10 Hydrological Impacts of Climate Changes in Romania
319
Fig. 10.5 Differences estimated in the multiannual monthly mean precipitation (averaged for
Romania), between the periods 2021–2050 and 1961–1990 (a) and between the periods 2061–2090
and 1961–1990 (b) (adapted from [122])
10.4 Review of Studies on Streamflow Trends
and Hydrological Impacts of Climate Changes
in Romania
The issue of variability and changes in river flow in Romania has been addressed in
several studies focused on streamflow trends detection, based both on historical data
and under climate scenarios. In this part, a synthesis of such studies is presented, in
order to offer an overview of the Romanian researches in this field.
10.4.1 Observed Changes in River Flow at the Country
and Regional Scale
The first studies in Romania investigating the changes in streamflow variability, based
on the analysis of trends in observational data, have been published in the 1990s. After
2000 the number of studies on this topic has increased significantly [e.g. 134–143,
etc.]. They were conducted mostly at regional scale or watershed level, and have
analyzed parameters related to the mean, maximum and minimum streamflow.
At the Romanian spatial scale, a first study investigated the rivers’ flow trend
during 1976–2005, based on the analysis of mean monthly streamflow from 51
gauging stations (g.s.) corresponding to undisturbed watersheds [140]. The results
319
Fig. 10.5 Differences estimated in the multiannual monthly mean precipitation (averaged for
Romania), between the periods 2021–2050 and 1961–1990 (a) and between the periods 2061–2090
and 1961–1990 (b) (adapted from [122])
10.4 Review of Studies on Streamflow Trends
and Hydrological Impacts of Climate Changes
in Romania
The issue of variability and changes in river flow in Romania has been addressed in
several studies focused on streamflow trends detection, based both on historical data
and under climate scenarios. In this part, a synthesis of such studies is presented, in
order to offer an overview of the Romanian researches in this field.
10.4.1 Observed Changes in River Flow at the Country
and Regional Scale
The first studies in Romania investigating the changes in streamflow variability, based
on the analysis of trends in observational data, have been published in the 1990s. After
2000 the number of studies on this topic has increased significantly [e.g. 134–143,
etc.]. They were conducted mostly at regional scale or watershed level, and have
analyzed parameters related to the mean, maximum and minimum streamflow.
At the Romanian spatial scale, a first study investigated the rivers’ flow trend
during 1976–2005, based on the analysis of mean monthly streamflow from 51
gauging stations (g.s.) corresponding to undisturbed watersheds [140]. The results