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Dongting Lake Dynamics

Dongting Lake Dynamics. ESA-DRAGON-3 Project 10697 Subtopic: M onitoring of Dongting Lakes Wetlands Juliane Huth , Claudia Kuenzer, DLR, Germany. Challenges at Dongting Lake. Economic Use of Wetland Areas. Floods and Droughts. Water Quality. Urban Growth. Cash Crops.

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Dongting Lake Dynamics

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  1. • ESA-Dragon 3 • ID 10697 • May 2014 Dongting Lake Dynamics ESA-DRAGON-3 Project 10697 Subtopic: Monitoring of Dongting Lakes Wetlands Juliane Huth, Claudia Kuenzer, DLR, Germany

  2. • ESA-Dragon 3 Symposium • Palermo, Italy • ID 10697 • June 4th, 2013 Challenges at Dongting Lake Economic Use of Wetland Areas Floods and Droughts Water Quality Urban Growth Cash Crops

  3. ESA-Dragon3 project (2012 – 2016) – focussing on joint data use of Chinese and European satellite sensors Assessment of flood pulse, wetland development, quantification of wetland degradation, derivation of land use change in direct surrounding of the Dongting Lake Methods: remote sensing data analyses based on radar and optical data with preferably automated derivation of surface water, and further parameter to describe flood events and land cover change Data used: Envisat ASAR, Terra-SAR-X, Landsat, SPOT Data to be used in future: HJ-1A,1B, MS, CBERS, Envisat MERIS… • ESA-Dragon 3 Symposium • Palermo, Italy • ID 10697 • June 4th, 2013 Objectives of the Project ID 10697"Assessing Wetland Dynamics and Land Resources of Dongting Lake, China"

  4. • ESA-Dragon 3 • ID 10697 • May 2014 Data sources: SPOT and HJ1-A Data Footprint Huth et al. (2013) - Submittedto„Journal of Applied Remote Sensing“

  5. SPOT 2007, SPOT 2010 and HJ1-A 2013 Seasonal information for classification of 2-season-dataset (spring and winter image) • NDVI Difference • TC Greenness Difference and TC Brightness Difference Common Features: • Spectral bands 1-3/4 of SPOT2/4 • NDVI • Tasseled Cap Greenness and Brightness (for SPOT only) • Principal Components (for HJ1-A only) • ESA-Dragon 3 • ID 10697 • May 2014 Processing SPOT data and HJ1-A data using seasonal information Huth et al. (2013) - Submittedto„Journal of Applied Remote Sensing“

  6. • ESA-Dragon 3 • ID 10697 • May 2014 Classification of 2007 and 2010 SPOT data – focus on inner Dongting Lake wetland area Huth et al. (2013) - Submittedto„Journal of Applied Remote Sensing“

  7. • ESA-Dragon 3 • ID 10697 • May 2014 Classification of 2013 HJ1-A data – focus on inner Dongting Lake wetland area Huth et al. (2013) - Submittedto„Journal of Applied Remote Sensing“

  8. • ESA-Dragon 3 • ID 10697 • May 2014 Change Analyses 2007 – 2010 – 2013from SPOT and HJ-1A data – with focus on economically used vegetation types poplar and reed Huth et al. (2013) - Submittedto„Journal of Applied Remote Sensing“

  9. • ESA-Dragon 3 • ID 10697 • May 2014 Change Detection – From Poplar / To Poplar I Huth et al. (2013) - Submittedto„Journal of Applied Remote Sensing“

  10. • ESA-Dragon 3 • ID 10697 • May 2014 Change Detection – From Poplar / To Poplar II • Quantitative comparisonofchanges in inner South Dongting Lake wetlandareashowdramaticnumbersofeconomicuseofwetlandareas (Ramsarwetlandsites no.1151 and 1154 nearby) • From2007 to 2010 +19,5% increaseandfrom2010 to 2013 +24,1 % increasein poplararea

  11. • ESA-Dragon 3 • ID 10697 • May 2014 Thank you for your attention! For further questions please contact: juliane.huth@dlr.de Earth Observation Center (EOC) of German Aerospace Center (DLR)

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