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Satellite Data Exchange: Benefits and Importance to Numerical Weather Prediction and Climate Change Study. Xiaolei Zou ( 邹晓蕾 ). Department of Earth, Ocean and Atmospheric Sciences, Florida State University, USA. The Fifth China - U.S. Roundtable on Scientific Data Cooperation

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Satellite Data Exchange: Benefits and Importance to Numerical Weather Prediction and Climate Change Study

Xiaolei Zou (邹晓蕾)

  • Department of Earth, Ocean and Atmospheric Sciences,

  • Florida State University, USA

The Fifth China - U.S. Roundtable on Scientific Data Cooperation

Beijing, China, 27- 28 October, 2011


Outline

Outline

  • A brief introduction

  • Science highlights

  • Satellite Data Exchange

  • Current status

  • Recent progress


Data Numerical Weather Prediction and Climate Change Study

Assimilation

Satellite

Data

  • Improve NWP

  • Generate Reanalysis


Data Assimilation Numerical Weather Prediction and Climate Change Studyfor Reanalysis

Cycling(15-50 years)

Model

Forecast

Background

Analysis

……

Observations in

6h assimilation window

Observations in

6h assimilation window

Observations in

6h assimilation window

Observations in

6h assimilation window

Observations in

6h assimilation window

Observations in

6h assimilation window

Background

Analysis

Data Assimilation

Observations


Data Assimilation Numerical Weather Prediction and Climate Change Studyin NWP

Cycling

Model Forecast

……

Observations in

6h assimilation window

Observations in

6h assimilation window

Observations in

6h assimilation window

Medium Range:5-9day

Short-Range: 1-36 hours


Data Assimilation Numerical Weather Prediction and Climate Change Study

Model Space

Observation Space

Observation

Operator

Observations

Background

Field

Initial Guess

Background Error Covariance

Observation Error Covariance

Model Error Covariance

Analysis

(Solution)


FY-3 Numerical Weather Prediction and Climate Change Study

New Era

of Meteorological Satellite in China


Chinese Meteorological Satellites Numerical Weather Prediction and Climate Change Study

First Generation

First Generation

FY-2A: 06/10/1997

FY-2B: 06/25/2000

FY-2C: 10/18/2004

FY-2D: 12/08/2006

FY-1A: 09/07/1988

FY-1B: 09/03/1990

FY-1C: 05/10/1999

FY-1D: 05/15/2002

Geostationary

Polar-Orbiting

Second Generation

Second Generation

FY-3A: 05/27/2008

FY-3B: 11/05/2010

8 more: 2012-2020

FY-4: 2013-2020

Total 7


11 Sensors Onboard FY-3 Numerical Weather Prediction and Climate Change Study

  • 可见光和红外扫描辐射计

  • 中分辨率光谱成像仪

  • 红外分光计

  • 微波温度计

  • 微波湿度计

  • 微波成像仪

  • 紫外臭氧垂直探测仪

  • 紫外臭氧重量探测仪

  • 地球辐射监测仪

  • 太阳辐射监测仪

  • 空间环境监测仪


11 Sensors Onboard FY-3 Numerical Weather Prediction and Climate Change Study

  • Visible and InfRared Radiometer (VIRR)

  • MEdium ReSolution Imager (MERSI)

  • InfRared Atmospheric Sounder (IRAS)

  • MicroWave Temperature Sounder (MWTS)

  • MicroWave Humidity Sounder (MWHS)

  • MicroWave Radiation Imager (MWRI)

  • Solar Backscatter Ultraviolet Sounder (SBUS)

  • Total Ozone Mapping Unit (TOU)

  • Earth Radiation Measurer (ERM)

  • Solar Irradiation Monitor (SIM)

  • Space Environment Monitor (SEM)


11 Sensors Onboard FY-3 Numerical Weather Prediction and Climate Change Study

TOU

VIRR

MWHS

ERM

MERSI

MWRI

IRAS

SIM

MWTS

SBUS

SEM


Instrument Parameters Numerical Weather Prediction and Climate Change Study


2012FY-3PM1 Numerical Weather Prediction and Climate Change Study

2013FY-4A (TEST)

2012FY-2G

2011FY-3AM1

2010FY-2F

2013FY-3RM (TEST)

2009FY-3B (TEST)

2014FY-3AM2

2008FY-2E

2015FY-4EAST1

2006FY-2D

2015FY-3PM2

2008FY-3A

2007FY-3A (TEST)

2016FY-4WEST1

2017FY-4MS (TEST)

2020

FY-4MS

2018FY-3PM3

2019FY-3RM2

2016FY-3RM1

2017FY-3AM3

2020

FY-4WEST2

2019

FY-4EAST2

FY-3 Strategic Plan (2006-2020)

2013FY-4A

2012FY-3PM1

2011FY-3AM1

2013FY-3RM

2010FY-3B

  • Global

  • All weather

  • 3 Dimension

  • Quantitative

  • Multi-channels

2014FY-3AM2

2015FY-4EAST1

2015FY-3PM2

2008FY-3A

2016FY-4WEST1

2017FY-4MS

2020FY-4MS

2019FY-3RM2

2016FY-3RM1

2017FY-3AM3

2018FY-3PM3

2020FY-4WEST2

2019FY-4EAST2

From Zhang Peng


Usa european and chinese polar orbiting satellites

USA, European and Chinese Polar-Orbiting Satellites Numerical Weather Prediction and Climate Change Study

morning

afternoon

morning

afternoon


Launch date october 28 2011

NPP Launch News Numerical Weather Prediction and Climate Change Study

Friday morning's liftoff from Vandenberg Air Force Base, Calif.

Launch Date: October 28, 2011

For a lot of exciting information, please go to:

NASA TV (one of cable Channels) or

NASA's NPP mission website at: http://www.nasa.gov/npp

NPP --- The NPOESS Preparatory Project

NPOESS --- The National Polar-orbiting Operational Environmental Satellite System


秦正 Numerical Weather Prediction and Climate Change Study坤

Decadal Climate Trend

Qin, Z., X. Zou,

and F. Weng, 2011: Comparison between linear and nonlinear trends in NOAA-15 AMSU-A brightness temperatures during 1998-2010. Clim. Dynamics., (revised).

Tb (K)

Troposphere

Tb (K)

Stratosphere

Time (year)


Scene-Temperature Dependence of Bias of Numerical Weather Prediction and Climate Change StudyFY-3A Microwave Temperature Sounder Caused by Frequency Shift After Launch

NASA TV (one of cable Channels). Or go to NASA's NPP mission website at: http://www.nasa.gov/npp


Designed and Shifted Channel Frequencies Numerical Weather Prediction and Climate Change Study


channel 4 Numerical Weather Prediction and Climate Change Study

O-B Bias

BSF-BDF

2011

Jan.

Feb.

O-B (K)

Mar.

Apr.

May.

Jun.

Tb (K)


designed Numerical Weather Prediction and Climate Change Study

shifted

MetOp

channel 4

Jan.

Feb.

O-B (K)

Mar.

Apr.

May.

Jun.

Tb (K)


O-B Bias Numerical Weather Prediction and Climate Change Study

BSF-BDF

channel 3

Jan.

Feb.

Mar.

Apr.

May.

Jun.

Tb (K)

Tb (K)


designed Numerical Weather Prediction and Climate Change Study

shifted

NOAA-18

channel 3

Jan.

Feb.

O-B (K)

Mar.

Apr.

May.

Jun.

Tb (K)


12 hour orbitals nadir position

FY-3A Numerical Weather Prediction and Climate Change Study

NOAA-18

12-hour Orbitals (Nadir Position)


SNO Matchups between MetOp-A AMUS-A Channel 9 and FY-3A MWTS Channel 4 near Arctic and Antarctic

ΔTb (K)

Without correction

ΔTb (K)

With correction

Observed Tb (K)


SNO Matchups between NOAA-18 AMUS-A Channel 7 and FY-3A MWTS Channel 3 near Arctic and Antarctic

ΔTb (K)

Without correction

ΔTb (K)

With correction

Observed Tb (K)




EUMETcast Program: ATOVS HRPT Station Distribution Channel 3 near

ATOVS --- Advanced TIROS Operational Vertical Sounder

TIROS – Television Infrared Observation Satellites

EUMETSAT --- European Organisation for the Exploitation of Meteorological Satellites

EUMETCast --- a EUMETSAT program for dissemination of various satellite data

HRPT --- High Resolution Picture Transmission


ATOVS Data Latency Channel 3 near


Real-Time Operational Satellite Data Exchange Channel 3 near Between NOAA/NESDIS and CMA/NMSCWas Established for the First Time!

One of the items in the US-China Bilateral Agreement.

An Exciting Achievement!

NESDIS --- The National Environmental Satellite, Data, and Information Service

NOAA --- National Oceanic and Atmospheric Administration

NMSC --- The National Meteorological Satellite Center

CMA --- Chinese Meteorological Admistration


Fy 3a b data volume
FY-3A/B Data Volume Channel 3 near


Noaa 18 19 data volume
NOAA-18/19 Data Volume Channel 3 near


Bandwidth storage requirements
Bandwidth/Storage Requirements Channel 3 near

  • 60 MB from FY-3A (or FY-3B) and 20 MB from NOAA-19 (or NOAA-18) data transfer volume in every 102 minutes

  • 2 hour data latency time for NWP operational data ingest cutoff, 18 minutes latency time for satellite data assimilation process

  • 500 GB to 1 TB RAID-5 configuration data storage server for real time data exchange

  • Data are protected under privacy policy agreement by both sides


Security protection
Security Protection Channel 3 near

  • Network Level

    • STAR Firewall only allows FTP access to data exchange server.

  • Operating System Level

    • Host based firewall only allows incoming FTP from public servers, however this can be further reduced to specific servers. (ingress filtering)

    • Host based firewall only allows outgoing connections that are related to the incoming FTP connections. (egress filtering)

    • Host based Anti-Virus and AV aware FTP software.

  • Software Level:

    Using ProFTP with the following options:

    (1) Require SSL (encrytion, AES256) for both the authentication and the data streams.

    (2) Require client-side certificate and username/password login (dual-factor authentication)


Current progress
Current Progress Channel 3 near

  • CMA Connects to CSTnet via 1Gbps access line

  • CSTnet links with GLORIAD (Global Ring Network for Advanced Applications Development )

  • Real connection speed is close to T-1 line (1.5 Mb/Sec)


Current progress1
Current Progress Channel 3 near

  • Software packages for secure data transfer have been installed at NOAA/NESDIS/STAR

  • Secure FTP data exchange tests have been conducted

  • Real time NOAA-19/NOAA-18 data have been

  • post in STAR server

  • Real time FY3-A/FY3-B data have been uploaded

  • to STAR server

  • Average speed is close to T-1 line at 1.5 Mb/second


Data sharing network
Data Sharing Network Channel 3 near

http://973.daracenter.org

Data bank device

Core operational device

Web device

Three service

devices

Linux standard platform

Common data bank (MYSQL)

Mature software products

Open

System

  • Fortran90

  • Web PHP


Structure
Structure Channel 3 near

Data Types

Core operation

Data Bank

GPS RO

数据传输质量控制

主动获取

(按<规则表>定时访问)

已获取的数据发布

SSMI反演系统

系统实时监控

日志与审计

CLOUDSAT

访问规则表

MIRS反演系统

GPS RO反演系统

NOAA卫星资料

数据库

MYSQL

绘图系统

被动获取

(外部数据源自动发布)

FY3卫星资料

文件管理系统

DMSP卫星资料

其它

MetOp卫星资料

Web service

常规资料

后台监听服务

温室气体资料

Web

服务

运行环境:Linux

Web display


Home Page Channel 3 near


Front page display
Front-Page Display Channel 3 near




Future work

  • FY-3 Data Processing and Applications

Future Work

  • Link FY-3 data to NOAA and MetOp data for

  • establishing climate data record (CDR)

  • Assimilation of FY-3 data in GFS WRF and

  • Chinese GRAPES data analysis systems


Acknowledgement Channel 3 near

This work is supported by Chinese Ministry of Science and

Technology project 2010CB951600 entitled “Assessment,

Assimilation, Establishment and Applications of Global

Climate Change Data Records.”

全球气候变化数据的评估、同化、融合与应用

全球变化研究国家重大科学研究计划:

(项目编号: 2010CB951600)


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