Calibration Basins
Last Updated
July 24, 2001
There are two basins which can be used by
modeling groups to calibrate parameters which are not prescribed by
Rhone-AGG (see Table 4.1 of the
Rhone-AGG experimental description). Aspects of the basins are
summarized in Table 6.1. The contributing
area fractions (CAF) for the two basins are shown in Fig. 6.1 together with the topography of the
basin. The masks are shown in Fig. 6.2. The
atmospheric forcing and surface/soil/vegetation parameters for Experiment 1 on the 8x8 km grid are to
be used for the calibration. The total daily runoff from a SVAT
scheme can be compared to the observed discharge (Fig.6.3) on the data distribution (CD). The daily
observed discharge is provided for the entire 4-year simulation
period (Aug. 1, 1985, to July 31, 1989). It is not necessary to
report the final calibration results to us (by default they will be
included in the Experiment 1 outputs).
However, we would like each group to:
- indicate which parameters they calibrated
- report their parameter values
- describe how (if) the values were extrapolated over the domain
The daily river discharge for each of the two
calibration basins can be calculated using the total runoff
(surface, lateral and baseflow/drainage) simulated by the
participant SVAT scheme. Please note that the total simulated
discharge from each of the basins should be calculated using the
corresponding observed basin area listed in TABLE 6.1 (and on the CD distribution), and not
the simulated area which can be calculated using the CAF (also shown
for reference in TABLE 6.1). Please see the
related email on the Memos page for more details.
TABLE 6.1 Calibration basin characteristics (shown in Fig.s 6.1 and 6.2). The
contributing area, average grid box altitudes, number of masked
points and the basin ID (mask index) are shown.
Basin (River, Gauging Site) |
Simulated Area
(km-2) |
Observed Area
(km-2) |
Altitude (m) |
Number of masked points |
Mask index (ID) |
Ognon at Pesmes |
2129 |
2040 |
332 |
55 |
1 |
Ain at Vouglans |
1251 |
1120 |
728 |
29 |
2 |
FIG. 6.1 The contributing area fractions (CAF) for the two
calibration basins. Contours of the grid-box average altitude is
also shown: white lines correspond to heights of 500 and 1000 m, red
lines correspond to 1500 and 2000 m, and black lines correspond to
2500 and 3000 m.
FIG. 6.2 The grid masks for the two calibration
basins.
FIG. 6.3 The observed daily discharge at the two gauging sites
which is available for model calibration.
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