17:15 〜 18:45
[MSD35-P05] 高空間分解能・偏光多方向観測による雲・エアロゾルモニタリングと物理過程解明
In next 20 years, the impacts of the climate change are expected to be clearly perceivable in many aspects of geophysical observations while the human activities undergo an unprecedented transformation. Developed nations will continue on the path of decarbonization whereas emerging economies in Asia and Africa will industrialize and urbanize. Such remarkable changes of human activities consequently bring a change in the emission pattern of anthropogenic greenhouse gases and aerosol particles which will have a profound impact on the public health, urban pollution, and future projection of climate. There is, therefore, a pressed need for the global assessment of the changing climatic and pollution baselines due to the fast-changing socioeconomic landscape in next 20 years.
With this context, we propose an wide-swath high-resolution multi-viewing polarimeter with following overarching objectives: (1) the quantification of aerosol particles that changes year after year in response to the climate change and socioeconomic factors, (2) the estimation of cloud-top altitude and aerosol plume height, and (3) the investigation of cloud microphysical process, including the cloud-aerosol interaction. The proposed sensor profit from the heritage of successful GCOM-C/SGLI sensor, with significant improvements in spatial resolution and accuracy of polarimetric measurements. The sensor could be launched within a constellation with the current SGLI or the follow-on of the SGLI to maximize the scientific and social implementation outcomes.
The new multi-viewing capability and improved spatial resolution enable us to quantify the aerosols over populated cities and steep mountains, as well as to measure the altitude of cloud and aerosol plumes. The wide field-of-view measurements makes the frequent global coverage possible and leads to the responsive analysis of massive aerosol emitting events such as forest fire and volcanic eruptions. In addition, the combination of multi-viewing capability and high spatial resolution results in frequent observation of cloud sides. Such a measurement provides a new dataset of 3-D distribution of cloud microphysical properties that leads to improve the existing theory of cloud microphysics.
With this context, we propose an wide-swath high-resolution multi-viewing polarimeter with following overarching objectives: (1) the quantification of aerosol particles that changes year after year in response to the climate change and socioeconomic factors, (2) the estimation of cloud-top altitude and aerosol plume height, and (3) the investigation of cloud microphysical process, including the cloud-aerosol interaction. The proposed sensor profit from the heritage of successful GCOM-C/SGLI sensor, with significant improvements in spatial resolution and accuracy of polarimetric measurements. The sensor could be launched within a constellation with the current SGLI or the follow-on of the SGLI to maximize the scientific and social implementation outcomes.
The new multi-viewing capability and improved spatial resolution enable us to quantify the aerosols over populated cities and steep mountains, as well as to measure the altitude of cloud and aerosol plumes. The wide field-of-view measurements makes the frequent global coverage possible and leads to the responsive analysis of massive aerosol emitting events such as forest fire and volcanic eruptions. In addition, the combination of multi-viewing capability and high spatial resolution results in frequent observation of cloud sides. Such a measurement provides a new dataset of 3-D distribution of cloud microphysical properties that leads to improve the existing theory of cloud microphysics.