Isotope Hydrology - CD ROM

Contents include: Six volumes of IAEA/UNESCO textbook series in isotope hydrology; Graphical solutions to selected equations in the textbooks; Geochemical modeling softwares: NETPATH, SOLMINEQ and transport models.

Procedures and Other Related Resources
•	Learning, Teaching and Applying Isotope Techniques in Hydrology, Full Installation
•	Environmental Isotopes in the Hydrological Cycle : Principles and Applications, Full Text in English, French, and Spanish
•	NETPATH–WIN Software, Download Zip File
•	NETPATH–WIN: An Interactive User Version of the Mass-Balance Model, NETPATH
•	NETPATH–WIN: Supporting Information

Introduction to Water Sampling and Analysis for Isotope Hydrology

Proper water sampling is central to virtually all activities in isotope hydrology. This video is meant to guide practitioners and researchers in hydrological work in their activities, to efficiently gather information and thus enhance knowledge of particular water supplies. Watch the full tutorial.

Procedures and Other Related Resources
•	Sampling Procedures for Isotope Hydrology, Full text
•	IAEA-Field Information Template - English, Full text
•	IAEA-Field Information Template - French, Full text
•	IAEA-Field Information Template - Spanish, Full text
•	IAEA-Field Information Template - Russian, Full text

Overview of Laboratory Isotope Analysis Methods for Water Resources Studies

Proper preparation and analysis of isotope samples are essential for the interpretation and development of a sound assessment of water resources and potential water supplies. This DVD provides an overview of laboratory methods used for preparation and analysis of samples for deuterium and oxygen-18, carbon-13 and carbon-14, noble gases, tritium and CFCs. Many analytical details are covered allowing a view of individual analytical methods to gain an in-depth understanding about how to conduct isotope analyses in the laboratory. Watch the full tutorial.

Liquid-Water Stable Isotope Analyser

Laser based instruments have the potential to bring about a paradigm shift in isotope applications. This contains a document describing extensive laboratory testing performed by the IAEA, a 45 minute video demonstrating how to assemble an analyser, as well as other resources.Watch the full tutorial.

Procedures and Other Related Resources
•	Summary of Presentations and Discussions on the Routine Operation of Laser-Based Isotope Analyzers, 2011,  Full text
•	Tips and Tricks for Laser Absorption Based Analysis of Stable Isotopes in Liquid Water Samples, 2009, Full text
•	IAEA Standard Operating Procedure, Full text
•	Training Series No.35 - Laser Spectroscopic Analysis of Liquid Water Samples for Stable Hydrogen and Oxygen Isotopes, Full text
•	Calculation Template I ver. 4, (Old), Full text
•	Calculation Template II ver.3, (New), Full text
•	Calculation Template for Internal Standards ver.4, (New), Full text

FLOWPC (Ver. 3.2)

Use of Lumped Parameter Models for the Interpretation of Environmental Tracer Data in Groundwater Studies.

This software package and its complementary documents were developed as part of the Co-ordinated Research Project on 'Mathematical Models for Quantitative Evaluation of Isotope Data in Hydrology', which was implemented from 1990 to 1994. This application was developed by Prof. P. Maloszewski, GSF –Institute of Hydrology, Germany. Lumped parameter models are particularly useful for interpreting environmental isotope and tracer data in groundwater systems, especially when the isotope data is obtained at separate sampling sites, when it is neither possible, nor justified, to use distributed parameter models, as the latter require more detailed knowledge of the investigated system.

The application was originally developed in DOS but it runs under Windows. The application and the manual are available from the zip file. The latest version (3.2) of FLOWPC and selected examples, as well as input functions for stable isotopes and tritium are included in the zip file. The manual and the examples presented are based on reports describing the use of these models (Maloszewski and Zuber, 1996 and Zuber and Maloszewski, 2000).

Procedures and Other Related Resources
•	Manual on Mathematical Models in Isotope Hydrogeology, IAEA-TECDOC 910, IAEA, Vienna, 9-58, 1996, Full text
•	Environmental Isotopes in the Hydrological Cycle, Vol. VI, Modelling. IAEA/UNESCO, Paris, Techn. Doc., 5-36, 2000, Full text
•	FLOWPC ver 3.2 Software, Download Zip File

ISOGRIDS

Isotopic Gridded Rainfall Data Software

This application is an open source based utility used to generate gridded maps of stable isotopes (δ18O, δ2H) in precipitation. It was developed by Prof. A. Argiriou and V. Salamalikis from the Laboratory of Atmospheric Physics, Patras University, Greece within the framework of the Coordinated Research Project on 'Geostatitical Methods of Spatial Isotope Variability to Map the Sources of Water for Hydrology Studies'. The package uses a combined multiple regression/interpolation approach to generate gridded stable precipitation isotope maps.

ISOGRIDS is based on the R language and environment for statistical computing and graphics www.r-project.org, which can be obtained freely under GNU General Public licence (GPL2) for Windows, Unix and Macintosh operating systems. Several additional libraries are necessary to run the application; these are listed in the software manual. The download package is a zipped file including scripts for manipulating deuterium and oxygen-18 values, a user´s manual, and a sample dataset. For working with and editing the script, a text editor is required, we recommend Tinn-R http://www.sciviews.org/Tinn-R/ and http://sourceforge.net/projects/tinn-r/, also distributed under the GPL2.

To run the application from the R console, just copy the scripts to the working directory (or change it using the setwd "YourDirectory" command), adjust the script according to pages 9 (Excel version) and 12 (custom models) in the manual and load/run the scripts individually (using source "manual_oxygen_18.r" or source "manual_deuterium.r"). After that, prompts will appear for any additional input required.

ISOGRIDS allows the use of different gridded climatic datasets and provides the possibility to use pre-defined as well as custom multiple regression functions and kriging or thin plate splines algorithms for the interpolation of residuals. Please refer to the tutorial for further information on these methods.

Copyright for ISOGRIDS is with IAEA and the Laboratory of Atmospheric Physics, University of Patras. Users are kindly requested to cite this software as "ISOGRIDS – ISOtopic GRIdded Rainfall Data Software. Available at http://www.iaea.org/water (retrieved YYYY-MM-DD)". Please be aware that – as with all free software – only limited support can be provided, although it is planned to establish an FAQ site.

Procedures and Other Related Resources
•	ISOGRIDS, Download Zip File