Preprints
https://doi.org/10.5194/essd-2023-36
https://doi.org/10.5194/essd-2023-36
24 Feb 2023
 | 24 Feb 2023
Status: this preprint is currently under review for the journal ESSD.

A new habitat map of the Lena Delta in Arctic Siberia based on field and remote sensing datasets

Simeon Lisovski, Alexandra Runge, Iuliia Shevtsova, Nele Landgraf, Anne Morgenstern, Ronald Reagan Okoth, Matthias Fuchs, Nikolay Lashchinskiy, Carl Stadie, Alison Beamish, Ulrike Herzschuh, Guido Grosse, and Birgit Heim

Abstract. The Lena Delta is the largest river delta in the Arctic (about 30 000 km2) and prone to rapid changes due to climate warming, associated cryosphere loss and ecological shifts. The delta is characterized by ice-rich permafrost landscapes and consists of geologically and geomorphologically diverse terraces covered with tundra vegetation and of active floodplains, featuring approximately 6 500 km of channels and over 30 000 lakes. Because of its broad landscape and habitat diversity the delta is a biodiversity hotspot with high numbers of nesting and breeding migratory birds, fish, caribou and other mammals and was designated a State Nature Reserve in 1995. Characterizing plant composition, above ground biomass and application of field spectroscopy was a major focus of a 2018 expedition to the delta. These field data collections were linked to Sentinel-2 satellite data to upscale local patterns in land cover and associated habitats to the entire delta. Here, we describe multiple field datasets collected in the Lena Delta during summer 2018 including foliage projective cover (Shevtsova et al., 2021a), above ground biomass (Shevtsova et al., 2021b), and hyperspectral field measurements (Runge et al., 2022, https://doi.pangaea.de/10.1594/PANGAEA.945982). We further describe a detailed Sentinel-2 satellite image-based classification of habitat types for the central Lena Delta (Landgraf et al., 2022), an upscaled classification for the entire Lena Delta (Lisovski et al., 2022), as well as a synthesis product for disturbance regimes (Heim and Lisovski, 2023, https://doi.org/10.5281/zenodo.7575691) in the delta that is based on the classification, the described datasets, and field expertise. We present context and detailed methods of these openly available datasets and show how they can improve our understanding of the rapidly changing Arctic tundra system. The new Lena Delta habitat distribution dataset represents a first baseline against which future observations can be compared. With the link between such detailed habitat type classifications and disturbance regimes future upscaling efforts may provide a better understanding of how Arctic lowland landscapes will respond to climate change and how this will impact land surface processes.

Simeon Lisovski, Alexandra Runge, Iuliia Shevtsova, Nele Landgraf, Anne Morgenstern, Ronald Reagan Okoth, Matthias Fuchs, Nikolay Lashchinskiy, Carl Stadie, Alison Beamish, Ulrike Herzschuh, Guido Grosse, and Birgit Heim

Status: open (extended)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2023-36', Anonymous Referee #1, 11 Feb 2024 reply
Simeon Lisovski, Alexandra Runge, Iuliia Shevtsova, Nele Landgraf, Anne Morgenstern, Ronald Reagan Okoth, Matthias Fuchs, Nikolay Lashchinskiy, Carl Stadie, Alison Beamish, Ulrike Herzschuh, Guido Grosse, and Birgit Heim

Data sets

Foliage projective cover of 26 vegetation sites of central Lena Delta from 2018 Iuliia Shevtsova, Nikolay Laschinskiy, Birgit Heim, and Ulrike Herzschuh https://doi.pangaea.de/10.1594/PANGAEA.935875

Total above-ground biomass of 25 vegetation sites of central Lena Delta from 2018 Iuliia Shevtsova, Birgit Heim, Alexandra Runge, Matthias Fuchs, Jan Melchert, and Ulrike Herzschuh https://doi.pangaea.de/10.1594/PANGAEA.935923

Hyperspectral field spectrometry of Arctic vegetation units in the central Lena Delta Alexandra Runge, Matthias Fuchs, Iuliia Shevtsova, Nele Landgraf, Birgit Heim, Ulrike Herzschuh, and Guido Grosse https://doi.org/10.1594/PANGAEA.945982

Sentinel-2 derived central Lena Delta land cover classification Nele Landgraf, Iuliia Shevtsova, Bringfried Pflug, and Birgit Heim https://doi.pangaea.de/10.1594/PANGAEA.945057

Lena Delta Land Cover Classification (2018, Sentinel-2) Simeon Lisovski, Alexandra Runge, Ronald Reagan, Iuliia Shevtsova, and Birgit Heim https://doi.pangaea.de/10.1594/PANGAEA.946407

Lena Delta habitat disturbance regimes Simeon Lisovski and Birgit Heim https://zenodo.org/record/7575691

Simeon Lisovski, Alexandra Runge, Iuliia Shevtsova, Nele Landgraf, Anne Morgenstern, Ronald Reagan Okoth, Matthias Fuchs, Nikolay Lashchinskiy, Carl Stadie, Alison Beamish, Ulrike Herzschuh, Guido Grosse, and Birgit Heim

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Short summary
The Lena Delta is the largest river delta in the Arctic, and represents a biodiversity hotspot. Here, we describe multiple field datasets and a detailed habitat classification map for the Lena Delta. We present context and methods of these openly available datasets and show how they can improve our understanding of the rapidly changing Arctic tundra system.
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