ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Articles  (6,883)
  • Springer  (2,301)
  • Wiley  (2,292)
  • American Geophysical Union  (2,290)
  • American Association for the Advancement of Science (AAAS)
  • American Meteorological Society
  • American Physical Society (APS)
  • Springer Nature
  • 2010-2014  (6,883)
  • 2000-2004
  • 1995-1999
  • 1985-1989
  • 1980-1984
  • 1960-1964
  • 1955-1959
  • 1935-1939
  • 1930-1934
  • 2014  (3,427)
  • 2012  (3,456)
  • Geophysical Research Letters  (2,292)
  • Chinese Science Bulletin  (959)
  • 41064
  • 4905
  • Geosciences  (4,582)
  • Natural Sciences in General  (2,301)
  • Computer Science
Collection
  • Articles  (6,883)
Source
Publisher
  • Springer  (2,301)
  • Wiley  (2,292)
  • American Geophysical Union  (2,290)
  • American Association for the Advancement of Science (AAAS)
  • American Meteorological Society
    • +
Years
  • 2010-2014  (6,883)
  • 2000-2004
  • 1995-1999
  • 1985-1989
  • 1980-1984
    • +
Year
Journal
Topic
  • Geosciences  (4,582)
  • Natural Sciences in General  (2,301)
  • Computer Science
  • Physics  (4,582)
  • 1
    facet.materialart.
    Unknown
    Differentiating flavors of the Indian Ocean Dipole using dominant modes in tropical Indian Ocean rainfall (2014)
    Wiley
    Details
    Publication Date: 2014-12-07
    Description: Phase-locked to austral winter and spring, canonical positive Indian Ocean Dipoles (pIODs) generally peak in spring. In recent decades, there has been an increase in unseasonable pIODs which, different from canonical pIODs, peak and decay by September. Distinguishing unseasonable pIODs from canonical pIODs is important, as conditions leading to more frequent unseasonable events are projected to persist in a warming climate. Here using superimposition of the first two seasonally evolving dominant modes of tropical Indian Ocean rainfall variability, we differentiate these types of pIODs. The first mode reflects characteristics of canonical pIODs, in which anomalies intensify with seasonal evolution. However, the second mode, with cool and dry anomalies extending from the eastern pole, reverses from winter to spring, signifying the demise of unseasonable pIODs. Processes embedded in the second mode reflect timing of propagation in equatorial Kelvin waves, and their relative importance to the first mode, in generating different pIODs.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    facet.materialart.
    Unknown
    Tracking major storms from microseismic and hydroacoustic observations on the seafloor (2014)
    Wiley
    Details
    Publication Date: 2014-12-15
    Description: Ocean wave activity excites seismic waves that propagate through the solid earth, known as microseismic noise. Here we use a network of 57 ocean-bottom seismometers (OBS) deployed around La Réunion Island in the southwest Indian Ocean to investigate the noise generated in the secondary microseismic band as a tropical cyclone moved over the network. Spectral and polarization analyses show that microseisms strongly increase in the 0.1 - 0.35 Hz frequency band as the cyclone approaches, and that this noise is composed of both compressional and surface waves, confirming theoretical predictions. We infer the location of maximum noise amplitude in space and time, and show that it coincides roughly with the location of maximum ocean-wave interactions. Although this analysis was performed retrospectively, microseisms recorded on the seafloor can be considered a novel source of information for future real-time tracking and monitoring of major storms, complementing atmospheric, oceanographic and satellite observations.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 3
    facet.materialart.
    Unknown
    Galápagos Coral Reef Persistence after ENSO Warming Across an Acidification Gradient (2014)
    Wiley
    Details
    Publication Date: 2014-12-15
    Description: Anthropogenic CO 2 is causing warming and ocean acidification. Coral reefs are being severely impacted, yet confusion lingers regarding how reefs will respond to these stressors over this century. Since the 1982-83 El Niño-Southern Oscillation warming event, the persistence of reefs around the Galápagos Islands has differed across an acidification gradient. Reefs disappeared where pH 〈 8.0 and aragonite saturation state (Ω arag ) ≤ 3 and have not recovered, whereas one reef has persisted where pH 〉 8.0 and Ω arag  〉 3. Where upwelling is greatest, calcification by massive Porites is higher than predicted by a published relationship with temperature despite high CO 2 , possibly due to elevated nutrients. However, skeletal P/Ca, a proxy for phosphate exposure, negatively correlates with density ( R  = -0.822, p  〈 0.0001). We propose that elevated nutrients have the potential to exacerbate acidification by depressing coral skeletal densities and further increasing bioerosion already accelerated by low pH.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 4
    facet.materialart.
    Unknown
    Changes to the temporal distribution of daily precipitation (2014)
    Wiley
    Details
    Publication Date: 2014-12-15
    Description: Changes to the temporal distribution of daily precipitation were investigated using a dataset of 12,513 land-based stations from the Global Historical Climatology Network (GHCN). The distribution of precipitation was measured using the Gini index (which describes how uniformly precipitation is distributed throughout a year) and the annual number of wet days. The Mann-Kendall test and a regression analysis were used to assess the direction and rate of change to both indices. Over the period of 1976-2000, East Asia, central America and Brazil exhibited a decrease in the number of both wet and light precipitation days, and eastern Europe exhibited a decrease in the number of both wet and moderate precipitation days. In contrast, the USA, southern South America, western Europe and Australia exhibited an increase in the number of both wet and light precipitation days. Trends in both directions were field significant at the global scale.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 5
    facet.materialart.
    Unknown
    Effects of the post-perovskite phase change on the observed geoid (2014)
    Wiley
    Details
    Publication Date: 2014-12-15
    Description: In the lowermost mantle, seismic velocity variations beneath Pacific margins have been related to the perovskite (pv) to post-perovskite (pPv) phase transition. We investigate the influence of this phase transformation on the geoid using 3D spherical mantle circulation models based on a seismic tomography model and strong lateral viscosity variations in the lower mantle. We demonstrate that the geoid anomalies are strongly affected by the presence of pPv because of phase-dependent viscosity changes relative to the surrounding mantle. Whereas geoid heights above subduction zones are increased for high-viscosity pPv, the presence of weak pPv reduces them, thereby improving the fit to the observed geoid. An investigation using two different tomography models, different pPv density contrasts, and the presence or absence of a global thermal boundary layer and of lateral viscosity variations in the lower mantle demonstrate the various effects of weak pPv on the geoid.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 6
    facet.materialart.
    Unknown
    Interdecadal Pacific variability and eastern Australian mega-droughts over the last millennium (2014)
    Wiley
    Details
    Publication Date: 2014-12-15
    Description: The Interdecadal Pacific Oscillation (IPO) influences multidecadal drought risk across the Pacific, but there are no millennial-length, high resolution IPO reconstructions for quantifying long-term drought risk. In Australia, drought risk increases in positive phases of the IPO, yet few suitable rainfall proxies and short (~100 y) instrumental records mean large uncertainties remain around drought frequency and duration. Likewise, it is unknown whether mega-droughts have occurred in Australia's past. In this study, an atmospheric teleconnection in the Indian Ocean mid-latitudes linking East Antarctica and Australia is exploited to produce the first accurate, annually dated millennial-length IPO reconstruction from the Law Dome (East Antarctica) ice core. Combined with an eastern Australian rainfall proxy from Law Dome, the first millennial-length Australian mega-drought (〉5 y duration) reconstruction is presented. Eight mega-droughts are identified including one 39 y drought (AD 1174–1212), which occurred during an unprecedented century of aridity (AD 1102–1212).
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 7
    facet.materialart.
    Unknown
    The Source Altitude, Electric Current, and Intrinsic Brightness of Terrestrial Gamma Ray Flashes (2014)
    Wiley
    Details
    Publication Date: 2014-11-08
    Description: Many details of how thunderstorms generate terrestrial gamma-ray flashes (TGFs) and other forms of high energy radiation remain uncertain, including the basic question of where they are produced. We exploit the association of distinct low frequency radio emissions with generation of terrestrial gamma-ray flashes (TGFs) to directly measure for the first time the TGF source altitude. Analysis of two events reveals source altitudes of 11.8 ± 0.4 km and 11.9 ± 0.9 km. This places the source region in the interior of the thunderstorm between the two main charge layers, and implies an intrinsic TGF brightness of approximately 10 18 runaway electrons. The electric current in this non-traditional lightning process is found to be strong enough to drive nonlinear effects in the ionosphere, and in one case is comparable to the highest peak current lightning processes on the planet.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 8
    facet.materialart.
    Unknown
    Counteracting the climate effects of volcanic eruptions using short-lived greenhouse gases (2014)
    Wiley
    Details
    Publication Date: 2014-11-08
    Description: A large volcanic eruption might constitute a climate emergency, significantly altering global temperature and precipitation for several years. Major future eruptions will occur, but their size or timing cannot be predicted. We show, for the first time, that it may be possible to counteract these climate effects through deliberate emissions of short-lived greenhouse gases, dampening the abrupt impact of an eruption. We estimate an emission pathway countering a hypothetical eruption three times the size of Mt Pinatubo in 1991. We use a global climate model to evaluate global and regional responses to the eruption, with and without counter emissions. We then raise practical, financial and ethical question related to such a strategy. Unlike the more commonly-discussed geoengineering to mitigate warming from long-lived greenhouse gases, designed emissions to counter temporary cooling would not have the disadvantage of needing to be sustained over long periods. Nevertheless, implementation would still face significant challenges.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 9
    facet.materialart.
    Unknown
    Rayleigh wave group velocity distributions for East Asia using ambient seismic noise (2014)
    Wiley
    Details
    Publication Date: 2014-11-08
    Description: Vertical component data from 206 broadband seismometer stations from Korean networks KIGAM and KMA, the Japanese F-net network, and the Chinese IC and NECESSArray networks are collected for the year 2011 and the ambient seismic noise is analyzed. Rayleigh wave group velocity distribution maps are created in the period range 10 to 70 seconds. Our results are largely consistent with previous studies of the area, but provide greater detail in the Korean peninsula and the East Sea (Sea of Japan). Low group velocities are observed in the Ulleung basin, and the Chubu-Kanto and Kyushu regions in Japan. At 10 s period, sediment basins in the East Sea appear as low group velocity regions relative to higher group velocity continental regions. At periods longer than 40 s, a low group velocity region emerges in the Ulleung basin region, and is bounded by the Korean peninsula.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 10
    facet.materialart.
    Unknown
    EGM TIM RL05: An Independent Geoid with Centimeter Accuracy Purely Based on the GOCE Mission (2014)
    Wiley
    Details
    Publication Date: 2014-11-08
    Description: After more than 4.5 years in orbit, the Gravity field and steady-state Ocean Circulation Explorer (GOCE) mission ended with the reentry of the satellite on 11 November 2013. This publication serves as a reference for the 5th gravity field model based on the time-wise approach (EGM_TIM_RL05), a global model only determined from GOCE observations. Due to its independence of any other gravity data, a consistent and homogeneous set of spherical harmonic coefficients up to degree and order 280 (corresponding to spatial resolution of 71.5 km on ground) is provided including a full covariance matrix characterizing the uncertainties of the model. The associated covariance matrix realistically describes the model quality. It is the first model which is purely based on GOCE including all observations collected during the entire mission. The achieved mean global accuracy is 2.4 cm in terms of geoid heights and 0.7 mGal for gravity anomalies at a spatial resolution of 100 km.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...