area.

Ecological Stressors: It's a Lot of 'WERC'
"There's is no place like California" by A. Keith Miles, Center Director, USGS Western Ecological Research Center

Highlights of the science of the USGS Western Ecological Research Center: 

Approximately 25 to 50 percent of a living tree is made up of water, depending on the species and time of year. The water stored in trees has previously been considered just a minor part of the water cycle, but a study by University of Alaska Fairbanks scientists with support from the DOI Alaska Climate Science Center shows otherwise.

This video shows activity in the summit lava lake in Halema‘uma‘u Crater. Spattering like this is common in the lake, and this video shows the view from the rim of Halema‘uma‘u (closed to the public due to volcanic hazards). This spattering has recently been visible from the Jaggar Overlook inside Hawai‘i Volcanoes National Park (open to the public).

In this video we will outline the process of accounting for open water flow angles in the SonTek RSSL software. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS.

In this video we will outline the process of accounting for under ice flow angles in the SonTek RSSL software. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS.

In this video we will outline the process of collecting an open water station in the SonTek RSSL software. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS.

In this video we will outline the process of collecting an under ice station in the SonTek RSSL software. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS.

In this video we will highlight the important data quality indicators in the SonTek RSSL software. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS.

In this video we will outline the process of editing vertical information using the SonTek RSSL software. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS.

In this video, we will briefly review how to enable the RiverSurveyor Stationary Live software for field operation, enabling it for use. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS.

In this video we will demonstrate how to enter ending edge information in the SonTek RSSL software. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS.

In this video we will outline the process of entering manual station information in the SonTek RSSL software. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS.

This tutorial shows you how to search EarthExplorer using latitude and longitude coordinates.

This tutorial shows you how to search EarthExplorer using the interactive map interface.