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Morgenstern, Anne; Röhr, Christina; Grosse, Guido; Grigoriev, Mikhail N (2011): The Lena River Delta - inventory of lakes and geomorphological terraces. Alfred Wegener Institute - Research Unit Potsdam, PANGAEA, https://doi.org/10.1594/PANGAEA.758728

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Abstract:
This data set provides a detailed inventory of lakes in the Lena Delta, northern Siberia, with respect to the lakes' association with one of the three geomorphological main terraces of the Lena Delta. The inventory is based on Landsat-7 ETM+ image data and spatial analysis in a Geographical Information System (GIS). Several morphometric lake attributes were determined from the resulting dataset and statistically analyzed. Significant differences in the morphometric lake characteristics allowed the distinction of a mean lake type for each main terrace. The lake types reflect the special lithological and cryolithological conditions and geomorphological processes prevailing on each terrace. In Morgenstern et al. (2008), special focus was laid on the investigation of lake orientation and the discussion of possible mechanisms for the evolution of the second terrace's oriented lakes.
Related to:
Morgenstern, Anne (2005): GIS-basierte Analyse der Morphometrie und räumlichen Verteilung von Seen im Lena-Delta, NO-Sibirien. Diploma Thesis, Institut für Geoökologie, Universität Potsdam
Morgenstern, Anne; Grosse, Guido; Schirrmeister, Lutz (2008): Genetic, morphological, and statistical characterization of lakes in the permafrost-dominated Lena Delta. in: Kane, D L; Hinkel, K M (eds.) (2008) Permafrost: proceedings of the 9th International Conference on Permafrost, 29 June - 3 July 2008, Fairbanks, Alaska, Institute of Northern Engineering, University of Alaska Fairbanks, 1239-1244, hdl:10013/epic.31930.d001
Röhr, Christina (2001): Die Erstellung eines digitalen Atlas der arktischen Region Lena Delta (Nordjakutien). Diploma Thesis, TU Bergakademie Freiberg, 42 pp
Schneider, Julia; Grosse, Guido; Wagner, Dirk (2009): Land cover classification of tundra environments in the Arctic Lena Delta based on Landsat 7 ETM+ data and its application for upscaling of methane emissions. Remote Sensing of Environment, 113(2), 380-391, https://doi.org/10.1016/j.rse.2008.10.013
Coverage:
Median Latitude: 72.868442 * Median Longitude: 125.586428 * South-bound Latitude: 71.672259 * West-bound Longitude: 122.242185 * North-bound Latitude: 73.931572 * East-bound Longitude: 129.476185
Event(s):
LenaDelta_2nd_terrace * Latitude Start: 73.832774 * Longitude Start: 123.128900 * Latitude End: 72.762904 * Longitude End: 126.545573 * Location: Lena Delta, Siberia, Russia * Campaign: RESPONSE (Remote Sensing of POlar Non-glaciated and Sensitive Environments) * Basis: Sampling on land
LenaDelta_3rd_terrace * Latitude Start: 73.126310 * Longitude Start: 122.552156 * Latitude End: 72.017885 * Longitude End: 129.028053 * Location: Lena Delta, Siberia, Russia * Campaign: RESPONSE (Remote Sensing of POlar Non-glaciated and Sensitive Environments) * Basis: Sampling on land
LenaDelta_lakes * Latitude Start: 73.931572 * Longitude Start: 122.242185 * Latitude End: 71.672259 * Longitude End: 129.476185 * Location: Lena Delta, Siberia, Russia * Campaign: RESPONSE (Remote Sensing of POlar Non-glaciated and Sensitive Environments) * Basis: Sampling on land
Comment:
The lake data sets were automatically extracted from a Landsat 7 ETM+ mosaic of the Lena delta (Schneider et al. 2009) by using grey-level thresholding of band 5 (Morgenstern et al., 2008). On the second terrace in the western Lena Delta, several coalesced lakes occur, which is obvious from deep basins divided by flat underwater ridges, some of them cut by deeper channels beneath the present lake water level. As our analyses were aimed on lake genesis, we manually divided the coalesced lakes (n=51) along the middle line of the ridges into their single basins and treated each basin as an individual lake (n=120 of which n=17 < 20 ha were excluded from further analysis).
The second geomorphological terrace of the Lena River Delta was modified from Röhr (2001) on the basis of a Landsat 7 ETM+ mosaic (Schneider et al., 2009) with expert advice from Mikhail N. Grigoriev (Morgenstern et al., 2008). The third geomorphological terrace of the Lena River Delta was manually digitized by G. Grosse, AWI Potsdam, based on Landsat 7 ETM+ data of the Lena delta, then modified by Anne Morgenstern with field and expert advice from Mikhail N. Grigoriev (Morgenstern et al., 2008). See further details for an overview of region.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEvent
2File sizeFile sizekByteMorgenstern, Anne
3Uniform resource locator/link to fileURL fileMorgenstern, AnneESRI shape, zipped
4Uniform resource locator/link to imageURL imageMorgenstern, AnneOverview
5CommentCommentMorgenstern, Anne
Size:
16 data points

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