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  • 1
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    Wiesbaden : Periodicals Archive Online (PAO)
    Geographische Zeitschrift. 16:12 (1910:Dez. 22) 695 
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  • 2
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    Wiesbaden : Periodicals Archive Online (PAO)
    Geographische Zeitschrift. 17:8 (1911:Sept. 19) 473 
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  • 3
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    Wiesbaden : Periodicals Archive Online (PAO)
    Geographische Zeitschrift. 19:4 (1913:Apr. 17) 228 
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Estuarine, Coastal and Shelf Science 35 (1992), S. 55-73 
    ISSN: 0272-7714
    Keywords: Thau lagoon ; contingency periodogram ; eel ; fishing effort ; fishing gear ; fishing strategy ; path analysis
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Geography , Geosciences
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Catena 2 (1975), S. 11-22 
    ISSN: 0341-8162
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Geography , Geosciences
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 30 (1994), S. 0 
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: : Certain physical and chemical properties of soil vary with soil water content. The relationship between these properties and water content is complex and involves both the pore structure and constituents of the soil solution. One of the most economical techniques to quantify soil water content involves the measurement of electrical resistance of a dielectric medium that is in equilibrium with the soil water content. The objective of this research was to test the reliability and accuracy of fiberglass soil-moisture electrical resistance sensors (ERS) as compared to gravimetric sampling and Time Domain Reflectometry (TDR). The response of the ERS was compared to gravimetric measurements at eight locations on the USDA-ABS Walnut Gulch Experimental Watershed. The comparisons with TDR sensors were made at three additional locations on the same watershed. The high soil rock content (≥45 percent) at seven locations resulted in consistent overestimation of soil water content by the ERS method. Where rock content was less than 10 percent, estimation of soil water was within 5 percent of the gravimetric soil water content. New methodology to calibrate the ERS sensors for rocky soils will need to be developed before soil water content values can be determined with these sensors.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Meteorology and atmospheric physics 35 (1985), S. 323-339 
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Zur Abschätzung einer möglichen Klimaänderung als Folge einer Verdopplung der CO2-Konzentration in der Atmosphäre dienen die Ergebnisse von Studien mit drei-dimensionalen Modellen der atmosphärischen Zirkulation. Diese Ergebnisse können nicht als Klimavorhersagen betrachtet werden, da die gegenwärtigen Modelle noch erhebliche Mängel aufweisen. Sie bilden jedoch die Grundlage zur Entwicklung von Klimaszenarien. Klimamodelle sind gegenwärtig die einzigen Hilfsmittel, um die Reaktion des Klimasystems auf eine externe Störung in physikalisch konsistenter Weise und in hoher zeitlicher und räumlicher Auflösung zu simulieren. Für den Mittelmeerraum werden die Ergebnisse dreier verschiedener Klimamodelle (British Meteorological Office (BMO); Goddard Institute for Space Studies (GISS); National Center for Atmospheric Research (NCAR)) anhand der regionalen und saisonalen Verteilungen von Temperatur, Niederschlag und Bodenfeuchte vorgestellt. Die durch einen CO2-Anstieg verursachte Änderung der Temperaturverteilung ist bei den drei Modellergebnissen ähnlich. Die räumlichen Mittelwerte liegen zwischen 2,5 und 4,0 K. Der Vergleich der Verteilung hydrologischer Größen ergibt dagegen kein einheitliches Bild. Die den simulierten Klimaänderungen zugrunde liegenden physikalischen Mechanismen werden benannt und die statistische Signifikanz der Klimaänderung wird getestet. Diese Arbeit dient zur Entwicklung einer Methodologie für den Einsatz von Klimamodellszenarien bei der Impaktanalyse.
    Notes: Summary For the estimation of a potential climatic change induced by a doubling of atmospheric CO2 we use the results of three-dimensional general circulation models (GCM). Although the results from present climate modeling cannot be considered as predictions of future climatic conditions due to the inherent models' deficiencies, they can still serve a useful purpose in climate change scenarios. The reason for this is that climate models are the only tools available to study the response of the climate system to a perturbation in a physically consistent manner and that such types of models can provide a consistent data set of high temporal and spatial resolution. For the Mediterranean area, the results obtained from three different GCMs, namely, the British Meteorological Office model (BMO), the Goddard Institute for Space Studies model (GISS), and the National Center for Atmospheric Research model (NCAR) are shown. The regional and seasonal distributions of temperature, precipitation, and soil moisture are used to study the potential changes. The results indicate that the CO2-induced changes for temperature generated by the three models are of similar magnitude. The values of the area mean change range between 2.5 and 4.0 K. The precipitation response results in a diverse pattern. The physical mechanism likely to be responsible for the simulated climatic changes are identified and their statistical significance is tested. This type of work will help us develop the methodology and assist us in gaining insight into the use of climate model scenarios for impact analysis.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    International journal of biometeorology 15 (1971), S. 41-54 
    ISSN: 1432-1254
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Die Untersuchung befasst sich mit den mikroklimatischen Unterschieden von gepflasterten und Grasflächen-Zonen der Stadt und Vorstadt von Cincinnatti,Ohio, anhand der Daten von Feucht- und Trockentemperatur, Strahlungswärme und Luftbewegung. Daraus wurden berechnet: die Effektive Temperatur und die korrigierte Effektive Temperatur, die Nass-Globe-Temperatur, der Discomfort-Index und der Relative-Strain-Index. Die Werte wurden untersucht in Hinsicht auf die Gesundheit und Behaglichkeit der Stadtbewohner im Vergleich mit den Vorstadtbewohnern. Am Nachmittag waren Grasflächen angenehmer als gepflasterte Flächen, am Abend war es umgekehrt. Dieser Stadt-Vorort Unterschied zeigt auf, dass der Wärmeüberschuss in der Stadt die direkte Ursache der Hitze-Todesfälle während extremer Hitzeperioden sein kann. Die wohlüberlegte Verteilung von Grünflächen und die Verwendung von Baumaterialien mit geringer Wärmeleitung und Wärmespeicherung und höheren Albedos werden zur Abschwächung des städtischen Wärmeüberschusses vorgeschlagen.
    Abstract: Resume On étudie ici les différences micrométéorologiques entre les zones pavées et engazonnées de Cincinnati, Ohio, USA, et cela aussi bien dans la villemême que dans les faubourgs. Pour cela, on a mesuré la température des thermomètres sec et mouillé, la chaleur radiante et la vitesse du vent. On en tire la température effective, la température effective corrigée, la température du thermomètre mouillé, l'indice dinconfort et l'indice de contrainte relative. On interprête ces chiffres au vu de l'état de santé et de confort des habitants du centre urbain lui-même par rapport à ceux des banlieusards. L'après-midi, les zones engazonnées sont plus agréables que celles qui sont pavées. Le soir, les faubourgs présentent un confort plus important que la ville. Les différences constatées entre la ville et sa banlieue montrent que les excès thermiques de la première sont directement responsables de la mortalité par coups de chaleur pendant les périodes de chaud prononcé. Pour améliorer les conditions de vie, c'est-à-dire diminuer les excès thermiques, on propose une répartition équilibrée de zones vertes et l'usage de matériaux de construction ayant de faibles conductivité et capacité thermiques ainsi qu'un albédo élevé.
    Notes: Abstract The study gives the microenvironmental contrasts between paved and grass surfaces, in both urban and suburban areas of Cincinnati, Ohio. Wetand dry-bulb temperatures, radiant heat, and air velocity measurements are presented. Thermal indices such as effective temperature, corrected effective temperature, wet-bulb globe temperature, discomfort index, and relative strain index are calculated from these measurements. The data are interpreted with respect to the health and comfort of urban inhabitants relative to adjacent suburban inhabitants. During the afternoon, the grass sites were more comfortable than paved sites. During the evening, the suburban area was significantly more comfortable than the urban area. The urban-suburban differences indicate that the urban thermal excess may be a direct factor in heat deaths during periods of extreme heat. Careful spacing of green areas, and the use of building materials with lower heat conductivity and heat storage properties and higher albedoes are suggested to ameliorate the urban temperature excess.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    GeoJournal 7 (1983), S. 381-382 
    ISSN: 1572-9893
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    GeoJournal 10 (1985), S. 339-352 
    ISSN: 1572-9893
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography
    Notes: Abstract Many of the world's most troublesome problems are closely interrelated. A case in point is the acid rain/carbon dioxide threat. Acid rain is the commonly used synonym for the major ingredients in the ongoing regional forest dieback, and carbon dioxide is a major influencing factor in the man-induced global geophysical experiment which is feared to lead to unacceptable climatic changes. Both problems have a major common cause, namely the squanderous use of fossil fuels. For this the most effective short-term preventive control measure is the reduction of fossil fuel combustion through more efficient use which drastically reduces the pollution output by minimizing the need of having to burn fossil fuels in the first place. However, the large differences in the quantity of the emissions involved (some 20 000 million tons of CO2/yr. and about 130 and 50 million tons of SO2 and NOx, respectively) ingredients of acid rain, can be stripped from the gas stream by technical means which are affordable, the sheer quantity of CO2 involved renders its sequestering and disposal technically, logistically and economically unfeasible. Through short-term measures the necessary time is gained for a sensible introduction of pollution-free sustainable resources. The long market penetration times (typically 50–100 years) force us to act now, ifwe do not wish to have upon us in the near future a major CO2/climate problem that is of similar severity as the acid rain/forest dieback problem of today. To my knowledge this is the first attempt to analyse the acid rain/CO2 problems in their genetic and functional context and to present ways which lead to feasible solutions.
    Type of Medium: Electronic Resource
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