Title
Verification of the geographical origin of modeled air-mass trajectories by means of the isotope composition of rainwater during the SALLJEX experiment
Date Issued
24 February 2009
Access level
metadata only access
Resource Type
journal article
Author(s)
Publisher(s)
Springer Nature
Abstract
The SALLJEX experiment was held during the summer 2002-2003. It consisted of three-dimensional observation of the atmosphere to study the structure of the low level jet along the eastern slopes of the Andes. Daily precipitation water samples were collected at two stations (Resistencia and Salta) in northern Argentina and isotope content was analyzed. The isotope data were used in conjunction with air parcel trajectories obtained from a 3-D kinematic model (3D-MTC) developed by the University of Sao Paulo, Brazil. Values of deuterium excess were related with air masses of continental origin, whilst low values were associated with air masses with longer oceanic trajectories. Furthermore, although data are scarce, results show that oxygen-18 and deuterium excess in rainwater are related with the occurrence of the low level jet. © Springer Science+Business Media B.V. 2009.
Start page
409
End page
425
Volume
9
Issue
4
Language
English
OCDE Knowledge area
Ingeniería ambiental y geológica
Subjects
Scopus EID
2-s2.0-67649604286
Source
Environmental Fluid Mechanics
ISSN of the container
15677419
Sponsor(s)
M. González · B. Cerne Centro de Investigaciones del Mar y la Atmósfera, UBA-CONICET, Buenos Aires, Argentina
An intensive observation period was held during the SALLJEX from January 11 to February 15 2003, where daily rain samples were taken at two stations located in the region under investigation -Resistencia (27◦27′S, 59◦03′W, 52 masl) and Salta (24◦51′S, 65◦29′W, 1,220 masl) (Fig. 1). These stations are part of the National Collector Network (RNC) established by the Instituto de Geocronología y Geología Isotópica (INGEIS) [9,10,12] in the framework of the International Atomic Energy Agency/WMO project launched in 1961. This international project for the measurement of isotope content of precipitation water throughout the world is called GNIP (Global Network for Isotopes in Precipitation).
Sources of information:
Directorio de Producción Científica
Scopus