Search Results - "SACHS, TORSTEN"

The impact of occasional drought periods on vegetation spread and greenhouse gas exchange in rewetted fens by Koebsch, Franziska, Gottschalk, Pia, Beyer, Florian, Wille, Christian, Jurasinski, Gerald, Sachs, Torsten

“…Peatland rewetting aims at stopping the emissions of carbon dioxide (CO ) and establishing net carbon sinks. However, in times of global warming, restoration…”
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Environmental controls on CH4 emission from polygonal tundra on the microsite scale in the Lena river delta, Siberia by SACHS, TORSTEN, GIEBELS, MICHAEL, BOIKE, JULIA, KUTZBACH, LARS

“…The carbon budgets of the atmosphere and terrestrial ecosystems are closely coupled by vertical gas exchange fluxes. Uncertainties remain with respect to high…”
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Strong geologic methane emissions from discontinuous terrestrial permafrost in the Mackenzie Delta, Canada by Kohnert, Katrin, Serafimovich, Andrei, Metzger, Stefan, Hartmann, Jörg, Sachs, Torsten

“…Arctic permafrost caps vast amounts of old, geologic methane (CH 4 ) in subsurface reservoirs. Thawing permafrost opens pathways for this CH 4 to migrate to…”
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Environmental controls on ecosystem-scale CH4 emission from polygonal tundra in the Lena River Delta, Siberia by Sachs, Torsten, Wille, Christian, Boike, Julia, Kutzbach, Lars

“…We present the first ecosystem‐scale methane flux data from a northern Siberian tundra ecosystem covering the entire snow‐free period from spring thaw until…”
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Methane emission from Siberian arctic polygonal tundra: eddy covariance measurements and modeling by WILLE, CHRISTIAN, KUTZBACH, LARS, SACHS, TORSTEN, WAGNER, DIRK, PFEIFFER, EVA-MARIA

“…Eddy covariance measurements of methane flux were carried out in an arctic tundra landscape in the central Lena River Delta at 72°N. The measurements covered…”
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Toward understanding the contribution of waterbodies to the methane emissions of a permafrost landscape on a regional scale—A case study from the Mackenzie Delta, Canada by Kohnert, Katrin, Juhls, Bennet, Muster, Sina, Antonova, Sofia, Serafimovich, Andrei, Metzger, Stefan, Hartmann, Jörg, Sachs, Torsten

“…Waterbodies in the arctic permafrost zone are considered a major source of the greenhouse gas methane (CH4) in addition to CH4 emissions from arctic wetlands…”
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Modeled Microbial Dynamics Explain the Apparent Temperature Sensitivity of Wetland Methane Emissions by Chadburn, Sarah E., Aalto, Tuula, Aurela, Mika, Baldocchi, Dennis, Biasi, Christina, Boike, Julia, Burke, Eleanor J., Comyn‐Platt, Edward, Dolman, A. Johannes, Duran‐Rojas, Carolina, Fan, Yuanchao, Friborg, Thomas, Gao, Yao, Gedney, Nicola, Göckede, Mathias, Hayman, Garry D., Holl, David, Hugelius, Gustaf, Kutzbach, Lars, Lee, Hanna, Lohila, Annalea, Parmentier, Frans‐Jan W., Sachs, Torsten, Shurpali, Narasinha J., Westermann, Sebastian

“…Methane emissions from natural wetlands tend to increase with temperature and therefore may lead to a positive feedback under future climate change. However,…”
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MERLIN: A French-German Space Lidar Mission Dedicated to Atmospheric Methane by Ehret, Gerhard, Bousquet, Philippe, Pierangelo, Clémence, Alpers, Matthias, Millet, Bruno, Abshire, James, Bovensmann, Heinrich, Burrows, John, Chevallier, Frédéric, Ciais, Philippe, Crevoisier, Cyril, Fix, Andreas, Flamant, Pierre, Frankenberg, Christian, Gibert, Fabien, Heim, Birgit, Heimann, Martin, Houweling, Sander, Hubberten, Hans, Jöckel, Patrick, Law, Kathy, Löw, Alexander, Marshall, Julia, Agusti-Panareda, Anna, Payan, Sebastien, Prigent, Catherine, Rairoux, Patrick, Sachs, Torsten, Scholze, Marko, Wirth, Martin

“…The MEthane Remote sensing Lidar missioN (MERLIN) aims at demonstrating the spaceborne active measurement of atmospheric methane, a potent greenhouse gas,…”
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A decade of remotely sensed observations highlight complex processes linked to coastal permafrost bluff erosion in the Arctic by Jones, Benjamin M, Farquharson, Louise M, Baughman, Carson A, Buzard, Richard M, Arp, Christopher D, Grosse, Guido, Bull, Diana L, Günther, Frank, Nitze, Ingmar, Urban, Frank, Kasper, Jeremy L, Frederick, Jennifer M, Thomas, Matthew, Jones, Craig, Mota, Alejandro, Dallimore, Scott, Tweedie, Craig, Maio, Christopher, Mann, Daniel H, Richmond, Bruce, Gibbs, Ann, Xiao, Ming, Sachs, Torsten, Iwahana, Go, Kanevskiy, Mikhail, Romanovsky, Vladimir E

“…Eroding permafrost coasts are likely indicators and integrators of changes in the Arctic System as they are susceptible to the combined effects of declining…”
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Towards analysis ready data of optical CubeSat images: Demonstrating a hierarchical normalization framework at a wetland site by Li, Zhan, Scheffler, Daniel, Coops, Nicholas C., Leach, Nicholas, Sachs, Torsten

“…•Processing towards analysis ready data of optical CubeSat images demonstrated.•A hierarchical normalization framework (HiNF) developed for the…”
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Post-drainage vegetation, microtopography and organic matter in Arctic drained lake basins by Wolter, Juliane, Jones, Benjamin M, Fuchs, Matthias, Breen, Amy, Bussmann, Ingeborg, Koch, Boris, Lenz, Josefine, Myers-Smith, Isla H, Sachs, Torsten, Strauss, Jens, Nitze, Ingmar, Grosse, Guido

“…Wetlands in Arctic drained lake basins (DLBs) have a high potential for carbon storage in vegetation and peat as well as for elevated greenhouse gas emissions…”
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Diel, seasonal, and inter-annual variation in carbon dioxide effluxes from lakes and reservoirs by Golub, Malgorzata, Koupaei-Abyazani, Nikaan, Vesala, Timo, Mammarella, Ivan, Ojala, Anne, Bohrer, Gil, Weyhenmeyer, Gesa A, Blanken, Peter D, Eugster, Werner, Koebsch, Franziska, Chen, Jiquan, Czajkowski, Kevin, Deshmukh, Chandrashekhar, Guérin, Frederic, Heiskanen, Jouni, Humphreys, Elyn, Jonsson, Anders, Karlsson, Jan, Kling, George, Lee, Xuhui, Liu, Heping, Lohila, Annalea, Lundin, Erik, Morin, Tim, Podgrajsek, Eva, Provenzale, Maria, Rutgersson, Anna, Sachs, Torsten, Sahlée, Erik, Serça, Dominique, Shao, Changliang, Spence, Christopher, Strachan, Ian B, Xiao, Wei, Desai, Ankur R

“…Accounting for temporal changes in carbon dioxide (CO 2 ) effluxes from freshwaters remains a challenge for global and regional carbon budgets. Here, we…”
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Predominance of methanogens over methanotrophs in rewetted fens characterized by high methane emissions by Wen, Xi, Unger, Viktoria, Jurasinski, Gerald, Koebsch, Franziska, Horn, Fabian, Rehder, Gregor, Sachs, Torsten, Zak, Dominik, Lischeid, Gunnar, Knorr, Klaus-Holger, Böttcher, Michael E., Winkel, Matthias, Bodelier, Paul L. E., Liebner, Susanne

“…The rewetting of drained peatlands alters peat geochemistry and often leads to sustained elevated methane emission. Although this methane is produced entirely…”
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Temporally dynamic carbon dioxide and methane emission factors for rewetted peatlands by Kalhori, Aram, Wille, Christian, Gottschalk, Pia, Li, Zhan, Hashemi, Josh, Kemper, Karl, Sachs, Torsten

“…Rewetting drained peatlands is recognized as a leading and effective natural solution to curb greenhouse gas emissions. However, rewetting creates novel…”
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Sulfate deprivation triggers high methane production in a disturbed and rewetted coastal peatland by Koebsch, Franziska, Winkel, Matthias, Liebner, Susanne, Liu, Bo, Westphal, Julia, Schmiedinger, Iris, Spitzy, Alejandro, Gehre, Matthias, Jurasinski, Gerald, Kohler, Stefan, Unger, Viktoria, Koch, Marian, Sachs, Torsten, Bottcher, Michael E

“…In natural coastal wetlands, high supplies of marine sulfate suppress methanogenesis. Coastal wetlands are, however, often subject to disturbance by diking and…”
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Temperature thresholds of ecosystem respiration at a global scale by Johnston, Alice S. A., Meade, Andrew, Ardö, Jonas, Arriga, Nicola, Black, Andy, Blanken, Peter D., Bonal, Damien, Brümmer, Christian, Cescatti, Alessandro, Dušek, Jiří, Graf, Alexander, Gioli, Beniamino, Goded, Ignacio, Gough, Christopher M., Ikawa, Hiroki, Jassal, Rachhpal, Kobayashi, Hideki, Magliulo, Vincenzo, Manca, Giovanni, Montagnani, Leonardo, Moyano, Fernando E., Olesen, Jørgen E., Sachs, Torsten, Shao, Changliang, Tagesson, Torbern, Wohlfahrt, Georg, Wolf, Sebastian, Woodgate, William, Varlagin, Andrej, Venditti, Chris

“…Ecosystem respiration is a major component of the global terrestrial carbon cycle and is strongly influenced by temperature. The global extent of the…”
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Latent heat exchange in the boreal and arctic biomes by Kasurinen, Ville, Alfredsen, Knut, Kolari, Pasi, Mammarella, Ivan, Alekseychik, Pavel, Rinne, Janne, Vesala, Timo, Bernier, Pierre, Boike, Julia, Langer, Moritz, Belelli Marchesini, Luca, Huissteden, Ko, Dolman, Han, Sachs, Torsten, Ohta, Takeshi, Varlagin, Andrej, Rocha, Adrian, Arain, Altaf, Oechel, Walter, Lund, Magnus, Grelle, Achim, Lindroth, Anders, Black, Andy, Aurela, Mika, Laurila, Tuomas, Lohila, Annalea, Berninger, Frank

“…In this study latent heat flux (λE) measurements made at 65 boreal and arctic eddy‐covariance (EC) sites were analyses by using the Penman–Monteith equation…”
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Corrigendum: Diel, seasonal, and inter-annual variation in carbon dioxide effluxes from lakes and reservoirs (2023 Environ. Res. Lett. 18 034046) by Golub, Malgorzata, Koupaei-Abyazani, Nikaan, Vesala, Timo, Mammarella, Ivan, Ojala, Anne, Bohrer, Gil, Weyhenmeyer, Gesa A, Blanken, Peter D, Eugster, Werner, Koebsch, Franziska, Chen, Jiquan, Czajkowski, Kevin, Deshmukh, Chandrashekhar, Guérin, Frederic, Heiskanen, Jouni, Humphreys, Elyn, Jonsson, Anders, Karlsson, Jan, Kling, George, Lee, Xuhui, Liu, Heping, Lohila, Annalea, Lundin, Erik, Morin, Tim, Podgrajsek, Eva, Provenzale, Maria, Rutgersson, Anna, Sachs, Torsten, Sahlée, Erik, Serça, Dominique, Shao, Changliang, Spence, Christopher, Strachan, Ian B, Xiao, Wei, Desai, Ankur R

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Relation between planimetric and volumetric measurements of permafrost coast erosion: a case study from Herschel Island, western Canadian Arctic by Obu, Jaroslav, Lantuit, Hugues, Fritz, Michael, Pollard, Wayne H., Sachs, Torsten, Günther, Frank

“…Ice-rich permafrost coasts often undergo rapid erosion, which results in land loss and release of considerable amounts of sediment, organic carbon and…”
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Interdisciplinary Geo‐ecological Research across Time Scales in the Northeast German Lowland Observatory (TERENO‐NE) by Heinrich, Ingo, Balanzategui, Daniel, Bens, Oliver, Blasch, Gerald, Blume, Theresa, Böttcher, Falk, Borg, Erik, Brademann, Brian, Brauer, Achim, Conrad, Christopher, Dietze, Elisabeth, Dräger, Nadine, Fiener, Peter, Gerke, Horst H., Güntner, Andreas, Heine, Iris, Helle, Gerhard, Herbrich, Marcus, Harfenmeister, Katharina, Heußner, Karl-Uwe, Hohmann, Christian, Itzerott, Sibylle, Jurasinski, Gerald, Kaiser, Knut, Kappler, Christoph, Koebsch, Franziska, Liebner, Susanne, Lischeid, Gunnar, Merz, Bruno, Missling, Klaus Dieter, Morgner, Markus, Pinkerneil, Sylvia, Plessen, Birgit, Raab, Thomas, Ruhtz, Thomas, Sachs, Torsten, Sommer, Michael, Spengler, Daniel, Stender, Vivien, Stüve, Peter, Wilken, Florian

“…Core Ideas TERENO‐NE investigates the regional impact of global change. We facilitate interdisciplinary geo‐ecological research. Our data sets comprise…”
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