Wyniki wyszukiwania dla: GLACIER MASS BALANCE

• Nitrogen mass balance and mathematical model of a Structured- Bed Reactor (SBRRIA)

  Publikacja

  • K. Wiśniewski
  • C. Santos
  • M. Zaiat
  • M. H. R. Z. Damianovic
  • J. Mąkinia

  - Rok 2015

  An up-flow structured-bed reactor subjected to recirculation and intermittent aeration (SBRRIA) was operated under varying influent conditions. The influent COD/N ratio was adjusted by maintaining a stable organic loading rate (average of 1.07 kgCOD m-3 d-1) and changing the nitrogen loading rate from 0.1 to 0.4 kg N m-3. Therefore, three different COD/N ratios were tested: 9.7±1 (Scenario 1); 7.6±1 (Scenario 2) and 2.9±1 (Scenario...

• Balance of pesticides mass in gas, liquid and solid phase after their chemical degradation.

  Publikacja

  • H. Tyszkiewicz
  • M. Biziuk
  • A. Zalewska
  • J. Hupka

  - Rok 2004

  Opisano metodę usuwania pestycydów z wody przy zastosowaniu fotodegradacji (UV) i katalizatora (TiO2). Efektywność procesu usuwania pestycydów była kontrolowana przy zastosowaniu chromatografu gazowego z detektorem wychwytu elektronów. Oznaczano zawartość pestycydów w wodzie, a także zaadsorbowanych na powierzchni stałej, oraz w fazie gazowej. Największa zawartość pestycydów znajdowała się na fazie stałej, następnie w cieczy i...

• Towards a global historical emission inventory for selected PCB congeners - a mass balance approach. 3. An update

  Publikacja

  • K. Breivik
  • A. Sweetman
  • J. Pacyna
  • K. C. Jones

  - SCIENCE OF THE TOTAL ENVIRONMENT - Rok 2007

  Poprzednie prace autorów zawierały bardzo istotne informacje do oceny stężeń związków polychlorobifenylowych (PCB) w rejonach oddalonych od dużych źródeł emisji tych związków jak i w środowisku globalnym. Okazało się, że niezbędna jest modyfikacja emisji PCB po roku 2000. Przedstawiono nowe dane o produkcji PCB w Polsce oraz nowe dane nt. składu chemicznego różnych produktów technicznych opartych na PCB. Ulepszono też metody oceny...

  Pełny tekst do pobrania w portalu

• Organic carbon fluxes of a glacier surface: a case study of Foxfonna, a small Arctic glacier

  Publikacja

  • K. Kozioł
  • H. Moggridge
  • J. Cook
  • A. Hodson

  - EARTH SURFACE PROCESSES AND LANDFORMS - Rok 2019

  Arctic glaciers are rapidly responding to global warming by releasing organic carbon (OC) to downstream ecosystems. The glacier surface is arguably the most biologically active and biodiverse glacial habitat and therefore the site of important OC transformation and storage, although rates and magnitudes are poorly constrained. In this paper, we present measurements of OC fluxes associated with atmospheric deposition, ice melt,...

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• Do morphometric parameters and geological conditions determine chemistry of glacier surface ice? Spatial distribution of contaminants present in the surface ice of Spitsbergen glaciers (European Arctic)

  Publikacja

  • S. Lehmann-Konera
  • G. Gajek
  • S. Chmiel
  • Ż. Polkowska

  - ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH - Rok 2016

  Abstract The chemism of the glaciers is strongly determined by long-distance transport of chemical substances, and their wet and dry deposition on the glacier surface. This paper concerns spatial distribution of metals, ions, and dissolved organic carbon, as well as the differentiation of physicochemical parameters (pH, electrical conductivity) determined in ice surface samples collected from four Arctic glaciers during the summer...

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• Glaciers as an Important Element of the World Glacier Monitoring Implemented in Svalbard

  Publikacja

  • S. Lehmann-Konera
  • M. Ruman
  • K. Kozioł
  • G. Gajek
  • Ż. Polkowska

  - Rok 2017

  Glaciers are not only contributors to the sea level rise but also important players in the circulation of pollutants. Over a billion people apply glacial waters for domestic purposes; hence, both the quality and quantity of this water should be monitored. In this chapter, we concentrate on the archipelago Svalbard in the Arctic, a typical target area for xenobiotics from long range atmospheric transport (LRAT), holding an important share...

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• Wprowadzenie do analiz egzergetycznych, PG_00059783

  Kursy Online

  • P. Ziółkowski

  The aim of the course is to present the basic issues to carry out the balance of exergy and entropy in addition to the balance of mass and energy. To show the definition of the maximum work that a certain matter can do in a thermodynamic process when transitioning to equilibrium with its surroundings.  To refer to chemical exergy and show the application of the exergy balance to define losses in a thermodynamic cycle.

• Bartłomiej Luks dr

  Osoby

  I'm a snow researcher, working in the Arctic for almost 20 years. I've started as a field assistant on a geological expedition to Bellsund (Spitsbergen), then did my masters on soil pollution in the vicinity of Polish Polar Station Hornsund and PhD on dynamics of snowpack in the SW Spitsbergen. Since 2013 I'm an Assistant Professor at the Department of Polar and Marine Research IG PAS in Warsaw. My main research interests are the...

• Multidecadal (1960-2011) shoreline changes in Isbjornhamna (Hornsund, Svalbard)

  Publikacja

  • A. Styszyńska
  • P. Zagórski
  • J. Rodzik
  • M. Strzelecki
  • M. Moskalik
  • M. Lim
  • M. Błaszczyk
  • A. Promińska
  • G. Kruszewski
  • A. Malczewski

  - Polish Polar Research - Rok 2015

  Asection of a gravel−dominated coast in Isbjørnhamna (Hornsund, Svalbard) was analysed to calculate the rate of shoreline changes and explain processes controlling coastal zone development over last 50 years. Between 1960 and 2011, coastal landscape of Isbjørn− hamna experienced a significant shift from dominated by influence of tide−water glacier and protected by prolonged sea−ice conditions towards storm−affected and rapidly...

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• Fluid Mechanics, L/L/E, DaPE, sem. 04, summer 21/22 (PG_00050282)

  Kursy Online

  • K. Tesch
  • M. Banaszek

  LECTURES Introduction and basic definitions. Properties of fluids. Models of fluids. Fluids in equilibrium. Determination of hydrostatic forces. Archimedes" law. Methods of fluid flow description. General motion of fluid. Deformation of fluid element. Vortex motion of fluid. Principles of conservation of mass, momentum and energy. Balance of entropy. Navier-Stokes equation. Bernoulli equation. Similarity of flow phenomena. Potential...