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Topic: Hans Oeschger


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In the News (Mon 12 May 08)

  
  EGU - Hans Oeschger
Hans Oeschger was born in Ottenbach near Zürich, Switzerland, on April 2, 1927.
Hans Oeschger was deeply troubled by the possibility of an increased greenhouse effect caused by the steady increase of atmospheric CO He was a concerned citizen who took seriously his responsibility as a scientist towards society.
Hans was excellent in conveying his enthusiasm for the scientific quest to understand the Earth System in its entire complexity to his colleagues and students.
www.copernicus.org /EGU/awards/hans_oeschger.html   (696 words)

  
  Hans Oeschger - Wikipedia, the free encyclopedia
Professor Hans Oeschger (1927 – 1998) was the founder of the Division of Climate and Environmental Physics at the Physics Institute of the University of Bern in 1963 and director until his retirement in 1992.
The Oeschger counter was the leading instrument for many years which enabled the Oeschger's team to measure the activity of naturally occurring radioisotopes (3H, 14C, 26Al, 37Ar, 39Ar, 81Kr, 85Kr).
Hans Oeschger was deeply troubled by the potential of an increased greenhouse effect caused by the steady increase of atmospheric CO2.
en.wikipedia.org /wiki/Hans_Oeschger   (321 words)

  
 Hans Oeschger 1927 - 1998   (Site not responding. Last check: 2007-10-10)
Professor Oeschger was the founder of the Division of Climate and Environmental Physics at the Physics Institute of the University of Bern in 1963 and remained its director until his retirement in 1992.
The Oeschger Counter was the leading instrument for many years which enabled the Oeschger's team to measure the activity of a host of naturally occurring radioisotopes (3H, 14C, 26Al, 37Ar, 39Ar, 81Kr, 85Kr).
Hans was excellent in conveying his enthusiasm for the scientific quest to understand the Earth System in its entire complexity to his colleagues and students.
www.climate.unibe.ch /oeschger/obituary.html   (978 words)

  
 Bambooweb: Hans Oeschger
Oeschger was the first to date the "age" of Pacific deep water.
Oeschger counter was the leading instrument for many years which enabled the Oeschger's team to measure the activity of naturally occurring radioisotopes (3H, 14C, 26Al, 37Ar, 39Ar, 81Kr, 85Kr).
Hans Oeschger was deeply troubled by the potential of an increased greenhouse effect caused by the steady increase of atmospheric CO2.
www.bambooweb.com /articles/h/a/Hans_Oeschger.html   (272 words)

  
 Tyler Environmental Prize   (Site not responding. Last check: 2007-10-10)
Hans Oeschger, Professor Emeritus of Physics, University of Bern, Switzerland, is the pioneer of gas composition measurements on polar ice.
Oeschger and his colleagues developed techniques for measuring radiocarbon on very small samples of carbon dioxide, oxygen isotopes, and the radiocarbon dating of ice.
Oeschger is a member of a number of scientific academies and honor societies including the National Academy of Sciences, Swiss Academy of the Technical Sciences, and the Swiss Academy of Natural Sciences.
www.usc.edu /dept/LAS/tylerprize/oeschger.html   (288 words)

  
 Planet Erde
Oeschger analysierte die Gaszusammensetzung der im Eis eingeschlossenen Luft und zog erstmals Rückschlüsse auf das Klima zu der Zeit, als das Eis gebildet worden war.
Hans Oeschger und sein dänischer Kollege Willi Dansgaard hatten für die nördliche Hemisphäre mit dem grönländischen Eiskern festgestellt, dass sich während der letzten Eiszeit das Klima über zwanzigmal drastisch erwärmte.
Dies machte Oeschger zu einem Wegbereiter des Klimaschutz'.
www.planeterde.de /Members/Nicole/Geschichte/oeschger/view   (527 words)

  
 Havet styrer istidens klima   (Site not responding. Last check: 2007-10-10)
Han har sammen med to kolleger fra Københavns Universitet - Gary Shaffer fra Niels Bohr Institutet og Christian Bjerrum fra Geologisk Institut - sammenholdt data fra is- og havkerner med computersimuleringer af istidens klima for at undersøge, hvordan de forskellige dele af klimasystemet spiller sammen under de hurtige klimaskift.
Teorien forklarer ifølge Steffen Olsen og hans kolleger fra Københavns Universitet for første gang alle de vigtigste forhold omkring hændelsesforløbet og strukturen af istidens klimavariabilitet.
Han slutter dog med at understrege, at studiet afslører en række koblinger mellem dele af klimasystemet, der bør studeres i større detalje - eksempelvis ved at anvende mere avancerede computermodeller.
www.dmi.dk /dmi/havet_styrer_istidens_klima   (807 words)

  
 In Deep Water - - science news articles online technology magazine articles In Deep Water   (Site not responding. Last check: 2007-10-10)
Oeschger was lecturing on the climate record contained in a mile-and-a-quarter-deep ice core extracted from the Greenland ice sheet, which is a relic of the last ice age.
Oeschger’s second strand of evidence was actual samples of that ancient air--tiny bubbles that became trapped inside the ice when it formed.
In his talk that day in Bern, Oeschger hinted that the answer might lie in the ocean, which is a giant reservoir of dissolved carbon dioxide.
www.discover.com /issues/dec-96/features/indeepwater942   (7132 words)

  
 AMS Glossary
The range of temperature change inferred for the regions where the snow was formed that ultimately produced the Greenland ice was several degrees Celsius.
Named for the ice core paleoclimatologists Willi Dansgaard and Hans Oeschger, Dansgaard–Oeschger events between 80 000 and 20 000 years ago are grouped in 10 000- to 15 000-year periods of increasing cooling.
Dansgaard, W., and H. Oeschger, 1989: Past environmental long-term records from the Arctic.
amsglossary.allenpress.com /glossary/search?id=dansgaard-oeschger-events1   (260 words)

  
 Some are Boojums » Blog Archive » Hans Oeschger’s letter to ESPR
But it did get noticed by one giant in climate science — Hans Oeschger.
Oeschger was the founder of the Division of Climate and Environmental Physics at the Physics Institute of the University of Bern.
His name is attached to the Oeschger Counter that enabled Carbon-14 dating to be applied to geophysical problems, and to the Dansgaard-Oeschger 1,500 year cycle of slow cooling and abrupt warming observed in sediments and ice cores.
www.someareboojums.org /blog/?p=12   (1233 words)

  
 The Scientist : Notebook   (Site not responding. Last check: 2007-10-10)
Three climatologists-Willi Dansgaard, a professor, emeritus, of geophysics at the University of Copenhagen, Denmark; Claude Lorius, chairman of the French Institute of Polar Research and Technology, Grenoble; and Hans Oeschger, a professor, emeritus, of physics at the University of Bern, Switzerland-were honored for their work recording global climate change in ancient polar ice cores.
Lorius, 63, and Oeschger, 68, pioneered the use of atmospheric gases like carbon dioxide and methane trapped in ice cores to track past changes in global temperature.
The Tyler Prize, administered by the University of Southern California, was established by the late John and Alice Tyler to recognize significant achievements in environmental science and protection.
www.the-scientist.com /article/display/17046   (1523 words)

  
 Kicking the Carbon Habit
As a graduate student in the 1950s, Oeschger had invented and built a novel instrument called the proportional counter to detect and measure ultralow levels of radioactivity; unlike a Geiger counter, it was capable of identifying the type of radiation prompting a signal.
When Oeschger first was turning his attention to the carbon dioxide trapped in ice, as noted, it had turned out that radiocarbon dating was really not practical for long-term ice dating.
As early as 1980, Oeschger and colleagues published an analysis in the journal Radiocarbon of the carbon dioxide in air bubbles in the Byrd and Camp Century cores, and found that concentrations were significantly lower during the last glaciation than afterward, possibly as much as 50 percent lower.
www.columbia.edu /cu/cup/publicity/sweetexcerptch5.html   (8097 words)

  
 [No title]   (Site not responding. Last check: 2007-10-10)
Oeschger was particularly struck by a rapid rise in the atmospheric concentration of CO at the end of the last ice age, which others had recently discovered in ice and deep-sea cores.
Oeschger reflected that Broecker's biochemical mechanism would take thousands of years to operate, too slow for the rapid changes found in ice cores.
Oeschger was one of the first to worry that a switch between ocean circulation modes might be set off by the greenhouse gases that humanity was adding to the atmosphere.
www.aip.org /history/climate/2-Oceans.htm   (4708 words)

  
 NCPA | Study #279, The Ice Cores
Denmark’s Willi Dansgaard and Switzerland’s Hans Oeschger were among the first people in the world to see two mile-long ice cores that brought up 250,000 years of the Earth’s frozen, layered climate history.
Dansgaard and Oeschger were correct when they told us that the climate shifts were moderate, rising and falling over a range of about 4° C in northern Greenland, with very little temperature change at the equator — and only half a degree when averaged over the northern hemisphere.
However, Dansgaard and Oeschger noted, “Since the solar radiation is the only important input of energy to the climatic system, it is most obvious to seek an explanation in solar processes.
www.ncpa.org /new/pub/st/st279/st279b.html   (963 words)

  
 Oeschger Receives the 1997 Revelle Medal
Hans A. Oeschger was awarded the Roger Revelle Medal at the AGU Fall Meeting Honors Ceremony, which was held on December 10, 1997, in San Francisco, California.
The Revelle Medal is given for sustained and continued superior contributions to the science of climate dynamics and to predictions of expected climate changes.
"Roger Revelle would be proud to learn that Hans Oeschger was to receive the medal bearing his name, because Hans' research has encompassed so many important aspects of the Earth's carbon cycle.
www.agu.org /inside/awards/bios/oeschger_hansa.html   (1818 words)

  
 Homepage Brugg-Online - Portal Region Brugg Windisch
Hans Oeschger, der die Jury präsidierte und die Vorbereitung und Vorprüfung des Projektes übernommen hatte, freute sich: «Die 29 eingereichten Projekte überzeugten alle durch ihre Qualität.» In drei Rundgängen wurden schliesslich noch sieben Projekte zur genaueren Analyse ausgewählt.
Hans Oeschger meinte: «Ganz besonders gefreut hat uns, dass der Gewinner des Wettbewerbs in der Region ansässig ist, es handelt sich nämlich um Schmidlin & Suter Architekten von Brugg.» Max Suter betonte.
Dass wir die jetzigen Werkstätten und allenfalls sogar Benutzer derselben kennen, war dagegen eher hinderlich.» Hans Oeschger ist überzeugt: «Das Projekt ‹werkstück› bildet den idealen Rahmen für die neue Werkstatt.
www.brugg-online.ch /dynamic/index.cfm?fuseaction=home.showArt&id_art=5833&vsprache=de&CFID=7292685&CFToken=41168192   (479 words)

  
 COSIS.net - Information - ML11 Hans Oeschger Medal Lecture
Hans Oeschger at the University of Bern, where he obtained his doctorate in 1966.
In collaboration with colleagues from the University of Bern, he developed a method to measure the concentration of trace gases of small ice samples.
The Session Organizers have therefore the sole responsibility that this information is true and accurate at the date of publication, and the conference organizer cannot accept any legal responsibility for any errors or omissions that may be made, and he makes no warranty, expressed or implied, with regard to the material published.
www.cosis.net /members/meetings/sessions/information.php?p_id=207&s_id=3783   (487 words)

  
 GL: Climate News
The whales are reportedly shifting their diet to otters as the number of harbor seals and sea lions have declined in Alaskan waters.
Swiss geologist Hans Oeschger died on December 25 after a long illness.
Oeschger sounded early warnings about the effect greenhouse gases could have on the carbon cycle, or the exchange of carbon between living organisms and the nonliving environment.
ces.iisc.ernet.in /hpg/envis/doc98html/globalcl9915.html   (900 words)

  
 [No title]
Ginenthal claims that temperature swings found in Greenland ice are not reflected in climate records on land, but the very source he cites to illustrate this belies the claim.
Speaking of the Dye 3 ice core, Hans Oeschger writes, "The shifts of 18O at the transition to the Holocene 15,000 and 10,000 years B.P. are also recorded in carbonate deposits of Central European lakes.
Hans Oeschger, "Long-Term Climate Stability: Environmental System Studies," in S. Fred Singer, ed., The Ocean in Human Affairs (N.Y., Paragon House, 190), p.
saturniancosmology.org /files/ice/smmia6.txt   (15529 words)

  
 Don't play with me, pork chop Can't do a damn thing about it
In fact, S. Fred Singer (University of Virginia) and Dennis Avery (Hudson Institute) conclude that global warming and cooling seem to be part of a 1,500-year cycle of moderate temperature swings.
Scientists got the first unequivocal evidence of a continuing moderate natural climate cycle in the 1980s, when Willi Dansgaard of Denmark and Hans Oeschger of Switzerland first saw two mile-long ice cores from Greenland representing 250,000 years of Earth's frozen, layered climate history.
From their initial examination, Dansgaard and Oeschger estimated the smaller temperature cycles at 2,550 years.
michaelgreenspan.powerblogs.com /posts/1128094274.shtml   (291 words)

  
 UMass Climate System Research Center
Our research is focused on the climate system, climatic variability and global change issues, from contemporary climate variations, their causes and consequences, to paleoclimatic and paleoenvironmental changes.
Ray Bradley, Distinguished Professor in the Department of Geosciences, was awarded the Hans Oeschger Medal of the European Geosciences Union, for "his contribution to paleoclimate reconstruction from continental archives and for being instrumental in the multi-proxy approach leading to the quantification of climate change over the last millennium".
Bradley received the award at a ceremony in Vienna, Austria on April 17th.
www.geo.umass.edu /climate   (119 words)

  
 FindFox: Oeschger   (Site not responding. Last check: 2007-10-10)
radsport-forum.de Das Radsport-Archiv Freitag-Nacht - Bahnrennen in Köln Visagistin Andra Oeschger Radsport-Aktiv CD´s zum selber zusammenstellen bei Leif Weispfennig Radsport-News
Todestag von Hans Oeschger Im Eis der alpinen GletscherPolargebiete sah der Klimaphysiker Hans Oeschger als einer der ersten den Schlüssel zumder Klimageschichte unseres Planeten.
Klimaforscher wie der Schweizer Hans Oeschger sich Eisbohrkerne aus Grönland genauerbedeuten sie?" Heute gelten Oeschger und Dansgaard, ein Däne, als Pionieremonotoner Dauerfrostperiode zum Einsturz.
www.findfox.de /Oeschger   (512 words)

  
 Scope 35 - Scales and Global Change, Chapter 15, The Ocean System-Ocean / Climate and Ocean / CO2 Interactions
Neftel, A., Oeschger, H., and Suess, H. Secular non-random variations of cosmogenic carbon-14 in the terrestrial atmosphere.
Neftel, A., Moor, E., Oeschger, H., and Stauffer, B. Evidence from polar ice cores for the increase in atmospheric CO in the past two centuries, Nature, 315, No. 6014, 45-47.
Oeschger, H., Siegenthaler, U., Schotterer, U., and Gugelmann, A. A box diffusion model to study the carbon dioxide exchange in nature.
www.icsu-scope.org /downloadpubs/scope35/chapter15.html   (9188 words)

  
 Essay Depot - Climate Change
Broecker first became very interested in the effect of the conveyor belt on climate change in 1984 after a lecture by Hans Oeschger — University of Bern.
Oeschger was studying ice-cores from the Greenland ice sheet.
These ice cores are a unique record of what has happened to the weather, for the last hundred thousand years.
www.essaydepot.com /essayme/2724/index.php   (1913 words)

  
 Tyler Laureates
Is recognized for its contribution to the advancement of botanical sciences in Latin America by the unprecedented program of courses, student exchanges, and collaborative research projects and especially by promoting regional pride, self-sufficiency and strong and healthier international relations among the countries of Latin America.
Hans Herren, Yoel Margalith, and Sir Richard Doll
The wasp brought the mealybug under full control within 10 years, preventing widespread famine and the death of an estimated 20 million people.
www.usc.edu /admin/provost/tylerprize/previous.html   (2606 words)

  
 b41b-01 in fm99   (Site not responding. Last check: 2007-10-10)
This success was possible by replacing the traditional multi-box models by their box-diffusion model where the transport of carbon and other tracers from the surface ocean to the abyss is described by a diffusion law; this results in fundamentally different dynamics than that of the traditional box models.
Consequently, Oeschger and his co-workers were able to faithfully project the evolution of atmospheric CO2 in response to anthropogenic carbon input.
In 1980, Oeschger pointed out that overall the land biota is a small carbon sink and that this would require a considerable stimulation of plant productivity if carbon released by land use changes is to be balanced.
www.agu.org /cgi-bin/SFgate/SFgate?&listenv=table&multiple=1&range=1&directget=1&application=fm99&database=/data/epubs/wais/indexes/fm99/fm99&maxhits=200&="B41B-01"   (13065 words)

  
 2nd-SSC-meeting
GNIP scientific steering committee meeting took place in Hamburg, 7 September 2000 after the workshop “ In Memoriam Hans Oeschger: Towards an Isotope Climatology”.
The World Climate Research Programme (WCRP) was officially represented by Mr.
A workshop "In Memoriam H. Oeschger: Towards an Isotope Climatology" was organised by the Max-Planck Institute for Meteorology, in conclusion of five years of efforts to bring together climate and isotope hydrology communities working on the use of isotopes in precipitation for climate change studies.
isohis.iaea.org /userupdate/description/reportsscsecond.htm   (1358 words)

  
 European Geophysical Society - CIRS   (Site not responding. Last check: 2007-10-10)
This medal has been established by the Interdisciplinary Working Group (IWG) on Palaeoclimatology (PC) in recognition of the scientific achievement of Hans Oeschger.
It is reserved for scientists for their outstanding achievements in ice research and/or short term climatic changes (past, present, future).
EGS Hans Oeschger Medallist - 2003 : Sigfus Johnsen
www.cirs-tm.org /prix/premios.php?id=35   (72 words)

  
 The Scientist : U.S. Ice Core Scientists Decide To Go It Alone   (Site not responding. Last check: 2007-10-10)
Frustrated by the apparent impasse, a few senior statesmen in the field of glaciology got together one cold January day in 1987 to try and solve the problem.
While the New York Giants hammered the Denver Broncos in the Super Bowl, Wally Broecker of the Lamont-Doherty Geological Observatory, Dansgaard, Hans Oeschger of the University of Bern in Switzerland, and a few others hammered out a plan for two cores.
For Chester Langway, Jr., who helped assemble the original ice coring triumvirate that included Dansgaard and Oeschger but has since moved on to other projects, the fun is gone.
www.the-scientist.com /article/display/9622   (1845 words)

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