Incorporating InSAR kinematics into rock glacier inventories: insights from 11 regions worldwide

• Autores: Bertone, Aldo; Barboux, Chloé; Bodin, Xavier; Bolch, Tobias; Brardinoni, Francesco; Caduff, Rafael; Christiansen, Hanne H.; Darrow, Margaret M.; Delaloye, Reynald; Etzelmüller, Bernd; Humlum, Ole; Lambiel, Christophe; Lilleøren, Karianne S.; Mair, Volkmar; Pellegrinon, Gabriel; Rouyet, Line; Ruiz, Lucas Ernesto; Strozzi, Tazio
• Año de publicación: 2022
• Idioma: inglés
• Tipo de recurso: artículo
• Materia: ROCK GLACIER; SAR; KINEMATIC INFORMATION; PERMAFROST
• Institución: Consejo Nacional de Investigaciones Científicas y Técnicas

Rock glaciers are landforms related to permafrost creep that are sensitive to climate variability and change. Their spatial distribution and kinematic behaviour can be critical for managing water resources and geohazards in periglacial areas. Rock glaciers have been inventoried for decades worldwide, often without assessment of their kinematics. The availability of remote sensing data however makes the inclusion of kinematic information potentially feasible, but requires a common methodology in order to create homogeneous inventories. In this context, the International Permafrost Association (IPA) Action Group on rock glacier inventories and kinematics (2018-2023), with the support of the European Space Agency (ESA) Permafrost Climate Change Initiative (CCI) project, is defining standard guidelines for the inclusion of kinematic information within inventories. Here, we demonstrate the feasibility of applying common rules proposed by the Action Group in 11 regions worldwide. Spaceborne interferometric synthetic aperture radar (InSAR) was used to characterise identifiable moving areas related to rock glaciers, applying a manual and a semi-automated approach. Subsequently, these areas were used to assign kinematic information to rock glaciers in existing or newly compiled inventories. More than 5000 moving areas and more than 3600 rock glaciers were classified according to their kinematics. The method and the preliminary results were analysed. We identified drawbacks related to the intrinsic limitations of InSAR and to various applied strategies regarding the integration of non-moving rock glaciers in some investigated regions. This is the first internationally coordinated work that incorporates kinematic attributes within rock glacier inventories at a global scale. The results show the value of designing standardised inventorying procedures for periglacial geomorphology. Copyright:
Fil: Bertone, Aldo. Universidad de Bologna; Italia. Universite de Fribourg;
Fil: Barboux, Chloé. Universite de Fribourg;
Fil: Bodin, Xavier. Université Savoie Mont Blanc; Francia
Fil: Bolch, Tobias. University of St. Andrews; Reino Unido
Fil: Brardinoni, Francesco. Universidad de Bologna; Italia
Fil: Caduff, Rafael. Gamma Remote Sensing; Suiza
Fil: Christiansen, Hanne H.. The University Centre in Svalbard; Noruega
Fil: Darrow, Margaret M.. University of Alaska; Estados Unidos
Fil: Delaloye, Reynald. Universite de Fribourg;
Fil: Etzelmüller, Bernd. University of Oslo; Noruega
Fil: Humlum, Ole. University of Oslo; Noruega. The University Centre in Svalbard; Noruega
Fil: Lambiel, Christophe. Universite de Lausanne; Suiza
Fil: Lilleøren, Karianne S.. University of Oslo; Noruega
Fil: Mair, Volkmar. Office For Geology And Building Materials Testing; Italia
Fil: Pellegrinon, Gabriel. Universidad de Bologna; Italia
Fil: Rouyet, Line. Norce Norwegian Research Centre; Noruega
Fil: Ruiz, Lucas Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Strozzi, Tazio. Gamma Remote Sensing; Suiza