Temporal variations and sources of elements in the South Pole atmosphere: 1. Nonenriched and moderately enriched elements

Date

1989-09-20

Author

Tuncel, Süleyman Gürdal
ZOLLER, WH

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

213
views

0
downloads

Abstract High‐volume particle samples were collected from 1979 to 1983 from the south pole atmosphere and analyzed by nuclear methods. The new results are combined with similar studies at the south pole. There is no trend of concentrations during 12 years of sampling, but concentrations of elements fluctuate through seasonal cycles. Concentrations of elements associated with crustal dust and sea salt showed opposite seasonal variations. Concentrations of most crustal elements are low during winters, but double during summers. Concentration of marine elements are low in the summers and high in winters. Enrichment factors of some crustal elements, such as Ba, La, Ce, Yb, and Hf are higher in the winter than summer, indicating the presence of a second crustal component with a different chemical composition in the south pole atmosphere. A similar difference in the crustal enrichment factor of Co is due to the influence of volcanic or anthropogenic sources. Sulfate, seasalt, meteoritic particles, volatiles, and two different types of crustal particles are found to be components of the south polar aerosols. The relative contribution of each component to total aerosol mass is as follows: crustal, 4.0% in summer, 2.5% in winter; marine elements 16.6% in summer, 78.6% in winter; sulfate, 77.5% in summer, 18.0% in winter; meteoritic particles, 0.1% in summer, 0.1% in winter; volatiles, 0.9% in summer, 0.5% in winter; crustal component II, 0.8% in summer, 0.7% in winter.

Subject Keywords

Meteorology, Atmospheric Sciences

URI

https://hdl.handle.net/11511/31876

Journal

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES

DOI

https://doi.org/10.1029/jd094id10p13025

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Modeling Temperature and Pricing Weather Derivatives Based on Temperature Tastan, Birhan; Hayfavi, Azize (2017-01-01) This study first proposes a temperature model to calculate the temperature indices upon which temperature-based derivatives are written. The model is designed as a mean-reverting process driven by a Levy process to represent jumps and other features of temperature. Temperature indices are mainly measured as deviations from a base temperature, and, hence, the proposed model includes jumps because they may constitute an important part of this deviation for some locations. The estimated value of a temperature ...
Temperature estimation studies on infrared images using radiometric approaches Atay, Yağmur; Esendemir, Akif; Department of Physics (2011) In this thesis work, temperature estimation algorithms based on physical and radiometric approaches are developed. Developed algorithms, firstly, tested on artificial images for different test cases. Following this, algorithms are tried out on real infrared images in order to verify that they are working properly. Finally, temperature estimations are done by including emissivity. Obtained results are compared to the temperature estimation results of a reference infrared camera. All the results and errors ob...
Temporal variability of atmospheric trace element concentrations over the eastern Mediterranean Sea GÜLLÜ, GÜLEN; Ölmez, İlhan; Tuncel, Süleyman Gürdal (2000-07-01) Concentrations of elements and ions measured in aerosol samples collected between March 1992 and December 1993 were investigated to understand temporal variability of elemental concentrations. Collected samples were analyzed by atomic absorption spectrometry, instrumental neutron activation analysis, ion chromatography and colorimetry for approximately 40 elements and major ionic species. Concentrations of elements were found to vary greatly on time scales ranging from days to seasons. Short-term variations...
Atmospheric trace element and major ion concentrations over the eastern Mediterranean Sea: Identification of anthropogenic source regions GÜLLÜ, GÜLEN; DOĞAN, GÜRAY; Tuncel, Süleyman Gürdal (2005-11-01) Concentrations of elements and ions measured in aerosol samples collected from March 1992 to the end of December 1993 were investigated to identify source regions affecting chemical composition of aerosols in the eastern Mediterranean atmosphere. Collected samples were analyzed for approximately 40 elements and ions using a combination of atomic absorption spectrometry, instrumental neutron activation analysis, ion chromatography and colorimetry. Statistical techniques, such as enrichment factors and a non-...
Antineutrino charm production and pentaquark search in the chorus experiment Köse, Umut; Güler, Ali Murat; Department of Physics (2006) During the years between 1994 and 1997, the emulsion target of the CHORUS experiment was exposed to the wide band neutrino beam of the CERN SPS of 27 GeV average energy collecting about 106 neutrino interactions. A measurement of induced charm production and search for anticharmed pentaquark ( 0 c ) have been performed by using the presence of a 6% component in the beam. By requiring a positive muon charge as determined by the CHORUS muon spectrometer, 46 -induced charm events were observed with ...

Citation Formats

S. G. Tuncel and W. ZOLLER, “Temporal variations and sources of elements in the South Pole atmosphere: 1. Nonenriched and moderately enriched elements,” JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, pp. 13025–13038, 1989, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31876.