© 2014 Jena-Optronik GmbH
GlobWetland II Monitoring of Wetland ecosystems for
sustainable water management
A regional pilot project for the Ramsar convention on wetlands
DUE program
Kathrin Weise, Marc Paganini, Martin Faber, Max Tobaschus
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GlobWetland II Objectives
Contributes to the set up of a Global Wetlands Observing System (strategy 1.2 of the Ramsar Strategic Plan 2009-2015 adopted at the Conference of the Parties, COP 10 South Korea)
Facilitate the integration of remote sensing into the conservation and management of wetlands
Create standard and comparable geo-information products (principally based on EO technologies) about the status and trends in wetlands ecological character
GlobWetland II
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Landsat TM 2005-09-21 R:Ch3 / G: Ch2 / B: Ch1
Lake Burullus in the Nile Delta / Egypt
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Landsat TM 2005-09-21 R:Ch3 / G: Ch2 / B: Ch1
The surface of Lake Burullus was reduced by over 20 % during this century due to large scale land reclamation for agriculture, aquaculture, housing and transportation. Therefore it was added to the Montreux Record, 4 July 1990
Lake Burullus in the Nile Delta / Egypt Ramsar List of wetlands since 09 Sep. 1988
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Azraq Oasis in Jordan
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CLC 32 shrub and/or herbaceous vegetation association CLC 331 beaches, dunes, and sand plains
333 sparsely vegetated areas
CLC 32 shrub and/or herbaceous vegetation Association & permanent water
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Excessive pumping of water from the oasis to large urban areas and illegal drilling for agriculture resulted into an environmental disaster in 1991
Azraq Oasis in Jordan Ramsar List of wetlands since the 10 Jan. 1977
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• The project consortium developed a GW-II toolbox on the basis of the User requirements
• The project consortium operated the GW-II toolbox (producing pilot products for 200 wetlands)
• The GW-II toolbox and the database is transferred to the hosting user organisations including training and capacity building
• The user organisations operate the GW-II Information System
Develop
Operate
Transfer
GlobWetland II Approach
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Location of the 200 GlobWetland II Wetlands
200 Wetland locations in 10 Countries in Northern Africa and Middle East (from Morocco to Syria) mapped by the GW-II team
1800 Wetland maps + indicators
150 additional wetland locations, mapped by TdV/MWO using the GlobWetland II methodology and software for the Northern Mediterranean Countries
1350 additional maps + additional indicators
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Wetland Information Maps:
Indicators:
GlobWetland II products
1. Land Use Land Cover
2. Land Use Land Cover Change
3. Water Cycle Regime
1. Change in wetland area
2. Inundation of the ecosystem
3. Change in wetland area due to urbanization and agriculture
4. Status and trends of wetland threats
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Satellite input images Radiometric and geometric pre-processing Segmentation
Training for classification LULC classification result of 2 different years WCR classification
Change / no-change masking Post classification change Indicator computation Map layout
Software for all workflow steps for the production of maps and indicator
Just one software
system for all map and indicator
production steps !!
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GlobWetland II Toolbox in ArGIS = GEOclassifier + Wetland extension
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GEOclassifier – stand alone version with segmentation / classification tools
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Land Use Land Cover (LULC) time series along the river Jordan
Map examples
Water Cycle Regime Map in Algeria
LULC Change map in Egypt
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1975 1990 2005
Ind_STadm (area inside the administrative boundary) Ind_STbuf (area outside the administrative boundary)
artificial surfaces agricultural areas
Status and Trend of Wetland & Land Use Land Cover of Rio Martine Lagoons and Marshes (902) in Tunisia
Indicator - Analysis
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7421,105
7049,237
7328,319
6500
6750
7000
7250
7500
7750
8000
W tl d A ( k )
1975
1990
2005
Wetland Area (sqkm)
115 wetland sites - 8 Mediterranean countries
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The change in wetland area is the difference of the wetland surface (Swet) between two periods.
Change in Wetland Area
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Lake Burullus Nile Delta / Egypt
Azraq Oasis in Jordan
Processing results based on the S2 simulation / Take 5 data Pre-processing • masking of clouds • Masking of pixels with values below 0 Water detection • Max. / Min water extend detection and water
surface calculation • Aquaculture detection • Water quality mapping (aquatic vegetation,
turbidity, … ) Agriculture detection • Irrigation mapping • Mapping of water consuming plants
Available data • Spot 4 and RapidEye time series with a 5-day revisit (from
February to June 2013) • Landsat-8 (from May 2013) • Burullus: 15 of 24 SPOT4, 11 of 23 RE usable • Azraq 21 of 25 SPOT 4 and 13 of 22 RE usable
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Jena-Optronik. Company Presentation, Page 18 Proprietary Information
- NDRW, NDVI, NDWI und CEDEX insufficient
- Best separability for MNDWI und Spectral Relationship (GREEN + RED) – (NIR + MIR) >0
Separability of water – investigated indexes:
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Jena-Optronik. Company Presentation, Page 20 Proprietary Information
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- Landsat 7 16 days - flooded 1x
- SPOT4 Take5 5 days - flooded 4-5 x
Water extend in Wetlands Azraq und Qa Khana and Wadis al Butum and Shaumari
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Surface water entrapments in Azraq
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Transfer
2-6 June 2014 Training of the trainers
in Tunisia
GW-II events
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