The current status of FY-3D Xiang Fang National Satellite Meteorological Center, China Meteorological Administration (NSMC/CMA)
OUTLINE Overview Key instruments onboard FY-3D Products and data service In-orbit testing plan
FENGYUN LEO Satellites Overview FengYun LEO Satellites Polar System FY-3 C/D to E/F/G/R Transition First Generation FY-1 A, B, C, D FY-3 C/D FY-3 E/F/G/R Second Generation FY-3 A, B, C, D, E, F, G, R FY-3 A/B Expected until 2025 3 yrs 5 yrs 8 yrs Designing lifetime
New baby: FY-3D Launched on 15, Dec. 2017 FY-3D, is the fourth satellite in China s second generation polarorbiting meteorological satellite family. FY-3D is a satellite with the largest number of spectral measurement channels (over 7000) in China, which will greatly enhance the capacity to detect the low-level atmospheric dynamic parameters, thermal parameters, GHGs and high-level atmospheric electric fields, magnetic fields and energetic particles of the earth. FY-3D will shift to operation as the primary afternoon orbit satellite and co-work with FY-3C in morning orbit.
Current FENGYUN Satellite Missions FY Program: 9 on the orbit, 6 in operation, 2 in trial operation FY-3C + FY-3D, AM+PM, global coverage 4 times per day FY-3B FY-3C Tansat FY-3D FY-2E 86.5 FY-4A 104.5 FY-2G 105 FY-2F 112 FY-2D 123.5 FY-3A 5
Observational capability of FY-3D Global data latency within 2 hours (80%) -> 1 hour Global data coverage with 2800 Km swath with per day, 250m spatial resolution in maximum Ground Station Longitud Latitude Name e Beijing Station 116.28E 40.05N Guangzhou Station 113.34E 23.16N Wulumuqi Station 87.57E 43.86N Kashi Station 75.94E 39.52N Jiamusi Station 130.36E 46.90N Kirunna Station 21.00E 68.00N Troll Station 2.50E 72.00S 6
FY-3D payloads and products 10 instruments on board FY-3D: 5 Successive instruments: MWTS-II: Microwave Temperature sounder MWHS-II: Microwave Humidity sounder MWRI: Microwave Radiation Imager GNOS: Global Navigation Occultation Sounder SEM: Space Environment Monitor 2 Improved instruments: MERSI-II:Improved from MERSI-I HiRAS: Upgraded from filter-type spectrometer IRAS 3 New Instruments: GAS: Greenhouse gases Absorption Spectrometer WAI: Wide-angle Aurora Imager IPM: Ionospheric Photometer
MERSI-2 Improvement: Cover all bands in FY- 3A/B/C MERSI Five more IR bands Cirrus cloud band 1.38um Water vapor bands In NIR and 7.2um Two IR split windows with 250m spatial resolution Higher accuracy from onboard calibration Lunar Calibration capability MERSI MERSI-II continuity and Evolution
HIRAS Hyperspectral sounder -- comparable with CrIS & IASI
GAS: Greenhouse gases Absorption Spectrometer Objectives: to measure golbal CO 2 and CH 4 column density by using a SWIR Interferometer Spectral res.: 0.2 cm -1 Spatial res.: 13km Number of Bands: 4
WAI: Wide-angle Auroral Imager --the first RS instrument to acquire aurora images from a wide spatial range of fields Parameter Value Field of View 130º 130º Wavelength 140 nm~180 nm Dynamics Scope 10 4 Sensitivity 6 conts.s -1.R -1 Spatial Resolution 10 km at nadir Temporal Resolution 2min(1 frame) Science Targets: Image the LBH emissions of the auroral oval to investigate the geomagnetic variation of the auroral oval. Obtain the global distribution of the ionospheric LBH emissions.
IPM: Ionospheric Photometer Parameter Value Field of View 3.5º 1.6º Wavelength 135.6 nm and LBH (day) 135.6 nm (night) Sensitivity 1 conts.s -1.R -1 (day) 150 conts.s -1.R -1 (night) Spatial Resolution Temporal Resolution Science Targets: 30 km at nadir 2s(day) 10s (night) to measure 135.6 nm to get total electron content of ionosphere during night times. To measure 135.6 nm and LBH to inverse O/N2 during daytimes
The First Global Mosaic Image by FY-3D MERSI Dec. 8, 2017 Good S/N Performance of FY-3D Image Leizhou peninsula Qinghai Lake
10Ghz H-Pol MWRI MWHS WMTS FY-3D Hyperspectral greenhouse gas sounder Global navigation satellite GPS occultation ionosphere profile occultation sounder
Products of FY-3D There are 80 products generated from 10 payloads of FY-3D. Among which, 52.8% are inherited products, 16.8% are new products, 30.3% are updated product. Product type FY-3A/B Products FY-3C/D Products Atmosphere Products Land Products Ocean Products Space weather products Cloud, fog, cloud abundance, cloud type, cloud phase, cloud-top temperature and height, cloud optical thickness, outgoing longwave radiation, atmospheric precipitable water, dust monitoring, cloud motion vector in polar regions, aerosol on ocean surface, aerosol on land surface, precipitation monitoring, ice water thickness, atmospheric temperature and humidity profile, cloud water content, land surface precipitation, top of atmosphere radiation, total ozone, ozone profile Global fire points, land surface reflectivity, land surface temperature, vegetation index, snow identification, leaf surface index, effective radiation for photosynthesis index, net primary productivity, land surface bi-directional albedo/reflectivity, land cover product, snow depth / snow water content, land surface humidity/ drought index / flood index Sea surface temperature, sea ice monitoring, Ocean color High-energy particle, surface potential, radiation dose FY-3C/D products comparison with FY-3A/B Ultraviolet aerosol index, GNOS atmosphere density profile, GNOS atmosphere profile, GNOS atmosphere reflectivity profile, GNOS low-level humidity profile, Atmosphere condition product FY3D adds CO2, CO, CH4, O2, etc. atmosphere constituent products. Sea surface wind speed GNOS electron density profile, aurora image projection product, oxygen and nitrogen glow product
Data service FY-D satellite data direct receiving system: CMA has constructed 27 provincial level FY-3D direct receiving stations, and provided FY-3D data preprocessing software package. Satellite data broadcasting: International users are able to access FY-3D satellite data via global data transfer protocol, such as CMACast, GTS and DBNet. Website download: users are able to download FY-3D quasi-real-time and historical data via FY satellite service website (http://www.nsmc.org.cn).
In-orbit testing plan FY3-D In-orbit testing plan 2017.12.11-2018.01.31 : Satellite platform testing 2018.02.01-2018.03.31 : Satellite payload testing 2018.04.01-2018.05.31 : Product testing and experimental applications 2018.06 : Operational Vis. Imager payload application example Microwave sounder payload application example Atm. environment Example Assimilation application example Space weather Example Application Experiment Image processing support
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