Navigation Links
AGU journal highlights -- July 16, 2013
Date:7/16/2013

4. Characterizing the dynamics of geyser eruptions

Some geysers have predictable eruptions that make them ideal for study. Understanding geyser eruption dynamics can provide insight into other intermittent natural processes, such as volcanic eruptions, but most studies of geysers have focused on the processes that trigger geyser eruption. The eruption jet dynamics are less well characterized.

In one of the most comprehensive studies of geyser eruption dynamics to date, over the course of a 4-day experiment at Lone Star Geyser in Yellowstone National Park, Karlstrom et al. measured water discharge, acoustic emissions, and infrared intensity, and recorded visible and infrared video of the geyser. They selected Lone Star Geyser because it has relatively frequent and vigorous eruptions, about every 3 hours.

They find that the eruption cycle has four distinct phases: first, a main eruptive phase with liquid and steam fountaining and maximum jet velocities of 16 to 28 meters per second (36 to 63 miles per hour), concluded by a period in which the ratio of erupting steam to liquid increases; second, a posteruption phase with no discharge but periodic acoustic and infrared emissions; third, a recharge period during which the geyser cone refills; and fourth, a "preplay" period characterized by a series of 5- to 10-minute pulses of steam, periodic acoustic emissions, and small volumes of liquid water discharge. The authors also estimate the total heat output from the geyser to be about 1.4 megawatts, which is less than 0.1 percent of the total heat output from Yellowstone caldera.

Source: Journal of Geophysical Research-Solid Earth, doi:10.1002/jgrb.50251, 2013 http://onlinelibrary.wiley.com/doi/10.1002/jgrb.50251/abstract

Title: Eruptions at Lone Star Geyser, Yellowstone National Park: Energetics and eruption d
'/>"/>

Contact: Mary Catherine Adams
mcadams@agu.org
202-777-7530
American Geophysical Union
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9

Related biology news :

1. Springer announces impact factor increases for journals in 2012
2. Journal highlights Arctic sea ice study by UM professor
3. Elsevier launches open access journal: GeoResJ
4. Elsevier launches new open access journal: Translational Proteomics
5. Frontiers launches new open-access journal in physics
6. Frontiers launches new open-access journal in Bioengineering and Biotechnology
7. New ACS journal Environmental Science and Technology Letters to rapidly publish urgent research
8. GSAs top geoscience journal posts 9 new articles
9. Genetics Society of Americas GENETICS journal highlights for May 2013
10. New evidence shows PubMed Central undermines journal usage
11. Genetics Society of Americas Genetics journal highlights for April 2013
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/30/2014)... JOSE, Calif. , July 30, 2014 /PRNewswire/ ... partnership with the United States Air Force Research ... proposed by Binghamton University ... human performance monitoring (HPM). The $425,000 project, with ... electronics packaging firm i3 Electronics, Inc. ( ...
(Date:7/29/2014)... the University of Bristol,s Nutrition and Behaviour Unit (NBU) ... account when planning meals. , The research, to be ... Behavior Conference (SSIB 2014) in Seattle, USA this week ... , The team was led by Professor Jeff Brunstrom, ... , As part of a Biotechnology and Biological Sciences ...
(Date:7/29/2014)... of science, researchers sometimes need to get back ... just that to study the impacts of the ... reef ecosystems at two remote locations in the ... tracking and computer simulation, McCauley, an assistant professor ... Biology, and his colleagues sought to understand whether ...
Breaking Biology News(10 mins):Nano-Bio Manufacturing Consortium Awards Funding to Binghamton University for Development of Electronics and Biometric Sensor Platforms 2Nano-Bio Manufacturing Consortium Awards Funding to Binghamton University for Development of Electronics and Biometric Sensor Platforms 3Underwater elephants 2Underwater elephants 3
... of food poisoning from the food chain is the aim ... Research Council (BBSRC) and the world-leading UK-based poultry breeding company ... cases of food poisoning a year in England and Wales ... 600 million a year. It is usually passed to humans ...
... Feb. 15, 2012 /PRNewswire-iReach/ -- The ... Groupware Collaborative, announced a new round of speakers and ... Forum , part of HIMSS12 on February 23, 2012 ... exhibition from the Healthcare Information and Management Systems Society ...
... airborne laser technology, satellite mapping, and ground-based plot surveys, ... high-resolution estimates of carbon stocks in remote and fragile ... to map carbon stocks in rugged geographic regions and ... employed to support conservation and climate-change mitigation under the ...
Cached Biology News:New research to help eliminate most common food poisoning bug 2Collaborative Health Consortium Announces eCollaboration Forum Final Agenda for HIMSS 2012 2Collaborative Health Consortium Announces eCollaboration Forum Final Agenda for HIMSS 2012 3 Super high-resolution carbon estimates for endangered Madagascar 2
(Date:7/30/2014)... , July 30, 2014   Wyle ... Fully Integrated Lifecycle Mission Support Services (FILMSS) contract ... (NASA). Under the terms of the contract, Wyle ... at Moffett Field, Calif. In particular, Wyle will ... flight development projects on the International Space Station ...
(Date:7/30/2014)... STONY BROOK, NY (PRWEB) July 30, 2014 ... (OTCQB: APDN), (Twitter: @APDN), a biotechnology firm that provides ... Dr. Michael E. Hogan, Ph.D. Vice President of Life ... in mid-September. , Dr. Hogan will lead ... to form business relationships with biotech and healthcare customers, ...
(Date:7/30/2014)... PA (PRWEB) July 30, 2014 Vycom ... family of products, designed to meet Factory Mutual (FM) ... equipment materials such as wet benches, process tools, fume ... worker safety and damage to semiconductor wafers used in ... provides a flame-retardant PVC solution with excellent workability and ...
(Date:7/30/2014)... 2014  Orexigen Therapeutics, Inc. (Nasdaq: OREX ... List of Outstanding Issues (LOI) from the European Medicines ... for the NB32 Marketing Authorization Application (MAA). NB32 (naltrexone ... drug candidate being evaluated for weight loss. ... point were adequately addressed by the Company based in ...
Breaking Biology Technology:Wyle Wins NASA's Fully Integrated Lifecycle Mission Support Services Contract 2Dr. Michael E. Hogan, Ph.D., Joins Applied DNA Sciences as Vice President, Life Sciences 2Dr. Michael E. Hogan, Ph.D., Joins Applied DNA Sciences as Vice President, Life Sciences 3Vycom Announces Flametec® Thermax PVC (FM4910 Listed) For a Variety of Clean Room Applications with Excellent Workability and Aesthetics 2Orexigen Receives CHMP Day 180 List of Outstanding Issues 2Orexigen Receives CHMP Day 180 List of Outstanding Issues 3
... 2011 Zacharon Pharmaceuticals, Inc. today announced that ... collaboration with Pfizer Inc. to develop drugs for ... value of the collaboration to Zacharon is approximately ... development of compounds that may be discovered using ...
... as well as students working in micro-electromechanical systems ... developing common MEMS fabrication processes. A fundamental, comprehensive ... to be an important game-changing asset for the ... Handbook is an exhaustive design reference for researchers ...
... and DANVILLE, Pa., April 6, 2011 Definiens, the ... life sciences firm specializing in advanced cancer diagnostics, today ... tool for the diagnosis of cancer. Cernostics will apply ... tests for the treatment of a variety ...
Cached Biology Technology:Zacharon Pharmaceuticals Announces Research and Development Collaboration With Pfizer to Develop Drugs for Multiple Rare Disorders 2Zacharon Pharmaceuticals Announces Research and Development Collaboration With Pfizer to Develop Drugs for Multiple Rare Disorders 3MEMS Materials and Processes Handbook -- a comprehensive, practical resource 2Definiens and Cernostics Partner to Develop Multiplexed Cancer Diagnostic Tests 2Definiens and Cernostics Partner to Develop Multiplexed Cancer Diagnostic Tests 3