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Remote Sensing for substantive water management in arid and semi-arid areas The Brazilian Experience. Evlyn Novo Remote Sensing Division National Institute for Space Research-Brazil. Summary. Water management issues in the Brazilian arid and semi-arid region Institutional Setting

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Remote Sensing for substantive water management in arid and semi-arid areasThe Brazilian Experience

Evlyn Novo

Remote Sensing Division

National Institute for Space Research-Brazil

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

summary
Summary
  • Water management issues in the Brazilian arid and semi-arid region
  • Institutional Setting
    • Brazilian agencies using RS for water management
  • Remote Sensing Applications
    • Desertification assessment
    • Crop irrigation monitoring
    • Aquaculture zoning
    • Cartography
    • Reservoir management

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

brazilian arid and semi arid region
Brazilian arid and semi-arid region
  • 880 000 km2 to 1000 000 km2
  • 10 states
  • 1257 municipalities
  • 20 million inhabitants
  • 18 650 artesian wells
  • 12 190 active artesian wells
  • 490 000 ha of irrigated land

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

water management issues
Water management issues
  • Land degradation and desertification
  • Crop irrigation & salinization
  • Soil erosion & reservoir silting
  • Hydroelectric power generation
  • Urbanization & drinking water shortage

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

institutional setting
Institutional setting
  • Federal Agencies
    • Water Resources Secretariat at the Ministry of Environment,Water Resources and Legal Amazon (MMA)
      • National Desertification Plan
    • Semi-arid Research Unity (CPATSA) of the Brazilian Agricultural Research Corporation (EMBRAPA)
      • Crop irrigation, soil degradation
    • National Water Agency (ANA)
      • National Water Research Program
    • Brazilian Geological Survey (CPRM) at the Ministry of Mines and Energy (MME)
      • Ground water survey in the Brazilian semi-arid region
    • National Electric Energy Agency (ANEEL) - MME
      • Electric Energy Production and Consumption Legislation Enforcement

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

institutional setting6
Institutional setting
  • Regional Agencies
    • S.Francisco River Basin Development Company (CODEVASF)
      • strategies for reducing water use conflict
  • State Agencies
    • Ceara Meteorology and Water Resources Institute (FUNCEME)
      • Weather forecast

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

remote sensing applications
Remote sensing applications
  • Desertification Regional Survey
    • MMA/UFPI
      • Vegetation cover information derived from remote sensing data + soil maps + meteorological data from ground stations

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

irrigated crop monitoring
Irrigated crop monitoring

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

reservoir flooded area assessment

Xingo Reservoir

Reservoir flooded area assessment

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

remote sensing aquaculture
Remote sensing & aquaculture

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

cartography
Cartography
  • X Band SAR interferometry
    • S. Francisco transposition project
    • 420 Topographic charts at 1:5 000 scale
    • 2 m contour line
    • 1 m precision
    • 10 000 km2
    • 2 year project – 1998/1999

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

x band sar interferometry
X band SAR interferometry

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

reservoir management
Reservoir management

S. Francisco Reservoirs

  • Ground sampling

Reis, 2002

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

reservoir silting assessment
Reservoir silting assessment
  • Landsat - ETM+ concurrent to ground data acquisition
  • Empirical modeling

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

legal enforcement
Legal enforcement

Enforcement of the water conservation law

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

surface water monitoring
Surface water monitoring

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002

concluding remarks
Concluding remarks
  • The use of remote sensing techniques for water resources management in Brazil is far behind of other applications.
    • 1) lack of cloud free remote sensing data at a time frequency compatible to the water resource monitoring needs;
    • 2) lack of human resources capable of coupling with the complexity of remote sensing applications to water resources.

39th COPUOUS/SCT Symposium on Remote sensing for substantive water management - Viena - February 25-26, 2002