4:15 PM - 4:30 PM
[MSD35-10] High resolution multi-angular polarimeter for the cloud and aerosol monitoring and the comprehension of physical processes
Keywords:Aerosol, Clouds, Polarization
By mid-century, 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 to improve the energy efficiency in the trajectory of decarbonization, whereas emerging economies in Asia and Africa will industrialize and urbanize. Such remarkable changes of human activities consequently result in a change in the emission distribution 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 coming decades.
In this context, we propose a wide-swath high-resolution multi-viewing polarimeter with following overarching objectives: (1) the continuation and improvement of large-scale aerosol monitoring that capture the changes 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 processes, including the cloud-aerosol interaction. The proposed sensor benefits from the coordinated measurement with the GCOM-C/SGLI or the follow-on program of it as an accompanying small satellite. The design principle inherits that of successful GCOM-C/SGLI sensor with significant improvements in spatial resolution and accuracy of polarimetric measurements.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 offers the opportunity of frequent cloud-side measurement. 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.
In this context, we propose a wide-swath high-resolution multi-viewing polarimeter with following overarching objectives: (1) the continuation and improvement of large-scale aerosol monitoring that capture the changes 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 processes, including the cloud-aerosol interaction. The proposed sensor benefits from the coordinated measurement with the GCOM-C/SGLI or the follow-on program of it as an accompanying small satellite. The design principle inherits that of successful GCOM-C/SGLI sensor with significant improvements in spatial resolution and accuracy of polarimetric measurements.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 offers the opportunity of frequent cloud-side measurement. 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.