no code implementations • 1 May 2024 • Sizhuo Li, Dimitri Gominski, Martin Brandt, Xiaoye Tong, Philippe Ciais
Image-level regression is an important task in Earth observation, where visual domain and label shifts are a core challenge hampering generalization.
no code implementations • 31 May 2023 • Paul Deroubaix, Takuro Kobashi, Léna Gurriaran, Fouzi Benkhelifa, Philippe Ciais, Katsumasa Tanaka
Furthermore, the systems potentially allow rapid CO2 emissions reduction; however, with already low-carbon electricity of France by nuclear power, CO2 abatement (0. 020 kgCO2kWh-1 reduction from 0. 063 kgCO2kWh-1) by PV + EV system can be limited, in comparison to that (0. 270 kgCO2kWh-1 reduction from 0. 352 kgCO2kWh-1) of Kyoto, also because of the Paris low insolation and high demands in higher latitude winter.
no code implementations • 22 Apr 2023 • Ibrahim Fayad, Philippe Ciais, Martin Schwartz, Jean-Pierre Wigneron, Nicolas Baghdadi, Aurélien de Truchis, Alexandre d'Aspremont, Frederic Frappart, Sassan Saatchi, Agnes Pellissier-Tanon, Hassan Bazzi
This model achieves better accuracy than previously used convolutional based approaches (ConvNets) optimized with only a continuous loss function.
no code implementations • 20 Dec 2022 • Martin Schwartz, Philippe Ciais, Catherine Ottlé, Aurelien De Truchis, Cedric Vega, Ibrahim Fayad, Martin Brandt, Rasmus Fensholt, Nicolas Baghdadi, François Morneau, David Morin, Dominique Guyon, Sylvia Dayau, Jean-Pierre Wigneron
In intensively managed forests in Europe, where forests are divided into stands of small size and may show heterogeneity within stands, a high spatial resolution (10 - 20 meters) is arguably needed to capture the differences in canopy height.
no code implementations • Environmental Research Letters 2021 • Haibo Lu, Shihua Li, Minna Ma, Vladislav Bastrikov, Xiuzhi Chen, Philippe Ciais, Yongjiu Dai, Akihiko Ito, Weimin Ju, Sebastian Lienert, Danica Lombardozzi, Xingjie Lu, Fabienne Maignan, Mahdi Nakhavali, Timothy Quine, Andreas Schindlbacher, Jun Wang, Yingping Wang, David Wårlind, Shupeng Zhang and Wenping Yuan
This study generated global SR and its components (HR and AR) fluxes, which are useful benchmarks to constrain the performance of terrestrial ecosystem models.
no code implementations • 16 Apr 2021 • Katsumasa Tanaka, Christian Azar, Olivier Boucher, Philippe Ciais, Yann Gaucher, Daniel J. A. Johansson
It has been claimed that COVID-19 public stimulus packages could be sufficient to meet the short-term energy investment needs to leverage a shift toward a pathway consistent with the 1. 5 degrees C target of the Paris Agreement.
no code implementations • 3 Mar 2021 • Zhu Liu, Zhu Deng, Philippe Ciais, Jianguang Tan, Biqing Zhu, Steven J. Davis, Robbie Andrew, Olivier Boucher, Simon Ben Arous, Pep Canadel, Xinyu Dou, Pierre Friedlingstein, Pierre Gentine, Rui Guo, Chaopeng Hong, Robert B. Jackson, Daniel M. Kammen, Piyu Ke, Corinne Le Quere, Crippa Monica, Greet Janssens-Maenhout, Glen Peters, Katsumasa Tanaka, Yilong Wang, Bo Zheng, Haiwang Zhong, Taochun Sun, Hans Joachim Schellnhuber
That even substantial world-wide lockdowns of activity led to a one-time decline in global CO$_2$ emissions of only 5. 4% in one year highlights the significant challenges for climate change mitigation that we face in the post-COVID era.
Atmospheric and Oceanic Physics General Economics Economics