Citation:

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

Further details:

Image of a shapefile from the Lena Delta lakes terraces

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: (Remote Sensing of POlar Non-glaciated and Sensitive Environments) * Basis: AWI Arctic Land Expedition

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: (Remote Sensing of POlar Non-glaciated and Sensitive Environments) * Basis: AWI Arctic Land Expedition

LenaDelta_lakes * Latitude Start: 73.931572 * Longitude Start: 122.242185 * Latitude End: 71.672259 * Longitude End: 129.476185 * Location: Lena Delta, Siberia, Russia * Campaign: (Remote Sensing of POlar Non-glaciated and Sensitive Environments) * Basis: AWI Arctic Land Expedition

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):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event
2	File size	File size	kByte	Morgenstern, Anne
3	Uniform resource locator/link to file	URL file		Morgenstern, Anne	ESRI shape, zipped
4	Uniform resource locator/link to image	URL image		Morgenstern, Anne	Overview
5	Comment	Comment		Morgenstern, Anne

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

16 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 File size [kByte]	3 URL file	4 URL image	5 Comment
LenaDelta_lakes	894	hdl:10013/epic.38816.d003	hdl:10013/epic.38816.d007	Lake inventory of the Lena River Delta (vector data)
LenaDelta_lakes_divided	936	hdl:10013/epic.38816.d004	hdl:10013/epic.38816.d008	Lake inventory of the Lena River Delta (vector data)
LenaDelta_2nd_terrace	226	hdl:10013/epic.38816.d001	hdl:10013/epic.38816.d005	Geomorphological main 2nd terrace of the Lena River Delta (vector data)
LenaDelta_3rd_terrace	39	hdl:10013/epic.38816.d002	hdl:10013/epic.38816.d006	Geomorphological main 3rd terrace of the Lena River Delta (vector data)