historical assessment of spatial growth of built-ups and...
TRANSCRIPT
Date : 12 April 2011
Historical Assessment of Spatial Growth of Built-ups and Metropolitan areas of Delhi and Mumbai in India
and Dhaka in Bangladesh
Tomas Soukup, GISAT
World Bank HQ, Washington DC
GISAT company facts:- SME geoinformation company since 1991- located in Prague, Czech Republic- committed to remote sensing services- ISO quality certified
Strong expertise in:- land monitoring - urban/spatial planning- environment- agriculture - emergency response & security
Clients/customers:- National , European, Worldwide
More to be found on http://www.gisat.cz
Introduction : The EO Service Provider
Background : The World Bank Project
WB Task team Leader (TTL) : Mr. Songsu Choi, South Asia RegionWB Team participants : Mr. Mats Andersson, Country Offices Project users : municipalities’ administration, WB activities TLs
- Project context :- Rapid urbanization & excessive slums expansion in South Asia- Delhi, Dhaka and Mumbai - megacities on top of the list - WB South Asia Megacities Improvement Program running
- Project Information requirements:- Key - a sequence of land use datasets monitoring urban growth- Additional - urban density mapping and road network mapping
- Reason / Driver for this information:- Sustainable urban management & planning - strategic policy priority - Better understand the spatial growth of built-up areas, its structure and
trends
The EO Information Products :What they are (1)
Time series of land use / land cover
- Standard product with flexible contents
- Thematic contents: 11 classes focused on urban (6 including density classes), agriculture, forest, water and other classes
- Spatial coverage: ~15000km2
- Temporal coverage: span of 20 years
- Timeliness:
Delhi 1992-2003-2011
Dhaka 1992-2002-2011
Mumbai 1991-2001-2011
- Resolution: 20m, minimal mapping area 1ha
- Validated product on Europe and Worldwide service cases
- EO data used: European HR missions archives - RapidEye and Spot1-5
The EO Information Products :What they are (2)
Land use / land cover changes Report with change statistics
- Standard product with flexible contents
- Thematic contents: 11x11 change classes; 8 change flows defined
- Spatial coverage: ~15000km2
- Temporal coverage: 3 periods in 20 years
- Resolution: 20m, minimal mapping area 1ha
- Statistics: consumption & formation share, balance; spatial distribution and intensity of changes; trends
- Validated product on Europe and Worldwide service cases
The EO Information Products :What they bring
Service benefits
- harmonised contents for large areas over long time
- information on spatial composition, quality and intensity of changes
- information comparable between megacities
Service advantages over existing solutions
- more time & cost efficient then on-site survey
- change detection (topomaps potential limited)
Limitations / Constraints
- EO data availability, quality and acquisition time
- availability of in-situ information
Positive impact on WB Project
- insight into urban related processes and drivers
- knowing the past / forecasting the future
- identification of priority areas
- more focused and efficient use of resources
Examples of Previous UseLand Use Mapping
Azerbaijan - Baku, Absheron
User: World Bank / SCUPA
Objectives:- production of up-to-date EO based land use
information for large area (AOI ~ 1.500 km²)- support creation of Greater Baku Regional
Development Plan
- Results: series of land use information, maps & statistics
- Service produced in the context of the GSE RESPOND project in 2008
- EO data: HR/VHR imagery (SPOT5, ALOS & KOMPSAT)
- Users feedback:“… your effort is very much appreciated by SCUPA management and theybelieve that these maps will be very useful for further actions in preparing of the GBRDP.”
Contact: Mr. Fuad Jafarli, SCUPA
Copyright: M. Tomik, 2006
Examples of Previous Use Change Analysis
Europe – Land Cover changes 2000/2006
User: European Environmental Agency (EEA)
Objectives:- production of countries & Europe analysis and
assessment based on CLC pan-European data 2006 - compliance with the EEA integrated assessment
framework- support of the EEA analytical & reporting obligations
- Results: statistics, graphs, change intensity maps and assessments for EEA38 countries
- Service produced in the context of the EEA contract in 2010
- Users feedback:Direct input into to the EEA Land Use Data Centre (LUDC), support of the ‘State and Outlook of Europe’s Environment‘ (SOER2010) and the ‘Europe’s Environment Assessment / Eureca2012‘ as well as other specific reports on land issues.
Contact: Mr. Markus Erhard, EEA
Copyright: M. Tomik, 2006
Date : 12 April 2011
Thank you
Questions & Discussion