Erik Schytt Mannerfelt
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View article: Supplementary material to "Glacier surge activity over Svalbard from 1992 to 2025 interpreted using heritage satellite radar missions and Sentinel-1"
Supplementary material to "Glacier surge activity over Svalbard from 1992 to 2025 interpreted using heritage satellite radar missions and Sentinel-1" Open
View article: Glacier surge activity over Svalbard from 1992 to 2025 interpreted using heritage satellite radar missions and Sentinel-1
Glacier surge activity over Svalbard from 1992 to 2025 interpreted using heritage satellite radar missions and Sentinel-1 Open
Based on massive processing of heritage radar data from the satellite missions ERS-1/2, JERS-1, ENVISAT ASAR, ALOS PALSAR and Radarsat-2, and in combination with data from the current Sentinel-1 and ALOS-2 PALSAR-2 missions, we compiled a …
View article: Comment on essd-2025-490
Comment on essd-2025-490 Open
View article: Model-based analysis of solute transport and potential carbon mineralization in the active layer of a hillslope underlain by permafrost with seasonal variability and climate change
Model-based analysis of solute transport and potential carbon mineralization in the active layer of a hillslope underlain by permafrost with seasonal variability and climate change Open
Permafrost carbon, stored in frozen organic matter across vast Arctic and sub-Arctic regions, represents a substantial and increasingly vulnerable carbon reservoir. As global temperatures rise, the accelerated thawing of permafrost release…
View article: Surging glaciers in Svalbard: Observing their distribution, characteristics and evolution
Surging glaciers in Svalbard: Observing their distribution, characteristics and evolution Open
Glacier surges are episodes of significantly increased ice flow due to ice-dynamical feedbacks, and are often repeated in a quasi-periodical manner. Ice mass is redistributed during a surge, which leads to surface lowering at high elevatio…
View article: Global detection of glacier surges from surface velocities, elevation change and SAR backscatter data between 2000 and 2024: a test of surge mechanism theories
Global detection of glacier surges from surface velocities, elevation change and SAR backscatter data between 2000 and 2024: a test of surge mechanism theories Open
The systematic investigation of individual glacier surges across a large statistical sample is key to a better understanding of surge mechanisms. This study introduces a consistent framework for identifying glacier surges from diverse remo…
View article: Tracking glacier surge evolution using interferometric SAR coherence—examples from Svalbard
Tracking glacier surge evolution using interferometric SAR coherence—examples from Svalbard Open
We present a practically simple methodology for tracking glacier surge onset and evolution using interferometric synthetic aperture radar (InSAR) coherence. Detecting surges early and monitoring their build-up is interesting for a multitud…
View article: Dynamic LIA advances hastened the demise of small valley glaciers in central Svalbard
Dynamic LIA advances hastened the demise of small valley glaciers in central Svalbard Open
Most small land-terminating glaciers in Svalbard have experienced large recession since the Little Ice Age (LIA) and today are thin, cold, and largely inactive. This likely contrasts to their LIA conditions, but the observational record fr…
View article: Tracking glacier surge evolution using interferometric SAR coherence — examples from Svalbard
Tracking glacier surge evolution using interferometric SAR coherence — examples from Svalbard Open
We present a practically simple methodology for tracking glacier surge onset and evolution using interferometric Synthetic Aperture Radar (InSAR) coherence. Detecting surges early and monitoring their build-up is interesting for a multitud…
View article: Comment on egusphere-2024-1606
Comment on egusphere-2024-1606 Open
Abstract. Permafrost carbon, stored in frozen organic matter across vast Arctic and sub-Arctic regions, represents a substantial and increasingly vulnerable carbon reservoir. As global temperatures rise, the accelerated th…
View article: Model-based analysis of solute transport and potential carbon mineralization in a permafrost catchment under seasonal variability and climate change
Model-based analysis of solute transport and potential carbon mineralization in a permafrost catchment under seasonal variability and climate change Open
Permafrost carbon, stored in frozen organic matter across vast Arctic and sub-Arctic regions, represents a substantial and increasingly vulnerable carbon reservoir. As global temperatures rise, the accelerated thawing of permafrost release…
View article: Supplementary material to "Model-based analysis of solute transport and potential carbon mineralization in a permafrost catchment under seasonal variability and climate change"
Supplementary material to "Model-based analysis of solute transport and potential carbon mineralization in a permafrost catchment under seasonal variability and climate change" Open
After surveying the subcatchment in Endalen valley by drone, we process the survey in the photogrammetrical suite Agisoft Metashape version 1.8.4 using the default processing settings.We register the survey data to the 2009 Digital Elevati…
View article: Disaggregating the Carbon Exchange of Degrading Permafrost Peatlands Using Bayesian Deep Learning
Disaggregating the Carbon Exchange of Degrading Permafrost Peatlands Using Bayesian Deep Learning Open
Extensive regions in the permafrost zone are projected to become climatically unsuitable to sustain permafrost peatlands over the next century, suggesting transformations in these landscapes that can leave large amounts of permafrost carbo…
View article: Observed weakening of glacier ice-bed interface caused by climatic and hydro-mechanical feedbacks: towards glacier-wide acceleration?
Observed weakening of glacier ice-bed interface caused by climatic and hydro-mechanical feedbacks: towards glacier-wide acceleration? Open
Stronger and more widespread surface melt may alter the flow of glaciers and ice sheets and trigger instability. However, observational deficiencies hamper our ability to better understand and thus predict such responses. We deployed…
View article: UAV survey images of the eastern Endalen slope, Svalbard
UAV survey images of the eastern Endalen slope, Svalbard Open
A UAV survey of the eastern hillslope in Endalen, Svalbard. The survey consists of 428 post-processed drone images in a tif format, taken by a DJI Mavic 2 Pro on 8 August 2022. The post-processing consisted of applying regular photographic…
View article: UAV survey images of the eastern Endalen slope, Svalbard
UAV survey images of the eastern Endalen slope, Svalbard Open
A UAV survey of the eastern hillslope in Endalen, Svalbard. The survey consists of 428 post-processed drone images in a tif format, taken by a DJI Mavic 2 Pro on 8 August 2022. The post-processing consisted of applying regular photographic…
View article: Groundwater springs formed during glacial retreat are a large source of methane in the high Arctic
Groundwater springs formed during glacial retreat are a large source of methane in the high Arctic Open
View article: Global clustering of recent glacier surges from radar backscatter data, 2017–2022
Global clustering of recent glacier surges from radar backscatter data, 2017–2022 Open
Using global Sentinel-1 radar backscatter data, we systematically map the locations of glaciers with surge-type activity during 2017–22. Patterns of pronounced increases or decreases in the strongest backscatter between two winter seasons …
View article: Disaggregating the carbon exchange of degrading permafrost peatlands using Bayesian deep learning
Disaggregating the carbon exchange of degrading permafrost peatlands using Bayesian deep learning Open
Extensive regions in the permafrost zone are projected to become climatically unsuitable to sustain permafrost peatlands over the next century, suggesting transformations in these landscapes that can leave large amounts of permafrost carbo…
View article: Glacial retreat driving enhanced methane emissions in the high Arctic
Glacial retreat driving enhanced methane emissions in the high Arctic Open
Permafrost and glaciers in the high Arctic form an impermeable ‘cryospheric cap’ that traps a large reservoir of sub-surface methane and hinders it from reaching the atmosphere. The vulnerability of the cryosphere to climate wa…
View article: Brief communication: An autonomous UAV for catchment-wide monitoring of a debris flow torrent
Brief communication: An autonomous UAV for catchment-wide monitoring of a debris flow torrent Open
Debris flows threaten communities in mountain regions worldwide. Combining modern photogrammetric processing with autonomous unoccupied aerial vehicle (UAV) flights at sub-weekly intervals allows mapping of sediment dynamics in a debris fl…
View article: Halving of Swiss glacier volume since 1931 observed from terrestrial image photogrammetry
Halving of Swiss glacier volume since 1931 observed from terrestrial image photogrammetry Open
The monitoring of glaciers in Switzerland has a long tradition, yet glacier changes during the 20th century are only known through sparse observations. Here, we estimate a halving of Swiss glacier volumes between 1931 and 2016 by mapping h…
View article: Uncertainty Analysis of Digital Elevation Models by Spatial Inference From Stable Terrain – Dataset
Uncertainty Analysis of Digital Elevation Models by Spatial Inference From Stable Terrain – Dataset Open
Dataset of Hugonnet et al. (2022), Uncertainty Analysis of Digital Elevation Models by Spatial Inference From Stable Terrain. The data is composed of: For the Mont-Blanc case study: the Pléiades reference …
View article: Uncertainty Analysis of Digital Elevation Models by Spatial Inference From Stable Terrain – Dataset
Uncertainty Analysis of Digital Elevation Models by Spatial Inference From Stable Terrain – Dataset Open
Dataset of Hugonnet et al. (2022), Uncertainty Analysis of Digital Elevation Models by Spatial Inference From Stable Terrain. The data is composed of: For the Mont-Blanc case study: the Pléiades reference …
View article: Comment on egusphere-2022-156
Comment on egusphere-2022-156 Open
Debris flows threaten communities in mountain regions worldwide. Combining modern photogrammetric processing with autonomous unmanned aerial vehicle (UAV) flights at sub-weekly intervals allows mapping of sediment dynamics in a debris flow…
View article: Reply on RC1
Reply on RC1 Open
Abstract. The monitoring of glaciers in Switzerland has a long tradition, yet glacier changes during the 20th century are only known through sparse observations. Here, we estimate a halving of Swiss glacier volumes between…
View article: Reply on RC2
Reply on RC2 Open
Abstract. The monitoring of glaciers in Switzerland has a long tradition, yet glacier changes during the 20th century are only known through sparse observations. Here, we estimate a halving of Swiss glacier volumes between…
View article: Reply on CC1
Reply on CC1 Open
Abstract. The monitoring of glaciers in Switzerland has a long tradition, yet glacier changes during the 20th century are only known through sparse observations. Here, we estimate a halving of Swiss glacier volumes between…
View article: Reply on RC3
Reply on RC3 Open
Abstract. The monitoring of glaciers in Switzerland has a long tradition, yet glacier changes during the 20th century are only known through sparse observations. Here, we estimate a halving of Swiss glacier volumes between…
View article: Dataset: Halving of Swiss glacier volume since 1931 observed from terrestrial image photogrammetry
Dataset: Halving of Swiss glacier volume since 1931 observed from terrestrial image photogrammetry Open
This is supplementary data for the article currently in review for The Cryosphere, titled "Halving of Swiss glacier volume since 1931 observed from terrestrial image photogrammetry". See the preprint here