Isotope variability of rain for assessing climate change impacts

Closed for proposals

Project Type

Coordinated Research Project

Project Code

F31006

CRP

2204

Approved Date

4 December 2018

Status

3 - Active - Ongoing

Start Date

26 July 2019

Expected End Date

31 December 2023

Participating Countries

Algeria
Argentina
Australia
Brazil
Canada
China
Costa Rica
Cuba
Ghana
Namibia
Poland
Romania
Slovenia
Syrian Arab Republic
United States of America

Description

During the CRP the following outputs are expected to be produced:
• Report on the testing and assessment of isotope data in precipitation collected at various temporal resolutions to better delineate the factors controlling isotope variability in atmospheric waters.
• Compilation of new isotope data sets measured at small temporal resolution in climate sensitive areas as a key contribution to the GNIP database.
• Technical reports summarizing major findings and best-practice guidelines on integrating environmental isotopes in precipitation with climate models and implications for assessing climate change impact.

Objectives

The overall objective of the CRP is to improve the capability and expertise among Member States in the use of isotope patterns observed in precipitation to better assess the impacts of climate change on water resources and water related infrastructures.

Specific objectives

Improve the understanding of climate change impacts by using environmental isotopes to evaluate possible transformations of rainfall patterns on the local, regional and global scale and to investigate their likely causes.

To develop and strengthen the capabilities for integrating datasets from multiple sources, at different space and time scales and at varying quality levels, in order to leverage an improved understanding and interpretation of environmental isotopes in rainfall.

To develop best-practice guidelines on combining environmental isotopes and other indicators into a harmonized data product for assessing rainfall related climate change impacts in the framework of precipitation networks on the national and global level.

To strengthen the use of isotopes as an independent means of verification and to thereby more efficiently complement conventional hydro-meteorological observations in the validation of dynamic climate models and synoptic features of the atmospheric circulation.

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