EURASIAN WATER CONFERENCE 3rd ASEM Seminar on Urban water management Urban solutions for global challenges September 2018 Budapest

Transcription

1 EURASIAN WATER CONFERENCE 3rd ASEM Seminar on Urban water management Urban solutions for global challenges September 2018 Budapest

2 The Design of Multi-dimensional Dongting Lake Enviormental Observation System

3 Brief Introduction EXPERIENCE National University of Defense Technology, Changsha,Hunan,China teaching assistant, 7/ /1996 National University of Defense Technology, Changsha,Hunan,China Assistant Professor, 1/ /2001 National University of Defense Technology, Changsha,Hunan,China Associate Professor, 1/ /2006 National University of Defense Technology, Changsha,Hunan,China Professor, 1/ /2017 Hunan University, Changsha,Hunan,China Distinguished Professor, 1/2018 Present

4 Brief Introduction EXPERIENCE Be the Chief Manager of the Center of Material Science in National University of Defense Technology since 2004 Be the Chief scientist of the project 'the UV Characteristics of High Tempertature Gas' and 'the IR Characteristics of High Tempertature Gas'--863 National High Technology Porgram since 2010 Be the Chief manager of Hunan Hongdong Optoelectronic Ltd. Since 2017

5 ITEMS 1 The importance of establishing the observation system 2 The structure of the observation system 3 Some key technology in the observation system 4 Expected Results of the observation system

6 The importance of establishing the observation system Dongting Lake is the second large freshwater lake in China,has the most importance of regulation and storage function in Yangzi river and supporting the zone s economic development. Dongting lake is an international wetland protection zone,is many valuable and rare birds and fish s home

7 The importance of establishing the observation system The nitrogen phosphorus concentration rises rapidly, some basin s water quality is degraded The fish s home is destroyed, some kind of fish is rare

8 The importance of establishing the observation system The president Xi Jinping,the people s congress in Hunan province, and the Hunan province government are all paying more and more attention on the Doting lake s environment protection

9 The importance of establishing the observation All-weather Whole-basin All-time To control the Dongting lake s pollution, We need firstly establish an environment observation system which can work in whole -basin, all-weather and all-time

10 The importance of establishing the observation The current situation of environmental observation Many government sectors Forestry Department, Water Resources Department, Agriculture Department, Environmental Protection Bureau, Meteorological Bureau The distribution is not rational, can only cover 10% of the basin The data is not compatible and the data flow can not be connected The technical method need to be improved Some important water quality data need 24 hours

11 The structure of the observation system

12 The structure of the observation system Existing data fusion system Multi-dimensional platform MDEOS Observation sensor system Data analysis system International exchange supporting system

13 The structure of the observation system Existing data fusion system Designing a uniform data format and data structure, that we can solve the dispersive data s fusing problem Designing a database which has high-security and high-expansibility

14 The structure of the observation system Multi-dimensional platform High resolution observation satellite Gaofen4,Gaofen5 carry multispectral and hyperspectral cameras that they can cover a large area, so we use the satellites data to calculate the waterarea, serious pollution pictures and flood pictures But it can not provide detail information about Dongting lake s water-quality, flow-velocity, waterlevel, biological information. Under a heavy weather condition, the satellite s sensors will be disturbed badly. We can not get the Dongting lake s satellite data in real time!

15 The structure of the observation system Multi-dimensional platform Near space aerostat fly at 20Km high, fly in stratosphere so it can stay at an located area monthly. Illustrating a 46 o view filed camera, on the aerostat the camera can observe 270 square kilometers, only two aerostats with multispectral and hyperspectral cameras can cover the whole Dongting lake area. This can greatly prove the satellite s data s realtime capability

16 The structure of the observation system Multi-dimensional platform 低空机动飞艇 Moto airship fly at 3-5Km, combining with high accuracy optical measure and control technology, it can measure water-level using laser-distance-measurement technology to reach precision to the millimeter, it is very useful in disastrous weather Carrying remote sensing spectral sensors, it can measure chemical gas s kind and expansive mode. It also can measure water s TN/TP, blooms, chlorophyll contents, transparency in about 3spkm. At the same time, this airship will be a communication center to control autonomous ships and the ground base sensors.

17 The structure of the observation system Multi-dimensional platform 常规系留艇 Tethered airship working at about m high, with remote sensing spectral and video sensors, located above the important point Monitoring the pollution source and other emergency situation over the area about 5-10sqKm Be the power source for autonomous ship & the ground base sensors

18 The structure of the observation system Multi-dimensional platform autonomous ship carrying ship based spectrometers can directly measure COD,BOD5,TP/TN, nitrate nitrogen, nitrite nitrogen, chlorophyll, heavy metal ion. The ship will be repowered and controlled by the airship,so it can move around 20Km

19 The structure of the observation system Observation sytem Micro-nano optical filter camera need not traditional optical spectra unit, so it is the lightest and cheapest spectral sensor, and will be mounted on airship platform. LIF(Laser Induce Fluorescence) and microreagent spectrometer will be mounted in the autonomous ship, so that, these kinds of sensors can test the water directly.

20 The structure of the observation system Data analysis system Fusing high resolution observation satellite, near space observation system, airship observation system and autonomous ship observation system to accomplish the space-sky-water multi-dimensional observation functions.

21 The structure of the observation system International exchange supporting system Research on international data exchanging method Research on international inland river environmental observation technical standard Research on building international water resource data base system

22 The structure of the observation system Framework

23 Some key technology in the observation system

24 Some key technology in the observation system Key technology in the airship Environmental adaptability-how to work under the strong wind, heavy rain and thunders Ability to work for extended periods High accuracy and light sensor holder

25 Some key technology in the observation system Key technology in Spectral sensors Dongting lake fingerprint spectrum database Micro-nano optical filter spectral sensor

26 Intensity (a.u.) Intensity (a.u.) Intensity (a.u.) Intensity (a.u.) I A I C λ A I B λ C λ B λ λ λ pixel I D λ D λ

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28 Some key technology in the observation system Key technology in autonomous ship Wireless repower technology Liquid sample automatic collector and the automatic direct communication unit

29 Expected Results of the observation system

30 Expected Results of the observation system Supporting the significant science and technology platform in Hunan province, china to Improve the ASEM water security technology, to implement the UN 2030 sustainable development agenda

31 Expected Results of the observation system To support building National field scientific observation and research station in Dongting lake area

32 Thanks a lot!

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