Yuji Masutomi Masutomi Yuji Assistant Fellow Assistant Fellow - - PowerPoint PPT Presentation

Development Development and Application and Application of

• f

Global Global Drainage Drainage Basin Database Basin Database （ （GDBD GDBD） ）

12 12th

• th. AIM International Workshop

. AIM International Workshop

February 19 February 19th

th-

• 21

21st

st, 2007

, 2007 National Institute for Environmental Studies, Japan National Institute for Environmental Studies, Japan

Yuji Yuji Masutomi Masutomi

Assistant Fellow Assistant Fellow National Institute for Environmental Studies National Institute for Environmental Studies

Motivation and Overview of GDBD Motivation and Overview of GDBD

• In the 21st century, human well

In the 21st century, human well-

• being will be locally and globally

being will be locally and globally affected by various water affected by various water-

• related issues.

related issues.

• freshwater scarcity and pollution, floods, disturbance of bioge

freshwater scarcity and pollution, floods, disturbance of biogeochemical

• chemical

cycles, conflicts in international river basins and so on cycles, conflicts in international river basins and so on… …. .

• For understanding and addressing these issues, baseline data is

For understanding and addressing these issues, baseline data is prerequisite. prerequisite.

• So we have developed

So we have developed Global Drainage Basin Database (GDBD) Global Drainage Basin Database (GDBD). .

• Consists of 6 GIS data

Consists of 6 GIS data

• Basin boundary

Basin boundary data data

• Stream network

Stream network data data

• Discharge station

Discharge station data data

• Natural lake

Natural lake data data

• Dam lake

Dam lake data data

• Flow direction

Flow direction data data

• Gives us

Gives us

• hydrological flows of land surface

hydrological flows of land surface

• appropriate spatial unit

appropriate spatial unit

• for

for analysis, assessment and management analysis, assessment and management

• Geographic, topographic, and social information

Geographic, topographic, and social information

• Each polygon represents elementary drainage basin

Each polygon represents elementary drainage basin

• Each elementary drainage basin has a broad range of information

Each elementary drainage basin has a broad range of information GDBD_ID: Identification number Region、Sub-region、Basin、Downstream Country Cachment area、Mean elevation、Mean slope Population、Population Density Land use/cover Circumference、Area Basin Boundary Data Stream Network Data Discharge Station Data Natural Lake data Dam lake data

Features Features of GDBD

• f GDBD ①

①

• Data format

Data format-

• ArcGIS Geodatabase

ArcGIS Geodatabase format format

• ArcGIS

ArcGIS ＋ ＋ MS Access MS Access

• Suitable for development of database based on GIS data

Suitable for development of database based on GIS data

• We can browse and edit database

We can browse and edit database

• Not only by ArcGIS but also by MS Access

Not only by ArcGIS but also by MS Access

• Useful for those not familiar with GIS

Useful for those not familiar with GIS

Features Features of GDBD

• f GDBD ②

②

• Data r

Data resolution esolution-

• High

High-

• resolution data (30 seconds

resolution data (30 seconds≒ ≒1km) 1km)

Comparison between 30 min and 30 sec basin boundary Comparison between 30 min and 30 sec basin boundary

Application of GDBD Application of GDBD

• Development of

Development of Water Supply/Demand Calculation Model Water Supply/Demand Calculation Model-

• Climate Data

（GSWP2：Temperature、Precipitation）

River Discharge Calculation Module River Discharge Calculation Module Water Demand Calculation Module Water Demand Calculation Module Runoff Calculation Module Runoff Calculation Module

AQUASTAT Shiklomanov Population Data Crop Water Requirement Data Water Consumption Runoff Basin boundary Dam Lake Stream Network Natural Lake

GDBD

River Discharge

Discharge Station Climate Data （GSWP2：Temperature、Precipitation）

River Discharge Calculation Module River Discharge Calculation Module Water Demand Calculation Module Water Demand Calculation Module Runoff Calculation Module Runoff Calculation Module

AQUASTAT Shiklomanov Population Data Crop Water Requirement Data Water Consumption Runoff Basin boundary Dam Lake Stream Network Natural Lake

GDBD

River Discharge

Discharge Station

Result Result -

• Global

Global-

• Abundant in

Abundant in hi hi-

• latitude

latitude and and equatorial equatorial region region

• Scarce in

Scarce in mid mid-

• latitude

latitude region region Annual river discharge [m3/s] There is spatial variability of water resource

Result Result -

• Regional

Regional-

• We can see spatial variability of water resource

We can see spatial variability of water resource at small scale at small scale by by using using high high-

• resolution basin boundary data of GDBD

resolution basin boundary data of GDBD

Annual river discharge [m3/s] （Indochina Peninsula）

Summary and future plans Summary and future plans

• We have developed Global Drainage Basin Database

We have developed Global Drainage Basin Database (GDBD) (GDBD)

• Basin boundary, Stream network, River discharge station,

Basin boundary, Stream network, River discharge station, Natural lake, Dam lake, Flow direction Natural lake, Dam lake, Flow direction

• a broad range of information

a broad range of information

• We have developed water supply/demand calculation

We have developed water supply/demand calculation model based on GDBD. model based on GDBD.

• We can see spatial variability of water resource by this model

We can see spatial variability of water resource by this model

• We will apply GDBD and the model based on GDBD to

We will apply GDBD and the model based on GDBD to not only global but also regional water not only global but also regional water-

• related problem.

related problem.

世界流域データベース Global Drainage Basin Database （GDBD） 世界流域データベース Global Drainage Basin Database （GDBD）

Available soon Available soon from from http://www http://www-

• cger.nies.go.jp/cger

cger.nies.go.jp/cger-

• j/db/dbhome.html

j/db/dbhome.html

Thank you for your attention Thank you for your attention