1 Regional and Global Eco-Hydrological Parameter Products Synergizing Multi-source Remote Sensing Data Qinhuo Liu ([email protected]) State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences 2016-10-26 Beijing Global Conference “more than a decade enhancing water and sustainable development for arid regions”
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Regional and Global Eco-Hydrological Parameter Products Synergizing Multi-source Remote Sensing Data
State Key Laboratory of Remote Sensing Science,Institute of Remote Sensing and Digital Earth,
Chinese Academy of Sciences
2016-10-26Beijing
Global Conference “more than a decade enhancing water and sustainable development for arid regions”
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1. Objectives
2. Multi-source data Synergized Quantitative remote sensing production system(MuSyQ)
3. Eco-Hydrological Key Parameter Products
4. Conclusion and Expectations
Contents
Distributed Hydrological Model :DHSVM(Wigmosta et al., 1994)、SWAT(Arnold and Fohrer, 2005)and GEOtop(Rigon et al., 2006);
Underground Water model: MODFLOW(Harbaugh et al., 2000);
Dynamic vegetation model and Vegetation Growth model: LPJ-DGVM(Sitch et al., 2003)、BIOME-BGC(Thornton and Running, 2002) and WOFOST(Vandiepen et al., 1989);
Land surface process model: SiB2(Sellers et al., 1996)、CoLM(Dai et al., 2003)and CLM 3.0/4.0(Oleson et al., 2010)。
Li, Xin et. al., BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, 2013
What kind of parameters are needed for Eco-hydrological models??
驱动生态水文过程模型需要哪些参量?
variables/parameters applications Chinese satellite International satellite
China-ASEAN has become a new engine for world economy. ASEAN mainly includes the Indo-China Peninsula and Malay Archipelago in
the southeast of Asia.
The increasingly acceleratedurbanization, rapid growth ofpopulation and socio-economicdevelopment could cause a seriesof ecological environmentalproblems.
There is hence an urgent need tomonitor the ecologicalenvironment and to cooperate inrespect of environmentalprotection in China-ASEAN.
3.2 Eco-Hydrological Key Parameter Products for China-ASEAN
Fig. 1 Distribution of PAR in China-ASEAN in 2013
The maximum value of PAR in theregion is 3,500 MJ/m2, which islocated on the south slope ofTibetan Plateau with relativelylow latitude and high altitude;and the minimum value is 2,400MJ/m2, which is located inHeilongjiang, the northeast ofChina, with a relatively highlatitude and a low altitude.
As the ASEAN countries are inthe region with low latitude,their annual PARs are close andare generally 3,000 MJ/m2.
Fig. 2 Distribution of annual light-temperature potential productivity in China-ASEAN in 2013
The lowest annual light-temperaturepotential productivity in China-ASEANis on the Tibetan Plateau and thehighest is on Indo-China Peninsula.
It can be above 225 t/hm2 (hm2: hectare)in some areas of Myanmar, Thailand andCambodia on the Indo-China Peninsula,the highest value of the region; theannual light-temperature potentialproductivity at the boundary of thenorthwest part of the Tibetan Plateauand Xinjiang is below 25 t/hm2, thelowest value in the region.
The annual light-temperature potentialproductivity in eastern China presentsthe trend of gradual increase fromnorth to south, and the highest valuecan be up to 50t/hm2.
Fig. 3 Spatial distribution of the evapotranspiration in China-ASEAN
Malaysia in China-ASEAN has the best overallwater conditions, followed by the Indo-ChinaPeninsula. China has the poorest water conditionswhich are extremely uneven in their spatialdistribution.
The area with a tropical rainforest climate inMalay Archipelago has a stable precipitationthroughout the year, while the precipitation inIndo-China Peninsula characterized with tropicalmonsoon climate and tropical savanna climate hasobvious differences in dry and rainy seasons, ofwhich the precipitation in the rainy seasonaccounts for about 70~80% of the annualprecipitation;
the evapotranspiration of each month in the ASEANcountries is above 40 mm and there is no obviousdifference in the dry and rainy seasons.Different climate areas in China arecharacterized with wet/warm and dry/cold seasonsand the precipitation and evapotranspirationreach their peak in June – August in summer.
Malaysia has a tropical rainforest climateand tropical rainforest ecosystem withprecipitation(3,022mm), evapotranspiration(947mm) and water surplus (2,075mm) higherthan those of the Indo-China Peninsula(2,107 mm, 793 mm, 1314 mm).
Under the influence of the temperatecontinental climate, the precipitation(720 mm), evapotranspiration (383 mm) andwater surplus (337 mm) of China are thelowest in the region.
The water deficit area in China-ASEANaccounts for 9% and mainly distributes inthe agricultural areas in north andnorthwest China, the Tibetan Plateau, etc.
Fig. 4 Spatial distribution of the water surplus in China-ASEAN
2013.
(a) (b)Fig. 7 (a) Runoff depth and (b) Rainfall Distribution in the Lantsang-Mekong River Basin from June 2013 to May 2014
Simulationperiod
Lancang Riverbasin (m3/s)
Stung Treng section (m3/s)
Proportion (%)
Whole Year 1525 13732 11.1RainySeason 2657 27088 9.8
DrySeason 748 4257 17.6
Table Proportion of the average daily flow of the Stung Treng section from the LancangRiver basin in rainy season, dry season and a whole year Runoff volumes at the four
main control sections,mainly concentrate in rainyseason from June to October:
Chiang Saen of Thailand; 73.4%,
Luang Prabang of Laos: 73.6%
Mukdahan of Thailand:81.3%
Stung Treng of Cambodia:81.4%
The annual total runoffvolume at the Stung Trengsection is 433 billion m3,which is close to anaverage year level.
3.3 Global Eco-Hydrological Key Parameter Products
共 个传感器MODIS-Terra/Aqua, FY3A/B-MERSI共4个传感器
1KM, 5 day
全球1km5天合成植被指数
全球1km5天合成植被指数动画
全球1km5天合成植被覆盖度和叶面积指数
2014年1km5天LAI动画
全球1km气溶胶光学厚度产品
1km地表发射率
宽波段发射率3-∞um示意图
1km地表温度与地表反照率产品
5km卫星地表温度
全球5km地表温度产品:2012年6月1日
日总下行短波辐射(2012-7-1)
0
480W/m2
DSR/PAR 产品
全球下行长波辐射(3小时,5km)
全球土壤水分产品(25km)
全球月度5km蒸散发产品
全球蒸散发产品1,7月均(5km)
Annual Report on Remote Sensing Monitoring of Globle Ecosystem and Environment(GEO ARC)“The China-ASEAN Ecological Environmental Conditions”, “The Belt and Road Ecological EnvironmentalConditions” were released public by Ministry of Science and Technology on 5 June, 2015 and 6 June,2016. ( www.nrscc.gov.cn)
Dataset and products will be shared based on “the national comprehensive earth observation datasharing platform ",
http://www.geodoi.ac.cn/WebCn/Default.aspx
http://124.16.184.151/dsp/home/index.jsp
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1. Objectives
2. Multi-source data Synergized Quantitative remote sensing production system(MuSyQ)
3. Eco-Hydrological Key Parameter Products
4. Conclusion and Expectations
Contents
(1) Demonstration applications show that the Multi-source SynergizedQuantitative Remote Sensing Production System (MuSyQ) has thecapabilities to integrate the Chinese, European, and other satelliteobservation to retrieve the global and regional scale land surfaceparameters.
(2) Large-scale monitoring and analysis based on the MuSyQ productscan been used for ecological and hydrological system evaluation andsimulation.
(3) Comprehensive assessment may be carried based on the ecologicalenvironmental and water resource conditions for global andregional scale.
Conclusions
(1) Synergizing accumulated earth observationdata(Geostationary and polar orbiting, USA,China, ESA and other sides) to generate theglobal long-term, consistent and accuratehydrological products
(2) Validate the remote sensing product of landsurface parameters at different scale
(3) Combine remote sensing observation with theland surface process model to support globalhydrological and ecological monitoring