10:45 〜 11:00
[ACG36-07] Present Status of GCOM-W/AMSR2 and Outlook for GOSAT-GW/AMSR3
★Invited Papers
キーワード：AMSRシリーズ、GCOM-W衛星、マイクロ波放射計、GOSAT-GW衛星、全球水循環
The Global Change Observation Mission-Water (GCOM-W) satellite was launched by the Japan Aerospace Exploration Agency (JAXA) in May 2012. It carries the Advanced Microwave Scanning Radiometer 2 (AMSR2), which is a 7-band multi-frequency, dual-polarization microwave radiometer with a 2-m aperture antenna. JAXA provides the sea surface wind speed, vertically-integrated water vapor, cloud liquid water, precipitation, sea surface temperature (SST), sea ice concentration, snow depth, and soil moisture, as the AMSR2 standard product via the JAXA G-portal (https://gportal.jaxa.jp/gpr/). The GCOM-W/AMSR2 completed its 5-year designed mission life in May 2017 and has transferred to post-mission phase. At present, the satellite and sensor are very healthy and expected to continue the observation. Besides the 10-month gaps between AMSR-E and AMSR2, the AMSR series provide long-term global observation data for studies of the global water cycle, air-sea interactions, and polar environments.
JAXA is currently developing a follow-on mission, named AMSR3, which will be carried by the Global Observing SATellite for Greenhouse gases and Water cycle (GOSAT-GW). In December 2019, the GOSAT-GW/AMSR3 mission was officially approved. At present, it is expected to be launched in the Japanese Fiscal Year of 2023. AMSR3 succeeds all the frequency channels and polarization combinations of AMSR2. In addition, three high-frequency channels (165.5 GHz, 183±3 GHz and 183±7 GHz, V-pol) and 10.25-GHz channels (V- and H-pol) with improved Noise Equivalent Delta Temperature (NEDT) are added for observations of solid precipitation, humidity sounding, and high accuracy measurement of sea surface temperature. Main targets of the AMSR3 mission are producing long-term continuous data record from AMSR, AMSR-E and AMSR2 and enhancing operational utilizations of near-real time data (e.g., weather forecast including typhoon and hurricane analysis, fishery near the coasts, navigational assistance on arctic shipping route).
JAXA is currently developing a follow-on mission, named AMSR3, which will be carried by the Global Observing SATellite for Greenhouse gases and Water cycle (GOSAT-GW). In December 2019, the GOSAT-GW/AMSR3 mission was officially approved. At present, it is expected to be launched in the Japanese Fiscal Year of 2023. AMSR3 succeeds all the frequency channels and polarization combinations of AMSR2. In addition, three high-frequency channels (165.5 GHz, 183±3 GHz and 183±7 GHz, V-pol) and 10.25-GHz channels (V- and H-pol) with improved Noise Equivalent Delta Temperature (NEDT) are added for observations of solid precipitation, humidity sounding, and high accuracy measurement of sea surface temperature. Main targets of the AMSR3 mission are producing long-term continuous data record from AMSR, AMSR-E and AMSR2 and enhancing operational utilizations of near-real time data (e.g., weather forecast including typhoon and hurricane analysis, fishery near the coasts, navigational assistance on arctic shipping route).