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Land-Climate Interactions: Constraints for Droughts and Heatwaves in a Changing Climate

Land-Climate Interactions: Constraints for Droughts and Heatwaves in a Changing Climate

Objective

"Land-climate interactions mediated through soil moisture and vegetation play a critical role in the climate system, in particular for the occurrence of extreme events such as droughts and heatwaves. They are, however, poorly constrained in current Earth System Models (ESMs), leading to large uncertainties in climate projections. These uncertainties affect the quality and accuracy of projections of temperature, water availability, and carbon concentrations, as well as that of projected impacts on agriculture, ecosystems, and health.

In the past years, in-situ and remote sensing-based datasets of soil moisture, evapotranspiration, and energy and carbon fluxes have become increasingly available, providing untapped potential for reducing associated uncertainties in current climate models. The DROUGHT-HEAT project aims at innovatively exploiting these new information sources in order to 1) derive observations-based diagnostics to quantify and isolate the role of land-climate interactions in past extreme events (""Diagnostic Atlas""), 2) evaluate and improve current ESMs and constrain climate-change projections using the derived diagnostics, and 3) apply the newly gained knowledge to frontier developments in the attribution of climate extremes to land processes and their mitigation through ""land geoengineering"".

The DROUGHT-HEAT project integrates the newest land observational datasets with the latest stream of ESMs. Novel methodologies will be applied to extract functional relationships from the data, and identify key gaps in the ESMs' representation of underlying processes. These will build on physically-based relationships, machine learning tools, and model calibration. In addition, they will encompass the mapping and merging of derived diagnostics in space and time to reduce ""blank spaces"" in the datasets. The project is unprecedented in its breadth and scope and will allow a major breakthrough in our understanding of the processes leading to heatwaves and droughts."
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Principal Investigator

Sonia Isabelle Seneviratne (Prof.)

Host institution

EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH

Address

Raemistrasse 101
8092 Zuerich

Switzerland

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 1 952 285

Principal Investigator

Sonia Isabelle Seneviratne (Prof.)

Administrative Contact

Sonia Seneviratne (Prof.)

Beneficiaries (1)

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EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH

Switzerland

EU Contribution

€ 1 952 285

Project information

Grant agreement ID: 617518

Status

Ongoing project

  • Start date

    1 September 2014

  • End date

    31 August 2019

Funded under:

FP7-IDEAS-ERC

  • Overall budget:

    € 1 952 285

  • EU contribution

    € 1 952 285

Hosted by:

EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH

Switzerland