FY-3/FY-4 satellite development/ application review and future plan

Transcription

1 The 4 th THORPEX-Asia science workshop&9 th ARC meeting, Oct. 30, 2012 FY-3/FY-4 satellite development/ application review and future plan Tang Shihao tangsh@cma.gov.cn Tel/Fax: National Satellite Meteorological Center, CMA 1

2 Topics 1. Overview of Chinese FengYun Meteorological Satellites Program 2. Introduction of Fengyun polar orbit satellites 3. Introduction of Fengyun geostationary orbit satellites 4. Future Plan

3 Chinese FengYun Meteorological Satellites Program Polar System Geostationary System FY 1A 1B 1C 1D FY 3A 3B 3C 3F First Generation Second Generation First Generation Second Generation FY 2A 2B 2C 2D 2E 2F FY 4A 4B 4C

4 LEO Satellites Launch date Satellite phase Life-span Vehicle FY-1A R&D 39days FY-1B R&D 158days FY-1C operation 6.5years(D ecommissi oned) CZ-4 Launched Satellites GEO Satellites FY-1D operation >9years FY-3A R&D In orbit FY-3B R&D In orbit FY-2A R&D 1year FY-2B R&D 3years FY-2C operation >5year FY-2D operation In orbit CZ FY-2E operation In orbit FY-2F operation In orbit

5 Current Satellites In-orbit FY 3A FY 1D FY 3B FY 2D 86.5 FY 2E 105 FY 2F 112 FY 2C 123.5

6 4 +1 Ground Station Distribution Data Efficiency: 12 hours up to 3 hours

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8 The Chinese meteorological satellite program is one of the components of the spacebased Global Observing System (GOS) of the World Meteorological Organization (WMO).

9 Topics 1. Overview of Chinese FengYun Meteorological Satellites Program 2. Introduction of Fengyun polar orbit satellites 3. Introduction of Fengyun geostationary orbit satellites 4. Future Plan

10 FengYun LEO. Satellites: FY 1 Instruments: 10 chl. Visible and Infrared radiometer. Space Environment Monitor Transimission: HRPT: Mbps (DB) GDPT: Mbps No. Status Launch Druation FY-1A Exp. Sept.7, months FY-1B Exp. Sept.3, months FY-1C Op. May 10, 1999 >7 years FY-1D Op. May 15, 2002 >7 years

11 FY 3, the 2nd generation of polar satellites The primary missions of the FY 3are as follows: global sounding of three dimensional thermal and moisture structures of the Earth s atmosphere, measuring cloud properties, and other key parameters, such as precipitation, ozone, etc., to support global numerical weather prediction and environmental services; global imaging of the Earth s surfaces to monitor largescale meteorological and/or hydrological disasters and the biosphere environment; establishing long term environmental datasets with important geophysical parameters for climate monitoring, global prediction, and Earth science research.

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13 ok FY-3 Constellation (FY-3A:Morning,FY-3B:Afternoon) After FY-3A, FY-3B was successfully launched on Nov. 5, 2010 FY-3B was put into use in Apr., instruments on board FY 3A/B, including: VIRR: Visible and Infra Red Radiometer MERSI: Medium Resolution Spectral Imager IRAS: Infrared Atmospheric Sounder MWTS:MicroWave Temperature Sounder MWHS: MicroWave Humidity Sounder MWRI: MicroWave Radiation Imager SBUS: Solar Backscatter Ultraviolet Sounder TOU: Total Ozone mapping Unit SIM: Solar Irritation Monitor ERM: Earth Radiation Monitor SEM: Space Environment Monitor No. Launch Orbit Status FY-3A May 27,2008 M R&D FY-3B Nov 5, 2010 A R&D FY-3C 2013 M Op. FY-3D 2015 A Op. FY-3E 2017(plan) M Op. FY-3G 2019(plan) A Op. FY-3I 2020(plan) M Op. 7

14 FY-3A/B Instruments Specification Abbreviation Instrument Full Name atmospheric sounding Microwave Imaging Optical Imaging from Km to 250m Atmospheric composition: Ozone Radiation budget for earth system VIRR IRAS MWTS MWHS MERSI SBUS TOU MWRI SIM ERM SEM Visible and InfraRed Radiometer InfraRed Atmospheric Sounder MicroWave Temperature Sounder MicroWave Humidity Sounder MEdium Resolution Spectral Imager Solar Backscatter Ultraviolet Sounder Total Ozone Unit Microwave Radiation Imager Solar Irradiation Monitor Earth Radiation Measurement Space Environment Monitor

15 风云三号卫星 : 空间分辨率从公里级提高到 250 米 5 公里分辨率 High spatial resolution 15

16 Global coverage

17 3 D vertical Sounding

18 Converage of FY-3A and FY-3B per 6 Hours Converage for NWP Data Assimilation per 6 Hours by 6 Satellites

19 Mesoscale convective clouds monitoring The convective clouds are developing at the edge of the tropical cyclone CARLOS

20 Dust monitoring in the Arabian Peninsula on 26, March 2011 by FY 3A and FY 3B

21 Since Mar. 2011,the bias correction algorithm has been embeded in the operational data processing system of NSMC. FY 3A MWTS 4 MetOp AMSU A Ch. 9

22 Assimilating FY-3A data at ECMWF(Lu Qifeng) After correcting the observing system bias, the standard deviations of first guess departures from four instruments are comparable to the counterparts from MetOp/AQUA. Figure Standard deviations of first guess departures for FY-3A and MetOp-A / Aqua equivalent instruments and channels. Statistics are derived from data for the period from 28 August to 28 September 2008: a) MWTS and AMSU-A; b) MWHS and AMSU-B ; c) IRAS and HIRS ; d) MWRI and AMSR-E.

23 .FY 3 meteorological satellite is set to become an increasingly important component of the global satellite system, supporting NWP centers worldwide,..the date quality for the MWTS instrument is now comparable to that from equivalent US and European meteorological satellites..this represents a significant milestone for the FY 3A programme and cooperation with ECMWF,.the scientific work is well documented in a series of Technical Memoranda available from ECMWF website, and s series of journal articles.

24 Assimilating FY-3A data at ECMWF(Lu Qifeng) When added to a full observing system, the impact of the FY-3A data is neutral to slightly positive. Overall the results are a very promising start to the FY-3 program. Better Worse Figure : Normalised differences in the RMS forecast error between the Full + FY3A experiment and the Full system for the 00Z forecast of 500 hpa and 200 hpa geopotential height for the NH (left) and the SH (right). Verification is against operations for the period is 10 August 1 November 2008 (93 cases), the experiments were run from 20 July to 1 November 2008.

25 100hpa 东亚 500hpa 东亚 500hpa 南半球 Provided by NMC 500hpa 北半球

26 Experiment of FY 3A/TOU total ozone product in numerical model

27 The calibrated and Geolocated FY 3A sensor data are called level one (L1) data, with full resolution that is the same as that of the instrument. It is mainly for numerical prediction model use and further product generation. The atmospheric and geophysics parameters, called level two (L2) data, are derived by using scientific algorithms based on the level one data. These L2 data are used for weather analysis, and environment and nature disaster monitoring. The 10 day, monthly, and yearly mean products are called level three (L3) data, which are mainly for climate analysis. All of the products are constructed in hierarchical data format (HDF) and are easy for users to extract and display.

28 FY-3 Operational and Experimental Products Discipline Measurement FY-3A /B Instruments Atmosphere Cloud/Fog Properties Total Water Vapor Precipitation Aerosol Properties Atmospheric Temperature and Humidity Total Ozone and Ozone Profile MERSI VIRR IRAS MWRI MWHS VIRR MERSI MWRI MWHS MWRI MERSI VIRR IRAS MWTS MWHS 41 TOU SBUS IRAS Land Ocean Cryosphere Land Cover Surface Temperature Vegetation Dynamics Fire and Flood Monitoring Surface Wetness Sea Surface Temperature Sea Surface color Sea Ice Snow Cover VIRR MERSI VIRR VIRR MERSI VIRR MERSI MWRI VIRR MWRI MERSI Radiation Budget Earth s Radiation and Solar Irradiance ERM SIM MERSI VIRR MWRI VIRR MWHS MERSI MWRI Space Environment High Energy Particles Radiation Dose SEM 30

29 FY 3 Operational Products(part) (Atmospheric and Cloud) (1/4) No. The name of product Resolution km Coverage Accuracy 1 Cloud Mask Lw resolution Granule 5%-20% 2 Cloud Top Temperature 5 km Granule K 3 Cloud Top Height 5 km Granule 50hpa 4 Cloud Optical Thickness 5 Km global 5%-20% 5 Cloud Type 5 Km global 5%-20% 6 Cloud Cover(total amount, high cloud) 5 Km, 10 Km global 5%-20% 7 Outgoing Long-wave Radiation at TOA 5 Km 50Km 17 Km global 3-8 W/ m2 8 Aerosol over Ocean 1Km 10 Km Ocean 15%-30% 9 Fog Detection 1 Km Granule RMS < Total Precipitable Water 1 Km 5 Km 50 Km 27X45 land Ocean 15%-25% 10%-20% Cloud classification

30 FY 3 Operational Products (Atmospheric and Cloud) (2/4) No. The name of product Resolution km Coverage Accuracy 11 Precipitation Rate at the ground 18X30 km global 30% 12 Atmospheric Temperature Profile hPa 13 Humidity Profile hPa 14 Geopotential Height hPa 15 Atmospheric Stability Index 50km global K 50km global 15%-25% 50km global TBD 50km global TBD 16 Total Ozone 50km 17km global 8-15% 17 Ozone Profile 200 Km global 8-15% 18 Flux at at TOA from ERM scaner 35Km Orbit/Regional/ global LW:10Wm -2 SW:30Wm Flux at at TOA from ERM non scaner 120 Orbit LW:10Wm -2 SW:30Wm -2 Precipitable Water from MWRI

31 FY 3 Operational Products (Land and Sea Surface) (3/4) No. The name of product Resolution Coverage Accuracy 1 Vegetation Index Normalized Differential Vegetation Index 2 Land Cover (Vegetation Type) 250m,1Km Global 5%-10% 250m,1 Km Global 15%-20% 3 Snow Cover 1Km,5Km Global 10%-20% 4 Land Surface Reflectivity 250m,1Km Global TBD 5 Land Surface Temperature 1,25,50X85km Global K 6 Flooding Index 50X85,25 km Global TBD 7 Global Fire Area 1km Global 5% 8 Sea Surface Temperature 1,5,50 Km Global Ocean K 9 Ocean Color/Chlorophyll 1 Km,10 Km Global Ocean 15%-20% 10 Sea-Ice cover 250m,1km Global Ocean 5%-15% Soil Moisture from MWRI Land Surface Temperature from MWRI

32 FY 3 Operational Products (Space Weather) (4/4) No. The name of product Resolution Coverage Accuracy 1 Solar Proton 20km Global 15% 2 Solar Ion 50km 50km Global 20% 3 Solar Electron 50km 50km Global 20% 4 radiant dose 50km 50km Global 20% No. The name of product Resolution Coverage Accuracy 1 Aerosol over land 5 Km,10 Km Global 15%-30% 2 Cloud water total column 18X30 km Global 20%-30% 3 4 Tropical Cyclone Intensity Estimation Wind Vector over Polar region 75km Global 10 hpa 5Km Polar circles TBD 5 Ice Water Paths Index 20km Middle and low Latitude TBD 6 Bidirectional Reflectance Distribution Function 1 Km Global 20% 7 Leaf Area Index 1 Km Global 15%-20% 8 Fraction of Photosynthesis Active Radiation (FPAR) 1 Km Global 15%-20%

33 Retrieval and validation of FY 3A/TOU total column ozone The first BUV type instrument of China, the Total Ozone Unit(TOU) onboard FY 3A polar orbiting satellite was designed to meet the increasing need of better understanding ozone changes. Daily distribution of total ozone column was retrieved from the solar ultraviolet radiation backscattered from Earth and its atmosphere in six discrete bands. Validation was made by comparison with ground based stations of total ozone network.

34 Total Ozone from FY 3/TOU and Validation TOU OMI GOME2 Validation :compared with other remote sensing products and field measurement Low value region over Tibetan Plateau

35 Product validation 北京地区 FY-3/TOU,AURA/OMI,Brewer 仪器臭氧总量观测结果对比 OMI TOU Dobson 日期 FY 3A/TOU,AURA/OMI,Dobson 臭氧总量结果对比 ( 北京地区,2008 年 7 月 16 日 2009 年 1 月 20 日 ) 臭氧总量 (DU)

36 Overlay of FY 3B precipitation product and the corresponding visible image :30 ( 台风 : 启德 )

37 NATURE Here we demonstrate that chemical ozone destruction over the Arctic in early 2011 was for the first time in the observational record comparable to that in the Antarctic ozone hole. Low Ozone Amount Area near North Polar Region 图 年 3 月 26 日北极臭氧总量分布 (FY-3A/TOU) For the first time, sufficient loss occurred to reasonably be describe as an Arctic ozone hole. 图 年 3 月 26 日北极臭氧总量分布 (AURA/OMI)

38 Ozone Profile Total Ozone from ~31 Ozone Profile at 71.11N&77.09 Provided by Hu Fuxiang

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40 FY-3B/MERSI Arctic Image

41 Temporal and Spatial Characteristics of the Arctic Ice Cover Fig. Ice Cover Days during June-Nov Fig. continuous ice-cover ratio (Cr) the duration of the ice cover divided by the total period of ice cover

42 Aerosol and Air quality Monitoring Aerosol Optical Thickness of MERSI 550nm :10(GMT) Pollution source existed in the South west region of Beijing before the Olympic game 42

43 FY-3 polar orbiting satellites Launch schedule FY-3B/PM FY-3C/AM No. Launch Orbit Status FY-3A May 27,2008 M R&D FY-3B Nov 5, 2010 A R&D FY-3C 2013 M Op. FY-3D 2015 A Op. FY-3E 2017(plan) M Op. FY-3G 2019(plan) A Op. FY-3I 2020(plan) M Op. FY-3D/PM FY-3F/ RM FY-3E/AM FY-3G/PM FY-3H/ RM FY-3I/AM Afternoon orbit Morning orbit Low inclination

44 Satellite FY-3C FY-3D FY-3E FY-3G No. Instruments M A M A Schedule MERSI( ) () () () () 2 MWTS() 3 MWHS() 4 MWRI 5 WindRAD 6 HIRAS 7 GAS 8 OMS 9 GNOS 10 ERM( ) () () 11 SIM SEM 12.2 WAI 12.3 IPM 13 IRAS 14 VIRR 15 TOU+SBUS 44

45 Topics 1. Overview of Chinese FengYun Meteorological Satellites Program 2. Introduction of Fengyun polar orbit satellites 3. Introduction of Fengyun geostationary orbit satellites 4. Future Plan

46 FY 2, the First Generation of GEO Met. Satellites FY 2A/B: 2 Experimental FY 2C/../2H: 6 Operational Payloads:VISSR, SEM VISSR, 5 channels Visible and Infrared Spin Scan Radiometer Specification of 5 channels VISSR Chan. Wavelength (μm) Data quantities Resolution VIS 0.55~ bits 1.25Km IR1 10.3~ bites 5Km IR ~ bites 5Km IR3(WV) 6.3~7.6 8bites 5Km IR4 3.5 ~4.0 10bites 5Km

47 Current Satellites In-orbit FY-2A R&D 1year FY-2B R&D 3years FY-2C operational >5year FY-2D operational In orbit CZ FY-2E operational In orbit FY-2F operational In orbit FY 3A FY 1D FY 3B FY 2D 86.5 FY 2E 105 FY 2F 112 FY 2C 123.5

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49 风云二号 F 星和 E 星对比

50 杜苏芮 台风监测

51 台风 启德 降水估计产品 2012 年 8 月 16 日 14:36 16:42( 北京时 ) 降水估计动画 (6 分钟间隔 )

52 FY-2D B: 86.5ºE FY-2E A: 105ºE Mode 1: Routine Mode Mode 2: Flood season Mode Sat. Imager Observation time services Sat. Imager Observation time Services FY-2C S- VISSR FY-2D S- VISSR xx:00 min xx:30 min Routine Routine FY- 2C FY- 2D S- VISSR S- VISSR xx:00 min xx:30 min xx:15 min xx:45 min JUN.1 AUG.31 JUN.1 AUG.31

53 风云二号双星观测使云图观测时间密度提高 4 倍! 间隔 1 小时间隔 30 分钟双星间隔 15 分钟 53

54 Calibration TBB Bias with IASI 分别用业务和 GSICS 定标系数计算 FY2 亮温, 考察其与相应匹配点处 IASI 观测值间的亮温差异 0.5K±0.5k(290K) 1K ±1 k(220k) ~3K(<220K) 样本统计平均结果 DTBB / K DTBB / K DTBB / K IR OPERATION -4-6 GSICS TBB / K IR TBB / K 图中星号为对应温度处的平均偏差,Bar 代表的是两倍标准差 IR TBB / K 2011 年 FY2E 定标亮温偏差 DTBB 随温度分布图图中星号为对应温度处的平均偏差,Bar 代表的是两倍标准差

55 21 FY2E-GSICS-9:45 21 FY2E-OPERATION 偏低 MODIS-9: K~200K

56 22 FY2E-GSICS-7:00 22 FY2E-OPERATION 偏高 MODIS-6: 台风 (18.9N,93.0E)

57 FY 2 Operational Products No. Products No. Products No. Products 1 Raw image 10 OLR 19 ISCCP dataset 2 Normalized image 11 SST 20 Heavy fog monitor 3 Projected image 12 TBB 21 Sea ice monitor 4 Mosaic image 13 Upper troposphere humidity 22 Typhoon location 5 Cloud classification 14 Cloud water profile 23 Fire spots 6 Total cloud amount 15 Precipitable water 24 Water bodies 7 AMV 16 Solar irradiance 25 Soil humidity 8 Rainfall estimation 17 Sand storm detection 9 Precipitation index 18 Snow cover

58 FY-4: China s next generation of geostationary meteorological satellite Four main payloads Interferometric Infrared Sounder Advanced Radiation Imager Lightning Mapping Imager Solar X-EUV imaging telescope (Not loaded in 1 st satellite) FY-4 Prototype S/C & Payload Configuration

59 Topics 1. Overview of Chinese FengYun Meteorological Satellites Program 2. Introduction of Fengyun polar orbit satellites 3. Introduction of Fengyun geostationary orbit satellites 4. Future Plan

60 Launch plan for Future FY Series( ) 2020) 2015FY 3D 2015FY 4A (TEST) 2015FY 3RM1 (TEST) 2016FY 2G 2017FY 3E 2014FY 2G 2013FY 3C 2012FY 2F 2017FY 4B 2019FY 3F 2020FY 3G 2019FY 4C 2019FY 3RM2 60