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  • 1
    Publication Date: 2023-07-19
    Description: This dataset includes results from discharge measurements at two weirs (weir 1: 72°17'37.4N 126°09'13.1E, weir 2: 72°17'06.4N 126°11'00.2E) in the stream draining the Lucky Lake to the Lena River over the time period from 27th July, 2013 to 26th August, 2013. The weirs by Eijkelkamp are named RBC Flume 13.17.08. Both weirs were equipped with Vegapuls WL 61 radar height sensors by Vega. Vegapuls WL 61 measures in a range from 2 to 145 l s⁻¹. Accuracy of Vegapuls WL 61 is +/- 2 mm and for discharge +/- 1 to 7 %. By using the sill referenced water level (WL) in millimeter (mm) and the following equation (RBC Flume 13.17.08, Eijkelkamp): Q=0.0000004*(WL)³+0.0011*(WL)²+0.1358*WL-√WL+3.488 Discharge (Q) was calculated in liter per seconds (l s⁻¹). We converted the discharge into cubic meters per day (m³ d⁻¹).
    Keywords: aquatic carbon cycle; Arctic streams; AWI_Perma; AWI Arctic Land Expedition; DATE/TIME; Discharge; DOC flux; Event label; Latitude of event; Lena2013; Lena River Delta, Russia; Longitude of event; LuckyLake_weir1; LuckyLake_weir2; Permafrost; Permafrost Research; RU-Land_2013_Lena; Weir; WEIR
    Type: Dataset
    Format: text/tab-separated-values, 61 data points
    Location Call Number Expected Availability
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  • 2
    Publication Date: 2024-02-17
    Description: The pan-Arctic Permafrost-Region Lake-DOC version1 database contains surface water samples of lakes in the permafrost regions of Alaska (49.3 %), Canada (24.2 %), Greenland (3.2 %) and Siberia (23.3 %). It includes concentrations of dissolved organic carbon (DOC) for each of the 1,833 lakes of our synthesis dataset. The lakes of the dataset are located in permafrost regions between 59.2° and 82.5° northern latitude and were sampled between the years 1979 and 2017. We synthesised published datasets and unpublished samples from the author team. We assigned the following information to each lake using existing secondary environmental parameter datasets: - permafrost zone (Brown et al., 1997; Jorgenson et al., 2008), - ecoregion (Olson et al., 2004), - deposit type (Fulton, 1995; Nielsen, 2010; Petrov et al., 2014; Strauss et al., 2016), - ground ice content (Brown et al., 1997; Jorgenson et al., 2008), and - soil organic carbon content (Hugelius et al., 2014). The lakes cover the full range of permafrost extent from the isolated permafrost to continuous permafrost zone. They are located in the boreal forest ecoregion, in the tundra ecoregion and in the boreal-tundra transition zone. For a regionalization we subdivided the data into 13 study areas (22 sites).
    Keywords: 11B; 13B; 13-TY-01_01-2; 13-TY-02_01-2; 13-TY-03_01-2; 13-TY-04_01-2; 13-TY-05_01-2; 13-TY-06; 13-TY-07; 13-TY-08; 13-TY-09; 13-TY-10_01-2; 13-TY-11; 13-TY-12; 13-TY-13; 13-TY-14; 13-TY-15_01-2; 13-TY-16; 13-TY-17; 13-TY-18; 13-TY-19; 13-TY-20; 13-TY-21; 13-TY-22; 13-TY-23; 13-TY-24; 13-TY-25; 13-TY-26_01-2; 13-TY-27_01-2; 13-TY-28_01-2; 13-TY-29_01-2; 13-TY-30_01-2; 13-TY-31_01-2; 13-TY-32_01-2; 14B; 15B; 16B; 16-KP-01-L01_A-B; 16-KP-01-L02-A-B; 16-KP-01-L03-2; 16-KP-01-L04-2; 16-KP-01-L05; 16-KP-02-L06; 16-KP-02-L07; 16-KP-02-L08; 16-KP-02-L09; 16-KP-02-L11; 16-KP-02-L12; 16-KP-02-L13; 16-KP-02-L14; 16-KP-02-L15; 16-KP-02-L16; 16-KP-02-L18; 16-KP-02-L19-2_A-B; 16-KP-02-L20_A-B; 16-KP-02-L22-3; 16-KP-03-L10-1-3; 18B; after NCSCDv2 (Hugelius et al., 2014); AK-Land_2016_NorthwestAlaska; Alaska; Area/locality; AWI_Envi; AWI_Perma; AWI Arctic Land Expedition; BAL16-DTLB-CBL; BAL16-DTLB-pond; BAL16-UPL1-W1; BYK16_SW_01; BYK16_SW_02; BYK16_SW_03; BYK16_SW_04; BYK16_SW_06; BYK16_SW_07; BYK16_SW_08; BYK16_SW_09; BYK16_SW_10; BYK16_SW_11; BYK16_SW_12; BYK16_SW_13; BYK16_SW_14; BYK16_SW_15; BYK16_SW_20; BYK16_SW_21; BYK16_SW_22; BYK16_SW_23; BYK16_SW_24; BYK16_SW_25; BYK16_SW_26; BYK16_SW_27; BYK16_SW_28; BYK16_SW_29; BYK16_SW_30; BYK16_SW_31; BYK16_SW_32; BYK16_SW_33; BYK16_SW_34; BYK16_SW_35; BYK16_SW_36; BYK16_SW_37; BYK16_SW_38; BYK16_SW_39; BYK16_SW_40; CA-Land_2012_YukonCoast; CA-Land_2012_YukonCoast_KOM12-H20-2-1m; CA-Land_2012_YukonCoast_LH_2012; CA-Land_2012_YukonCoast_SP_H2O_1-1m; CA-Land_2013_YukonCoast; CA-Land_2013_YukonCoast_11B; CA-Land_2013_YukonCoast_13B; CA-Land_2013_YukonCoast_14B; CA-Land_2013_YukonCoast_15B; CA-Land_2013_YukonCoast_16B; CA-Land_2013_YukonCoast_18B; CA-Land_2014_YukonCoast; CA-Land_2015_YukonCoast; Campaign; Canada; Carbon, organic, dissolved; Changing Permafrost in the Arctic and its Global Effects in the 21st Century; CSP16-L-10-W1; CSP16-L-1-W1; CSP16-L-31-W1; CSP16-L-4-W1; CSP16-L-5-W1; CSP16-L-7-W1; CSP16-SAL-W1; Deposit type; DLP-Pond_14-1; DLP-Pond_14-2; DLP-Pond_14-3; DLP-Pond_14-4; DLP-Pond_14-5; DLP-Pond 14-1; DLP-Pond 14-2; DLP-Pond 14-3; DLP-Pond 14-4; DLP-Pond 14-5; Ecoregion; Event label; Ground ice content, description; HAND; Keperveem_2016; KOB16-T1-W1; KOB16-T2-W1; KOB16-T6-W1; KOB16-T6-W2; KOB16-T6-W3; KOB16-T6-W4; KOB16-T6-W5; KOB16-T7-W1; KOB16-T7-W2; KOB16-T7-W3; KOB16-T7-W4; KOB16-T7-W5; KOB16-UPL1-W1; KOB16-UPL2-W1; KOM12-H20-2-1m; KUR16_W_03; KUR16_W_04; KUR16_W_05; KUR16_W_10; KUR16_W_11; KUR16_W_13; KUR16_W_14; KUR16_W_16; KUR16_W_18; KUR16_W_19; KUR16_W_24; KUR16-W-53; LATITUDE; LD13_A_06; LD13_A_10; LD13_A_12; LD14_A_05; LD14_A_09; LD14_A_11; LD14_A_38; LD14_A_39; LD14_A_72; LD14_A_76; LD14_A_78; LD14_B_01; LD14_B_02; LD14_B_05; LD14_B_06; LD14_B_07; LD14_B_08; LD14_B_09; LD14_B_10; LD14_B_11; LD14_B_12; LD14_B_13; LD14_B_14; LD14_B_15; LD14_B_16; LD14_B_17; LD14_B_18; LD14_B_19; LD14_B_21; LD14_B_22; LD14_B_23; LD14_B_24; LD14_B_25; LD14_B_26; LD14_T_18; LD14_T_21; LD14_T_24; Lena2013; Lena2016_spring, Lena2016_summer; Lena Delta, Siberia, Russia; LH 2012; LK-001; LK-003; LK-004; LK-006; LK-007; LK-008; LK-010; LK-012; LK-013; LK-014; LK-015; LK-016; LK-017; LK-018; LK-019; LK-020; LK-025; LK-026; LK-027; LK-028; LK-029; LK-031; LK-033; LK-034; LONGITUDE; MULT; Multiple investigations; NOA16-T3-W1; NOA16-T3-W2; NOA16-T4-W1; NSP16-DMM-L1-W1; NSP16-DMM-L1-W2; NSP16-NKM-W1; NSP16-PRP-W1; NSP16-RHL-W1; NSP16-SKM-W1; NSP16-TIL-W1; NSP16-UPP-W1; NSP16-W1; NSP16-W2; NSP16-WFM-W1; NSP16-YEP-W1; NUNATARYUK; NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation; NWAlaska2016; Organic carbon, soil; PAGE21; Permafrost Research; PETA-CARB; Polar Terrestrial Environmental Systems @ AWI; Pond_Micha_Kom_Glas_3; Pond_Micha_Nun_Glas_4; Pond Micha Kom Glas 3; Pond Micha Nun Glas 4; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool; Reference/source; Region, genetic; RU-Land_2013_Lena; RU-Land_2013_Taymyr; RU-Land_2014_Lena; RU-Land_2015_Yamal; RU-Land_2015_Yamal_LK-001; RU-Land_2015_Yamal_LK-003; RU-Land_2015_Yamal_LK-004; RU-Land_2015_Yamal_LK-006; RU-Land_2015_Yamal_LK-007; RU-Land_2015_Yamal_LK-008; RU-Land_2015_Yamal_LK-010; RU-Land_2015_Yamal_LK-012; RU-Land_2015_Yamal_LK-013; RU-Land_2015_Yamal_LK-014; RU-Land_2015_Yamal_LK-015; RU-Land_2015_Yamal_LK-016; RU-Land_2015_Yamal_LK-017; RU-Land_2015_Yamal_LK-018; RU-Land_2015_Yamal_LK-019; RU-Land_2015_Yamal_LK-020; RU-Land_2015_Yamal_LK-025; RU-Land_2015_Yamal_LK-026; RU-Land_2015_Yamal_LK-027; RU-Land_2015_Yamal_LK-028; RU-Land_2015_Yamal_LK-029; RU-Land_2015_Yamal_LK-031; RU-Land_2015_Yamal_LK-033; RU-Land_2015_Yamal_LK-034; RU-Land_2016_Keperveem; RU-Land_2016_Lena; Sample ID; Sampling by hand; Sampling date; SEL16-T1-W1; SEL16-T2-L1; SEL16-T2-W1; SEL16-T2-W2; Siberia; Site; SOB14_A_16; SOB14_A_31; SOB14_A_32; SOB14_A_33; SOB16_SW_01; SOB16_SW_02; SOB16_SW_03; SOB16_SW_05; SOB16_SW_07; SOB16_SW_08; SOB16_SW_10; SOB16_SW_11; SOB16_SW_12; SOB16_SW_14; SOB16_SW_15; SOB16_SW_16; SP-14-01; SP-14-02; SP-14-03; SP-14-04; SP-14-05; SP-14-06; SP-14-07; SP-14-08; SP-14-09; SP-14-10; SP-14-11; SP-14-12; SP-14-13; SP-14-14; SP-14-15; SP H2O 1-1m; State of permafrost; Taymyr2013; Tschukotka, Sibiria, Russia; Water sampler, UWITEC; WSUWI; Yamal2015; YC15_Pond_KOM; Yukon_Coast_2012; Yukon_Coast_2013; Yukon_Coast_2014; Yukon_Coast_2015
    Type: Dataset
    Format: text/tab-separated-values, 34446 data points
    Location Call Number Expected Availability
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  • 3
    Publication Date: 2024-04-24
    Description: The provided dataset contains surface water samples from lakes and ponds, streams and inflows in the Lucky Lake catchment (lake center coordinates: 72°17'56.1N; 126°10'29.7E) in the south of Kurungnakh Island, Lena River Delta, Russia. It includes concentrations of dissolved organic carbon (DOC) as well as stable isotopes of oxygen (δ¹⁸O) and hydrogen (δD). Samples of this dataset were collected during the Russian-German LENA expeditions in July and August 2013, June to September 2014, and in July 2016. For DOC measurements, we used the Shimadzu TOC-VCPH high-temperature catalytic combustion. Stable isotopes of oxygen (δ¹⁸O) and hydrogen (δD) were measured with a Finnigan MAT Delta-S mass spectrometer at the ISOLAB Isotope Facility AWI Potsdam.
    Keywords: aquatic carbon cycle; Arctic lakes; AWI_Envi; AWI_Perma; AWI Arctic Land Expedition; Carbon, organic, dissolved; DATE/TIME; DEPTH, water; Deuterium excess; Event label; KUR16_W_13; KUR16_W_14; KUR16_W_15; KUR16_W_16; KUR16_W_23; LATITUDE; LD13_A_01; LD13_A_02; LD13_A_04; LD13_A_05; LD13_A_06; LD13_A_07; LD13_A_08; LD13_A_09; LD13_A_10; LD13_A_11; LD13_A_12; LD13_A_13; LD13_A_14; LD13_A_15; LD13_A_35; LD13_A_36; LD13_A_37; LD13_A_38; LD13_A_39; LD13_A_40; LD13_A_41; LD13_A_42; LD13_A_43; LD13_A_44; LD13_A_51; LD13_A_52; LD13_A_53; LD13_A_54; LD13_A_55; LD13_A_56; LD13_A_57; LD13_A_58; LD13_A_61; LD13_A_62; LD13_S_01; LD13_S_03; LD13_S_06; LD13_S_09; LD13_S_10; LD13_S_15; LD13_S_27; LD13_S_30; LD13_S_37; LD13_S_40; LD13_S_41; LD13_S_42; LD13_S_49; LD13_S_52; LD13_S_53; LD14_45; LD14_46; LD14_47; LD14_48; LD14_49; LD14_50; LD14_A_01; LD14_A_02; LD14_A_03; LD14_A_04; LD14_A_05; LD14_A_06; LD14_A_07; LD14_A_08; LD14_A_09; LD14_A_10; LD14_A_11; LD14_A_13; LD14_A_14; LD14_A_39; LD14_A_41; LD14_A_68; LD14_A_69; LD14_A_70; LD14_A_71; LD14_A_72; LD14_A_73; LD14_A_74; LD14_A_75; LD14_A_76; LD14_A_77; LD14_A_78; LD14_A_79; LD14_A_81; LD14_A_83; LD14_B_01; LD14_B_21; LD14_B_22; LD14_T_13; LD14_T_14; LD14_T_15; LD14_T_16; LD14_T_18; LD14_T_19; LD14_T_20; LD14_T_21; LD14_T_22; LD14_T_24; LD14_T_25; LD14_T_27; Lena2013; Lena2016_spring, Lena2016_summer; Lena Delta, Siberia, Russia; Lena River Delta, Russia; LONGITUDE; Mass spectrometer Finnigan MAT Delta-S (ISOLAB); MULT; Multiple investigations; Permafrost; Permafrost Research; PETA-CARB; Polar Terrestrial Environmental Systems @ AWI; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool; RU-Land_2013_Lena; RU-Land_2014_Lena; RU-Land_2016_Lena; Shimadzu TOC-VCPH total organic carbon analyzer SN H51304730370CS (ISOLAB); Siberia; thermokarst lakes; δ18O, standard deviation; δ18O, water; δ Deuterium, standard deviation; δ Deuterium, water
    Type: Dataset
    Format: text/tab-separated-values, 599 data points
    Location Call Number Expected Availability
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  • 4
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    European Geophysical Union
    In:  EPIC3EGU General Assembly 2020, Online, 2020-05-04-2020-05-08First Pan-Arctic Assessment of Dissolved Organic Carbon Concentration in Permafrost-Region Lakes, Vienna, European Geophysical Union
    Publication Date: 2020-06-10
    Description: Permafrost-region lakes are dynamic landscape systems and play an important role for climate change feedbacks. Lake processes such as mineralization and flocculation of DOC, one of the main carbon fraction in lakes, contribute to the global carbon cycle. These processes are in focus of climate research but studies have been limited in geographic extent. We synthesized published datasets and unpublished datasets from the author team totaling 1,691 water samples from 1,387 lakes across the Subarctic and Arctic in permafrost regions of Alaska, Canada, Siberia, and Greenland to provide first insights for linkages between DOC concentration to the basin. In our synthesis, we find regional differences in DOC concentration of permafrost-region lakes. We focussed on relations between lake DOC concentration and latitude, permafrost zones, ecoregions, lake surrounding deposit type, and ground ice classification of each lake basin. Additionally, we analysed the lake surrounding soil organic carbon content from 0-100 cm depth and 0-300 cm depth. Individual lake DOC concentrations of our dataset range from below detection limit assigned to 0 mg L-1 (North Slope, Alaska) to 1,130 mg L-1 (Yukon Flats, Alaska). We found regional median lake DOC concentrations of 18.8 mg L-1 (Greenland, n=25), 12.2 mg L-1 (Alaska, n= 1,135), 9.6 mg L-1 (Siberia, n=252), and 7.2 mg L-1 (Canada, n=279). Lakes in the isolated permafrost zone had the highest median DOC concentration compared to lakes in the sporadic, discontinuous, and continuous permafrost zones. Our synthesis shows increasing lake DOC concentration with decreasing latitude and, due to a larger availability of biomass and organic carbon, a significant relationship of lake DOC concentration and ecoregion of the lake. We found higher lake DOC concentrations in boreal permafrost sites compared to tundra sites. About 22 % of lakes in our dataset are located in regions with ice-rich syngenetic permafrost deposits (yedoma). Because yedoma contains large amounts of organic carbon, we assumed to find higher DOC concentrations in yedoma lakes compared to non-yedoma lakes. Our analysis shows a significant relationship of lake DOC concentration and surrounding deposit type but not a higher DOC concentration in yedoma lakes compared to non-yedoma lakes. Finally, we found a relationship of soil organic carbon content from 0-100 cm depth and lake DOC concentration. In contrast, a comparison of soil organic carbon content from 0-300 cm depth and lake DOC concentration shows no significant correlation. This was also found for ground-ice content and lake DOC concentration. Our dataset of lakes across the Arctic shows that the DOC concentration of a lake strongly depends on its environmental properties. This dataset will be fundamental to establish a pan-Arctic lake DOC pool for estimations of the impact of lake DOC on the global carbon cycle and further on climate change.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 5
    Publication Date: 2024-01-31
    Description: Lakes in permafrost regions are dynamiclandscape components and play an important role for climatechange feedbacks. Lake processes such as mineralizationand flocculation of dissolved organic carbon (DOC), oneof the main carbon fractions in lakes, contribute to thegreenhouse effect and are part of the global carbon cycle.These processes are in the focus of climate research, butstudies so far are limited to specific study regions. Inour synthesis, we analyzed 2167 water samples from 1833lakes across the Arctic in permafrost regions of Alaska,Canada, Greenland, and Siberia to provide first pan-Arcticinsights for linkages between DOC concentrations andthe environment. Using published data and unpublisheddatasets from the author team, we report regional DOCdifferences linked to latitude, permafrost zones, ecoregions,geology, near-surface soil organic carbon contents, andground ice classification of each lake region. The lakeDOC concentrations in our dataset range from 0 to1130 mg L−1(10.8 mg L−1median DOC concentration).Regarding the permafrost regions of our synthesis, wefound median lake DOC concentrations of 12.4 mg L−1(Siberia), 12.3 mg L−1(Alaska), 10.3 mg L−1(Greenland),and 4.5 mg L−1(Canada). Our synthesis shows a significantrelationship between lake DOC concentration and lakeecoregion. We found higher lake DOC concentrationsat boreal permafrost sites compared to tundra sites. Wefound significantly higher DOC concentrations in lakesin regions with ice-rich syngenetic permafrost deposits(yedoma) compared to non-yedoma lakes and a weak butsignificant relationship between soil organic carbon contentand lake DOC concentration as well as between ground icecontent and lake DOC. Our pan-Arctic dataset shows that theDOC concentration of a lake depends on its environmentalproperties, especially on permafrost extent and ecoregion, aswell as vegetation, which is the most important driver of lakeDOC in this study. This new dataset will be fundamental toquantify a pan-Arctic lake DOC pool for estimations of theimpact of lake DOC on the global carbon cycle and climatechange.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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  • 6
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    Frontiers Research Foundation
    In:  EPIC3Frontiers in Earth Science, Frontiers Research Foundation, 9, ISSN: 2296-6463
    Publication Date: 2024-01-23
    Description: The Arctic is rich in aquatic systems and experiences rapid warming due to climate change. The accelerated warming causes permafrost thaw and the mobilization of organic carbon. When dissolved organic carbon is mobilized, this DOC can be transported to aquatic systems and degraded in the water bodies and further downstream. Here, we analyze the influence of different landscape components on DOC concentrations and export in a small (6.45 km2) stream catchment in the Lena River Delta. The catchment includes lakes and ponds, with the flow path from Pleistocene yedoma deposits across Holocene non-yedoma deposits to the river outlet. In addition to DOC concentrations, we use radiocarbon dating of DOC as well as stable oxygen and hydrogen isotopes (δ18O and δD) to assess the origin of DOC. We find significantly higher DOC concentrations in the Pleistocene yedoma area of the catchment compared to the Holocene non-yedoma area with medians of 5 and 4.5 mg L−1 (p 〈 0.05), respectively. When yedoma thaw streams with high DOC concentration reach a large yedoma thermokarst lake, we observe an abrupt decrease in DOC concentration, which we attribute to dilution and lake processes such as mineralization. The DOC ages in the large thermokarst lake (between 3,428 and 3,637 14C y BP) can be attributed to a mixing of mobilized old yedoma and Holocene carbon. Further downstream after the large thermokarst lake, we find progressively younger DOC ages in the stream water to its mouth, paired with decreasing DOC concentrations. This process could result from dilution with leaching water from Holocene deposits and/or emission of ancient yedoma carbon to the atmosphere. Our study shows that thermokarst lakes and ponds may act as DOC filters, predominantly by diluting incoming waters of higher DOC concentrations or by re-mineralizing DOC to CO2 and CH4. Nevertheless, our results also confirm that the small catchment still contributes DOC on the order of 1.2 kg km−2 per day from a permafrost landscape with ice-rich yedoma deposits to the Lena River.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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