Methane emissions from permafrost thaw lakes limited by lake drainage

Huissteden, J. van; Berrittella, C.; Parmentier, Frans‐Jan W.; Mi, Y.; Maximov, Trofim C.; Dolman, A. J.

doi:10.1038/nclimate1101

Cited by 162 publications

(145 citation statements)

References 24 publications

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“…Further development of drainage systems in the coastal lowlands will result in drainage events of thermokarst lakes. Van Huissteden et al (2011) highlight the importance of thermokarst lake drainage on permafrost ecosystems. Jones et al (2011) dedicate attention to thermokarst lake expansion and drainage on the Seward Peninsula, Alaska.…”

Section: Impact Of Coastal Thermo-erosion On Land-to-shelf Interactiomentioning

confidence: 99%

Short- and long-term thermo-erosion of ice-rich permafrost coasts in the Laptev Sea region

et al. 2013

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Permafrost coasts in the Arctic are susceptible to a variety of changing environmental factors all of which currently point to increasing coastal erosion rates and mass fluxes of sediment and carbon to the shallow arctic shelf seas. Rapid erosion along high yedoma coasts composed of Ice Complex permafrost deposits creates impressive coastal ice cliffs and inspired research for designing and implementing change detection studies for a long time, but continuous quantitative monitoring and a qualitative inventory of coastal thermo-erosion for large coastline segments is still lacking. Our goal is to use observations of thermo-erosion along the mainland coast of the Laptev Sea, in eastern Siberia, to understand how it depends on coastal geomorphology and the relative contributions of water level and atmospheric drivers. We compared multi-temporal sets of orthorectified satellite imagery from 1965 to 2011 for three segments of coastline ranging in length from 73 to 95 km and analyzed thermo-denudation (TD) along the cliff top and thermo-abrasion (TA) along the cliff bottom for two nested time periods: long-term rates (the past 39–43 yr) and short-term rates (the past 1–4 yr). The Normalized Difference Thermo-erosion Index (NDTI) was used as a proxy to qualitatively describe the relative proportions of TD and TA. Mean annual erosion rates at all three sites were higher in recent years (−5.3 ± 1.3 m a⁻¹) than over the long-term mean (−2.2 ± 0.1 m a⁻¹). The Mamontov Klyk coast exhibits primarily spatial variations of thermo-erosion, while intrasite-specific variations caused by local relief were strongest at the Buor Khaya coast, where the slowest long-term rates of around −0.5 ± 0.1 m a⁻¹ were observed. The Oyogos Yar coast showed continuously rapid erosion up to −6.5 ± 0.2 m a⁻¹. In general, variable characteristics of coastal thermo-erosion were observed not only between study sites and over time, but also within single coastal transects along the cliff profile. Varying intensities of cliff bottom and top erosion are leading to diverse qualities of coastal erosion that have different impacts on coastal mass fluxes. The different extents of Ice Complex permafrost degradation within our study sites turned out to influence not only the degree of coupling between TD and TA, and the magnitude of effectively eroded volumes, but also the quantity of organic carbon released to the shallow Laptev Sea from coastal erosion, which ranged on a long-term from 88 ± 21 to 800 ± 61 t per km coastline per year and will correspond to considerably higher amounts, if recently observed more rapid coastal erosion rates prove to be persistent

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Section: Impact Of Coastal Thermo-erosion On Land-to-shelf Interactiomentioning

confidence: 99%

Short- and long-term thermo-erosion of ice-rich permafrost coasts in the Laptev Sea region

et al. 2013

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“…Lenz et al, 2015). This cycle includes initiation, expansion, drainage and eventual re-initiation (Van Huissteden et al, 2011). Their lifetime e in contrast to the onset e largely depends on local factors such as geomorphology, ground-ice conditions, hydrology and groundsurface stability (Jones et al, 2011(Jones et al, , 2012Jones and Arp, 2015).…”

Section: Thermokarst and Thaw Lake Dynamicsmentioning

confidence: 99%

Holocene ice-wedge polygon development in northern Yukon permafrost peatlands (Canada)

Fritz

Wolter

Rudaya

et al. 2016

Quaternary Science Reviews

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a b s t r a c tIce-wedge polygon (IWP) peatlands in the Arctic and Subarctic are extremely vulnerable to climatic and environmental change. We present the results of a multidisciplinary paleoenvironmental study on IWPs in the northern Yukon, Canada. High-resolution laboratory analyses were carried out on a permafrost core and the overlying seasonally thawed (active) layer, from an IWP located in a drained lake basin on Herschel Island. In relation to 14 Accelerator Mass Spectrometry (AMS) radiocarbon dates spanning the last 5000 years, we report sedimentary data including grain size distribution and biogeochemical parameters (organic carbon, nitrogen, C/N ratio, d 13 C), stable water isotopes (d 18 O, dD), as well as fossil pollen, plant macrofossil and diatom assemblages. Three sediment units (SUs) correspond to the main stages of deposition (1) in a thermokarst lake (SU1: 4950 to 3950 cal yrs BP), (2) during transition from lacustrine to palustrine conditions after lake drainage (SU2: 3950 to 3120 cal yrs BP), and (3) in palustrine conditions of the IWP field that developed after drainage (SU3: 3120 cal yrs BP to 2012 CE). The lacustrine phase (pre 3950 cal yrs BP) is characterized by planktonic-benthic and pioneer diatom species indicating circumneutral waters, and very few plant macrofossils. The pollen record has captured a regional signal of relatively stable vegetation composition and climate for the lacustrine stage of the record until 3950 cal yrs BP. Palustrine conditions with benthic and acidophilic diatom species characterize the peaty shallow-water environments of the low-centered IWP. The transition from lacustrine to palustrine conditions was accompanied by acidification and rapid revegetation of the lake bottom within about 100 years. Since the palustrine phase we consider the pollen record as a local vegetation proxy dominated by the plant communities growing in the IWP. Ice-wedge cracking in water-saturated sediments started immediately after lake drainage at about 3950 cal yrs BP and led to the formation of an IWP mire. Permafrost aggradation through downward closed-system freezing of the lake talik is indicated by the stable water isotope record. The originally submerged IWP center underwent gradual drying during the past 2000 years. This study highlights the sensitivity of permafrost landscapes to climate and environmental change throughout the Holocene.

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“…The VOD parameter represents the slant-path opacity of the intervening vegetation layer to land surface microwave emissions; VOD is microwave frequency dependent and sensitive to changes in canopy biomass water content, including woody and foliar elements (Shi et al, 2008;Jones et al, 2011;Liu et al, 2011). The FW parameter is an important hydrological and biogeochemical variable (Watts et al, 2012), while largescale mapping of FW dynamics has been used for studying high-latitude ecosystems, wetlands, and carbon-cycle-related feedbacks to climate change (Van Huissteden et al, 2011;McVicar et al, 2012;Lupascu et al, 2014). Another key parameter is surface soil moisture, which governs the exchanges of water, energy, and carbon between the soil and atmosphere (Entekhabi et al, 2010); soil moisture is defined in this study as the volume of water in a given volume of soil.…”

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confidence: 99%

A global satellite environmental data record derived from AMSR-E and AMSR2 microwave Earth observations

Kimball

Jones

et al. 2017

Earth Syst. Sci. Data

145

142

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Abstract. Spaceborne microwave remote sensing is widely used to monitor global environmental changes for understanding hydrological, ecological, and climate processes. A new global land parameter data record (LPDR) was generated using similar calibrated, multifrequency brightness temperature (T b ) retrievals from the Advanced Microwave Scanning Radiometer for EOS (AMSR-E) and the Advanced Microwave Scanning Radiometer 2 (AMSR2). The resulting LPDR provides a long-term (June 2002-December 2015 global record of key environmental observations at a 25 km grid cell resolution, including surface fractional open water (FW) cover, atmosphere precipitable water vapor (PWV), daily maximum and minimum surface air temperatures (T mx and T mn ), vegetation optical depth (VOD), and surface volumetric soil moisture (VSM). Global mapping of the land parameter climatology means and seasonal variability over the full-year records from AMSR-E (2003) and AMSR2 (2013 observation periods is consistent with characteristic global climate and vegetation patterns. Quantitative comparisons with independent observations indicated favorable LPDR performance for FW (R ≥ 0.75; RMSE ≤ 0.06), PWV (R ≥ 0.91; RMSE ≤ 4.94 mm), T mx and T mn (R ≥ 0.90; RMSE ≤ 3.48 • C), and VSM (0.63 ≤ R ≤ 0.84; bias-corrected RMSE ≤ 0.06 cm 3 cm −3 ). The LPDR-derived global VOD record is also proportional to satellite-observed NDVI (GIMMS3g) seasonality (R ≥ 0.88) due to the synergy between canopy biomass structure and photosynthetic greenness. Statistical analysis shows overall LPDR consistency but with small biases between AMSR-E and AMSR2 retrievals that should be considered when evaluating long-term environmental trends. The resulting LPDR and potential updates from continuing AMSR2 operations provide for effective global monitoring of environmental parameters related to vegetation activity, terrestrial water storage, and mobility and are suitable for climate and ecosystem studies. The LPDR dataset is publicly available at

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Methane emissions from permafrost thaw lakes limited by lake drainage

Cited by 162 publications

References 24 publications

Short- and long-term thermo-erosion of ice-rich permafrost coasts in the Laptev Sea region

Short- and long-term thermo-erosion of ice-rich permafrost coasts in the Laptev Sea region

Holocene ice-wedge polygon development in northern Yukon permafrost peatlands (Canada)

A global satellite environmental data record derived from AMSR-E and AMSR2 microwave Earth observations

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