The current status of FY-3D - wmo.int€¦ · New baby: FY-3D Launched on 15, Dec. 2017 FY-3D, ... monitoring, ice water thickness, atmospheric temperature and humidity profile, cloud

Xiang Fang National Satellite Meteorological Center,

China Meteorological Administration (NSMC/CMA)

The current status of FY-3D

OUTLINE

Overview Key instruments onboard FY-3D Products and data service In-orbit testing plan

FENGYUN LEO Satellites Overview

Polar System

Second Generation FY-3 A, B, C, D, E, F, G, R

First Generation FY-1 A, B, C, D

FengYun LEO Satellites

Expected until 2025

FY-3 C/D to E/F/G/R Transition

3 yrs 5 yrs 8 yrs Designing lifetime

FY-3 A/B

FY-3 C/D

FY-3 E/F/G/R

New baby: FY-3D Launched on 15, Dec. 2017

FY-3D, is the fourth satellite in China’s second generation polar-orbiting 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

5

FY-2E 86.5

FY-2G 105

FY-2D 123.5 FY-3D

FY-3B

FY-2F 112

FY-3C

Tansat FY-4A 104.5

FY-3A

6

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 Name

Longitude

Latitude

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

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

FY-3D payloads and products

MERSIMERSI-II continuity and Evolution

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

HIRAS Hyperspectral sounder -- comparable with CrIS & IASI

GAS: Greenhouse gases Absorption Spectrometer

• Objectives: to measure golbal CO2 and CH4 column density by using a SWIR Interferometer

• Spectral res.: 0.2 cm-1

• Spatial res.: 13km • Number of Bands: 4

Parameter Value

Field of View 130º×130º

Wavelength 140 nm~180 nm

Dynamics Scope 104

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.

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 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 30 km at nadir

Temporal Resolution 2s（day） 10s (night)

Science Targets: 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

IPM: Ionospheric Photometer

Leizhou peninsula Qinghai Lake

Good S/N Performance of FY-3D Image

The First Global Mosaic Image by FY-3D MERSI Dec. 8, 2017

10Ghz H-Pol

WMTS

GPS occultation ionosphere profile

Global navigation satellite occultation sounder FY-3D Hyperspectral greenhouse gas sounder

MWRI MWHS

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.

Products of FY-3D

FY-3C/D products comparison with FY-3A/B

Product type FY-3A/B Products FY-3C/D Products Atmosphere 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

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.

Land Products

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

Ocean Products

Sea surface temperature, sea ice monitoring, Ocean color

Sea surface wind speed

Space weather products

High-energy particle, surface potential, radiation dose

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 pre-processing 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

Application

Experiment

Space weather

Example

Atm. environment

Example

Vis. Imager payload

application example

Microwave sounder payload

application example

Assimilation application

example

Image processing

support

Thank you！