de.pangaea.dataset987462 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-04-30T06:23:53Z https://doi.pangaea.de/10.1594/PANGAEA.987462 <gco:CharacterString>Caucasus glaciers debris cover inventory for 2000 and 2020</gco:CharacterString> 2025-11-18T12:05:13 publication https://doi.org/10.1594/PANGAEA.987462 Gubanov, Afanasy
afanasygubanov@gmail.com
https://orcid.org/0009-0007-1145-5878 information author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital The current stage of glaciation degradation is also manifested in the intensification of the input of lithogenic material to the glacier surface. Surface deposits significantly affect the ablation of glacier ice, which directly affects the glacier runoff and the glacier mass balance. For the entire Greater Caucasus, the moraine boundaries were determined using semi-automated methods [Scherler et al., 2018; Herreid & Pellicciotti, 2020; Tielidze et al., 2024, etc.]. This database presents the results of manual interpretation of the moraine cover boundaries as of 2000 (according to Landsat-7 data) and 2020 (Sentinel-2). The buffer method was used to assess the accuracy of determining the area of moraine-covered ice. As a result, from 2000 to 2020, the number of glaciers with noticeable moraine cover increased from 763 (34% of the number of glaciers in the Caucasus) to 1274 (58%), and their area - from 132.5 ± 8.6 km² (8-9% of the glacier area) to 163.9 ± 5.9 km² (14-15%). Due to the active degradation of glaciation, the activity of the lithogenic material input from the rocky surroundings of glaciers increased. The gradual rise of the kinematic boundary of the supply of glaciers in the Caucasus, characteristic of the modern evolutionary stage, leads to a characteristic tendency: over time, the melting of the first portions of moraine material along the flow line onto the daytime surface of the glacier is recorded higher and higher upstream, which is what we see when comparing 2000 and 2020 debris. The projection of the moraine cover during the retreat of glaciers often leads to the damming of the periglacial area and the formation of dangerous lakes. completed Gubanov, Afanasy
afanasygubanov@gmail.com
https://orcid.org/0009-0007-1145-5878 information principalInvestigator Caucasus Climate change debris cover debris-covered glacier GIS data Glacier high-altitude Ice Melt moraine shapefile theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation 39.8778912 47.89671 41.20505 44.00044 Shapefile - contours of debris cover on glaciers (2000 based on RGI-7 catalogue for Caucasus, 2020 - on (Tielidze et al., 2018; Tielidze et al. 2022)) in WGS 1984 UTM 38N coordinate system. Attribute table contains: author ID, related-glaciers № and ID (RGI, WGI, other ID's), area as in year 2000 and 2020, river basin, Caucasus section (North or South, West-Central-East). File content thematicClassification Processing software thematicClassification Date of determination thematicClassification start Date of determination thematicClassification end Binary Object thematicClassification ArcMap software Binary Object (File Size) physicalMeasurement ArcMap software Bytes Bytes text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.987462?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: Caucasus_Debris_Contour * LATITUDE START: 41.205050 * LONGITUDE START: 39.877891 * LATITUDE END: 44.000440 * LONGITUDE END: 47.896710 * LOCATION: Greater Caucasus * METHOD/DEVICE: ArcMap software References <gco:CharacterString>The state of rock debris covering Earth’s glaciers</gco:CharacterString> 2020-01-01 publication https://doi.org/10.1038/s41561-020-0615-0 Herreid, Sam https://orcid.org/0000-0001-9846-7909 information author Pellicciotti, Francesca author documentDigital Nature Geoscience 13(9) 621-627 References <gco:CharacterString>Global Assessment of Supraglacial Debris-Cover Extents</gco:CharacterString> 2018-01-01 publication https://doi.org/10.1029/2018GL080158 Scherler, Dirk https://orcid.org/0000-0003-3911-2803 information author Wulf, Hendrik https://orcid.org/0000-0002-6161-428X information author Gorelick, Noel https://orcid.org/0000-0002-5548-2436 information author documentDigital Geophysical Research Letters 45(21) References <gco:CharacterString>Mapping of Supra-Glacial Debris Cover in the Greater Caucasus: A Semi-Automated Multi-Sensor Approach</gco:CharacterString> 2024-01-01 publication https://doi.org/10.3390/geosciences14070178 Tielidze, Levan
levan.tielidze@tsu.ge
https://orcid.org/0000-0002-4646-5458 information author Iacob, George author Holobâcă, Iulian Horia https://orcid.org/0000-0002-6170-1287 information author documentDigital Geosciences 14(7) 178 References <gco:CharacterString>Strong acceleration of glacier area loss in the Greater Caucasus between 2000 and 2020</gco:CharacterString> 2022-01-01 publication https://doi.org/10.5194/tc-16-489-2022 Tielidze, Levan
levan.tielidze@tsu.ge
https://orcid.org/0000-0002-4646-5458 information author Nosenko, Gennady A author Khromova, Tatiana E author Paul, Frank
frank.paul@geo.uzh.ch
author documentDigital The Cryosphere 16(2) 489-504 References <gco:CharacterString>The Greater Caucasus Glacier Inventory (Russia, Georgia and Azerbaijan)</gco:CharacterString> 2018-01-01 publication https://doi.org/10.5194/tc-12-81-2018 Tielidze, Levan
levan.tielidze@tsu.ge
https://orcid.org/0000-0002-4646-5458 information author Wheate, Roger D author documentDigital The Cryosphere 12(1) 81-94