Developing a novel framework for understanding and scaling near-surface turbulence in complex terrain

Project Information

Unicorn

Grant agreement ID: 101001691

DOI

10.3030/101001691

EC signature date 20 January 2021

Start date 1 June 2021

End date 31 May 2027

Funded under

• EXCELLENT SCIENCE - European Research Council (ERC)

Total cost

€ 1 960 392,00

EU contribution

€ 1 960 392,00

Coordinated by

UNIVERSITAET INNSBRUCK
Austria

CORDIS provides links to public deliverables and publications of HORIZON projects.

Links to deliverables and publications from FP7 projects, as well as links to some specific result types such as dataset and software, are dynamically retrieved from OpenAIRE .

Deliverables

Open Research Data Pilot (1)

Data Management Plan

Open Research Data inlcudes a DMP according to FAIR principles with regulary updates

Publications

Thesis and dissertations (8)

Correcting wind speed and turbulence measurements made by the IRGASON instrument

Author(s): Sebastian Brandl
Published in: Bachelor Thesis in Atmospheric Science, Bachelor in Atmospheric Sciences, 2025
Publisher: University of Innsbruck

Subcritical Behaviour of Mesoscale Katabatic Flows during the METRAX II Campaign

Author(s): Viola Seifried
Published in: Bachelor Thesis in Atmospheric Science, Bachelor in Atmospheric Science, 2024, Page(s) 26
Publisher: Department of Atmospheric and Cryospheric Sciences, University of Innsbruck

Turbulence anisotropy in the atmospheric surface layer

Author(s): Samuele Mosso
Published in: PhD Thesis in Atmospheric Science, 2025
Publisher: University of Innsbruck

Turbulent Structure of Subcritical Katabatic Flows on a Gentle Slope

Author(s): Jakob Simon Werkgarner
Published in: Bachelor Thesis in Atmospheric Science, Bachelor in Atmospheric Science, 2024, Page(s) 33
Publisher: Department of Atmospheric and Cryospheric Science, University of Innsbruck

Turbulent sensible heat flux in complex terrain: a comparison between parametrizations on Hintereisferner

Author(s): Silvia Barbieri
Published in: Master Thesis in Atmospheric Science, Masters in Environmental Meteorology, 2023, Page(s) 87
Publisher: Department of Atmospheric and Cryospheric Sciences, University of Innsbruck

Causes and Effects of Directional Wind Shear in Complex Terrain

Author(s): Luis Eichholzer
Published in: Bachelor Thesis in Atmospheric Science, Bachelor in Atmospheric Science, 2022, Page(s) 34
Publisher: Department of Atmospheric and Cryospheric Sciences, University of Innsbruck

Three-dimensional heat, momentum and TKE budget equations in a deep katabatic wind layer over a mid-latitude glacier tested with observational and model data

Author(s): Ilga Staudinger
Published in: Master Thesis in Atmospheric Science, Masters in Atmospheric Sciences, 2025
Publisher: University of Innsbruck

Turbulence in complex terrain under various wind regimes: A comparison of measured data with the idealized local similarity theory

Author(s): Jonathan Rindle
Published in: Bachelor Thesis in Atmosphere Sciences, Bachelor in Atmospheric Sciences, 2026
Publisher: University of Innsbruck

Peer reviewed articles (16)

Open questions in atmospheric turbulence: A synthesis from the centenary workshop “100 years of turbulence: Innsbruck 1922 -2022”

Author(s): Ivana Stiperski, Mathias W. Rotach, Cedrick Ansorge, Alexander Baklanov, Danijel Belušić, Elie Bou-Zeid, Christophe Brun, Andreas Christen, Nelson Luís Dias, Andreas Dörnbrack, Thomas Foken, Andrey Grachev, Albert A.M. Holtslag, Mark Kelly, Petra Klein, Branko Kosović, Charles Meneveau, Luca Mortarini, Edward G. Patton, Gert-Jan Steeneveld, Christoph Thomas, Silvia Trini Castelli, Dino Zardi
Published in: Journal of the European Meteorological Society, Issue 3, 2025, Page(s) 100022, ISSN 2950-6301
Publisher: Elsevier BV
DOI: 10.1016/j.jemets.2025.100022

Spectral scaling of unstably stratified atmospheric flows: Turbulence anisotropy and the low‐frequency spread

Author(s): Claudine Charrondière, Ivana Stiperski
Published in: Quarterly Journal of the Royal Meteorological Society, Issue 150, 2024, Page(s) 4196-4216, ISSN 0035-9009
Publisher: Royal Meteorological Society
DOI: 10.1002/qj.4811

Evaluating Anisotropy-based Monin-Obukhov Similarity Theory over Canopies and Complex Terrain

Author(s): Tyler Waterman, Ivana Stiperski, Nathaniel Chaney, Marc Calaf
Published in: Quarterly Journal of the Royal Meteorological Society, 2025, ISSN 0035-9009
Publisher: Royal Meteorological Society
DOI: 10.48550/arxiv.2502.13970

A Physically Based Modification of the KPP Turbulence Closure Scheme for the Upper Ocean that Accounts for the Effects of Langmuir Turbulence

Author(s): Jasmine George, Miguel A. C. Teixeira, Ivana Stiperski
Published in: Journal of Physical Oceanography, Issue 55, 2025, Page(s) 1067-1081, ISSN 0022-3670
Publisher: American Meteorological Society
DOI: 10.1175/jpo-d-24-0175.1

Interpreting Turbulence Anisotropy in a Streamline Coordinate System

Author(s): Federica Gucci, Samuele Mosso, Nikki Vercauteren, Ivana Stiperski
Published in: Journal of Geophysical Research: Atmospheres, Issue 130, 2025, Page(s) e2024JD042212, ISSN 2169-897X
Publisher: American Geophysical Union (AGU)
DOI: 10.1029/2024jd042212

Glacier-Atmosphere Interactions and Feedbacks in High-Mountain Regions - A Review

Author(s): Tobias Sauter, Benjamin William Brock, Emily Collier, Alexander Georgi, Brigitta Goger, Alexander Raphael Groos, Kristine Flacké Haualand, Michael Haugeneder, Arindan Mandal, Rebecca Mott, Lindsey Nicholson, Rainer Prinz, Dylan Reynolds, Manuel Saigger, Thomas Edward Shaw, Jean Emmanuel Sicart, Ivana Stiperski, Annelies Voordendag
Published in: Review of Geophysics, Issue 64, 2025, Page(s) e2024RG000869, ISSN 8755-1209
Publisher: American Geophysical Union
DOI: 10.22541/essoar.174164160.03475851/v1

The vertical temperature structure and scaling relations for heat of the near surface stable boundary layer

Author(s): Karl Lapo, Lena Pfister, Samuele Mosso, Manuela Lehner, Ivana Stiperski
Published in: Boundary-Layer Meteorology, 2025, ISSN 0006-8314
Publisher: Kluwer Academic Publishers
DOI: 10.21203/rs.3.rs-5599974/v1

The second HinterEisFerner EXperiment (HEFEX II): Initial insights into boundary layer structure and surface-atmosphere exchange processes from intensive observations at a valley glacier

Author(s): Lindsey Nicholson, Ivana Stiperski, Giordano Nitti, Rainer Prinz, Alexander Georgi, Alexander R. Groos, Thomas E. Shaw, Tobias Sauter, Michael Haugeneder, Rebecca Mott, Jean-Emmanuel Sicart, Ben W. Brock, Roland Albers, Balthazar Allegri, Hélène Barral, Romain Biron, Claudine Charrondiere, Catherine Coulaud, Alexander Fischer, Dylan Reynolds, Niklas Richter, Marie Schroeder, Phillip Vettori, Ann
Published in: Bulletin of the American Meteorological Society, 2025, ISSN 0003-0007
Publisher: American Meteorological Society
DOI: 10.1175/bams-d-24-0010.1

Temperature Structure and Scaling Relations for Heat Transfer in the Stable Boundary Layer

Author(s): Karl Lapo, Lena Pfister, Samuele Mosso, Manuela Lehner, Ivana Stiperski
Published in: Boundary-Layer Meteorology, Issue 191, 2025, ISSN 0006-8314
Publisher: Kluwer Academic Publishers
DOI: 10.1007/s10546-025-00920-1

Investigating the influence of changing ice surfaces on gravity wave formation impacting glacier boundary layer flow with large-eddy simulations

Author(s): Brigitta Goger, Ivana Stiperski, Matthis Ouy, Lindsey Nicholson
Published in: Weather and Climate Dynamics, Issue 6, 2025, Page(s) 345-367, ISSN 2698-4016
Publisher: Copernicus GmbH
DOI: 10.5194/wcd-6-345-2025

Generalizing Monin-Obukhov Similarity Theory (1954) for Complex Atmospheric Turbulence

Author(s): Ivana Stiperski, Marc Calaf
Published in: Physical Review Letters, Issue 130, 2023, Page(s) 124001, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.130.124001

Turbulence in the Strongly Heterogeneous Near-Surface Boundary Layer over Patchy Snow

Author(s): Michael Haugeneder, Michael Lehning, Ivana Stiperski, Dylan Reynolds, Rebecca Mott
Published in: Boundary Layer Meteorology, Issue 170, 2024, ISSN 0006-8314
Publisher: Kluwer Academic Publishers
DOI: 10.1007/s10546-023-00856-4

A Novel Similarity Approach for Describing the Bulk Shear in the Atmospheric Surface Layer

Author(s): Gabin H Urbancic, Ivana Stiperski, Albert A M Holtslag, Samuele Mosso, Timo Vihma
Published in: Boundary-Layer Meteorology, 2024, ISSN 0006-8314
Publisher: Kluwer Academic Publishers
DOI: 10.1007/s10546-023-00854-6

Flux-gradient relations and their dependence on turbulence anisotropy

Author(s): Samuele Mosso, Marc Calaf, Ivana Stiperski
Published in: Quarterly Journal of the Royal Meteorological Society, 2024, ISSN 0035-9009
Publisher: Royal Meteorological Society
DOI: 10.1002/qj.4762

Characterization of the near-surface air temperature dynamics over glaciers using thermal infrared measurements

Author(s): Rebecca Mott, Michael Haugeneder, Ivana Stiperski, Patricia Asemann, Dylan Reynolds, Lindsey Nicholson
Published in: Frontiers in Earth Science, Issue 13, 2025, ISSN 2296-6463
Publisher: Frontiers Media SA
DOI: 10.3389/feart.2025.1658491

Revealing the Drivers of Turbulence Anisotropy over Flat and Complex Terrain: An Interpretable Machine Learning Approach

Author(s): Samuele Mosso, Karl Lapo, Ivana Stiperski
Published in: Boundary-Layer Meteorology, Issue 191, 2026, Page(s) 51, ISSN 0006-8314
Publisher: Kluwer Academic Publishers
DOI: 10.1007/s10546-025-00946-5

Conference proceedings (25)

Flow structure and turbulence characteristics on a mid-latitude glacier

Author(s): Giordano Nitti, Ivana Stiperski
Published in: EGU General Assembly 2025, 2025
Publisher: Copernicus GmbH
DOI: 10.5194/egusphere-egu25-9826

"The TEAMx Observational Campaign – First findings from the winter campaign"

Author(s): Manuela Lehner, Mathias W. Rotach, Ivana Stiperski, Lena Pfister, Alexander Gohm, Christophe Brun, Jutta Vüllers, Jan Cermak, Andrew Orr, Ian Renfrew, Helen F. Dacre, Charles Chemel
Published in: EGU General Assembly 2025, 2025
Publisher: Copernicus GmbH
DOI: 10.5194/egusphere-egu25-5859

The Structure of the Vertical Temperature Profile and Scaling Relations for Heat of the Near-Surface Stable Boundary Layer

Author(s): Karl Lapo, Lena Pfister, Samuele Mosso, Ivana Stiperski
Published in: 25th Symposium on Boundary Layers and Turbulence, 2025
Publisher: American Meteorological Society

On the sensitivity of turbulent flux profiles to turbulent inflow generation with the eddy recycling method

Author(s): Andreas Rauchöcker, Ivana Stiperski
Published in: EMS Annual Meeting Abstracts, 2024
Publisher: Copernicus GmbH
DOI: 10.5194/ems2024-548

Energy anisotropy, turbulence organization and the role of pressure-redistribution in near-surface unstably-stratified turbulence

Author(s): Ivana Stiperski, Gabriel G. Katul
Published in: EGU General Assembly 2025, 2025
Publisher: Copernicus GmbH
DOI: 10.5194/egusphere-egu25-16649

Extending Generalized Surface Layer Scaling to Diverse, Complex Terrain and Canopies for Improved Land-Atmosphere Exchange

Author(s): Tyler Waterman, Ivana Stiperski, Marc Calaf
Published in: EGU General Assembly 2025, 2025
Publisher: Copernicus GmbH
DOI: 10.5194/egusphere-egu25-11806

Monin-Obukhov Similarity Theory and its Generalization for Complex Atmospheric Turbulence

Author(s): Ivana Stiperski, Marc Calaf
Published in: Oberwolfach Reports, Issue 42, 2022, Page(s) 26-27
Publisher: Mathematisches Forschungsinstitut Oberwolfach
DOI: 10.14760/owr-2022-42

Scalewise Universal Relaxation to Isotropy of Inhomogeneous Atmospheric Boundary Layer Turbulence

Author(s): Ivana Stiperski, Gabriel G Katul, Marc Calaf
Published in: EGU General Assembly 2022, 2022
Publisher: European Geosciences Union
DOI: 10.5194/egusphere-egu22-5934

The Impact of Changing Ice Surfaces on the Glacier Boundary Layer Structure: A Large-eddy Simulation Case Study from Hintereisferner Glacier, Austria

Author(s): Brigitta Goger, Ivana Stiperski
Published in: EMS Annual Meeting Abstracts, 2024
Publisher: Copernicus GmbH
DOI: 10.5194/ems2024-561

Flux-gradient relations: insights from anisotropy analysis

Author(s): Samuele Mosso, Marc Calaf, Ivana Stiperski
Published in: EGU General Assembly 2024, 2024
Publisher: European Geosciences Union
DOI: 10.5194/egusphere-egu24-16046

Universal Flux-variance Scaling Relations based on Turbulence Anisotropy and the Obukhov Length

Author(s): Ivana Stiperski, Marc Calaf
Published in: 24th Symposium on Boundary Layers and Turbulence as part of 103rd Annual Meeting of the American Meteorological Society, 2023
Publisher: American Meteorological Society

Turbulence Anisotropy in the Urban Roughness Sublayer: Bridging Townsend’s Attached Eddy Model and Lumley’s Invariant Analysis

Author(s): Khaled Ghannam, Ivana Stiperski, Marc Calaf, Marco Giometto
Published in: 25th Symposium on Boundary Layers and Turbulence, 2025
Publisher: American Meteorological Society

On the Effect of Turbulence Anisotropy on Flux-Gradient Scaling Relations in Complex Terrain

Author(s): Samuele Mosso, Ivana Stiperski
Published in: 24th Symposium on Boundary Layers and Turbulence as part of 103rd Annual Meeting of the American Meteorological Society, 2023
Publisher: American Meteorological Society

Interpretable machine learning reveals the drivers of turbulence anisotropy over complex terrain.

Author(s): Samuele Mosso, Karl Lapo, Ivana Stiperski
Published in: EMS Annual Meeting Abstracts, 2024
Publisher: Copernicus GmbH
DOI: 10.5194/ems2024-215

Generalized MOST Framework with Turbulence Anisotropy as a Boundary Condition for High Resolution Large-Eddy-Simulations

Author(s): Benjamin Mark Udina, Ivana Stiperski, Marc Calaf
Published in: 25th Symposium on Boundary Layers and Turbulence, 2025
Publisher: American Meteorological Society

Examining Turbulent Flow Anisotropy: Insights from Simplified Variance Budget Analyses

Author(s): Ivana Stiperski, Gabriel G Katul, Marc Calaf
Published in: EGU General Assembly 2024, 2024
Publisher: European Geosciences Union
DOI: 10.5194/egusphere-egu24-15135

Spectral Scaling in Unstably Stratified Atmospheric Flows: Understanding the Low Frequency Spread of Kaimal's Model

Author(s): Claudine Charrondiere, Ivana Stiperski
Published in: 24th Symposium on Boundary Layers and Turbulence as part of 103rd Annual Meeting of the American Meteorological Society, 2023
Publisher: American Meteorological Society

Exploring the importance of horizontal transport terms in a katabatic flow over a glacier

Author(s): Ilga Staudinger, Ivana Stiperski
Published in: EGU General Assembly 2025, 2025
Publisher: Copernicus GmbH
DOI: 10.5194/egusphere-egu25-9840

Flow Structure and Turbulence Characteristics of a Mid-Latitude Glacier Boundary Layer

Author(s): Ivana Stiperski, Giordano Nitti
Published in: 25th Symposium on Boundary Layers and Turbulence, 2025
Publisher: American Meteorological Society

Beyond Monin-Obukhov Similarity Theory and the Implications for Turbulence over Complex Terrain

Author(s): Ivana Stiperski, Marc Calaf, Claudine Charrondiere, Samuele Mosso
Published in: EMS Annual Meeting Abstracts, Issue 20, 2023
Publisher: European Meteorological Society
DOI: 10.5194/ems2023-5

Turbulence anisotropy in unstable stratified flows over hills: an idealized large eddy simulation study

Author(s): Damian Wójcik, Ivana Stiperski
Published in: EMS Annual Meeting Abstracts, 2024
Publisher: Copernicus GmbH
DOI: 10.5194/ems2024-450

Directionality of the Turbulent Exchange of Momentum: an Eigen-Decomposition Approach

Author(s): Federica Gucci, Samuele Mosso, Nikki Vercauteren, Ivana Stiperski
Published in: 25th Symposium on Boundary Layers and Turbulence, 2025
Publisher: American Meteorological Society

Energy Anisotropy, Turbulence Organization and the Role of Pressure-Redistribution in Near-Surface Unstably-Stratified Turbulence

Author(s): Ivana Stiperski, Gabriel G. Katul, Elie Bou-Zeid, Marc Calaf
Published in: 25th Symposium on Boundary Layers and Turbulence, 2025
Publisher: American Meteorological Society

Applicability of Non-Dimensional Gradients of Mean Wind Speed in Complex Mountainous Terrain

Author(s): Lena Pfister, Eleni Sfyri, Ivana Stiperski, Mathias W Rotach
Published in: 24th Symposium on Boundary Layers and Turbulence as part of 103rd Annual Meeting of the American Meteorological Society, 2023
Publisher: American Meteorological Society

Universal Patterns of Scalewise Return to Isotropy of Turbulent Flows over Complex Terrain

Author(s): Ivana Stiperski, Gabriel G Katul, Marc Calaf
Published in: 24th Symposium on Boundary Layers and Turbulence as part of 103rd Annual Meeting of the American Meteorological Society, 2023
Publisher: American Meteorological Society

Other (3)

Stratification, turbulence organization, and pressure-strain effects on surface-layer turbulence anisotropy

Author(s): Ivana Stiperski, Gabriel G. Katul, Elie Bou-Zeid, Marc Calaf
Published in: Journal of Fluid Mechanics, 2026
Publisher: Cambridge University Press
DOI: 10.48550/arxiv.2512.03875

Turbulence Anisotropy and the Roughness Sublayer in diverse Canopy Flows: a pathway for generalization

Author(s): Benjamin Mark Udina, Ivana Stiperski, Gabriel G. Katul, Marcelo Chamecki, Marco Giovanni Giometto, Marc Calaf
Published in: 2026
Publisher: Wiley
DOI: 10.22541/essoar.176804856.69694601/v1

Impact of Heterogeneity on Scalar Flux Variance Relations Across Diverse Ecosystems

Author(s): Tyler Waterman, Ivana Stiperski, Laura Torres-Rojas, Marc Calaf
Published in: Agricultural and Forest Meteorology, 2025, ISSN 1873-2240
Publisher: Elsevier B.V.
DOI: 10.48550/arxiv.2509.18385

Non-peer reviewed articles (1)

Editorial: Resolving atmospheric flow in complex environments: recent experiments in terrain and forest canopies

Author(s): Robert S. Arthur, Michael Brown, Matthias Mauder, Holly J. Oldroyd, Ivana Stiperski, Sonia Wharton1
Published in: Frontiers in Earth Science, 2024, ISSN 2296-6463
Publisher: Frontiers in Earth Science
DOI: 10.3389/feart.2024.1439996