Mon, 13 Jun 2022

15:30 - 16:30
L3

Fluid dynamics on geometric rough paths and variational principles

JAMES-MICHAEL LEAHY
(Imperial College London )
Abstract

Noether’s theorem plays a fundamental role in modern physics by relating symmetries of a Lagrangian to conserved quantities of the Euler-Lagrange equations. In ideal fluid dynamics, the theorem relates the particle labeling symmetry to a Kelvin circulation law. Circulation is conserved for incompressible flows and, otherwise, is generated by advected variables through the momentum map due to a broken symmetry. We will introduce variational principles for fluid dynamics that constrain advection to be the sum of a smooth and geometric rough-in-time vector field. The corresponding rough Euler-Poincare equations satisfy a Kelvin circulation theorem and lead to a natural framework to develop parsimonious non-Markovian parameterizations of subgrid-scale dynamics.

Searching for Dark Matter from the Sun with the IceCube Detector
 Lazar, J Abbasi, R Ackermann, M Adams, J Aguilar, J Ahlers, M Ahrens, M Alispach, C Alves Junior, A Amin, N An, R Andeen, K Anderson, T Anton, G Arguelles, C Ashida, Y Axani, S Bai, X Balagopal V., A Barbano, A Barwick, S Bastian, B Basu, V Baur, S Bay, R Beatty, J Becker, K Becker Tjus, J Bellenghi, C BenZvi, S Berley, D Bernardini, E Besson, D Binder, G Bindig, D Blaufuss, E Blot, S Boddenberg, M Bontempo, F Borowka, J Boser, S Botner, O Boettcher, J Bourbeau, E Bradascio, F Braun, J Bron, S Brostean-Kaiser, J Browne, S Burgman, A Burley, R Busse, R Campana, M Carnie-Bronca, E Chen, C Chirkin, D Choi, K Clark, B Clark, K Classen, L Coleman, A Collin, G Conrad, J Coppin, P Correa, P Cowen, D Cross, R Dappen, C Dave, P DE CLERCQ, C DeLaunay, J Dembinski, H Deoskar, K De Ridder, S Desai, A Desiati, P de Vries, K de Wasseige, G De With, M DeYoung, T Dharani, S Diaz, A Diaz-Velez, J Dittmer, M Dujmovic, H Dunkman, M DuVernois, M Dvorak, E Ehrhardt, T Eller, P Engel, R Erpenbeck, H Evans, J Evenson, P Fan, K Fazely, A Fiedlschuster, S Fienberg, A Filimonov, K Finley, C Fischer, L Fox, D Franckowiak, A Friedman, E Fritz, A Furst, P Gaisser, T Gallagher, J Ganster, E Garcia, A Garrappa, S Gerhardt, L Ghadimi, A Glaser, C Glauch, T Glusenkamp, T Goldschmidt, A Gonzalez, J Goswami, S Grant, D Grégoire, T Griswold, S Gunduz, M Günther, C Haack, C Hallgren, A Halliday, R Halve, L Halzen, F Ha Minh, M Hanson, K Hardin, J Harnisch, A Haungs, A Hauser, S Hebecker, D Helbing, K Henningsen, F Hettinger, E Hickford, S Hignight, J Hill, C Hill, G Hoffman, K Hoffmann, R Hoinka, T Hokanson-Fasig, B Hoshina, K Huang, F Huber, M Huber, T Hultqvist, K Hunnefeld, M Hussain, R In, S Iovine, N Ishihara, A Jansson, M Japaridze, G Jeong, M Jones, B Kang, D Kang, W Kang, X Kappes, A Kappesser, D Karg, T Karl, M Karle, A Katz, U Kauer, M Kellermann, M Kelley, J Kheirandish, A Kin, K Kintscher, T Kiryluk, J Klein, S Koirala, R Kolanoski, H Kontrimas, T Kopke, L Kopper, C Kopper, S Koskinen, D Koundal, P Kovacevich, M Kowalski, M Kozynets, T Kun, E Neilson, N Lad, N Lagunas Gualda, C Lanfranchi, J Larson, M Lauber, F Lee, J Leonard, K Leszczynska, A Li, Y Lincetto, M Liu, Q Liubarska, M Lohfink, E Lozano Mariscal, C Lu, L Lucarelli, F Ludwig, A Luszczak, W Lyu, Y Ma, W Madsen, J Mahn, K Makino, Y Mancina, S Maris, I Maruyama, R Mase, K McElroy, T McNally, F Mead, J Meagher, K Medina, A Meier, M Meighen-Berger, S Micallef, J Mockler, D Montaruli, T Moore, R Morse, R Moulai, M Naab, R Nagai, R Naumann, U Necker, J Nguyen, L Niederhausen, H Nisa, M Nowicki, S Nygren, D Obertacke Pollmann, A Oehler, M Olivas, A O'Sullivan, E Pandya, H Pankova, D Park, N Parker, G Paudel, E Paul, L Perez de los Heros, C Peters, L Peterson, J Philippen, S Pieloth, D Pieper, S Pittermann, M Pizzuto, A Plum, M Popovych, Y Porcelli, A Prado Rodriguez, M Price, P Pries, B Przybylski, G Raab, C Raissi, A Rameez, M Rawlins, K Rea, I Rehman, A Reichherzer, P Reimann, R Renzi, G Resconi, E Reusch, S Rhode, W Richman, M Riedel, B Roberts, E Robertson, S Roellinghoff, G Rongen, M Rott, C Ruhe, T Ryckbosch, D Rysewyk Cantu, D Safa, I Saffer, J Sanchez Herrera, S Sandrock, A Sandroos, J Santander, M Sarkar, S Satalecka, K Scharf, M Schaufel, M Schieler, H Schindler, S Schlunder, P Schmidt, T Schneider, A Schneider, J Schröder, F Schumacher, L Schwefer, G Sclafani, S Seckel, D Seunarine, S Sharma, A Shefali, S Silva, M Skrzypek, B Smithers, B Snihur, R Soedingrekso, J Soldin, D Spannfellner, C Spiczak, G Spiering, C Stachurska, J Stamatikos, M Stanev, T Stein, R Stettner, J Steuer, A Stezelberger, T Sturwald, T Stuttard, T Sullivan, G Taboada, I Tenholt, F Ter-Antonyan, S Tilav, S Tischbein, F Tollefson, K Tomankova, L Tönnis, C Toscano, S Tosi, D Trettin, A Tselengidou, M Tung, C Turcati, A Turcotte, R Turley, C Twagirayezu, J Ty, B Unland Elorrieta, M Valtonen-Mattila, N Vandenbroucke, J van Eijndhoven, N Vannerom, D van Santen, J Verpoest, S Vraeghe, M Walck, C Watson, T Weaver, C Weigel, P Weindl, A Weiss, M Weldert, J Wendt, C Werthebach, J Weyrauch, M Whitehorn, N Wiebusch, C Williams, D Wolf, M Woschnagg, K Wrede, G Wulff, J Xu, X Xu, Y Yanez, J Yoshida, S Yu, S Yuan, T Zhang, Z 020 (19 Nov 2021)
Observation of Cosmic Ray Anisotropy with Nine Years of IceCube Data
 McNally, F Abbasi, R Ackermann, M Adams, J Aguado, T Aguilar, J Ahlers, M Ahrens, M Alispach, C Alves Junior, A Amin, N An, R Andeen, K Anderson, T Anton, G Arguelles, C Ashida, Y Axani, S Bai, X Balagopal V., A Barbano, A Barwick, S Bastian, B Basu, V Baur, S Bay, R Beatty, J Becker, K Becker Tjus, J Bellenghi, C BenZvi, S Berley, D Bernardini, E Besson, D Binder, G Bindig, D Blaufuss, E Blot, S Boddenberg, M Bontempo, F Borowka, J Boser, S Botner, O Boettcher, J Bourbeau, E Bradascio, F Braun, J Bron, S Brostean-Kaiser, J Browne, S Burgman, A Burley, R Busse, R Campana, M Carnie-Bronca, E Chen, C Chirkin, D Choi, K Clark, B Clark, K Classen, L Coleman, A Collin, G Conrad, J Coppin, P Correa, P Cowen, D Cross, R Dappen, C Dave, P DE CLERCQ, C DeLaunay, J Dembinski, H Deoskar, K De Ridder, S Desai, A Desiati, P de Vries, K de Wasseige, G De With, M DeYoung, T Dharani, S Diaz, A Diaz-Velez, J Dittmer, M Dujmovic, H Dunkman, M DuVernois, M Dvorak, E Ehrhardt, T Eller, P Engel, R Erpenbeck, H Evans, J Evenson, P Fan, K Fazely, A Fiedlschuster, S Fienberg, A Filimonov, K Finley, C Fischer, L Fox, D Franckowiak, A Friedman, E Fritz, A Furst, P Gaisser, T Gallagher, J Ganster, E Garcia, A Garrappa, S Gerhardt, L Ghadimi, A Glaser, C Glauch, T Glusenkamp, T Goldschmidt, A Gonzalez, J Goswami, S Grant, D Grégoire, T Griswold, S Gruchot, K Gunduz, M Günther, C Haack, C Hallgren, A Halliday, R Halve, L Halzen, F Ha Minh, M Hanson, K Hardin, J Harnisch, A Haungs, A Hauser, S Hebecker, D Helbing, K Henningsen, F Hettinger, E Hickford, S Hignight, J Hill, C Hill, G Hoffman, K Hoffmann, R Hoinka, T Hokanson-Fasig, B Hoshina, K Huang, F Huber, M Huber, T Hultqvist, K Hunnefeld, M Hussain, R In, S Iovine, N Ishihara, A Jansson, M Japaridze, G Jeong, M Jones, B Kang, D Kang, W Kang, X Kappes, A Kappesser, D Karg, T Karl, M Karle, A Katz, U Kauer, M Kellermann, M Kelley, J Kheirandish, A Kin, K Kintscher, T Kiryluk, J Klein, S Koirala, R Kolanoski, H Kontrimas, T Kopke, L Kopper, C Kopper, S Koskinen, D Koundal, P Kovacevich, M Kowalski, M Kozynets, T Kun, E Neilson, N Lad, N Lagunas Gualda, C Lanfranchi, J Larson, M Lauber, F Lazar, J Lee, J Leonard, K Leszczynska, A Li, Y Lincetto, M Liu, Q Liubarska, M Lohfink, E Lozano Mariscal, C Lu, L Lucarelli, F Ludwig, A Luszczak, W Lyu, Y Ma, W Madsen, J Mahn, K Makino, Y Mancina, S Maris, I Maruyama, R Mase, K McElroy, T Mead, J Meagher, K Medina, A Meier, M Meighen-Berger, S Micallef, J Mockler, D Montaruli, T Moore, R Morse, R Moulai, M Moy, A Naab, R Nagai, R Naumann, U Necker, J Nguyen, L Niederhausen, H Nisa, M Nowicki, S Nygren, D Obertacke Pollmann, A Oehler, M Olivas, A O'Sullivan, E Pandya, H Pankova, D Park, N Parker, G Paudel, E Paul, L Perez de los Heros, C Peters, L Peterson, J Philippen, S Pieloth, D Pieper, S Pittermann, M Pizzuto, A Plum, M Popovych, Y Porcelli, A Prado Rodriguez, M Price, P Pries, B Przybylski, G Raab, C Raissi, A Rameez, M Rawlins, K Rea, I Rehman, A Reichherzer, P Reimann, R Renzi, G Resconi, E Reusch, S Rhode, W Richman, M Riedel, B Roberts, E Robertson, S Roellinghoff, G Rongen, M Rott, C Ruhe, T Ryckbosch, D Rysewyk Cantu, D Safa, I Saffer, J Sanchez Herrera, S Sandrock, A Sandroos, J Santander, M Sarkar, S Satalecka, K Scharf, M Schaufel, M Schieler, H Schindler, S Schlunder, P Schmidt, T Schneider, A Schneider, J Schröder, F Schumacher, L Schwefer, G Sclafani, S Seckel, D Seunarine, S Sharma, A Shefali, S Silva, M Simmons, A Skrzypek, B Smithers, B Snihur, R Soedingrekso, J Soldin, D Spannfellner, C Spiczak, G Spiering, C Stachurska, J Stamatikos, M Stanev, T Stein, R Stettner, J Steuer, A Stezelberger, T Sturwald, T Stuttard, T Sullivan, G Taboada, I Tenholt, F Ter-Antonyan, S Thorpe, A Tilav, S Tischbein, F Tollefson, K Tomankova, L Tönnis, C Toscano, S Tosi, D Trettin, A Tselengidou, M Tung, C Turcati, A Turcotte, R Turley, C Twagirayezu, J Ty, B Unland Elorrieta, M Valtonen-Mattila, N Vandenbroucke, J van Eijndhoven, N Vannerom, D van Santen, J Verpoest, S Vraeghe, M Walck, C Watson, T Weaver, C Weigel, P Weindl, A Weiss, M Weldert, J Wendt, C Werthebach, J Weyrauch, M Whitehorn, N Wiebusch, C Williams, D Wolf, M Woodward, H Woschnagg, K Wrede, G Wulff, J Xu, X Xu, Y Yanez, J Yoshida, S Yu, S Yuan, T Zhang, Z 320 (24 Jul 2021)
Indirect search for dark matter in the Galactic Centre with IceCube
 Iovine, N Abbasi, R Ackermann, M Adams, J Aguilar, J Ahlers, M Ahrens, M Alispach, C Alves Junior, A Amin, N An, R Andeen, K Anderson, T Anton, G Arguelles, C Ashida, Y Axani, S Bai, X Balagopal V., A Barbano, A Barwick, S Bastian, B Basu, V Baur, S Bay, R Beatty, J Becker, K Becker Tjus, J Bellenghi, C BenZvi, S Berley, D Bernardini, E Besson, D Binder, G Bindig, D Blaufuss, E Blot, S Boddenberg, M Bontempo, F Borowka, J Boser, S Botner, O Boettcher, J Bourbeau, E Bradascio, F Braun, J Bron, S Brostean-Kaiser, J Browne, S Burgman, A Burley, R Busse, R Campana, M Carnie-Bronca, E Chen, C Chirkin, D Choi, K Clark, B Clark, K Classen, L Coleman, A Collin, G Conrad, J Coppin, P Correa, P Cowen, D Cross, R Dappen, C Dave, P DE CLERCQ, C DeLaunay, J Dembinski, H Deoskar, K De Ridder, S Desai, A Desiati, P de Vries, K de Wasseige, G De With, M DeYoung, T Dharani, S Diaz, A Diaz-Velez, J Dittmer, M Dujmovic, H Dunkman, M DuVernois, M Dvorak, E Ehrhardt, T Eller, P Engel, R Erpenbeck, H Evans, J Evenson, P Fan, K Fazely, A Fiedlschuster, S Fienberg, A Filimonov, K Finley, C Fischer, L Fox, D Franckowiak, A Friedman, E Fritz, A Furst, P Gaisser, T Gallagher, J Ganster, E Garcia, A Garrappa, S Gerhardt, L Ghadimi, A Glaser, C Glauch, T Glusenkamp, T Goldschmidt, A Gonzalez, J Goswami, S Grant, D Grégoire, T Griswold, S Gunduz, M Günther, C Haack, C Hallgren, A Halliday, R Halve, L Halzen, F Ha Minh, M Hanson, K Hardin, J Harnisch, A Haungs, A Hauser, S Hebecker, D Helbing, K Henningsen, F Hettinger, E Hickford, S Hignight, J Hill, C Hill, G Hoffman, K Hoffmann, R Hoinka, T Hokanson-Fasig, B Hoshina, K Huang, F Huber, M Huber, T Hultqvist, K Hunnefeld, M Hussain, R In, S Ishihara, A Jansson, M Japaridze, G Jeong, M Jones, B Kang, D Kang, W Kang, X Kappes, A Kappesser, D Karg, T Karl, M Karle, A Katz, U Kauer, M Kellermann, M Kelley, J Kheirandish, A Kin, K Kintscher, T Kiryluk, J Klein, S Koirala, R Kolanoski, H Kontrimas, T Kopke, L Kopper, C Kopper, S Koskinen, D Koundal, P Kovacevich, M Kowalski, M Kozynets, T Kun, E Neilson, N Lad, N Lagunas Gualda, C Lanfranchi, J Larson, M Lauber, F Lazar, J Lee, J Leonard, K Leszczynska, A Li, Y Lincetto, M Liu, Q Liubarska, M Lohfink, E Lozano Mariscal, C Lu, L Lucarelli, F Ludwig, A Luszczak, W Lyu, Y Ma, W Madsen, J Mahn, K Makino, Y Mancina, S Maris, I Maruyama, R Mase, K McElroy, T McNally, F Mead, J Meagher, K Medina, A Meier, M Meighen-Berger, S Micallef, J Mockler, D Montaruli, T Moore, R Morse, R Moulai, M Naab, R Nagai, R Naumann, U Necker, J Nguyen, L Niederhausen, H Nisa, M Nowicki, S Nygren, D Obertacke Pollmann, A Oehler, M Olivas, A O'Sullivan, E Pandya, H Pankova, D Park, N Parker, G Paudel, E Paul, L Perez de los Heros, C Peters, L Peterson, J Philippen, S Pieloth, D Pieper, S Pittermann, M Pizzuto, A Plum, M Popovych, Y Porcelli, A Prado Rodriguez, M Price, P Pries, B Przybylski, G Raab, C Raissi, A Rameez, M Rawlins, K Rea, I Rehman, A Reichherzer, P Reimann, R Renzi, G Resconi, E Reusch, S Rhode, W Richman, M Riedel, B Roberts, E Robertson, S Roellinghoff, G Rongen, M Rott, C Ruhe, T Ryckbosch, D Rysewyk Cantu, D Safa, I Saffer, J Sanchez Herrera, S Sandrock, A Sandroos, J Santander, M Sarkar, S Satalecka, K Scharf, M Schaufel, M Schieler, H Schindler, S Schlunder, P Schmidt, T Schneider, A Schneider, J Schröder, F Schumacher, L Schwefer, G Sclafani, S Seckel, D Seunarine, S Sharma, A Shefali, S Silva, M Skrzypek, B Smithers, B Snihur, R Soedingrekso, J Soldin, D Spannfellner, C Spiczak, G Spiering, C Stachurska, J Stamatikos, M Stanev, T Stein, R Stettner, J Steuer, A Stezelberger, T Sturwald, T Stuttard, T Sullivan, G Taboada, I Tenholt, F Ter-Antonyan, S Tilav, S Tischbein, F Tollefson, K Tomankova, L Tönnis, C Toscano, S Tosi, D Trettin, A Tselengidou, M Tung, C Turcati, A Turcotte, R Turley, C Twagirayezu, J Ty, B Unland Elorrieta, M Valtonen-Mattila, N Vandenbroucke, J van Eijndhoven, N Vannerom, D van Santen, J Verpoest, S Vraeghe, M Walck, C Watson, T Weaver, C Weigel, P Weindl, A Weiss, M Weldert, J Wendt, C Werthebach, J Weyrauch, M Whitehorn, N Wiebusch, C Williams, D Wolf, M Woschnagg, K Wrede, G Wulff, J Xu, X Xu, Y Yanez, J Yoshida, S Yu, S Yuan, T Zhang, Z 524 (28 Jul 2021)
Searching for High-Energy Neutrinos from Ultra-Luminous Infrared Galaxies with IceCube
 Correa, P Abbasi, R Ackermann, M Adams, J Aguilar, J Ahlers, M Ahrens, M Alispach, C Alves Junior, A Amin, N An, R Andeen, K Anderson, T Anton, G Arguelles, C Ashida, Y Axani, S Bai, X Balagopal V., A Barbano, A Barwick, S Bastian, B Basu, V Baur, S Bay, R Beatty, J Becker, K Becker Tjus, J Bellenghi, C BenZvi, S Berley, D Bernardini, E Besson, D Binder, G Bindig, D Blaufuss, E Blot, S Boddenberg, M Bontempo, F Borowka, J Boser, S Botner, O Boettcher, J Bourbeau, E Bradascio, F Braun, J Brinson, B Bron, S Brostean-Kaiser, J Browne, S Burgman, A Burley, R Busse, R Campana, M Carnie-Bronca, E Chen, C Chen, Z Chirkin, D Choi, K Clark, B Clark, K Classen, L Coleman, A Collin, G Conrad, J Coppin, P Cowen, D Cross, R Dappen, C Dave, P DE CLERCQ, C DeLaunay, J Delgado Lopez, D Dembinski, H Deoskar, K Desai, A Desiati, P de Vries, K de Wasseige, G De With, M DeYoung, T Diaz, A Diaz-Velez, J Dittmer, M Dujmovic, H Dunkman, M DuVernois, M Dvorak, E Ehrhardt, T Eller, P Engel, R Erpenbeck, H Evans, J Evenson, P Fan, K Fazely, A Feigl, N Fiedlschuster, S Fienberg, A Filimonov, K Finley, C Fischer, L Fox, D Franckowiak, A Friedman, E Fritz, A Furst, P Gaisser, T Gallagher, J Ganster, E Garcia, A Garrappa, S Gerhardt, L Ghadimi, A Glaser, C Glauch, T Glusenkamp, T Gonzalez, J Goswami, S Grant, D Grégoire, T Griswold, S Günther, C Haack, C Hallgren, A Halliday, R Halve, L Halzen, F Ha Minh, M Hanson, K Hardin, J Harnisch, A Haungs, A Hebecker, D Helbing, K Henningsen, F Hettinger, E Hickford, S Hignight, J Hill, C Hill, G Hoffman, K Hoffmann, R Hoinka, T Hokanson-Fasig, B Hoshina, K Huang, F Huber, M Huber, T Hultqvist, K Hunnefeld, M Hussain, R In, S Iovine, N Ishihara, A Jansson, M Japaridze, G Jeong, M Jin, M Jones, B Kang, D Kang, W Kang, X Kappes, A Kappesser, D Karg, T Karl, M Karle, A Katz, U Kauer, M Kellermann, M Kelley, J Kheirandish, A Kin, K Kintscher, T Kiryluk, J Klein, S Koirala, R Kolanoski, H Kontrimas, T Kopke, L Kopper, C Kopper, S Koskinen, D Koundal, P Kovacevich, M Kowalski, M Kozynets, T Kun, E Neilson, N Lad, N Lagunas Gualda, C Lanfranchi, J Larson, M Lauber, F Lazar, J Lee, J Leonard, K Leszczynska, A Li, Y Lincetto, M Liu, Q Liubarska, M Lohfink, E Lozano Mariscal, C Lu, L Lucarelli, F Ludwig, A Luszczak, W Lyu, Y Ma, W Madsen, J Mahn, K Makino, Y Mancina, S Maris, I Maruyama, R Mase, K McElroy, T McNally, F Mead, J Meagher, K Mechbal, S Medina, A Meier, M Meighen-Berger, S Micallef, J Mockler, D Montaruli, T Moore, R Morse, R Moulai, M Naab, R Nagai, R Naumann, U Necker, J Nguyen, L Niederhausen, H Nisa, M Nowicki, S Obertacke Pollmann, A Oehler, M Oeyen, B Olivas, A O'Sullivan, E Pandya, H Pankova, D Park, N Parker, G Paudel, E Paul, L Perez de los Heros, C Peters, L Peterson, J Philippen, S Pieloth, D Pieper, S Pittermann, M Pizzuto, A Plum, M Popovych, Y Porcelli, A Prado Rodriguez, M Price, P Pries, B Przybylski, G Raab, C Raissi, A Rameez, M Rawlins, K Rea, I Rehman, A Reichherzer, P Reimann, R Renzi, G Resconi, E Reusch, S Rhode, W Richman, M Riedel, B Roberts, E Robertson, S Roellinghoff, G Rongen, M Rott, C Ruhe, T Ryckbosch, D Rysewyk Cantu, D Safa, I Saffer, J Sanchez Herrera, S Sandrock, A Sandroos, J Santander, M Sarkar, S Satalecka, K Schaufel, M Schieler, H Schindler, S Schlunder, P Schmidt, T Schneider, A Schneider, J Schröder, F Schumacher, L Schwefer, G Sclafani, S Seckel, D Seunarine, S Sharma, A Shefali, S Silva, M Skrzypek, B Smithers, B Snihur, R Soedingrekso, J Soldin, D Spannfellner, C Spiczak, G Spiering, C Stachurska, J Stamatikos, M Stanev, T Stein, R Stettner, J Steuer, A Stezelberger, T Sturwald, T Stuttard, T Sullivan, G Taboada, I Ter-Antonyan, S Tilav, S Tischbein, F Tollefson, K Tönnis, C Toscano, S Tosi, D Trettin, A Tselengidou, M Tung, C Turcati, A Turcotte, R Turley, C Twagirayezu, J Ty, B Unland Elorrieta, M Valtonen-Mattila, N Vandenbroucke, J van Eijndhoven, N Vannerom, D van Santen, J Verpoest, S Walck, C Watson, T Weaver, C Weigel, P Weindl, A Weiss, M Weldert, J Wendt, C Werthebach, J Weyrauch, M Whitehorn, N Wiebusch, C Williams, D Wolf, M Woschnagg, K Wrede, G Wulff, J Xu, X Yanez, J Yoshida, S Yu, S Yuan, T Zhang, Z Zhelnin, P 092 (10 Feb 2022)
Observation of Cosmic Ray Anisotropy with Nine Years of IceCube Data
 McNally, F Abbasi, R Desiati, P Vélez, J Aguado, T Gruchot, K Moy, A Simmons, A Thorpe, A Woodward, H (23 Jul 2021) http://arxiv.org/abs/2107.11454v1
Fri, 17 Jun 2022

14:00 - 15:00
L4

Cancelled

Fri, 20 May 2022

14:00 - 15:00
L4

Multiscale Image Based Modelling of Plant-Soil Interaction

Tiina Roose
(University of Southampton)
Abstract

We rely on soil to support the crops on which we depend. Less obviously we also rely on soil for a host of 'free services' from which we benefit. For example, soil buffers the hydrological system greatly reducing the risk of flooding after heavy rain; soil contains very large quantities of carbon, which would otherwise be released into the atmosphere where it would contribute to climate change. Given its importance it is not surprising that soil, especially its interaction with plant roots, has been a focus of many researchers. However the complex and opaque nature of soil has always made it a difficult medium to study. 

In this talk I will show how we can build a state of the art image based model of the physical and chemical properties of soil and soil-root interactions, i.e., a quantitative, model of the rhizosphere based on fundamental scientific laws.
This will be realised by a combination of innovative, data rich fusion of structural and chemical imaging methods, integration of experimental efforts to both support and challenge modelling capabilities at the scale of underpinning bio-physical processes, and application of mathematically sound homogenisation/scale-up techniques to translate knowledge from rhizosphere to field scale. The specific science questions I will address with these techniques are: (1) how does the soil around the root, the rhizosphere, function and influence the soil ecosystems at multiple scales, (2) what is the role of root- soil interface micro morphology on plant nutrient uptake, (3) what is the effect of plant exuded mucilage on the soil morphology, mechanics and resulting field and ecosystem scale soil function and (4) how to translate this knowledge from the single root scale to root system, field and ecosystem scale in order to predict how the climate change, different soil management strategies and plant breeding will influence the soil fertility. 

Fri, 27 May 2022

10:00 - 11:00
L4

Inference of risk-neutral joint-distributions in commodity markets using neural-networks

Andy Ho, Vincent Guffens
(Macquarie Group(1585))
Abstract

The questions we would like to answer are as follows:

  1. Given three distributions pdf1, pdf2 and pdf-so, is it always possible to find a joint-distribution consistent with those 3 one-dimensional distributions?
  2. Assuming that we are in a situation where (1) holds, can we find a nonparametric joint-distribution consistent with the 3 given one-dimensional distributions?
  3. If (2) leads to an under-determined problem, can we find a joint-distribution that is “as close as possible” to the historical joint distribution?
  4. Can we achieve (3) with a neural network?
  5. If we observe the marginal and spread distributions for multiple maturities T, can we specify the evolution of pdf(T), possibly using neural differential equations?
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