Interannual variations in the areas of thermokarst lakes in Central Yakutia

Тарасенко, Т. В.

doi:10.1134/s0097807813010107

Cited by 20 publications

(21 citation statements)

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“…The same wetting pattern has been described by Boike et al [34], who used Landsat snapshots and found an increase of around 85% from 2002 to 2009 within the strongest wetting part of the CYA study site. The strongest increase in lake area occurred in 2007 after above-average precipitation in the prior year [44]. Furthermore, this particular region has been subject to very strong rates of lake expansion over the last decades due to several factors, including anthropogenic activity and the change of climatic conditions [43,67].…”

Section: Comparison Of Sites and Prior Studiesmentioning

confidence: 99%

“…However, due to the limited extent and availability of very high resolution imagery, the studies were usually focused on rather small, image-footprint limited regions [40][41][42][43]. With the focus on single observations so far, the potentially strong intra-annual variation of water-bodies [27,44] cannot be sufficiently accounted for. Moreover, the diversity of data sources and acquisition timing results in limited comparability between different studies.…”

Section: Introductionmentioning

confidence: 99%

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Landsat-Based Trend Analysis of Lake Dynamics across Northern Permafrost Regions

et al. 2017

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Lakes are a ubiquitous landscape feature in northern permafrost regions. They have a strong impact on carbon, energy and water fluxes and can be quite responsive to climate change. The monitoring of lake change in northern high latitudes, at a sufficiently accurate spatial and temporal resolution, is crucial for understanding the underlying processes driving lake change. To date, lake change studies in permafrost regions were based on a variety of different sources, image acquisition periods and single snapshots, and localized analysis, which hinders the comparison of different regions. Here, we present a methodology based on machine-learning based classification of robust trends of multi-spectral indices of Landsat data (TM, ETM+, OLI) and object-based lake detection, to analyze and compare the individual, local and regional lake dynamics of four different study sites (Alaska North Slope, Western Alaska, Central Yakutia, Kolyma Lowland) in the northern permafrost zone from 1999 to 2014. Regional patterns of lake area change on the Alaska North Slope (−0.69%), Western Alaska (−2.82%), and Kolyma Lowland (−0.51%) largely include increases due to thermokarst lake expansion, but more dominant lake area losses due to catastrophic lake drainage events. In contrast, Central Yakutia showed a remarkable increase in lake area of 48.48%, likely resulting from warmer and wetter climate conditions over the latter half of the study period. Within all study regions, variability in lake dynamics was associated with differences in permafrost characteristics, landscape position (i.e., upland vs. lowland), and surface geology. With the global availability of Landsat data and a consistent methodology for processing the input data derived from robust trends of multi-spectral indices, we demonstrate a transferability, scalability and consistency of lake change analysis within the northern permafrost region.

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Section: Comparison Of Sites and Prior Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Landsat-Based Trend Analysis of Lake Dynamics across Northern Permafrost Regions

et al. 2017

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“…More specifically, we investigate here reported changes in total lake area over time, based on previous published literature, and use available monthly precipitation and temperature data, along with daily discharge data records from drainage basins that overlap the areas of reported lake change observation, in order to assess concurrent change patterns. (Plug et al, 2008); 2, Tuktoyuktuk Peninsula (Marsh et al, 2009); 3, Old Crow Basin (Labrecque et al, 2009); 4, Hudson Bay Lowlands (Sannel and Kuhry, 2011); 5, Canada 50-70°N (Carroll et al, 2011); 6, Northwestern Siberia (Smith et al, 2005); 7, Rogovaya (Sannel and Kuhry, 2011); 8, Central Yakutia (Tarasenko, 2013); 9, Nadym and Pur River Basins (Karlsson et al, 2012(Karlsson et al, , 2014; 10, Tavvavouma …”

Section: Introductionmentioning

confidence: 99%

“…1), where lake drainage usually occurs over timescales of years to decades (Marsh et al, 2009). However, the main driving mechanism of changes in lake surface area is not always clear, as lake-surface area may change due to several processes, including (a) changes in precipitation (Plug et al, 2008;Tarasenko, 2013), (b) changes in evapotranspiration (Riordan et al, 2006;Labrecque et al, 2009), (c) lateral drainage caused by shoreline erosion (Marsh et al, 2009;Smith et al, 2005;Jones et al, 2011), (d) internal drainage when underlying permafrost thaws and open taliks appear (Yoshikawa and Hinzman, 2003;Smith et al, 2005;Karlsson et al, 2012Karlsson et al, , 2014, (e) ice-jam flooding (Chen et al, 2014), or (f) terrestrialization, including encroachment of floating mat vegetation and basin infilling of organic matter and sediment (Roach et al, 2011;Sannel and Kuhry, 2011).…”

Section: Introductionmentioning

confidence: 99%

Hydro-climatic and lake change patterns in Arctic permafrost and non-permafrost areas

Mård

Jaramillo

Destouni

2015

Journal of Hydrology

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s u m m a r yThis paper investigates patterns of lake-area and hydro-climatic change in Arctic river basins, and possible influence of permafrost change reflected in such patterns. A salient change pattern, emerging across all investigated basins in both permafrost and non-permafrost areas, is an opposite change direction in runoff (R) from that in precipitation (P). To explain this change contrast, an increase (decrease) in relative water-balance constrained evapotranspiration ET wb /P is required where R decreases (increases). Increasing temporal variability of daily river discharge (sdQ) is found in all basins with spatially extensive lake decrease, which also exhibit decrease in ET wb /P. Clear indication of basin-wide permafrost thaw is found in only one basin, and is possible in two more, but unlikely in the largest of the total four investigated permafrost basins.

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“…El uso de esta combinación de bandas ha demostrado ser útil para discriminar diferentes tipos de vegetación y espejos de agua (Tarasenko, 2013), en especial, porque las bandas 4 y 5 capturan la reflectancia en el infrarrojo cercano, y en este segmento del espectro las plantas tienen una alta reflectancia, lo que facilita su identificación y clasificación.…”

Section: Cuantificación Del Espejo De Agua Y Coberturas Vegetalesunclassified

Dinámica multitemporal de las coberturas y el espejo de agua en la laguna de Fúquene

Castillo¹,

Rodrı́guez

2017

Revista Mutis

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RESUMENLa laguna de Fúquene, ubicada en los valles de Ubaté y Chiquinquirá, es uno de los ecosistemas acuáticos más importantes del altiplano cundiboyacense, en Colombia. Desde hace varias décadas, la población circundante a la laguna se ha beneficiado de los servicios que ofrece este ecosistema, tales como la provisión de agua para la agricultura y los acueductos locales, pesca, turismo y transporte. Sin embargo, anteriores procesos de desecación y eutrofización de sus aguas, debidas a la carga orgánica y de nutrientes vertida de manera descontrolada sobre este cuerpo de agua, han ocasionado fuertes impactos ambientales sobre este ecosistema. Una de las principales evidencias del disturbio antrópico ha sido la progresiva reducción del espejo de agua a favor del crecimiento de diferentes tipos de coberturas vegetales acuáticas. Con el fin de analizar la dinámica de estas coberturas vegetales en el tiempo y en el espacio se emplearon herramientas de sensorización remota y sistemas de información geográfica. Mediante el análisis multitemporal de imágenes de satélite obtenidas en el periodo comprendido entre 1984 y 2003 se determinó que el área del espejo de agua presentó una disminución del 78.7 %. Espacialmente se estableció que la aparición y expansión de la vegetación acuática se ha dado desde las orillas norte y sur de la laguna. La disponibilidad restringida de imágenes de satélite no permitió establecer la tendencia actual de las áreas del espejo de agua y de las coberturas vegetales. La aplicación de herramientas de sensorización remota y sistemas de información geográfica permitió una cuantificación bastante precisa de los cambios espaciales y temporales que han presentado las coberturas de la laguna a lo largo del periodo de tiempo considerado, aun cuando la desecación de la laguna y la pérdida del espejo de agua es un fenómeno plenamente comprendido para la laguna de Fúquene.Palabras clave: disturbio antrópico, eutrofización, impacto ambiental, sensorización remota, sistemas de información geográfica. Multitemporal cover dinamics in the Fúquene lagoon ABSTRACTThe Fúquene Lagoon, located in the valleys of Ubate and Chiquinquirá, is one of the most important

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Interannual variations in the areas of thermokarst lakes in Central Yakutia

Cited by 20 publications

References 1 publication

Landsat-Based Trend Analysis of Lake Dynamics across Northern Permafrost Regions

Landsat-Based Trend Analysis of Lake Dynamics across Northern Permafrost Regions

Hydro-climatic and lake change patterns in Arctic permafrost and non-permafrost areas

Dinámica multitemporal de las coberturas y el espejo de agua en la laguna de Fúquene

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