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:12/22/2014)... Dec. 22, 2014  The 2014 Holiday Season ... industry as Acuity Market Intelligence reports that the ... be open. Acuity forecasts that intensifying demand for ... incorporate biometrics will drive a global market of ... devices by 2020.   According to ...
(Date:12/19/2014)... 18, 2014 Research and Markets ( ... "Micro Market Monitor: North America Perimeter Security Systems Market" ... http://photos.prnewswire.com/prnh/20130307/600769 The North American perimeter ... of 3.6% from 2014 to 2019. Although the U.S. ... Canada is expected to grow at ...
(Date:12/19/2014)... 18, 2014   LaunchKey , the first decentralized ... and Internet of Things era, today announced the close ... round was led by Metamorphic Ventures with participation from ... VegasTechFund, and others.  LaunchKey has raised $4 million to ... its team and bring LaunchKey to market in 2015. ...
Breaking Biology News(10 mins):First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 2Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 2Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 3LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3
... Scientists have uncovered the flu,s secret formula for effectively ... lies with the flu,s unique replication process, which has ... spread and adapt to its host environment, but not ... flu,s demise (catastrophic mutagenesis). These findings overturn long-held assumptions ...
... materials to bring forth the best properties of both ... the Bronze Age. In the latest successful merger, researchers ... the University of Maryland (UM) and the U.S. Food ... combine two substances that individually have generated interest for ...
... June 9 -- CoLucid Pharmaceuticals, Inc., ("CoLucid"), ... central nervous system disorders, today announced that its ... (also known as COL-144), a selective 5-HT1F receptor ... acute migraine attacks, as documented in a Phase ...
Cached Biology News:Flu's evolution strategy strikes perfect balance 2Flu's evolution strategy strikes perfect balance 3Liposome-hydrogel hybrids: No toil, no trouble for stronger bubbles 2CoLucid Pharmaceuticals, Inc. announces study data documenting oral efficacy of lasmiditan (COL-144), a selective 5-HT1F receptor agonist, in the treatment of acute migraine attacks 2
(Date:12/19/2014)... The empty capsules market is experiencing ... and technological innovations in the empty capsules market. ... the growth of the empty capsules market. , ... Scope of Report , The report will enrich ... firms to gauge the pulse of the market ...
(Date:12/19/2014)... Dec. 18, 2014   ISN has released ... Performance Indicators publication series. With data aggregated ... reported in 2013 within its online contractor management platform, ... key performance indicator (KPI) statistics. The ... publication is available in two industry specific ...
(Date:12/17/2014)... December 16, 2014 “Never say, ... Philipps- Universität Marburg’s Department of Physics, advises young ... the newly released SPIE Women in Optics ... too shy to ask questions.” , In the ... and mathematics) occupations ranging from university professor and ...
(Date:12/17/2014)... Texas (PRWEB) December 17, 2014 ... on Global Quartz Tubing industry. For an overview ... definition, classification, application, industry chain structure, industry overview, ... quartz tubing industry has witnessed rapid ... a number of acquisitions. This report mentions quartz ...
Breaking Biology Technology:Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 2Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 3Empty Capsules Market Hit to Reach $1,820 Million by 2019 - New Research Report by MarketsandMarkets 4ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 2ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 3Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 32020 Quartz Tubing Market: Global Development & Forecasts Analysis Now at DeepResearchReports.com 2
... our mobile phone to buy bus and train tickets and ... by just presenting an electronic card or passport, thanks to ... us hate standing in queues or filling out forms, however ... hours of our time running to offices and waiting for ...
... NEW YORK , June 25 ... or the "Company"), an international biopharmaceutical,company with operations in the ... entered into definitive agreements with certain accredited,investors (the "Investors") to ... gross offering price of $5 million . Each unit ...
... , June 25 Caliper Life Sciences, Inc. (Nasdaq: ... drug discovery and life sciences research, hosted its 2010 annual Customers ... 10. This thought-leadership conference is focused on sharing knowledge, insights, and ... the next generation of breakthrough diagnostics and therapies. , ...
Cached Biology Technology:Really smart card project scoops EUREKA 2010 Innovation Award 2Really smart card project scoops EUREKA 2010 Innovation Award 3Really smart card project scoops EUREKA 2010 Innovation Award 4NeoStem Raises $5 Million in Registered Direct Offering 2NeoStem Raises $5 Million in Registered Direct Offering 3NeoStem Raises $5 Million in Registered Direct Offering 4Caliper Owners Group Meeting Showcases Critical Role of Biopharma and Academic Researchers for Improving Healthcare and Quality of Life 2Caliper Owners Group Meeting Showcases Critical Role of Biopharma and Academic Researchers for Improving Healthcare and Quality of Life 3
... provides both long and short-term enriched housing ... in both quarantine and non-quarantine settings on ... also available utilizing our state-of-the-art social housing ... equipped with on site CDC quarantine facilities. ...
... This exceptionally sensitive nucleic acid gel stain ... low background in gels, making it ideal for ... standard UV transilluminators. SYBR Green I nucleic ... capillary electrophoresis, real-time PCR assays and bandshift ...
Synonym: modified Grace's Insect medium...
Schneider's Drosophila - Insect medium...
Biology Products: