GLORIA

GEOMAR Library Ocean Research Information Access

feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 258 (1975), S. 697-698 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The revised two-dimensional (zonal) atmospheric model (ZAM2)1 uses basic conservation equations and parametrises the meridional transport by horizontal eddies using both model dependent and prescribed diffusion coefficients2*3. Vertically, the atmosphere is divided into nine pressure levels, ...
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 291 (1981), S. 47-49 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Earlier numerical model experiments2'4, suggesting that the main effect of man's past activities should have been a general increase of surface albedo resulting in lower surface temperatures, were not designed to incorporate more than single impacts, such as tropical deforestation or ...
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Climatic change 6 (1984), S. 365-376 
    ISSN: 1573-1480
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Suggestions have persisted over the past few years that, contary to conventional estimates, increasing levels of atmospheric carbon dioxide will produce negligible warming of the earth's surface, or might even result in surface cooling. In the present paper we reexamine several aspects of these suggestions and illustrate that they are either founded in various violations of the first law of thermodynamics, or that they are based upon misinterpretations of historical data.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1434-4483
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Zusammenfassung Zur Bestimmung der monatlichen Verteilung der Strahlungsbilanz in Südkalifornien unter Berücksichtigung des Geländeverlaufs wurde ein vorgängig entwickeltes Modell [9] benützt, das auf der theoretischen Kenntnis der physikalischen Beeinflussung der Sonnenenergie durch die Atmosphäre und ihrer Umwandlung am Erdboden beruht. Die in den Gleichungen verwendeten Parameter sind Wolkenbedeckung, Wolkenform, Erdbodenalbedo, Gesamtwasserdampfgehalt, Erdoberflächentemperatur, Neigung und Orientierung des Geländes, Höhe über Meer und Stadtdunst. Es wurde ein bemerkenswerter Unterschied zwischen relativ hohen Strahlungsbilanzwerten für die Küste und die Küstenberge und niedrigeren Werten für die östlichen Teile Südkaliforniens gefunden.
    Abstract: Résumé Pour déterminer la répartition mensuelle du bilan de radiation dans le sud de la Californie en tenant compte des conditions topographiques, on utilise un modèle développé récemment [9]. Ce dernier repose sur la connaissance théorique des modifications physiques que subit l'énergie solaire en traversant l'atmosphère et de sa transformation au sol. Les paramètres utilisés dans ces équations sont: la nébulosité, la forme des nuages, l'albédo du sol, le contenu total de l'air en vapeur d'eau, la température à la surface du sol, la pente et l'orientation du sol, l'altitude et la brume urbaine. On a ainsi trouvé une différence marquée entre les valeurs relativement élevées du bilan de radiation valables sur la côte et les régions montagneuses côtières et les faibles valeurs que l'on rencontre dans les parties orientales de la Californie du sud.
    Notes: Summary A previously determined model [9], based on the theoretical knowledge of the physical modifications of solar energy by the atmosphere and its transformation at the surface, has been used to determine the monthly distribution of net radiation in southern California at a topoclimatic scale. Parameters utilized in the equations were cloud cover, cloud type, surface albedo, precipitable water vapor, surface temperature, slope angle, slope orientation, elevation, and urban sinog. A remarkable contrast was found between relatively high net radiation values for the littoral and coastal mountains and those of the lower values of the arid eastern parts of southern California.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 5
    Publication Date: 2020-02-06
    Description: Reanalysis data sets are widely used to understand atmospheric processes and past variability, and are often used to stand in as "observations" for comparisons with climate model output. Because of the central role of water vapor (WV) and ozone (O3) in climate change, it is important to understand how accurately and consistently these species are represented in existing global reanalyses. In this paper, we present the results of WV and O3 intercomparisons that have been performed as part of the SPARC (Stratosphere–troposphere Processes and their Role in Climate) Reanalysis Intercomparison Project (S-RIP). The comparisons cover a range of timescales and evaluate both inter-reanalysis and observation-reanalysis differences. We also provide a systematic documentation of the treatment of WV and O3 in current reanalyses to aid future research and guide the interpretation of differences amongst reanalysis fields. The assimilation of total column ozone (TCO) observations in newer reanalyses results in realistic representations of TCO in reanalyses except when data coverage is lacking, such as during polar night. The vertical distribution of ozone is also relatively well represented in the stratosphere in reanalyses, particularly given the relatively weak constraints on ozone vertical structure provided by most assimilated observations and the simplistic representations of ozone photochemical processes in most of the reanalysis forecast models. However, significant biases in the vertical distribution of ozone are found in the upper troposphere and lower stratosphere in all reanalyses. In contrast to O3, reanalysis estimates of stratospheric WV are not directly constrained by assimilated data. Observations of atmospheric humidity are typically used only in the troposphere, below a specified vertical level at or near the tropopause. The fidelity of reanalysis stratospheric WV products is therefore mainly dependent on the reanalyses' representation of the physical drivers that influence stratospheric WV, such as temperatures in the tropical tropopause layer, methane oxidation, and the stratospheric overturning circulation. The lack of assimilated observations and known deficiencies in the representation of stratospheric transport in reanalyses result in much poorer agreement amongst observational and reanalysis estimates of stratospheric WV. Hence, stratospheric WV products from the current generation of reanalyses should generally not be used in scientific studies.
    Type: Article , PeerReviewed
    Format: text
    Format: text
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...