Anna K. Liljedahl

TL;DR: In this paper, the authors use field and remote sensing observations to document polygon succession due to ice-wedge degradation and trough development in ten Arctic localities over subdecadal timescales.

TL;DR: It is found that emissions during the cold season account for ≥50% of the annual CH4 flux, with the highest emissions from noninundated upland tundra, and regional scale fluxes of CH4 derived from aircraft data demonstrate the large spatial extent of late season CH4 emissions.

TL;DR: This article quantified the multi-year control on midday Arctic coastal wetland evapotranspiration, measured with the eddy covariance method at two vegetated, drained thaw lake basins near Barrow, Alaska.

TL;DR: The findings show that the Mask R-CNN is a robust method to automatically identify ice-wedge polygons from fine-resolution optical imagery, and can provide a foundational framework that may propel future pan-Arctic studies of permafrost thaw, tundra landscape evolution, and the role of high latitudes in the global climate system.

TL;DR: In this article, a new ecosystem model framework, the dynamic organic soil version of the Terrestrial Ecosystem Model, was proposed for simulating soil thermal and hydrological dynamics within soil profiles that contain a live moss horizon, fibrous and amorphous organic horizons and mineral soil horizons.