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apps Other research productkeyboard_double_arrow_right Model 2024 EnglishPublisher:Zenodo Authors: Oboh, Eugene;Oboh, Eugene;The Biofilm grazer model is an agent based model (ABM) built upon the MESA ABM framework ( https://mesa.readthedocs.io/en/stable/ ). The model helps us understand the effects of nutrient, light and grazing on the spatio-temporal development of rivernine biofilm. Instructions from the README.md will help you set up the environment and run the model.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research product2024 GermanyPublisher:Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung Authors: Lüdecke, Cornelia; Gazert, Volker;Lüdecke, Cornelia; Gazert, Volker;All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::1e26efea6735be4cde9412e89eacbcd1&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::1e26efea6735be4cde9412e89eacbcd1&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Model 2024Publisher:Zenodo Authors: Maoum, Ahmadreza;Maoum, Ahmadreza;These are the required files and the CLIMBER-X model coupeled with PDAF that was used to obtain the results that are presented in the paper "Paleoclimate Data Assimilation with CLIMBER-X: An ensemble Kalman filter for the Last Deglaciation". This paper will be published in PLOS ONE journal. For the original code of CLIMBER-X, see : (https://doi.org/10.5281/zenodo.6877358, Willeit, 2022) For PDAF source codes, see https://pdaf.awi.de/trac/wiki.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2024 GermanyPublisher:Alfred Wegener Institute Authors: Haas, Christian; Happ, Lena; Landy, Jack; Krumpen, Thomas;Haas, Christian; Happ, Lena; Landy, Jack; Krumpen, Thomas;Electronic Publicati... arrow_drop_down Electronic Publication Information CenterOther ORP type . 2024Data sources: Electronic Publication Information CenterAll Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::bb808f6ae6283dbc66779176a8087e87&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Electronic Publicati... arrow_drop_down Electronic Publication Information CenterOther ORP type . 2024Data sources: Electronic Publication Information CenterAll Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::bb808f6ae6283dbc66779176a8087e87&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euapps Other research product2024 GermanyPublisher:Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung Boike, Julia; Stünzi, Simone Maria; Gottuk, Jannika; Bornemann, Niko; Groenke, Brian;All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::5ea1eab84519edffb70c111efb8565ee&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::5ea1eab84519edffb70c111efb8565ee&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euapps Other research product2024 GermanyPublisher:Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung Authors: Dreutter, Simon;Dreutter, Simon;All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::0c08a53ce17481fb6414c23319a01069&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::0c08a53ce17481fb6414c23319a01069&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2024Publisher:Nature Funded by:EC | WET HORIZONSEC| WET HORIZONSKalhori, Aram; Wille, Christian; Pia, Gottschalk; 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 ecosystems whose emission behaviors are not adequately captured by currently used emission factors. These emission factors are applied immediately after rewetting, thus do not reflect the temporal dynamics of greenhouse gas emissions during the period wherein there is a transition to a rewetted steady-state. Here, we provide long-term data showing a mismatch between actual emissions and default emission factors and revealing the temporal patterns of annual carbon dioxide and methane fluxes in a rewetted peatland site in northeastern Germany. We show that site-level annual emissions of carbon dioxide and methane approach the IPCC default emission factors and those suggested for the German national inventory report only between 13 to 16 years after rewetting. Over the entire study period, we observed a source-to-sink transition of annual carbon dioxide fluxes with a decreasing trend of −0.36 t CO2-C ha−1 yr−1 and a decrease in annual methane emissions of −23.6 kg CH4 ha−1 yr−1. Our results indicate that emission factors should represent the temporally dynamic nature of peatlands post-rewetting and consider the effect of site characteristics to better estimate associated annual emissions. This project is supported by the WET HORIZONS project.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______2659::a5263527c67ab4928fdd7aca86299e87&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2024 GermanyPublisher:Alfred Wegener Institute Authors: Krumpen, Thomas; Buenger, H Jakob;Krumpen, Thomas; Buenger, H Jakob;Changes in Arctic sea ice thickness are the result of complex interactions of the dynamic and variable ice cover with atmosphere and ocean. The availability of satellite-based estimates of Arctic-wide sea ice thickness changes is limited to the winter months. However, in light of recent model predictions of a nearly ice-free Arctic in summer and to understand the role of sea ice for the causes and consequences of a warming climate, long-term and large-scale sea ice thickness and surface observations during the melt season are more important than ever. The AWI airborne sea ice survey program ‘IceBird Summer’ aims to close this gap by conducting regular measurements over sea ice in summer in key regions of the Arctic Ocean. The survey program comprises and continues all airborne ice thickness measurements obtained since 2001 in the central Arctic, Fram Strait and the last ice area. The objective is to ensure the long-term availability of a unique data record of direct sea ice thickness and surface state observations (deliverable of AWI research program POFIV, Topic 2.1: Warming Climates). Sea ice thickness measurements are obtained with a tethered electromagnetic sensor, the AEM-Bird. Jointly with the ice thickness measurements, optical and laser systems are operated to derive sea ice surface models and melt pond distribution.
Electronic Publicati... arrow_drop_down Electronic Publication Information CenterOther ORP type . 2024Data sources: Electronic Publication Information CenterAll Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::e039106745b846a8c4c4f8303493ad4f&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Electronic Publicati... arrow_drop_down Electronic Publication Information CenterOther ORP type . 2024Data sources: Electronic Publication Information CenterAll Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::e039106745b846a8c4c4f8303493ad4f&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Model 2024Publisher:Zenodo Authors: Rieckh, Therese;Rieckh, Therese;Contains all code and data for the GMD manuscript "Introducing ELSA v2.0: an isochronal model for ice-sheet layer tracing" ELSA: version 2.0 (https://git.app.uib.no/melt-team-bergen/elsa, tag v2.0) Yelmo: version 1.801 (https://github.com/palma-ice/yelmo, tag v1.801) with a minor alteration to the basal dragging scheme Yelmox: version 1.801 (https://github.com/palma-ice/yelmox, tag v1.801) Operation IceBridge data, processed and interpolated to a 16km x 16km grid (see https://icebridge.gsfc.nasa.gov/?page_id=732)
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For further information contact us at helpdesk@openaire.euapps Other research product2024 GermanyPublisher:Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung Authors: Krastel, Sebastian;Krastel, Sebastian;All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::b55be580810778a50538267f190e4a2f&type=result"></script>'); --> </script>
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apps Other research productkeyboard_double_arrow_right Model 2024 EnglishPublisher:Zenodo Authors: Oboh, Eugene;Oboh, Eugene;The Biofilm grazer model is an agent based model (ABM) built upon the MESA ABM framework ( https://mesa.readthedocs.io/en/stable/ ). The model helps us understand the effects of nutrient, light and grazing on the spatio-temporal development of rivernine biofilm. Instructions from the README.md will help you set up the environment and run the model.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research product2024 GermanyPublisher:Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung Authors: Lüdecke, Cornelia; Gazert, Volker;Lüdecke, Cornelia; Gazert, Volker;All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::1e26efea6735be4cde9412e89eacbcd1&type=result"></script>'); --> </script>
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Model 2024Publisher:Zenodo Authors: Maoum, Ahmadreza;Maoum, Ahmadreza;These are the required files and the CLIMBER-X model coupeled with PDAF that was used to obtain the results that are presented in the paper "Paleoclimate Data Assimilation with CLIMBER-X: An ensemble Kalman filter for the Last Deglaciation". This paper will be published in PLOS ONE journal. For the original code of CLIMBER-X, see : (https://doi.org/10.5281/zenodo.6877358, Willeit, 2022) For PDAF source codes, see https://pdaf.awi.de/trac/wiki.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2024 GermanyPublisher:Alfred Wegener Institute Authors: Haas, Christian; Happ, Lena; Landy, Jack; Krumpen, Thomas;Haas, Christian; Happ, Lena; Landy, Jack; Krumpen, Thomas;Electronic Publicati... arrow_drop_down Electronic Publication Information CenterOther ORP type . 2024Data sources: Electronic Publication Information CenterAll Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::bb808f6ae6283dbc66779176a8087e87&type=result"></script>'); --> </script>
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For further information contact us at helpdesk@openaire.euapps Other research product2024 GermanyPublisher:Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung Boike, Julia; Stünzi, Simone Maria; Gottuk, Jannika; Bornemann, Niko; Groenke, Brian;All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::5ea1eab84519edffb70c111efb8565ee&type=result"></script>'); --> </script>
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For further information contact us at helpdesk@openaire.euapps Other research product2024 GermanyPublisher:Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung Authors: Dreutter, Simon;Dreutter, Simon;All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::0c08a53ce17481fb6414c23319a01069&type=result"></script>'); --> </script>
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2024Publisher:Nature Funded by:EC | WET HORIZONSEC| WET HORIZONSKalhori, Aram; Wille, Christian; Pia, Gottschalk; 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 ecosystems whose emission behaviors are not adequately captured by currently used emission factors. These emission factors are applied immediately after rewetting, thus do not reflect the temporal dynamics of greenhouse gas emissions during the period wherein there is a transition to a rewetted steady-state. Here, we provide long-term data showing a mismatch between actual emissions and default emission factors and revealing the temporal patterns of annual carbon dioxide and methane fluxes in a rewetted peatland site in northeastern Germany. We show that site-level annual emissions of carbon dioxide and methane approach the IPCC default emission factors and those suggested for the German national inventory report only between 13 to 16 years after rewetting. Over the entire study period, we observed a source-to-sink transition of annual carbon dioxide fluxes with a decreasing trend of −0.36 t CO2-C ha−1 yr−1 and a decrease in annual methane emissions of −23.6 kg CH4 ha−1 yr−1. Our results indicate that emission factors should represent the temporally dynamic nature of peatlands post-rewetting and consider the effect of site characteristics to better estimate associated annual emissions. This project is supported by the WET HORIZONS project.
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Other ORP type 2024 GermanyPublisher:Alfred Wegener Institute Authors: Krumpen, Thomas; Buenger, H Jakob;Krumpen, Thomas; Buenger, H Jakob;Changes in Arctic sea ice thickness are the result of complex interactions of the dynamic and variable ice cover with atmosphere and ocean. The availability of satellite-based estimates of Arctic-wide sea ice thickness changes is limited to the winter months. However, in light of recent model predictions of a nearly ice-free Arctic in summer and to understand the role of sea ice for the causes and consequences of a warming climate, long-term and large-scale sea ice thickness and surface observations during the melt season are more important than ever. The AWI airborne sea ice survey program ‘IceBird Summer’ aims to close this gap by conducting regular measurements over sea ice in summer in key regions of the Arctic Ocean. The survey program comprises and continues all airborne ice thickness measurements obtained since 2001 in the central Arctic, Fram Strait and the last ice area. The objective is to ensure the long-term availability of a unique data record of direct sea ice thickness and surface state observations (deliverable of AWI research program POFIV, Topic 2.1: Warming Climates). Sea ice thickness measurements are obtained with a tethered electromagnetic sensor, the AEM-Bird. Jointly with the ice thickness measurements, optical and laser systems are operated to derive sea ice surface models and melt pond distribution.
Electronic Publicati... arrow_drop_down Electronic Publication Information CenterOther ORP type . 2024Data sources: Electronic Publication Information CenterAll Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::e039106745b846a8c4c4f8303493ad4f&type=result"></script>'); --> </script>
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For further information contact us at helpdesk@openaire.euapps Other research productkeyboard_double_arrow_right Model 2024Publisher:Zenodo Authors: Rieckh, Therese;Rieckh, Therese;Contains all code and data for the GMD manuscript "Introducing ELSA v2.0: an isochronal model for ice-sheet layer tracing" ELSA: version 2.0 (https://git.app.uib.no/melt-team-bergen/elsa, tag v2.0) Yelmo: version 1.801 (https://github.com/palma-ice/yelmo, tag v1.801) with a minor alteration to the basal dragging scheme Yelmox: version 1.801 (https://github.com/palma-ice/yelmox, tag v1.801) Operation IceBridge data, processed and interpolated to a 16km x 16km grid (see https://icebridge.gsfc.nasa.gov/?page_id=732)
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert ZENODO arrow_drop_down add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research product2024 GermanyPublisher:Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung Authors: Krastel, Sebastian;Krastel, Sebastian;All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od_______999::b55be580810778a50538267f190e4a2f&type=result"></script>'); --> </script>
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