10 октября в 18:00 в 424 аудитории Физтех.Арктики пройдет лекция японского специалиста по климату Рёити Имасу на тему «Overview of Japanese satellite mission GOSAT/GOSAT-2».
Лектор — Рёити Имасу (Ryoichi Imasu), профессор Института исследований атмосферы и океана Токийского университета (The University of Tokyo), руководитель миссии по измерению концентрации парниковых газов OSAT-2.
It is now mostly common knowledge that anthropogenic emissions of greenhouse gases such as carbon dioxide are the main culprit for the global warming. In January 2009, the Japanese Greenhouse Gases Observing Satellite (GOSAT) was launched with a mission to measure the columnar and upper air concentration of greenhouse gases from space. The main sensor of the satellite is the Thermal and Near Infrared Sensor for Carbon Observation-Fourier Transform Spectrometer (TANSO-FTS). The satellite has provided scientists worldwide with high-quality observational data for more than 10 years.
The primary purpose of the mission was to reduce the posterior error in the inversion analysis of CO₂ source and sink strengths by about 50% in some subcontinental scales (several thousand square kilometers). The original purpose of the project has been accomplished and based on its results, GOSAT-2 was launched in October 2018. Its measurement accuracy has been greatly improved by reducing the noise level of the detectors, and the number of observation points has increased significantly with the introduction of new pointing technology for avoiding cloudy areas. Data analysis methods based on the calculations using chemical transport models were also improved. These techniques are applied to analyze the CO₂ emission from megacities such as Tokyo, for which the intensive targeting observations with GOSAT/GOSAT-2 have been conducted.
Лекция пройдет на английском языке. Приглашаются все желающие. Вход свободный.