The Project:
• Why SEA-BASINS
• Implementation
• Partner Network

NAGA
• Strategy
• SE Asia Models
• Informatics

Active Basins
• Mekong Basin
• Sub-basins

• Restricted Papers
• Restricted Data

NAGA: Southeast Asia Models

The NAGA environment represents a strategy for capturing the characteristic structure and dynamics of large-scale river basins by building multiple time- and space-scale integrated data bases and computer models of 1) the spatial structure, or template, of a region; including the slowly changing geophysical structure and the more rapidly changing landuse and landcover of the region and the factors that may drive its change, 2) the rapidly changing physical forcing, or climate, and 3) the movement of elements (water, carbon, nutrients, sediments) across the landscape and to the sea.

The following models apply to the region as a whole. Subsequent specific basins (e.g., the Mekong) are derived from or nested within this framework.

The Physical Template (Defining SE Asia)
DEM

• Raw Digital Elevation Model
• Creating a Depressionless DEM
• Creating River Basins from the DEM
• Relief Map of the Internally Consistent DEM

River Basins and Networks

• DCW Rivers Coverage Information
• Discrepancies Between the DEM and DCW
• Forcing the DEM and DCW to be Consistent

Coastal Zones of SE Asia

• DEM-derived Surface Water Travel Zones
• DEM-derived Basins for the Mainland
• Creation of a Coastal Zone
• Coastal Transport 1-day Lag

Climatology and Streamflow
Precipitation

• NCDC Stations
• Global Daily Summary Climate Data 1977-1991

Streamflow

• Global River Discharge

Landuse and Landcover
Vegetation Cover

• Seven Landcover Schemes
• Percent Tree Cover
• MODIS 2000 Landcover Classification
• Michigan State University Forest Cover Change
• 300 Years of Landcover Change, HYDE Database

Landuse

• 1998 Landscan Global Population

Coastal Productivity

• SeaWiFS Chlorophyll and Rivers
• Image Selection
• First Cut
• Processed Image
• River Plumes and Coastal Marine Productivity

Process Models
Water Balance and Routing Model (VIC)

• Overview of VIC
• VIC Application Reference
• VIC Customization
• Prototype Water Resources
• Prototype Near Real Time Forecasting

Water Chemistry and Productivity

• Sediment Production and Routing
• Aquatic Chemical Dynamics
• Fisheries Productivity