Geography Reference
In-Depth Information
Table 11.21. The main characteristics of input data for hydrological modelling of Sweden
Data type
Data
Resolution
Source
Meteorological
data
Precipitation, air temperature. Daily sub-
basin means from 1961 to present date
4 km grid based on precipitation
and temperature station data
The PTHBV database (SMHI),
Johansson ( 2002 )
Average ¼ 28 or 10 km 2 ,
median ¼ 18 or 6 km 2
Geographical
data
Sub-basin areas
Swedish Water Archive
(SMHI)
Soil type
Grid, based on sampling with
variable spatial resolution
Soils Database (Geological
Survey of Sweden)
Land use
250 m
Corine Land Cover 2000
(Swedish Land Survey)
Elevation
50 m
GSD-Terrain Elevation
Databank (Swedish Land
Survey)
Hydrographical network
Some 100 000 km of main stream
length
Swedish Water Archive
(SMHI)
Lake
information
Depths, regulation rules, rating curves,
8 000 - 10 000 outlet lakes
Site specific
Swedish Water Archive
(SMHI)
Figure 11.87. (Left) The spatial resolution of the Swedish modelling with the coarser resolution of 17 000 catchments (on average 28 km 2 ).
(Right) Sites of available water gauges.
made manually by using topographic maps and field stud-
ies over several decades. Table 11.21 shows the informa-
tion that was used for regionalisation to predict river flow
in ungauged basins in Sweden.
Method
SMHI had recently developed the Hydrological Predic-
tions for the Environment (HYPE) model (Lindström
et al., 2010 ) when the request came from the Swedish
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