Global Water Resource Archive : Annual River Discharge

TOP > RESULT > Global 0.5 grid > Annual > Annual River Discharge

(Original Position: data/discharge/annual/, data/global/Global/XYZ_km3(*.ascfile))

Data

1. Ave. of 9 LSMs Output (GSWP Average (except for MESO), Height of Runoff, mm/yr) :
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2. LSM Output (Discharge, 10⁶m³/yr) :
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3. TRIP River Discharge (10⁶m³) and height of runoff(mm. Area is obtained from Oki-Kanae method):
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4. Change in River Discharge by double CO₂(10⁶m³: 2060 - 1990
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5. Estimated 2050 river discharge
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6. TRIP River Discharge per capita (m³/person)
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7. Sigma-D : discharge from upstream (10⁶m³/year)
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8. Available River Discharge at each alpha
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Figures

LSM output Runoff (GSWP)

In mm/year:

In 10⁶m³/gridcell/year:

River discharge estimated from above LSM runoff and TRIP

Discharge : Unit is 10⁶m³/year.

Height of Runoff : Unit is mm/year. Drainage Area is calculated by Oki-Kanae Method (See Basemap)

Change in River Discharge by Double CO₂ (CCSR/NIES AGCM)

Difference in GCM-calculated river discharge between double CO₂ state and present(1990). Unit is 10⁶m³/year. This is NOT the difference between GCM output and observation.

Ratio of GCM-calculated river discharge under double CO₂ state to that of present(1990) state. Unitless. For gridcells where GCM river discharge in present condition is zero, the ratio is not calculated (filled with missing_value). This is NOT the difference between GCM output and observation.

Estimated river dischrage at 2050

Currently we are re-estimating future (2050 or 2060) river flow. There are mainly two methods: Q(future) = Q(now) + δQ (difference in Q. shown above) and Q(future) = Q(now) * f (ratio of Q, shown above))

River Discharge per capita

Unit is m³/person/year. TRIP version population data was used for 1995 calculation.

Sigma-D

Unit is 10⁶m³/year.

Available River Discharge for each Alpha

Unit is 10⁶m³/year.