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Shaded relief map of Henrys Fork Caldera and vicinity
October 31, 2021

Shaded relief map of Henrys Fork Caldera and vicinity

Shaded relief map of Henrys Fork Caldera and vicinity. The margin of Henrys Fork Caldera is shown in blue. Note the smooth, low-relief topography within the caldera compared to the steep and dynamic topography associated with Yellowstone Caldera (at the right side of the image).

Different views of an eruption from two predictable geysers
October 15, 2021

Different views of an eruption from two predictable geysers

Different views of an eruption from two predictable geysers. (a, c) Graphs showing water temperatures recorded by data loggers stationed near Beehive and Old Faithful Geysers, respectively. These data loggers were deployed by the Yellowstone Geology Program, configured to capture temperatures at one-minute intervals (indicated by blue dots). Significant upticks in

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Example initial analyses on the water temperature data
October 15, 2021

Example initial analyses on the water temperature data

Example initial analyses on the water temperature data. (a, c) Graphs showing the calculated time between eruptions. (b, d) Histograms demonstrating the distribution of eruption intervals. Given this single week in June, we observe that Beehive Geyser erupted in a bi-modal fashion, preferring ~15 hour and ~19 hour intervals, while Old Faithful shows a unimodal trend with a

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Research Vessel Annie and Remotely Operated Vehicle Yogi
October 15, 2021

Research Vessel Annie and Remotely Operated Vehicle Yogi

Research Vessel Annie and Remotely Operated Vehicle Yogi.  a) R/V Annie on Yellowstone Lake operated by the Global Foundation for Ocean Exploration.  Image Rob Harris, OSU.  b) ROV Yogi with GFOE President Dave Lovalvo.  Image Todd Gregory, GFOE.  C) ROV Yogi and 1-m heat flow probe.  This probe is shown swinging from the

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Yellowstone Lake bathymetry showing the location of the Deep Hole vent field
October 15, 2021

Yellowstone Lake map showing the location of the Deep Hole vent field

Yellowstone Lake bathymetry showing the location of the Deep Hole vent field.  Inset shows locations of heat-flux measurements (red dots) in the Deep Hole vent field.

USGS Earth Explorer web tool showing an example of the geographic area and date range search criteria for Yellowstone
October 2, 2021

Earth Explorer web tool showing example of search criteria

Screen shot of the USGS Earth Explorer web tool showing an example of the geographic area and date range search criteria for Yellowstone.

USGS Earth Explorer screen shot showing example of selecting the Data Sets to search
October 2, 2021

USGS Earth Explorer screen shot showing Data Sets to search example

USGS Earth Explorer screen shot showing example of selecting the Data Sets to search.

USGS Earth Explorer screen shot showing example of Landsat 8 search results over Yellowstone
October 2, 2021

USGS Earth Explorer screen shot with Landsat 8 data from Yellowstone

USGS Earth Explorer screen shot showing example of Landsat 8 search results over Yellowstone.

October 1, 2021

Monthly update of activity at Yellowstone Volcano for October 2021

Yellowstone’s semi-permanent GPS sensors head home for the winter.

Mike Poland, the Scientist-in-Charge of the Yellowstone Volcano Observatory, provides the October update from the warehouse at the Cascades Volcano Observatory, where the YVO field team is getting ready to head out to Yellowstone to pick up instruments that have been collecting data on ground surface

September 1, 2021

Yellowstone Volcano Update for August 2021

Yellowstone Volcano Observatory scientist-in-charge Mike Poland tells the story behind the color change of Morning Glory Pool and shows how to recognize seasonal changes in ground deformation data in this September 1, 2021 video update of volcano and earthquake activity at Yellowstone Volcano.

Morning Glory has a cautionary tale to tell about how humans can impact

Extracting pore water from Yellowstone Lake sediment cores
August 28, 2021

Extracting pore water from Yellowstone Lake sediment cores

Pore waters from Yellowstone Lake sediment cores collected in August 2021 are extracted through filtration devices into plastic syringes.  Note that the second core from the left appears light in color because the plastic core liner was etched by very hot 91°C (196°F) fluids.

Gravity coring device after sampling Yellowstone Lake sediment
August 27, 2021

Gravity coring device after sampling Yellowstone Lake sediment

Gravity coring device on the rear deck of the R/V Annie after coring the floor of Yellowstone Lake, with dark mud coating the outside of the corer.  The 100-lb. green coring head is at the top, and the bottom of the barrel has a tapered stainless steel core cutter.  Mud-filled plastic core-liners are removed from the core barrel and replaced with a new core liner

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